• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Pinctrl driver for Rockchip SoCs
4  *
5  * Copyright (c) 2013 MundoReader S.L.
6  * Author: Heiko Stuebner <heiko@sntech.de>
7  *
8  * With some ideas taken from pinctrl-samsung:
9  * Copyright (c) 2012 Samsung Electronics Co., Ltd.
10  *		http://www.samsung.com
11  * Copyright (c) 2012 Linaro Ltd
12  *		https://www.linaro.org
13  *
14  * and pinctrl-at91:
15  * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
16  */
17 
18 #include <linux/init.h>
19 #include <linux/platform_device.h>
20 #include <linux/io.h>
21 #include <linux/bitops.h>
22 #include <linux/gpio/driver.h>
23 #include <linux/of_address.h>
24 #include <linux/of_irq.h>
25 #include <linux/pinctrl/machine.h>
26 #include <linux/pinctrl/pinconf.h>
27 #include <linux/pinctrl/pinctrl.h>
28 #include <linux/pinctrl/pinmux.h>
29 #include <linux/pinctrl/pinconf-generic.h>
30 #include <linux/irqchip/chained_irq.h>
31 #include <linux/clk.h>
32 #include <linux/regmap.h>
33 #include <linux/mfd/syscon.h>
34 #include <dt-bindings/pinctrl/rockchip.h>
35 
36 #include "core.h"
37 #include "pinconf.h"
38 
39 /* GPIO control registers */
40 #define GPIO_SWPORT_DR		0x00
41 #define GPIO_SWPORT_DDR		0x04
42 #define GPIO_INTEN		0x30
43 #define GPIO_INTMASK		0x34
44 #define GPIO_INTTYPE_LEVEL	0x38
45 #define GPIO_INT_POLARITY	0x3c
46 #define GPIO_INT_STATUS		0x40
47 #define GPIO_INT_RAWSTATUS	0x44
48 #define GPIO_DEBOUNCE		0x48
49 #define GPIO_PORTS_EOI		0x4c
50 #define GPIO_EXT_PORT		0x50
51 #define GPIO_LS_SYNC		0x60
52 
53 enum rockchip_pinctrl_type {
54 	PX30,
55 	RV1108,
56 	RK2928,
57 	RK3066B,
58 	RK3128,
59 	RK3188,
60 	RK3288,
61 	RK3308,
62 	RK3368,
63 	RK3399,
64 };
65 
66 /*
67  * Encode variants of iomux registers into a type variable
68  */
69 #define IOMUX_GPIO_ONLY		BIT(0)
70 #define IOMUX_WIDTH_4BIT	BIT(1)
71 #define IOMUX_SOURCE_PMU	BIT(2)
72 #define IOMUX_UNROUTED		BIT(3)
73 #define IOMUX_WIDTH_3BIT	BIT(4)
74 #define IOMUX_WIDTH_2BIT	BIT(5)
75 
76 /**
77  * struct rockchip_iomux
78  * @type: iomux variant using IOMUX_* constants
79  * @offset: if initialized to -1 it will be autocalculated, by specifying
80  *	    an initial offset value the relevant source offset can be reset
81  *	    to a new value for autocalculating the following iomux registers.
82  */
83 struct rockchip_iomux {
84 	int				type;
85 	int				offset;
86 };
87 
88 /*
89  * enum type index corresponding to rockchip_perpin_drv_list arrays index.
90  */
91 enum rockchip_pin_drv_type {
92 	DRV_TYPE_IO_DEFAULT = 0,
93 	DRV_TYPE_IO_1V8_OR_3V0,
94 	DRV_TYPE_IO_1V8_ONLY,
95 	DRV_TYPE_IO_1V8_3V0_AUTO,
96 	DRV_TYPE_IO_3V3_ONLY,
97 	DRV_TYPE_MAX
98 };
99 
100 /*
101  * enum type index corresponding to rockchip_pull_list arrays index.
102  */
103 enum rockchip_pin_pull_type {
104 	PULL_TYPE_IO_DEFAULT = 0,
105 	PULL_TYPE_IO_1V8_ONLY,
106 	PULL_TYPE_MAX
107 };
108 
109 /**
110  * struct rockchip_drv
111  * @drv_type: drive strength variant using rockchip_perpin_drv_type
112  * @offset: if initialized to -1 it will be autocalculated, by specifying
113  *	    an initial offset value the relevant source offset can be reset
114  *	    to a new value for autocalculating the following drive strength
115  *	    registers. if used chips own cal_drv func instead to calculate
116  *	    registers offset, the variant could be ignored.
117  */
118 struct rockchip_drv {
119 	enum rockchip_pin_drv_type	drv_type;
120 	int				offset;
121 };
122 
123 /**
124  * struct rockchip_pin_bank
125  * @reg_base: register base of the gpio bank
126  * @regmap_pull: optional separate register for additional pull settings
127  * @clk: clock of the gpio bank
128  * @irq: interrupt of the gpio bank
129  * @saved_masks: Saved content of GPIO_INTEN at suspend time.
130  * @pin_base: first pin number
131  * @nr_pins: number of pins in this bank
132  * @name: name of the bank
133  * @bank_num: number of the bank, to account for holes
134  * @iomux: array describing the 4 iomux sources of the bank
135  * @drv: array describing the 4 drive strength sources of the bank
136  * @pull_type: array describing the 4 pull type sources of the bank
137  * @valid: is all necessary information present
138  * @of_node: dt node of this bank
139  * @drvdata: common pinctrl basedata
140  * @domain: irqdomain of the gpio bank
141  * @gpio_chip: gpiolib chip
142  * @grange: gpio range
143  * @slock: spinlock for the gpio bank
144  * @toggle_edge_mode: bit mask to toggle (falling/rising) edge mode
145  * @recalced_mask: bit mask to indicate a need to recalulate the mask
146  * @route_mask: bits describing the routing pins of per bank
147  */
148 struct rockchip_pin_bank {
149 	void __iomem			*reg_base;
150 	struct regmap			*regmap_pull;
151 	struct clk			*clk;
152 	int				irq;
153 	u32				saved_masks;
154 	u32				pin_base;
155 	u8				nr_pins;
156 	char				*name;
157 	u8				bank_num;
158 	struct rockchip_iomux		iomux[4];
159 	struct rockchip_drv		drv[4];
160 	enum rockchip_pin_pull_type	pull_type[4];
161 	bool				valid;
162 	struct device_node		*of_node;
163 	struct rockchip_pinctrl		*drvdata;
164 	struct irq_domain		*domain;
165 	struct gpio_chip		gpio_chip;
166 	struct pinctrl_gpio_range	grange;
167 	raw_spinlock_t			slock;
168 	u32				toggle_edge_mode;
169 	u32				recalced_mask;
170 	u32				route_mask;
171 };
172 
173 #define PIN_BANK(id, pins, label)			\
174 	{						\
175 		.bank_num	= id,			\
176 		.nr_pins	= pins,			\
177 		.name		= label,		\
178 		.iomux		= {			\
179 			{ .offset = -1 },		\
180 			{ .offset = -1 },		\
181 			{ .offset = -1 },		\
182 			{ .offset = -1 },		\
183 		},					\
184 	}
185 
186 #define PIN_BANK_IOMUX_FLAGS(id, pins, label, iom0, iom1, iom2, iom3)	\
187 	{								\
188 		.bank_num	= id,					\
189 		.nr_pins	= pins,					\
190 		.name		= label,				\
191 		.iomux		= {					\
192 			{ .type = iom0, .offset = -1 },			\
193 			{ .type = iom1, .offset = -1 },			\
194 			{ .type = iom2, .offset = -1 },			\
195 			{ .type = iom3, .offset = -1 },			\
196 		},							\
197 	}
198 
199 #define PIN_BANK_DRV_FLAGS(id, pins, label, type0, type1, type2, type3) \
200 	{								\
201 		.bank_num	= id,					\
202 		.nr_pins	= pins,					\
203 		.name		= label,				\
204 		.iomux		= {					\
205 			{ .offset = -1 },				\
206 			{ .offset = -1 },				\
207 			{ .offset = -1 },				\
208 			{ .offset = -1 },				\
209 		},							\
210 		.drv		= {					\
211 			{ .drv_type = type0, .offset = -1 },		\
212 			{ .drv_type = type1, .offset = -1 },		\
213 			{ .drv_type = type2, .offset = -1 },		\
214 			{ .drv_type = type3, .offset = -1 },		\
215 		},							\
216 	}
217 
218 #define PIN_BANK_DRV_FLAGS_PULL_FLAGS(id, pins, label, drv0, drv1,	\
219 				      drv2, drv3, pull0, pull1,		\
220 				      pull2, pull3)			\
221 	{								\
222 		.bank_num	= id,					\
223 		.nr_pins	= pins,					\
224 		.name		= label,				\
225 		.iomux		= {					\
226 			{ .offset = -1 },				\
227 			{ .offset = -1 },				\
228 			{ .offset = -1 },				\
229 			{ .offset = -1 },				\
230 		},							\
231 		.drv		= {					\
232 			{ .drv_type = drv0, .offset = -1 },		\
233 			{ .drv_type = drv1, .offset = -1 },		\
234 			{ .drv_type = drv2, .offset = -1 },		\
235 			{ .drv_type = drv3, .offset = -1 },		\
236 		},							\
237 		.pull_type[0] = pull0,					\
238 		.pull_type[1] = pull1,					\
239 		.pull_type[2] = pull2,					\
240 		.pull_type[3] = pull3,					\
241 	}
242 
243 #define PIN_BANK_IOMUX_DRV_FLAGS_OFFSET(id, pins, label, iom0, iom1,	\
244 					iom2, iom3, drv0, drv1, drv2,	\
245 					drv3, offset0, offset1,		\
246 					offset2, offset3)		\
247 	{								\
248 		.bank_num	= id,					\
249 		.nr_pins	= pins,					\
250 		.name		= label,				\
251 		.iomux		= {					\
252 			{ .type = iom0, .offset = -1 },			\
253 			{ .type = iom1, .offset = -1 },			\
254 			{ .type = iom2, .offset = -1 },			\
255 			{ .type = iom3, .offset = -1 },			\
256 		},							\
257 		.drv		= {					\
258 			{ .drv_type = drv0, .offset = offset0 },	\
259 			{ .drv_type = drv1, .offset = offset1 },	\
260 			{ .drv_type = drv2, .offset = offset2 },	\
261 			{ .drv_type = drv3, .offset = offset3 },	\
262 		},							\
263 	}
264 
265 #define PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET_PULL_FLAGS(id, pins,	\
266 					      label, iom0, iom1, iom2,  \
267 					      iom3, drv0, drv1, drv2,   \
268 					      drv3, offset0, offset1,   \
269 					      offset2, offset3, pull0,  \
270 					      pull1, pull2, pull3)	\
271 	{								\
272 		.bank_num	= id,					\
273 		.nr_pins	= pins,					\
274 		.name		= label,				\
275 		.iomux		= {					\
276 			{ .type = iom0, .offset = -1 },			\
277 			{ .type = iom1, .offset = -1 },			\
278 			{ .type = iom2, .offset = -1 },			\
279 			{ .type = iom3, .offset = -1 },			\
280 		},							\
281 		.drv		= {					\
282 			{ .drv_type = drv0, .offset = offset0 },	\
283 			{ .drv_type = drv1, .offset = offset1 },	\
284 			{ .drv_type = drv2, .offset = offset2 },	\
285 			{ .drv_type = drv3, .offset = offset3 },	\
286 		},							\
287 		.pull_type[0] = pull0,					\
288 		.pull_type[1] = pull1,					\
289 		.pull_type[2] = pull2,					\
290 		.pull_type[3] = pull3,					\
291 	}
292 
293 /**
294  * struct rockchip_mux_recalced_data: represent a pin iomux data.
295  * @num: bank number.
296  * @pin: pin number.
297  * @bit: index at register.
298  * @reg: register offset.
299  * @mask: mask bit
300  */
301 struct rockchip_mux_recalced_data {
302 	u8 num;
303 	u8 pin;
304 	u32 reg;
305 	u8 bit;
306 	u8 mask;
307 };
308 
309 enum rockchip_mux_route_location {
310 	ROCKCHIP_ROUTE_SAME = 0,
311 	ROCKCHIP_ROUTE_PMU,
312 	ROCKCHIP_ROUTE_GRF,
313 };
314 
315 /**
316  * struct rockchip_mux_recalced_data: represent a pin iomux data.
317  * @bank_num: bank number.
318  * @pin: index at register or used to calc index.
319  * @func: the min pin.
320  * @route_location: the mux route location (same, pmu, grf).
321  * @route_offset: the max pin.
322  * @route_val: the register offset.
323  */
324 struct rockchip_mux_route_data {
325 	u8 bank_num;
326 	u8 pin;
327 	u8 func;
328 	enum rockchip_mux_route_location route_location;
329 	u32 route_offset;
330 	u32 route_val;
331 };
332 
333 struct rockchip_pin_ctrl {
334 	struct rockchip_pin_bank	*pin_banks;
335 	u32				nr_banks;
336 	u32				nr_pins;
337 	char				*label;
338 	enum rockchip_pinctrl_type	type;
339 	int				grf_mux_offset;
340 	int				pmu_mux_offset;
341 	int				grf_drv_offset;
342 	int				pmu_drv_offset;
343 	struct rockchip_mux_recalced_data *iomux_recalced;
344 	u32				niomux_recalced;
345 	struct rockchip_mux_route_data *iomux_routes;
346 	u32				niomux_routes;
347 
348 	void	(*pull_calc_reg)(struct rockchip_pin_bank *bank,
349 				    int pin_num, struct regmap **regmap,
350 				    int *reg, u8 *bit);
351 	void	(*drv_calc_reg)(struct rockchip_pin_bank *bank,
352 				    int pin_num, struct regmap **regmap,
353 				    int *reg, u8 *bit);
354 	int	(*schmitt_calc_reg)(struct rockchip_pin_bank *bank,
355 				    int pin_num, struct regmap **regmap,
356 				    int *reg, u8 *bit);
357 };
358 
359 struct rockchip_pin_config {
360 	unsigned int		func;
361 	unsigned long		*configs;
362 	unsigned int		nconfigs;
363 };
364 
365 /**
366  * struct rockchip_pin_group: represent group of pins of a pinmux function.
367  * @name: name of the pin group, used to lookup the group.
368  * @pins: the pins included in this group.
369  * @npins: number of pins included in this group.
370  * @data: local pin configuration
371  */
372 struct rockchip_pin_group {
373 	const char			*name;
374 	unsigned int			npins;
375 	unsigned int			*pins;
376 	struct rockchip_pin_config	*data;
377 };
378 
379 /**
380  * struct rockchip_pmx_func: represent a pin function.
381  * @name: name of the pin function, used to lookup the function.
382  * @groups: one or more names of pin groups that provide this function.
383  * @ngroups: number of groups included in @groups.
384  */
385 struct rockchip_pmx_func {
386 	const char		*name;
387 	const char		**groups;
388 	u8			ngroups;
389 };
390 
391 struct rockchip_pinctrl {
392 	struct regmap			*regmap_base;
393 	int				reg_size;
394 	struct regmap			*regmap_pull;
395 	struct regmap			*regmap_pmu;
396 	struct device			*dev;
397 	struct rockchip_pin_ctrl	*ctrl;
398 	struct pinctrl_desc		pctl;
399 	struct pinctrl_dev		*pctl_dev;
400 	struct rockchip_pin_group	*groups;
401 	unsigned int			ngroups;
402 	struct rockchip_pmx_func	*functions;
403 	unsigned int			nfunctions;
404 };
405 
406 static struct regmap_config rockchip_regmap_config = {
407 	.reg_bits = 32,
408 	.val_bits = 32,
409 	.reg_stride = 4,
410 };
411 
pinctrl_name_to_group(const struct rockchip_pinctrl * info,const char * name)412 static inline const struct rockchip_pin_group *pinctrl_name_to_group(
413 					const struct rockchip_pinctrl *info,
414 					const char *name)
415 {
416 	int i;
417 
418 	for (i = 0; i < info->ngroups; i++) {
419 		if (!strcmp(info->groups[i].name, name))
420 			return &info->groups[i];
421 	}
422 
423 	return NULL;
424 }
425 
426 /*
427  * given a pin number that is local to a pin controller, find out the pin bank
428  * and the register base of the pin bank.
429  */
pin_to_bank(struct rockchip_pinctrl * info,unsigned pin)430 static struct rockchip_pin_bank *pin_to_bank(struct rockchip_pinctrl *info,
431 								unsigned pin)
432 {
433 	struct rockchip_pin_bank *b = info->ctrl->pin_banks;
434 
435 	while (pin >= (b->pin_base + b->nr_pins))
436 		b++;
437 
438 	return b;
439 }
440 
bank_num_to_bank(struct rockchip_pinctrl * info,unsigned num)441 static struct rockchip_pin_bank *bank_num_to_bank(
442 					struct rockchip_pinctrl *info,
443 					unsigned num)
444 {
445 	struct rockchip_pin_bank *b = info->ctrl->pin_banks;
446 	int i;
447 
448 	for (i = 0; i < info->ctrl->nr_banks; i++, b++) {
449 		if (b->bank_num == num)
450 			return b;
451 	}
452 
453 	return ERR_PTR(-EINVAL);
454 }
455 
456 /*
457  * Pinctrl_ops handling
458  */
459 
rockchip_get_groups_count(struct pinctrl_dev * pctldev)460 static int rockchip_get_groups_count(struct pinctrl_dev *pctldev)
461 {
462 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
463 
464 	return info->ngroups;
465 }
466 
rockchip_get_group_name(struct pinctrl_dev * pctldev,unsigned selector)467 static const char *rockchip_get_group_name(struct pinctrl_dev *pctldev,
468 							unsigned selector)
469 {
470 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
471 
472 	return info->groups[selector].name;
473 }
474 
rockchip_get_group_pins(struct pinctrl_dev * pctldev,unsigned selector,const unsigned ** pins,unsigned * npins)475 static int rockchip_get_group_pins(struct pinctrl_dev *pctldev,
476 				      unsigned selector, const unsigned **pins,
477 				      unsigned *npins)
478 {
479 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
480 
481 	if (selector >= info->ngroups)
482 		return -EINVAL;
483 
484 	*pins = info->groups[selector].pins;
485 	*npins = info->groups[selector].npins;
486 
487 	return 0;
488 }
489 
rockchip_dt_node_to_map(struct pinctrl_dev * pctldev,struct device_node * np,struct pinctrl_map ** map,unsigned * num_maps)490 static int rockchip_dt_node_to_map(struct pinctrl_dev *pctldev,
491 				 struct device_node *np,
492 				 struct pinctrl_map **map, unsigned *num_maps)
493 {
494 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
495 	const struct rockchip_pin_group *grp;
496 	struct pinctrl_map *new_map;
497 	struct device_node *parent;
498 	int map_num = 1;
499 	int i;
500 
501 	/*
502 	 * first find the group of this node and check if we need to create
503 	 * config maps for pins
504 	 */
505 	grp = pinctrl_name_to_group(info, np->name);
506 	if (!grp) {
507 		dev_err(info->dev, "unable to find group for node %pOFn\n",
508 			np);
509 		return -EINVAL;
510 	}
511 
512 	map_num += grp->npins;
513 
514 	new_map = kcalloc(map_num, sizeof(*new_map), GFP_KERNEL);
515 	if (!new_map)
516 		return -ENOMEM;
517 
518 	*map = new_map;
519 	*num_maps = map_num;
520 
521 	/* create mux map */
522 	parent = of_get_parent(np);
523 	if (!parent) {
524 		kfree(new_map);
525 		return -EINVAL;
526 	}
527 	new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
528 	new_map[0].data.mux.function = parent->name;
529 	new_map[0].data.mux.group = np->name;
530 	of_node_put(parent);
531 
532 	/* create config map */
533 	new_map++;
534 	for (i = 0; i < grp->npins; i++) {
535 		new_map[i].type = PIN_MAP_TYPE_CONFIGS_PIN;
536 		new_map[i].data.configs.group_or_pin =
537 				pin_get_name(pctldev, grp->pins[i]);
538 		new_map[i].data.configs.configs = grp->data[i].configs;
539 		new_map[i].data.configs.num_configs = grp->data[i].nconfigs;
540 	}
541 
542 	dev_dbg(pctldev->dev, "maps: function %s group %s num %d\n",
543 		(*map)->data.mux.function, (*map)->data.mux.group, map_num);
544 
545 	return 0;
546 }
547 
rockchip_dt_free_map(struct pinctrl_dev * pctldev,struct pinctrl_map * map,unsigned num_maps)548 static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
549 				    struct pinctrl_map *map, unsigned num_maps)
550 {
551 	kfree(map);
552 }
553 
554 static const struct pinctrl_ops rockchip_pctrl_ops = {
555 	.get_groups_count	= rockchip_get_groups_count,
556 	.get_group_name		= rockchip_get_group_name,
557 	.get_group_pins		= rockchip_get_group_pins,
558 	.dt_node_to_map		= rockchip_dt_node_to_map,
559 	.dt_free_map		= rockchip_dt_free_map,
560 };
561 
562 /*
563  * Hardware access
564  */
565 
566 static struct rockchip_mux_recalced_data rv1108_mux_recalced_data[] = {
567 	{
568 		.num = 1,
569 		.pin = 0,
570 		.reg = 0x418,
571 		.bit = 0,
572 		.mask = 0x3
573 	}, {
574 		.num = 1,
575 		.pin = 1,
576 		.reg = 0x418,
577 		.bit = 2,
578 		.mask = 0x3
579 	}, {
580 		.num = 1,
581 		.pin = 2,
582 		.reg = 0x418,
583 		.bit = 4,
584 		.mask = 0x3
585 	}, {
586 		.num = 1,
587 		.pin = 3,
588 		.reg = 0x418,
589 		.bit = 6,
590 		.mask = 0x3
591 	}, {
592 		.num = 1,
593 		.pin = 4,
594 		.reg = 0x418,
595 		.bit = 8,
596 		.mask = 0x3
597 	}, {
598 		.num = 1,
599 		.pin = 5,
600 		.reg = 0x418,
601 		.bit = 10,
602 		.mask = 0x3
603 	}, {
604 		.num = 1,
605 		.pin = 6,
606 		.reg = 0x418,
607 		.bit = 12,
608 		.mask = 0x3
609 	}, {
610 		.num = 1,
611 		.pin = 7,
612 		.reg = 0x418,
613 		.bit = 14,
614 		.mask = 0x3
615 	}, {
616 		.num = 1,
617 		.pin = 8,
618 		.reg = 0x41c,
619 		.bit = 0,
620 		.mask = 0x3
621 	}, {
622 		.num = 1,
623 		.pin = 9,
624 		.reg = 0x41c,
625 		.bit = 2,
626 		.mask = 0x3
627 	},
628 };
629 
630 static  struct rockchip_mux_recalced_data rk3128_mux_recalced_data[] = {
631 	{
632 		.num = 2,
633 		.pin = 20,
634 		.reg = 0xe8,
635 		.bit = 0,
636 		.mask = 0x7
637 	}, {
638 		.num = 2,
639 		.pin = 21,
640 		.reg = 0xe8,
641 		.bit = 4,
642 		.mask = 0x7
643 	}, {
644 		.num = 2,
645 		.pin = 22,
646 		.reg = 0xe8,
647 		.bit = 8,
648 		.mask = 0x7
649 	}, {
650 		.num = 2,
651 		.pin = 23,
652 		.reg = 0xe8,
653 		.bit = 12,
654 		.mask = 0x7
655 	}, {
656 		.num = 2,
657 		.pin = 24,
658 		.reg = 0xd4,
659 		.bit = 12,
660 		.mask = 0x7
661 	},
662 };
663 
664 static struct rockchip_mux_recalced_data rk3308_mux_recalced_data[] = {
665 	{
666 		/* gpio1b6_sel */
667 		.num = 1,
668 		.pin = 14,
669 		.reg = 0x28,
670 		.bit = 12,
671 		.mask = 0xf
672 	}, {
673 		/* gpio1b7_sel */
674 		.num = 1,
675 		.pin = 15,
676 		.reg = 0x2c,
677 		.bit = 0,
678 		.mask = 0x3
679 	}, {
680 		/* gpio1c2_sel */
681 		.num = 1,
682 		.pin = 18,
683 		.reg = 0x30,
684 		.bit = 4,
685 		.mask = 0xf
686 	}, {
687 		/* gpio1c3_sel */
688 		.num = 1,
689 		.pin = 19,
690 		.reg = 0x30,
691 		.bit = 8,
692 		.mask = 0xf
693 	}, {
694 		/* gpio1c4_sel */
695 		.num = 1,
696 		.pin = 20,
697 		.reg = 0x30,
698 		.bit = 12,
699 		.mask = 0xf
700 	}, {
701 		/* gpio1c5_sel */
702 		.num = 1,
703 		.pin = 21,
704 		.reg = 0x34,
705 		.bit = 0,
706 		.mask = 0xf
707 	}, {
708 		/* gpio1c6_sel */
709 		.num = 1,
710 		.pin = 22,
711 		.reg = 0x34,
712 		.bit = 4,
713 		.mask = 0xf
714 	}, {
715 		/* gpio1c7_sel */
716 		.num = 1,
717 		.pin = 23,
718 		.reg = 0x34,
719 		.bit = 8,
720 		.mask = 0xf
721 	}, {
722 		/* gpio3b4_sel */
723 		.num = 3,
724 		.pin = 12,
725 		.reg = 0x68,
726 		.bit = 8,
727 		.mask = 0xf
728 	}, {
729 		/* gpio3b5_sel */
730 		.num = 3,
731 		.pin = 13,
732 		.reg = 0x68,
733 		.bit = 12,
734 		.mask = 0xf
735 	}, {
736 		/* gpio2a2_sel */
737 		.num = 2,
738 		.pin = 2,
739 		.reg = 0x40,
740 		.bit = 4,
741 		.mask = 0x3
742 	}, {
743 		/* gpio2a3_sel */
744 		.num = 2,
745 		.pin = 3,
746 		.reg = 0x40,
747 		.bit = 6,
748 		.mask = 0x3
749 	}, {
750 		/* gpio2c0_sel */
751 		.num = 2,
752 		.pin = 16,
753 		.reg = 0x50,
754 		.bit = 0,
755 		.mask = 0x3
756 	}, {
757 		/* gpio3b2_sel */
758 		.num = 3,
759 		.pin = 10,
760 		.reg = 0x68,
761 		.bit = 4,
762 		.mask = 0x3
763 	}, {
764 		/* gpio3b3_sel */
765 		.num = 3,
766 		.pin = 11,
767 		.reg = 0x68,
768 		.bit = 6,
769 		.mask = 0x3
770 	},
771 };
772 
773 static struct rockchip_mux_recalced_data rk3328_mux_recalced_data[] = {
774 	{
775 		.num = 2,
776 		.pin = 12,
777 		.reg = 0x24,
778 		.bit = 8,
779 		.mask = 0x3
780 	}, {
781 		.num = 2,
782 		.pin = 15,
783 		.reg = 0x28,
784 		.bit = 0,
785 		.mask = 0x7
786 	}, {
787 		.num = 2,
788 		.pin = 23,
789 		.reg = 0x30,
790 		.bit = 14,
791 		.mask = 0x3
792 	},
793 };
794 
rockchip_get_recalced_mux(struct rockchip_pin_bank * bank,int pin,int * reg,u8 * bit,int * mask)795 static void rockchip_get_recalced_mux(struct rockchip_pin_bank *bank, int pin,
796 				      int *reg, u8 *bit, int *mask)
797 {
798 	struct rockchip_pinctrl *info = bank->drvdata;
799 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
800 	struct rockchip_mux_recalced_data *data;
801 	int i;
802 
803 	for (i = 0; i < ctrl->niomux_recalced; i++) {
804 		data = &ctrl->iomux_recalced[i];
805 		if (data->num == bank->bank_num &&
806 		    data->pin == pin)
807 			break;
808 	}
809 
810 	if (i >= ctrl->niomux_recalced)
811 		return;
812 
813 	*reg = data->reg;
814 	*mask = data->mask;
815 	*bit = data->bit;
816 }
817 
818 static struct rockchip_mux_route_data px30_mux_route_data[] = {
819 	{
820 		/* cif-d2m0 */
821 		.bank_num = 2,
822 		.pin = 0,
823 		.func = 1,
824 		.route_offset = 0x184,
825 		.route_val = BIT(16 + 7),
826 	}, {
827 		/* cif-d2m1 */
828 		.bank_num = 3,
829 		.pin = 3,
830 		.func = 3,
831 		.route_offset = 0x184,
832 		.route_val = BIT(16 + 7) | BIT(7),
833 	}, {
834 		/* pdm-m0 */
835 		.bank_num = 3,
836 		.pin = 22,
837 		.func = 2,
838 		.route_offset = 0x184,
839 		.route_val = BIT(16 + 8),
840 	}, {
841 		/* pdm-m1 */
842 		.bank_num = 2,
843 		.pin = 22,
844 		.func = 1,
845 		.route_offset = 0x184,
846 		.route_val = BIT(16 + 8) | BIT(8),
847 	}, {
848 		/* uart2-rxm0 */
849 		.bank_num = 1,
850 		.pin = 27,
851 		.func = 2,
852 		.route_offset = 0x184,
853 		.route_val = BIT(16 + 10),
854 	}, {
855 		/* uart2-rxm1 */
856 		.bank_num = 2,
857 		.pin = 14,
858 		.func = 2,
859 		.route_offset = 0x184,
860 		.route_val = BIT(16 + 10) | BIT(10),
861 	}, {
862 		/* uart3-rxm0 */
863 		.bank_num = 0,
864 		.pin = 17,
865 		.func = 2,
866 		.route_offset = 0x184,
867 		.route_val = BIT(16 + 9),
868 	}, {
869 		/* uart3-rxm1 */
870 		.bank_num = 1,
871 		.pin = 15,
872 		.func = 2,
873 		.route_offset = 0x184,
874 		.route_val = BIT(16 + 9) | BIT(9),
875 	},
876 };
877 
878 static struct rockchip_mux_route_data rk3128_mux_route_data[] = {
879 	{
880 		/* spi-0 */
881 		.bank_num = 1,
882 		.pin = 10,
883 		.func = 1,
884 		.route_offset = 0x144,
885 		.route_val = BIT(16 + 3) | BIT(16 + 4),
886 	}, {
887 		/* spi-1 */
888 		.bank_num = 1,
889 		.pin = 27,
890 		.func = 3,
891 		.route_offset = 0x144,
892 		.route_val = BIT(16 + 3) | BIT(16 + 4) | BIT(3),
893 	}, {
894 		/* spi-2 */
895 		.bank_num = 0,
896 		.pin = 13,
897 		.func = 2,
898 		.route_offset = 0x144,
899 		.route_val = BIT(16 + 3) | BIT(16 + 4) | BIT(4),
900 	}, {
901 		/* i2s-0 */
902 		.bank_num = 1,
903 		.pin = 5,
904 		.func = 1,
905 		.route_offset = 0x144,
906 		.route_val = BIT(16 + 5),
907 	}, {
908 		/* i2s-1 */
909 		.bank_num = 0,
910 		.pin = 14,
911 		.func = 1,
912 		.route_offset = 0x144,
913 		.route_val = BIT(16 + 5) | BIT(5),
914 	}, {
915 		/* emmc-0 */
916 		.bank_num = 1,
917 		.pin = 22,
918 		.func = 2,
919 		.route_offset = 0x144,
920 		.route_val = BIT(16 + 6),
921 	}, {
922 		/* emmc-1 */
923 		.bank_num = 2,
924 		.pin = 4,
925 		.func = 2,
926 		.route_offset = 0x144,
927 		.route_val = BIT(16 + 6) | BIT(6),
928 	},
929 };
930 
931 static struct rockchip_mux_route_data rk3188_mux_route_data[] = {
932 	{
933 		/* non-iomuxed emmc/flash pins on flash-dqs */
934 		.bank_num = 0,
935 		.pin = 24,
936 		.func = 1,
937 		.route_location = ROCKCHIP_ROUTE_GRF,
938 		.route_offset = 0xa0,
939 		.route_val = BIT(16 + 11),
940 	}, {
941 		/* non-iomuxed emmc/flash pins on emmc-clk */
942 		.bank_num = 0,
943 		.pin = 24,
944 		.func = 2,
945 		.route_location = ROCKCHIP_ROUTE_GRF,
946 		.route_offset = 0xa0,
947 		.route_val = BIT(16 + 11) | BIT(11),
948 	},
949 };
950 
951 static struct rockchip_mux_route_data rk3228_mux_route_data[] = {
952 	{
953 		/* pwm0-0 */
954 		.bank_num = 0,
955 		.pin = 26,
956 		.func = 1,
957 		.route_offset = 0x50,
958 		.route_val = BIT(16),
959 	}, {
960 		/* pwm0-1 */
961 		.bank_num = 3,
962 		.pin = 21,
963 		.func = 1,
964 		.route_offset = 0x50,
965 		.route_val = BIT(16) | BIT(0),
966 	}, {
967 		/* pwm1-0 */
968 		.bank_num = 0,
969 		.pin = 27,
970 		.func = 1,
971 		.route_offset = 0x50,
972 		.route_val = BIT(16 + 1),
973 	}, {
974 		/* pwm1-1 */
975 		.bank_num = 0,
976 		.pin = 30,
977 		.func = 2,
978 		.route_offset = 0x50,
979 		.route_val = BIT(16 + 1) | BIT(1),
980 	}, {
981 		/* pwm2-0 */
982 		.bank_num = 0,
983 		.pin = 28,
984 		.func = 1,
985 		.route_offset = 0x50,
986 		.route_val = BIT(16 + 2),
987 	}, {
988 		/* pwm2-1 */
989 		.bank_num = 1,
990 		.pin = 12,
991 		.func = 2,
992 		.route_offset = 0x50,
993 		.route_val = BIT(16 + 2) | BIT(2),
994 	}, {
995 		/* pwm3-0 */
996 		.bank_num = 3,
997 		.pin = 26,
998 		.func = 1,
999 		.route_offset = 0x50,
1000 		.route_val = BIT(16 + 3),
1001 	}, {
1002 		/* pwm3-1 */
1003 		.bank_num = 1,
1004 		.pin = 11,
1005 		.func = 2,
1006 		.route_offset = 0x50,
1007 		.route_val = BIT(16 + 3) | BIT(3),
1008 	}, {
1009 		/* sdio-0_d0 */
1010 		.bank_num = 1,
1011 		.pin = 1,
1012 		.func = 1,
1013 		.route_offset = 0x50,
1014 		.route_val = BIT(16 + 4),
1015 	}, {
1016 		/* sdio-1_d0 */
1017 		.bank_num = 3,
1018 		.pin = 2,
1019 		.func = 1,
1020 		.route_offset = 0x50,
1021 		.route_val = BIT(16 + 4) | BIT(4),
1022 	}, {
1023 		/* spi-0_rx */
1024 		.bank_num = 0,
1025 		.pin = 13,
1026 		.func = 2,
1027 		.route_offset = 0x50,
1028 		.route_val = BIT(16 + 5),
1029 	}, {
1030 		/* spi-1_rx */
1031 		.bank_num = 2,
1032 		.pin = 0,
1033 		.func = 2,
1034 		.route_offset = 0x50,
1035 		.route_val = BIT(16 + 5) | BIT(5),
1036 	}, {
1037 		/* emmc-0_cmd */
1038 		.bank_num = 1,
1039 		.pin = 22,
1040 		.func = 2,
1041 		.route_offset = 0x50,
1042 		.route_val = BIT(16 + 7),
1043 	}, {
1044 		/* emmc-1_cmd */
1045 		.bank_num = 2,
1046 		.pin = 4,
1047 		.func = 2,
1048 		.route_offset = 0x50,
1049 		.route_val = BIT(16 + 7) | BIT(7),
1050 	}, {
1051 		/* uart2-0_rx */
1052 		.bank_num = 1,
1053 		.pin = 19,
1054 		.func = 2,
1055 		.route_offset = 0x50,
1056 		.route_val = BIT(16 + 8),
1057 	}, {
1058 		/* uart2-1_rx */
1059 		.bank_num = 1,
1060 		.pin = 10,
1061 		.func = 2,
1062 		.route_offset = 0x50,
1063 		.route_val = BIT(16 + 8) | BIT(8),
1064 	}, {
1065 		/* uart1-0_rx */
1066 		.bank_num = 1,
1067 		.pin = 10,
1068 		.func = 1,
1069 		.route_offset = 0x50,
1070 		.route_val = BIT(16 + 11),
1071 	}, {
1072 		/* uart1-1_rx */
1073 		.bank_num = 3,
1074 		.pin = 13,
1075 		.func = 1,
1076 		.route_offset = 0x50,
1077 		.route_val = BIT(16 + 11) | BIT(11),
1078 	},
1079 };
1080 
1081 static struct rockchip_mux_route_data rk3288_mux_route_data[] = {
1082 	{
1083 		/* edphdmi_cecinoutt1 */
1084 		.bank_num = 7,
1085 		.pin = 16,
1086 		.func = 2,
1087 		.route_offset = 0x264,
1088 		.route_val = BIT(16 + 12) | BIT(12),
1089 	}, {
1090 		/* edphdmi_cecinout */
1091 		.bank_num = 7,
1092 		.pin = 23,
1093 		.func = 4,
1094 		.route_offset = 0x264,
1095 		.route_val = BIT(16 + 12),
1096 	},
1097 };
1098 
1099 static struct rockchip_mux_route_data rk3308_mux_route_data[] = {
1100 	{
1101 		/* rtc_clk */
1102 		.bank_num = 0,
1103 		.pin = 19,
1104 		.func = 1,
1105 		.route_offset = 0x314,
1106 		.route_val = BIT(16 + 0) | BIT(0),
1107 	}, {
1108 		/* uart2_rxm0 */
1109 		.bank_num = 1,
1110 		.pin = 22,
1111 		.func = 2,
1112 		.route_offset = 0x314,
1113 		.route_val = BIT(16 + 2) | BIT(16 + 3),
1114 	}, {
1115 		/* uart2_rxm1 */
1116 		.bank_num = 4,
1117 		.pin = 26,
1118 		.func = 2,
1119 		.route_offset = 0x314,
1120 		.route_val = BIT(16 + 2) | BIT(16 + 3) | BIT(2),
1121 	}, {
1122 		/* i2c3_sdam0 */
1123 		.bank_num = 0,
1124 		.pin = 15,
1125 		.func = 2,
1126 		.route_offset = 0x608,
1127 		.route_val = BIT(16 + 8) | BIT(16 + 9),
1128 	}, {
1129 		/* i2c3_sdam1 */
1130 		.bank_num = 3,
1131 		.pin = 12,
1132 		.func = 2,
1133 		.route_offset = 0x608,
1134 		.route_val = BIT(16 + 8) | BIT(16 + 9) | BIT(8),
1135 	}, {
1136 		/* i2c3_sdam2 */
1137 		.bank_num = 2,
1138 		.pin = 0,
1139 		.func = 3,
1140 		.route_offset = 0x608,
1141 		.route_val = BIT(16 + 8) | BIT(16 + 9) | BIT(9),
1142 	}, {
1143 		/* i2s-8ch-1-sclktxm0 */
1144 		.bank_num = 1,
1145 		.pin = 3,
1146 		.func = 2,
1147 		.route_offset = 0x308,
1148 		.route_val = BIT(16 + 3),
1149 	}, {
1150 		/* i2s-8ch-1-sclkrxm0 */
1151 		.bank_num = 1,
1152 		.pin = 4,
1153 		.func = 2,
1154 		.route_offset = 0x308,
1155 		.route_val = BIT(16 + 3),
1156 	}, {
1157 		/* i2s-8ch-1-sclktxm1 */
1158 		.bank_num = 1,
1159 		.pin = 13,
1160 		.func = 2,
1161 		.route_offset = 0x308,
1162 		.route_val = BIT(16 + 3) | BIT(3),
1163 	}, {
1164 		/* i2s-8ch-1-sclkrxm1 */
1165 		.bank_num = 1,
1166 		.pin = 14,
1167 		.func = 2,
1168 		.route_offset = 0x308,
1169 		.route_val = BIT(16 + 3) | BIT(3),
1170 	}, {
1171 		/* pdm-clkm0 */
1172 		.bank_num = 1,
1173 		.pin = 4,
1174 		.func = 3,
1175 		.route_offset = 0x308,
1176 		.route_val =  BIT(16 + 12) | BIT(16 + 13),
1177 	}, {
1178 		/* pdm-clkm1 */
1179 		.bank_num = 1,
1180 		.pin = 14,
1181 		.func = 4,
1182 		.route_offset = 0x308,
1183 		.route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(12),
1184 	}, {
1185 		/* pdm-clkm2 */
1186 		.bank_num = 2,
1187 		.pin = 6,
1188 		.func = 2,
1189 		.route_offset = 0x308,
1190 		.route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(13),
1191 	}, {
1192 		/* pdm-clkm-m2 */
1193 		.bank_num = 2,
1194 		.pin = 4,
1195 		.func = 3,
1196 		.route_offset = 0x600,
1197 		.route_val = BIT(16 + 2) | BIT(2),
1198 	}, {
1199 		/* spi1_miso */
1200 		.bank_num = 3,
1201 		.pin = 10,
1202 		.func = 3,
1203 		.route_offset = 0x314,
1204 		.route_val = BIT(16 + 9),
1205 	}, {
1206 		/* spi1_miso_m1 */
1207 		.bank_num = 2,
1208 		.pin = 4,
1209 		.func = 2,
1210 		.route_offset = 0x314,
1211 		.route_val = BIT(16 + 9) | BIT(9),
1212 	}, {
1213 		/* owire_m0 */
1214 		.bank_num = 0,
1215 		.pin = 11,
1216 		.func = 3,
1217 		.route_offset = 0x314,
1218 		.route_val = BIT(16 + 10) | BIT(16 + 11),
1219 	}, {
1220 		/* owire_m1 */
1221 		.bank_num = 1,
1222 		.pin = 22,
1223 		.func = 7,
1224 		.route_offset = 0x314,
1225 		.route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(10),
1226 	}, {
1227 		/* owire_m2 */
1228 		.bank_num = 2,
1229 		.pin = 2,
1230 		.func = 5,
1231 		.route_offset = 0x314,
1232 		.route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(11),
1233 	}, {
1234 		/* can_rxd_m0 */
1235 		.bank_num = 0,
1236 		.pin = 11,
1237 		.func = 2,
1238 		.route_offset = 0x314,
1239 		.route_val = BIT(16 + 12) | BIT(16 + 13),
1240 	}, {
1241 		/* can_rxd_m1 */
1242 		.bank_num = 1,
1243 		.pin = 22,
1244 		.func = 5,
1245 		.route_offset = 0x314,
1246 		.route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(12),
1247 	}, {
1248 		/* can_rxd_m2 */
1249 		.bank_num = 2,
1250 		.pin = 2,
1251 		.func = 4,
1252 		.route_offset = 0x314,
1253 		.route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(13),
1254 	}, {
1255 		/* mac_rxd0_m0 */
1256 		.bank_num = 1,
1257 		.pin = 20,
1258 		.func = 3,
1259 		.route_offset = 0x314,
1260 		.route_val = BIT(16 + 14),
1261 	}, {
1262 		/* mac_rxd0_m1 */
1263 		.bank_num = 4,
1264 		.pin = 2,
1265 		.func = 2,
1266 		.route_offset = 0x314,
1267 		.route_val = BIT(16 + 14) | BIT(14),
1268 	}, {
1269 		/* uart3_rx */
1270 		.bank_num = 3,
1271 		.pin = 12,
1272 		.func = 4,
1273 		.route_offset = 0x314,
1274 		.route_val = BIT(16 + 15),
1275 	}, {
1276 		/* uart3_rx_m1 */
1277 		.bank_num = 0,
1278 		.pin = 17,
1279 		.func = 3,
1280 		.route_offset = 0x314,
1281 		.route_val = BIT(16 + 15) | BIT(15),
1282 	},
1283 };
1284 
1285 static struct rockchip_mux_route_data rk3328_mux_route_data[] = {
1286 	{
1287 		/* uart2dbg_rxm0 */
1288 		.bank_num = 1,
1289 		.pin = 1,
1290 		.func = 2,
1291 		.route_offset = 0x50,
1292 		.route_val = BIT(16) | BIT(16 + 1),
1293 	}, {
1294 		/* uart2dbg_rxm1 */
1295 		.bank_num = 2,
1296 		.pin = 1,
1297 		.func = 1,
1298 		.route_offset = 0x50,
1299 		.route_val = BIT(16) | BIT(16 + 1) | BIT(0),
1300 	}, {
1301 		/* gmac-m1_rxd0 */
1302 		.bank_num = 1,
1303 		.pin = 11,
1304 		.func = 2,
1305 		.route_offset = 0x50,
1306 		.route_val = BIT(16 + 2) | BIT(2),
1307 	}, {
1308 		/* gmac-m1-optimized_rxd3 */
1309 		.bank_num = 1,
1310 		.pin = 14,
1311 		.func = 2,
1312 		.route_offset = 0x50,
1313 		.route_val = BIT(16 + 10) | BIT(10),
1314 	}, {
1315 		/* pdm_sdi0m0 */
1316 		.bank_num = 2,
1317 		.pin = 19,
1318 		.func = 2,
1319 		.route_offset = 0x50,
1320 		.route_val = BIT(16 + 3),
1321 	}, {
1322 		/* pdm_sdi0m1 */
1323 		.bank_num = 1,
1324 		.pin = 23,
1325 		.func = 3,
1326 		.route_offset = 0x50,
1327 		.route_val =  BIT(16 + 3) | BIT(3),
1328 	}, {
1329 		/* spi_rxdm2 */
1330 		.bank_num = 3,
1331 		.pin = 2,
1332 		.func = 4,
1333 		.route_offset = 0x50,
1334 		.route_val =  BIT(16 + 4) | BIT(16 + 5) | BIT(5),
1335 	}, {
1336 		/* i2s2_sdim0 */
1337 		.bank_num = 1,
1338 		.pin = 24,
1339 		.func = 1,
1340 		.route_offset = 0x50,
1341 		.route_val = BIT(16 + 6),
1342 	}, {
1343 		/* i2s2_sdim1 */
1344 		.bank_num = 3,
1345 		.pin = 2,
1346 		.func = 6,
1347 		.route_offset = 0x50,
1348 		.route_val =  BIT(16 + 6) | BIT(6),
1349 	}, {
1350 		/* card_iom1 */
1351 		.bank_num = 2,
1352 		.pin = 22,
1353 		.func = 3,
1354 		.route_offset = 0x50,
1355 		.route_val =  BIT(16 + 7) | BIT(7),
1356 	}, {
1357 		/* tsp_d5m1 */
1358 		.bank_num = 2,
1359 		.pin = 16,
1360 		.func = 3,
1361 		.route_offset = 0x50,
1362 		.route_val =  BIT(16 + 8) | BIT(8),
1363 	}, {
1364 		/* cif_data5m1 */
1365 		.bank_num = 2,
1366 		.pin = 16,
1367 		.func = 4,
1368 		.route_offset = 0x50,
1369 		.route_val =  BIT(16 + 9) | BIT(9),
1370 	},
1371 };
1372 
1373 static struct rockchip_mux_route_data rk3399_mux_route_data[] = {
1374 	{
1375 		/* uart2dbga_rx */
1376 		.bank_num = 4,
1377 		.pin = 8,
1378 		.func = 2,
1379 		.route_offset = 0xe21c,
1380 		.route_val = BIT(16 + 10) | BIT(16 + 11),
1381 	}, {
1382 		/* uart2dbgb_rx */
1383 		.bank_num = 4,
1384 		.pin = 16,
1385 		.func = 2,
1386 		.route_offset = 0xe21c,
1387 		.route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(10),
1388 	}, {
1389 		/* uart2dbgc_rx */
1390 		.bank_num = 4,
1391 		.pin = 19,
1392 		.func = 1,
1393 		.route_offset = 0xe21c,
1394 		.route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(11),
1395 	}, {
1396 		/* pcie_clkreqn */
1397 		.bank_num = 2,
1398 		.pin = 26,
1399 		.func = 2,
1400 		.route_offset = 0xe21c,
1401 		.route_val = BIT(16 + 14),
1402 	}, {
1403 		/* pcie_clkreqnb */
1404 		.bank_num = 4,
1405 		.pin = 24,
1406 		.func = 1,
1407 		.route_offset = 0xe21c,
1408 		.route_val = BIT(16 + 14) | BIT(14),
1409 	},
1410 };
1411 
rockchip_get_mux_route(struct rockchip_pin_bank * bank,int pin,int mux,u32 * loc,u32 * reg,u32 * value)1412 static bool rockchip_get_mux_route(struct rockchip_pin_bank *bank, int pin,
1413 				   int mux, u32 *loc, u32 *reg, u32 *value)
1414 {
1415 	struct rockchip_pinctrl *info = bank->drvdata;
1416 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
1417 	struct rockchip_mux_route_data *data;
1418 	int i;
1419 
1420 	for (i = 0; i < ctrl->niomux_routes; i++) {
1421 		data = &ctrl->iomux_routes[i];
1422 		if ((data->bank_num == bank->bank_num) &&
1423 		    (data->pin == pin) && (data->func == mux))
1424 			break;
1425 	}
1426 
1427 	if (i >= ctrl->niomux_routes)
1428 		return false;
1429 
1430 	*loc = data->route_location;
1431 	*reg = data->route_offset;
1432 	*value = data->route_val;
1433 
1434 	return true;
1435 }
1436 
rockchip_get_mux(struct rockchip_pin_bank * bank,int pin)1437 static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
1438 {
1439 	struct rockchip_pinctrl *info = bank->drvdata;
1440 	int iomux_num = (pin / 8);
1441 	struct regmap *regmap;
1442 	unsigned int val;
1443 	int reg, ret, mask, mux_type;
1444 	u8 bit;
1445 
1446 	if (iomux_num > 3)
1447 		return -EINVAL;
1448 
1449 	if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
1450 		dev_err(info->dev, "pin %d is unrouted\n", pin);
1451 		return -EINVAL;
1452 	}
1453 
1454 	if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY)
1455 		return RK_FUNC_GPIO;
1456 
1457 	regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
1458 				? info->regmap_pmu : info->regmap_base;
1459 
1460 	/* get basic quadrupel of mux registers and the correct reg inside */
1461 	mux_type = bank->iomux[iomux_num].type;
1462 	reg = bank->iomux[iomux_num].offset;
1463 	if (mux_type & IOMUX_WIDTH_4BIT) {
1464 		if ((pin % 8) >= 4)
1465 			reg += 0x4;
1466 		bit = (pin % 4) * 4;
1467 		mask = 0xf;
1468 	} else if (mux_type & IOMUX_WIDTH_3BIT) {
1469 		if ((pin % 8) >= 5)
1470 			reg += 0x4;
1471 		bit = (pin % 8 % 5) * 3;
1472 		mask = 0x7;
1473 	} else {
1474 		bit = (pin % 8) * 2;
1475 		mask = 0x3;
1476 	}
1477 
1478 	if (bank->recalced_mask & BIT(pin))
1479 		rockchip_get_recalced_mux(bank, pin, &reg, &bit, &mask);
1480 
1481 	ret = regmap_read(regmap, reg, &val);
1482 	if (ret)
1483 		return ret;
1484 
1485 	return ((val >> bit) & mask);
1486 }
1487 
rockchip_verify_mux(struct rockchip_pin_bank * bank,int pin,int mux)1488 static int rockchip_verify_mux(struct rockchip_pin_bank *bank,
1489 			       int pin, int mux)
1490 {
1491 	struct rockchip_pinctrl *info = bank->drvdata;
1492 	int iomux_num = (pin / 8);
1493 
1494 	if (iomux_num > 3)
1495 		return -EINVAL;
1496 
1497 	if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
1498 		dev_err(info->dev, "pin %d is unrouted\n", pin);
1499 		return -EINVAL;
1500 	}
1501 
1502 	if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY) {
1503 		if (mux != RK_FUNC_GPIO) {
1504 			dev_err(info->dev,
1505 				"pin %d only supports a gpio mux\n", pin);
1506 			return -ENOTSUPP;
1507 		}
1508 	}
1509 
1510 	return 0;
1511 }
1512 
1513 /*
1514  * Set a new mux function for a pin.
1515  *
1516  * The register is divided into the upper and lower 16 bit. When changing
1517  * a value, the previous register value is not read and changed. Instead
1518  * it seems the changed bits are marked in the upper 16 bit, while the
1519  * changed value gets set in the same offset in the lower 16 bit.
1520  * All pin settings seem to be 2 bit wide in both the upper and lower
1521  * parts.
1522  * @bank: pin bank to change
1523  * @pin: pin to change
1524  * @mux: new mux function to set
1525  */
rockchip_set_mux(struct rockchip_pin_bank * bank,int pin,int mux)1526 static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
1527 {
1528 	struct rockchip_pinctrl *info = bank->drvdata;
1529 	int iomux_num = (pin / 8);
1530 	struct regmap *regmap;
1531 	int reg, ret, mask, mux_type;
1532 	u8 bit;
1533 	u32 data, rmask, route_location, route_reg, route_val;
1534 
1535 	ret = rockchip_verify_mux(bank, pin, mux);
1536 	if (ret < 0)
1537 		return ret;
1538 
1539 	if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY)
1540 		return 0;
1541 
1542 	dev_dbg(info->dev, "setting mux of GPIO%d-%d to %d\n",
1543 						bank->bank_num, pin, mux);
1544 
1545 	regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
1546 				? info->regmap_pmu : info->regmap_base;
1547 
1548 	/* get basic quadrupel of mux registers and the correct reg inside */
1549 	mux_type = bank->iomux[iomux_num].type;
1550 	reg = bank->iomux[iomux_num].offset;
1551 	if (mux_type & IOMUX_WIDTH_4BIT) {
1552 		if ((pin % 8) >= 4)
1553 			reg += 0x4;
1554 		bit = (pin % 4) * 4;
1555 		mask = 0xf;
1556 	} else if (mux_type & IOMUX_WIDTH_3BIT) {
1557 		if ((pin % 8) >= 5)
1558 			reg += 0x4;
1559 		bit = (pin % 8 % 5) * 3;
1560 		mask = 0x7;
1561 	} else {
1562 		bit = (pin % 8) * 2;
1563 		mask = 0x3;
1564 	}
1565 
1566 	if (bank->recalced_mask & BIT(pin))
1567 		rockchip_get_recalced_mux(bank, pin, &reg, &bit, &mask);
1568 
1569 	if (bank->route_mask & BIT(pin)) {
1570 		if (rockchip_get_mux_route(bank, pin, mux, &route_location,
1571 					   &route_reg, &route_val)) {
1572 			struct regmap *route_regmap = regmap;
1573 
1574 			/* handle special locations */
1575 			switch (route_location) {
1576 			case ROCKCHIP_ROUTE_PMU:
1577 				route_regmap = info->regmap_pmu;
1578 				break;
1579 			case ROCKCHIP_ROUTE_GRF:
1580 				route_regmap = info->regmap_base;
1581 				break;
1582 			}
1583 
1584 			ret = regmap_write(route_regmap, route_reg, route_val);
1585 			if (ret)
1586 				return ret;
1587 		}
1588 	}
1589 
1590 	data = (mask << (bit + 16));
1591 	rmask = data | (data >> 16);
1592 	data |= (mux & mask) << bit;
1593 	ret = regmap_update_bits(regmap, reg, rmask, data);
1594 
1595 	return ret;
1596 }
1597 
1598 #define PX30_PULL_PMU_OFFSET		0x10
1599 #define PX30_PULL_GRF_OFFSET		0x60
1600 #define PX30_PULL_BITS_PER_PIN		2
1601 #define PX30_PULL_PINS_PER_REG		8
1602 #define PX30_PULL_BANK_STRIDE		16
1603 
px30_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1604 static void px30_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1605 				       int pin_num, struct regmap **regmap,
1606 				       int *reg, u8 *bit)
1607 {
1608 	struct rockchip_pinctrl *info = bank->drvdata;
1609 
1610 	/* The first 32 pins of the first bank are located in PMU */
1611 	if (bank->bank_num == 0) {
1612 		*regmap = info->regmap_pmu;
1613 		*reg = PX30_PULL_PMU_OFFSET;
1614 	} else {
1615 		*regmap = info->regmap_base;
1616 		*reg = PX30_PULL_GRF_OFFSET;
1617 
1618 		/* correct the offset, as we're starting with the 2nd bank */
1619 		*reg -= 0x10;
1620 		*reg += bank->bank_num * PX30_PULL_BANK_STRIDE;
1621 	}
1622 
1623 	*reg += ((pin_num / PX30_PULL_PINS_PER_REG) * 4);
1624 	*bit = (pin_num % PX30_PULL_PINS_PER_REG);
1625 	*bit *= PX30_PULL_BITS_PER_PIN;
1626 }
1627 
1628 #define PX30_DRV_PMU_OFFSET		0x20
1629 #define PX30_DRV_GRF_OFFSET		0xf0
1630 #define PX30_DRV_BITS_PER_PIN		2
1631 #define PX30_DRV_PINS_PER_REG		8
1632 #define PX30_DRV_BANK_STRIDE		16
1633 
px30_calc_drv_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1634 static void px30_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
1635 				      int pin_num, struct regmap **regmap,
1636 				      int *reg, u8 *bit)
1637 {
1638 	struct rockchip_pinctrl *info = bank->drvdata;
1639 
1640 	/* The first 32 pins of the first bank are located in PMU */
1641 	if (bank->bank_num == 0) {
1642 		*regmap = info->regmap_pmu;
1643 		*reg = PX30_DRV_PMU_OFFSET;
1644 	} else {
1645 		*regmap = info->regmap_base;
1646 		*reg = PX30_DRV_GRF_OFFSET;
1647 
1648 		/* correct the offset, as we're starting with the 2nd bank */
1649 		*reg -= 0x10;
1650 		*reg += bank->bank_num * PX30_DRV_BANK_STRIDE;
1651 	}
1652 
1653 	*reg += ((pin_num / PX30_DRV_PINS_PER_REG) * 4);
1654 	*bit = (pin_num % PX30_DRV_PINS_PER_REG);
1655 	*bit *= PX30_DRV_BITS_PER_PIN;
1656 }
1657 
1658 #define PX30_SCHMITT_PMU_OFFSET			0x38
1659 #define PX30_SCHMITT_GRF_OFFSET			0xc0
1660 #define PX30_SCHMITT_PINS_PER_PMU_REG		16
1661 #define PX30_SCHMITT_BANK_STRIDE		16
1662 #define PX30_SCHMITT_PINS_PER_GRF_REG		8
1663 
px30_calc_schmitt_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1664 static int px30_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
1665 					 int pin_num,
1666 					 struct regmap **regmap,
1667 					 int *reg, u8 *bit)
1668 {
1669 	struct rockchip_pinctrl *info = bank->drvdata;
1670 	int pins_per_reg;
1671 
1672 	if (bank->bank_num == 0) {
1673 		*regmap = info->regmap_pmu;
1674 		*reg = PX30_SCHMITT_PMU_OFFSET;
1675 		pins_per_reg = PX30_SCHMITT_PINS_PER_PMU_REG;
1676 	} else {
1677 		*regmap = info->regmap_base;
1678 		*reg = PX30_SCHMITT_GRF_OFFSET;
1679 		pins_per_reg = PX30_SCHMITT_PINS_PER_GRF_REG;
1680 		*reg += (bank->bank_num  - 1) * PX30_SCHMITT_BANK_STRIDE;
1681 	}
1682 
1683 	*reg += ((pin_num / pins_per_reg) * 4);
1684 	*bit = pin_num % pins_per_reg;
1685 
1686 	return 0;
1687 }
1688 
1689 #define RV1108_PULL_PMU_OFFSET		0x10
1690 #define RV1108_PULL_OFFSET		0x110
1691 #define RV1108_PULL_PINS_PER_REG	8
1692 #define RV1108_PULL_BITS_PER_PIN	2
1693 #define RV1108_PULL_BANK_STRIDE		16
1694 
rv1108_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1695 static void rv1108_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1696 					 int pin_num, struct regmap **regmap,
1697 					 int *reg, u8 *bit)
1698 {
1699 	struct rockchip_pinctrl *info = bank->drvdata;
1700 
1701 	/* The first 24 pins of the first bank are located in PMU */
1702 	if (bank->bank_num == 0) {
1703 		*regmap = info->regmap_pmu;
1704 		*reg = RV1108_PULL_PMU_OFFSET;
1705 	} else {
1706 		*reg = RV1108_PULL_OFFSET;
1707 		*regmap = info->regmap_base;
1708 		/* correct the offset, as we're starting with the 2nd bank */
1709 		*reg -= 0x10;
1710 		*reg += bank->bank_num * RV1108_PULL_BANK_STRIDE;
1711 	}
1712 
1713 	*reg += ((pin_num / RV1108_PULL_PINS_PER_REG) * 4);
1714 	*bit = (pin_num % RV1108_PULL_PINS_PER_REG);
1715 	*bit *= RV1108_PULL_BITS_PER_PIN;
1716 }
1717 
1718 #define RV1108_DRV_PMU_OFFSET		0x20
1719 #define RV1108_DRV_GRF_OFFSET		0x210
1720 #define RV1108_DRV_BITS_PER_PIN		2
1721 #define RV1108_DRV_PINS_PER_REG		8
1722 #define RV1108_DRV_BANK_STRIDE		16
1723 
rv1108_calc_drv_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1724 static void rv1108_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
1725 					int pin_num, struct regmap **regmap,
1726 					int *reg, u8 *bit)
1727 {
1728 	struct rockchip_pinctrl *info = bank->drvdata;
1729 
1730 	/* The first 24 pins of the first bank are located in PMU */
1731 	if (bank->bank_num == 0) {
1732 		*regmap = info->regmap_pmu;
1733 		*reg = RV1108_DRV_PMU_OFFSET;
1734 	} else {
1735 		*regmap = info->regmap_base;
1736 		*reg = RV1108_DRV_GRF_OFFSET;
1737 
1738 		/* correct the offset, as we're starting with the 2nd bank */
1739 		*reg -= 0x10;
1740 		*reg += bank->bank_num * RV1108_DRV_BANK_STRIDE;
1741 	}
1742 
1743 	*reg += ((pin_num / RV1108_DRV_PINS_PER_REG) * 4);
1744 	*bit = pin_num % RV1108_DRV_PINS_PER_REG;
1745 	*bit *= RV1108_DRV_BITS_PER_PIN;
1746 }
1747 
1748 #define RV1108_SCHMITT_PMU_OFFSET		0x30
1749 #define RV1108_SCHMITT_GRF_OFFSET		0x388
1750 #define RV1108_SCHMITT_BANK_STRIDE		8
1751 #define RV1108_SCHMITT_PINS_PER_GRF_REG		16
1752 #define RV1108_SCHMITT_PINS_PER_PMU_REG		8
1753 
rv1108_calc_schmitt_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1754 static int rv1108_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
1755 					   int pin_num,
1756 					   struct regmap **regmap,
1757 					   int *reg, u8 *bit)
1758 {
1759 	struct rockchip_pinctrl *info = bank->drvdata;
1760 	int pins_per_reg;
1761 
1762 	if (bank->bank_num == 0) {
1763 		*regmap = info->regmap_pmu;
1764 		*reg = RV1108_SCHMITT_PMU_OFFSET;
1765 		pins_per_reg = RV1108_SCHMITT_PINS_PER_PMU_REG;
1766 	} else {
1767 		*regmap = info->regmap_base;
1768 		*reg = RV1108_SCHMITT_GRF_OFFSET;
1769 		pins_per_reg = RV1108_SCHMITT_PINS_PER_GRF_REG;
1770 		*reg += (bank->bank_num  - 1) * RV1108_SCHMITT_BANK_STRIDE;
1771 	}
1772 	*reg += ((pin_num / pins_per_reg) * 4);
1773 	*bit = pin_num % pins_per_reg;
1774 
1775 	return 0;
1776 }
1777 
1778 #define RK3308_SCHMITT_PINS_PER_REG		8
1779 #define RK3308_SCHMITT_BANK_STRIDE		16
1780 #define RK3308_SCHMITT_GRF_OFFSET		0x1a0
1781 
rk3308_calc_schmitt_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1782 static int rk3308_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
1783 				    int pin_num, struct regmap **regmap,
1784 				    int *reg, u8 *bit)
1785 {
1786 	struct rockchip_pinctrl *info = bank->drvdata;
1787 
1788 	*regmap = info->regmap_base;
1789 	*reg = RK3308_SCHMITT_GRF_OFFSET;
1790 
1791 	*reg += bank->bank_num * RK3308_SCHMITT_BANK_STRIDE;
1792 	*reg += ((pin_num / RK3308_SCHMITT_PINS_PER_REG) * 4);
1793 	*bit = pin_num % RK3308_SCHMITT_PINS_PER_REG;
1794 
1795 	return 0;
1796 }
1797 
1798 #define RK2928_PULL_OFFSET		0x118
1799 #define RK2928_PULL_PINS_PER_REG	16
1800 #define RK2928_PULL_BANK_STRIDE		8
1801 
rk2928_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1802 static void rk2928_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1803 				    int pin_num, struct regmap **regmap,
1804 				    int *reg, u8 *bit)
1805 {
1806 	struct rockchip_pinctrl *info = bank->drvdata;
1807 
1808 	*regmap = info->regmap_base;
1809 	*reg = RK2928_PULL_OFFSET;
1810 	*reg += bank->bank_num * RK2928_PULL_BANK_STRIDE;
1811 	*reg += (pin_num / RK2928_PULL_PINS_PER_REG) * 4;
1812 
1813 	*bit = pin_num % RK2928_PULL_PINS_PER_REG;
1814 };
1815 
1816 #define RK3128_PULL_OFFSET	0x118
1817 
rk3128_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1818 static void rk3128_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1819 					 int pin_num, struct regmap **regmap,
1820 					 int *reg, u8 *bit)
1821 {
1822 	struct rockchip_pinctrl *info = bank->drvdata;
1823 
1824 	*regmap = info->regmap_base;
1825 	*reg = RK3128_PULL_OFFSET;
1826 	*reg += bank->bank_num * RK2928_PULL_BANK_STRIDE;
1827 	*reg += ((pin_num / RK2928_PULL_PINS_PER_REG) * 4);
1828 
1829 	*bit = pin_num % RK2928_PULL_PINS_PER_REG;
1830 }
1831 
1832 #define RK3188_PULL_OFFSET		0x164
1833 #define RK3188_PULL_BITS_PER_PIN	2
1834 #define RK3188_PULL_PINS_PER_REG	8
1835 #define RK3188_PULL_BANK_STRIDE		16
1836 #define RK3188_PULL_PMU_OFFSET		0x64
1837 
rk3188_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1838 static void rk3188_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1839 				    int pin_num, struct regmap **regmap,
1840 				    int *reg, u8 *bit)
1841 {
1842 	struct rockchip_pinctrl *info = bank->drvdata;
1843 
1844 	/* The first 12 pins of the first bank are located elsewhere */
1845 	if (bank->bank_num == 0 && pin_num < 12) {
1846 		*regmap = info->regmap_pmu ? info->regmap_pmu
1847 					   : bank->regmap_pull;
1848 		*reg = info->regmap_pmu ? RK3188_PULL_PMU_OFFSET : 0;
1849 		*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1850 		*bit = pin_num % RK3188_PULL_PINS_PER_REG;
1851 		*bit *= RK3188_PULL_BITS_PER_PIN;
1852 	} else {
1853 		*regmap = info->regmap_pull ? info->regmap_pull
1854 					    : info->regmap_base;
1855 		*reg = info->regmap_pull ? 0 : RK3188_PULL_OFFSET;
1856 
1857 		/* correct the offset, as it is the 2nd pull register */
1858 		*reg -= 4;
1859 		*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
1860 		*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1861 
1862 		/*
1863 		 * The bits in these registers have an inverse ordering
1864 		 * with the lowest pin being in bits 15:14 and the highest
1865 		 * pin in bits 1:0
1866 		 */
1867 		*bit = 7 - (pin_num % RK3188_PULL_PINS_PER_REG);
1868 		*bit *= RK3188_PULL_BITS_PER_PIN;
1869 	}
1870 }
1871 
1872 #define RK3288_PULL_OFFSET		0x140
rk3288_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1873 static void rk3288_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1874 				    int pin_num, struct regmap **regmap,
1875 				    int *reg, u8 *bit)
1876 {
1877 	struct rockchip_pinctrl *info = bank->drvdata;
1878 
1879 	/* The first 24 pins of the first bank are located in PMU */
1880 	if (bank->bank_num == 0) {
1881 		*regmap = info->regmap_pmu;
1882 		*reg = RK3188_PULL_PMU_OFFSET;
1883 
1884 		*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1885 		*bit = pin_num % RK3188_PULL_PINS_PER_REG;
1886 		*bit *= RK3188_PULL_BITS_PER_PIN;
1887 	} else {
1888 		*regmap = info->regmap_base;
1889 		*reg = RK3288_PULL_OFFSET;
1890 
1891 		/* correct the offset, as we're starting with the 2nd bank */
1892 		*reg -= 0x10;
1893 		*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
1894 		*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1895 
1896 		*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
1897 		*bit *= RK3188_PULL_BITS_PER_PIN;
1898 	}
1899 }
1900 
1901 #define RK3288_DRV_PMU_OFFSET		0x70
1902 #define RK3288_DRV_GRF_OFFSET		0x1c0
1903 #define RK3288_DRV_BITS_PER_PIN		2
1904 #define RK3288_DRV_PINS_PER_REG		8
1905 #define RK3288_DRV_BANK_STRIDE		16
1906 
rk3288_calc_drv_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1907 static void rk3288_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
1908 				    int pin_num, struct regmap **regmap,
1909 				    int *reg, u8 *bit)
1910 {
1911 	struct rockchip_pinctrl *info = bank->drvdata;
1912 
1913 	/* The first 24 pins of the first bank are located in PMU */
1914 	if (bank->bank_num == 0) {
1915 		*regmap = info->regmap_pmu;
1916 		*reg = RK3288_DRV_PMU_OFFSET;
1917 
1918 		*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
1919 		*bit = pin_num % RK3288_DRV_PINS_PER_REG;
1920 		*bit *= RK3288_DRV_BITS_PER_PIN;
1921 	} else {
1922 		*regmap = info->regmap_base;
1923 		*reg = RK3288_DRV_GRF_OFFSET;
1924 
1925 		/* correct the offset, as we're starting with the 2nd bank */
1926 		*reg -= 0x10;
1927 		*reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
1928 		*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
1929 
1930 		*bit = (pin_num % RK3288_DRV_PINS_PER_REG);
1931 		*bit *= RK3288_DRV_BITS_PER_PIN;
1932 	}
1933 }
1934 
1935 #define RK3228_PULL_OFFSET		0x100
1936 
rk3228_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1937 static void rk3228_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1938 				    int pin_num, struct regmap **regmap,
1939 				    int *reg, u8 *bit)
1940 {
1941 	struct rockchip_pinctrl *info = bank->drvdata;
1942 
1943 	*regmap = info->regmap_base;
1944 	*reg = RK3228_PULL_OFFSET;
1945 	*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
1946 	*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1947 
1948 	*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
1949 	*bit *= RK3188_PULL_BITS_PER_PIN;
1950 }
1951 
1952 #define RK3228_DRV_GRF_OFFSET		0x200
1953 
rk3228_calc_drv_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1954 static void rk3228_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
1955 				    int pin_num, struct regmap **regmap,
1956 				    int *reg, u8 *bit)
1957 {
1958 	struct rockchip_pinctrl *info = bank->drvdata;
1959 
1960 	*regmap = info->regmap_base;
1961 	*reg = RK3228_DRV_GRF_OFFSET;
1962 	*reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
1963 	*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
1964 
1965 	*bit = (pin_num % RK3288_DRV_PINS_PER_REG);
1966 	*bit *= RK3288_DRV_BITS_PER_PIN;
1967 }
1968 
1969 #define RK3308_PULL_OFFSET		0xa0
1970 
rk3308_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1971 static void rk3308_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1972 				    int pin_num, struct regmap **regmap,
1973 				    int *reg, u8 *bit)
1974 {
1975 	struct rockchip_pinctrl *info = bank->drvdata;
1976 
1977 	*regmap = info->regmap_base;
1978 	*reg = RK3308_PULL_OFFSET;
1979 	*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
1980 	*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1981 
1982 	*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
1983 	*bit *= RK3188_PULL_BITS_PER_PIN;
1984 }
1985 
1986 #define RK3308_DRV_GRF_OFFSET		0x100
1987 
rk3308_calc_drv_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)1988 static void rk3308_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
1989 				    int pin_num, struct regmap **regmap,
1990 				    int *reg, u8 *bit)
1991 {
1992 	struct rockchip_pinctrl *info = bank->drvdata;
1993 
1994 	*regmap = info->regmap_base;
1995 	*reg = RK3308_DRV_GRF_OFFSET;
1996 	*reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
1997 	*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
1998 
1999 	*bit = (pin_num % RK3288_DRV_PINS_PER_REG);
2000 	*bit *= RK3288_DRV_BITS_PER_PIN;
2001 }
2002 
2003 #define RK3368_PULL_GRF_OFFSET		0x100
2004 #define RK3368_PULL_PMU_OFFSET		0x10
2005 
rk3368_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)2006 static void rk3368_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
2007 				    int pin_num, struct regmap **regmap,
2008 				    int *reg, u8 *bit)
2009 {
2010 	struct rockchip_pinctrl *info = bank->drvdata;
2011 
2012 	/* The first 32 pins of the first bank are located in PMU */
2013 	if (bank->bank_num == 0) {
2014 		*regmap = info->regmap_pmu;
2015 		*reg = RK3368_PULL_PMU_OFFSET;
2016 
2017 		*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
2018 		*bit = pin_num % RK3188_PULL_PINS_PER_REG;
2019 		*bit *= RK3188_PULL_BITS_PER_PIN;
2020 	} else {
2021 		*regmap = info->regmap_base;
2022 		*reg = RK3368_PULL_GRF_OFFSET;
2023 
2024 		/* correct the offset, as we're starting with the 2nd bank */
2025 		*reg -= 0x10;
2026 		*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
2027 		*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
2028 
2029 		*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
2030 		*bit *= RK3188_PULL_BITS_PER_PIN;
2031 	}
2032 }
2033 
2034 #define RK3368_DRV_PMU_OFFSET		0x20
2035 #define RK3368_DRV_GRF_OFFSET		0x200
2036 
rk3368_calc_drv_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)2037 static void rk3368_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
2038 				    int pin_num, struct regmap **regmap,
2039 				    int *reg, u8 *bit)
2040 {
2041 	struct rockchip_pinctrl *info = bank->drvdata;
2042 
2043 	/* The first 32 pins of the first bank are located in PMU */
2044 	if (bank->bank_num == 0) {
2045 		*regmap = info->regmap_pmu;
2046 		*reg = RK3368_DRV_PMU_OFFSET;
2047 
2048 		*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
2049 		*bit = pin_num % RK3288_DRV_PINS_PER_REG;
2050 		*bit *= RK3288_DRV_BITS_PER_PIN;
2051 	} else {
2052 		*regmap = info->regmap_base;
2053 		*reg = RK3368_DRV_GRF_OFFSET;
2054 
2055 		/* correct the offset, as we're starting with the 2nd bank */
2056 		*reg -= 0x10;
2057 		*reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
2058 		*reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
2059 
2060 		*bit = (pin_num % RK3288_DRV_PINS_PER_REG);
2061 		*bit *= RK3288_DRV_BITS_PER_PIN;
2062 	}
2063 }
2064 
2065 #define RK3399_PULL_GRF_OFFSET		0xe040
2066 #define RK3399_PULL_PMU_OFFSET		0x40
2067 #define RK3399_DRV_3BITS_PER_PIN	3
2068 
rk3399_calc_pull_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)2069 static void rk3399_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
2070 					 int pin_num, struct regmap **regmap,
2071 					 int *reg, u8 *bit)
2072 {
2073 	struct rockchip_pinctrl *info = bank->drvdata;
2074 
2075 	/* The bank0:16 and bank1:32 pins are located in PMU */
2076 	if ((bank->bank_num == 0) || (bank->bank_num == 1)) {
2077 		*regmap = info->regmap_pmu;
2078 		*reg = RK3399_PULL_PMU_OFFSET;
2079 
2080 		*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
2081 
2082 		*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
2083 		*bit = pin_num % RK3188_PULL_PINS_PER_REG;
2084 		*bit *= RK3188_PULL_BITS_PER_PIN;
2085 	} else {
2086 		*regmap = info->regmap_base;
2087 		*reg = RK3399_PULL_GRF_OFFSET;
2088 
2089 		/* correct the offset, as we're starting with the 3rd bank */
2090 		*reg -= 0x20;
2091 		*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
2092 		*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
2093 
2094 		*bit = (pin_num % RK3188_PULL_PINS_PER_REG);
2095 		*bit *= RK3188_PULL_BITS_PER_PIN;
2096 	}
2097 }
2098 
rk3399_calc_drv_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)2099 static void rk3399_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
2100 					int pin_num, struct regmap **regmap,
2101 					int *reg, u8 *bit)
2102 {
2103 	struct rockchip_pinctrl *info = bank->drvdata;
2104 	int drv_num = (pin_num / 8);
2105 
2106 	/*  The bank0:16 and bank1:32 pins are located in PMU */
2107 	if ((bank->bank_num == 0) || (bank->bank_num == 1))
2108 		*regmap = info->regmap_pmu;
2109 	else
2110 		*regmap = info->regmap_base;
2111 
2112 	*reg = bank->drv[drv_num].offset;
2113 	if ((bank->drv[drv_num].drv_type == DRV_TYPE_IO_1V8_3V0_AUTO) ||
2114 	    (bank->drv[drv_num].drv_type == DRV_TYPE_IO_3V3_ONLY))
2115 		*bit = (pin_num % 8) * 3;
2116 	else
2117 		*bit = (pin_num % 8) * 2;
2118 }
2119 
2120 static int rockchip_perpin_drv_list[DRV_TYPE_MAX][8] = {
2121 	{ 2, 4, 8, 12, -1, -1, -1, -1 },
2122 	{ 3, 6, 9, 12, -1, -1, -1, -1 },
2123 	{ 5, 10, 15, 20, -1, -1, -1, -1 },
2124 	{ 4, 6, 8, 10, 12, 14, 16, 18 },
2125 	{ 4, 7, 10, 13, 16, 19, 22, 26 }
2126 };
2127 
rockchip_get_drive_perpin(struct rockchip_pin_bank * bank,int pin_num)2128 static int rockchip_get_drive_perpin(struct rockchip_pin_bank *bank,
2129 				     int pin_num)
2130 {
2131 	struct rockchip_pinctrl *info = bank->drvdata;
2132 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
2133 	struct regmap *regmap;
2134 	int reg, ret;
2135 	u32 data, temp, rmask_bits;
2136 	u8 bit;
2137 	int drv_type = bank->drv[pin_num / 8].drv_type;
2138 
2139 	ctrl->drv_calc_reg(bank, pin_num, &regmap, &reg, &bit);
2140 
2141 	switch (drv_type) {
2142 	case DRV_TYPE_IO_1V8_3V0_AUTO:
2143 	case DRV_TYPE_IO_3V3_ONLY:
2144 		rmask_bits = RK3399_DRV_3BITS_PER_PIN;
2145 		switch (bit) {
2146 		case 0 ... 12:
2147 			/* regular case, nothing to do */
2148 			break;
2149 		case 15:
2150 			/*
2151 			 * drive-strength offset is special, as it is
2152 			 * spread over 2 registers
2153 			 */
2154 			ret = regmap_read(regmap, reg, &data);
2155 			if (ret)
2156 				return ret;
2157 
2158 			ret = regmap_read(regmap, reg + 0x4, &temp);
2159 			if (ret)
2160 				return ret;
2161 
2162 			/*
2163 			 * the bit data[15] contains bit 0 of the value
2164 			 * while temp[1:0] contains bits 2 and 1
2165 			 */
2166 			data >>= 15;
2167 			temp &= 0x3;
2168 			temp <<= 1;
2169 			data |= temp;
2170 
2171 			return rockchip_perpin_drv_list[drv_type][data];
2172 		case 18 ... 21:
2173 			/* setting fully enclosed in the second register */
2174 			reg += 4;
2175 			bit -= 16;
2176 			break;
2177 		default:
2178 			dev_err(info->dev, "unsupported bit: %d for pinctrl drive type: %d\n",
2179 				bit, drv_type);
2180 			return -EINVAL;
2181 		}
2182 
2183 		break;
2184 	case DRV_TYPE_IO_DEFAULT:
2185 	case DRV_TYPE_IO_1V8_OR_3V0:
2186 	case DRV_TYPE_IO_1V8_ONLY:
2187 		rmask_bits = RK3288_DRV_BITS_PER_PIN;
2188 		break;
2189 	default:
2190 		dev_err(info->dev, "unsupported pinctrl drive type: %d\n",
2191 			drv_type);
2192 		return -EINVAL;
2193 	}
2194 
2195 	ret = regmap_read(regmap, reg, &data);
2196 	if (ret)
2197 		return ret;
2198 
2199 	data >>= bit;
2200 	data &= (1 << rmask_bits) - 1;
2201 
2202 	return rockchip_perpin_drv_list[drv_type][data];
2203 }
2204 
rockchip_set_drive_perpin(struct rockchip_pin_bank * bank,int pin_num,int strength)2205 static int rockchip_set_drive_perpin(struct rockchip_pin_bank *bank,
2206 				     int pin_num, int strength)
2207 {
2208 	struct rockchip_pinctrl *info = bank->drvdata;
2209 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
2210 	struct regmap *regmap;
2211 	int reg, ret, i;
2212 	u32 data, rmask, rmask_bits, temp;
2213 	u8 bit;
2214 	int drv_type = bank->drv[pin_num / 8].drv_type;
2215 
2216 	dev_dbg(info->dev, "setting drive of GPIO%d-%d to %d\n",
2217 		bank->bank_num, pin_num, strength);
2218 
2219 	ctrl->drv_calc_reg(bank, pin_num, &regmap, &reg, &bit);
2220 
2221 	ret = -EINVAL;
2222 	for (i = 0; i < ARRAY_SIZE(rockchip_perpin_drv_list[drv_type]); i++) {
2223 		if (rockchip_perpin_drv_list[drv_type][i] == strength) {
2224 			ret = i;
2225 			break;
2226 		} else if (rockchip_perpin_drv_list[drv_type][i] < 0) {
2227 			ret = rockchip_perpin_drv_list[drv_type][i];
2228 			break;
2229 		}
2230 	}
2231 
2232 	if (ret < 0) {
2233 		dev_err(info->dev, "unsupported driver strength %d\n",
2234 			strength);
2235 		return ret;
2236 	}
2237 
2238 	switch (drv_type) {
2239 	case DRV_TYPE_IO_1V8_3V0_AUTO:
2240 	case DRV_TYPE_IO_3V3_ONLY:
2241 		rmask_bits = RK3399_DRV_3BITS_PER_PIN;
2242 		switch (bit) {
2243 		case 0 ... 12:
2244 			/* regular case, nothing to do */
2245 			break;
2246 		case 15:
2247 			/*
2248 			 * drive-strength offset is special, as it is spread
2249 			 * over 2 registers, the bit data[15] contains bit 0
2250 			 * of the value while temp[1:0] contains bits 2 and 1
2251 			 */
2252 			data = (ret & 0x1) << 15;
2253 			temp = (ret >> 0x1) & 0x3;
2254 
2255 			rmask = BIT(15) | BIT(31);
2256 			data |= BIT(31);
2257 			ret = regmap_update_bits(regmap, reg, rmask, data);
2258 			if (ret)
2259 				return ret;
2260 
2261 			rmask = 0x3 | (0x3 << 16);
2262 			temp |= (0x3 << 16);
2263 			reg += 0x4;
2264 			ret = regmap_update_bits(regmap, reg, rmask, temp);
2265 
2266 			return ret;
2267 		case 18 ... 21:
2268 			/* setting fully enclosed in the second register */
2269 			reg += 4;
2270 			bit -= 16;
2271 			break;
2272 		default:
2273 			dev_err(info->dev, "unsupported bit: %d for pinctrl drive type: %d\n",
2274 				bit, drv_type);
2275 			return -EINVAL;
2276 		}
2277 		break;
2278 	case DRV_TYPE_IO_DEFAULT:
2279 	case DRV_TYPE_IO_1V8_OR_3V0:
2280 	case DRV_TYPE_IO_1V8_ONLY:
2281 		rmask_bits = RK3288_DRV_BITS_PER_PIN;
2282 		break;
2283 	default:
2284 		dev_err(info->dev, "unsupported pinctrl drive type: %d\n",
2285 			drv_type);
2286 		return -EINVAL;
2287 	}
2288 
2289 	/* enable the write to the equivalent lower bits */
2290 	data = ((1 << rmask_bits) - 1) << (bit + 16);
2291 	rmask = data | (data >> 16);
2292 	data |= (ret << bit);
2293 
2294 	ret = regmap_update_bits(regmap, reg, rmask, data);
2295 
2296 	return ret;
2297 }
2298 
2299 static int rockchip_pull_list[PULL_TYPE_MAX][4] = {
2300 	{
2301 		PIN_CONFIG_BIAS_DISABLE,
2302 		PIN_CONFIG_BIAS_PULL_UP,
2303 		PIN_CONFIG_BIAS_PULL_DOWN,
2304 		PIN_CONFIG_BIAS_BUS_HOLD
2305 	},
2306 	{
2307 		PIN_CONFIG_BIAS_DISABLE,
2308 		PIN_CONFIG_BIAS_PULL_DOWN,
2309 		PIN_CONFIG_BIAS_DISABLE,
2310 		PIN_CONFIG_BIAS_PULL_UP
2311 	},
2312 };
2313 
rockchip_get_pull(struct rockchip_pin_bank * bank,int pin_num)2314 static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
2315 {
2316 	struct rockchip_pinctrl *info = bank->drvdata;
2317 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
2318 	struct regmap *regmap;
2319 	int reg, ret, pull_type;
2320 	u8 bit;
2321 	u32 data;
2322 
2323 	/* rk3066b does support any pulls */
2324 	if (ctrl->type == RK3066B)
2325 		return PIN_CONFIG_BIAS_DISABLE;
2326 
2327 	ctrl->pull_calc_reg(bank, pin_num, &regmap, &reg, &bit);
2328 
2329 	ret = regmap_read(regmap, reg, &data);
2330 	if (ret)
2331 		return ret;
2332 
2333 	switch (ctrl->type) {
2334 	case RK2928:
2335 	case RK3128:
2336 		return !(data & BIT(bit))
2337 				? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT
2338 				: PIN_CONFIG_BIAS_DISABLE;
2339 	case PX30:
2340 	case RV1108:
2341 	case RK3188:
2342 	case RK3288:
2343 	case RK3308:
2344 	case RK3368:
2345 	case RK3399:
2346 		pull_type = bank->pull_type[pin_num / 8];
2347 		data >>= bit;
2348 		data &= (1 << RK3188_PULL_BITS_PER_PIN) - 1;
2349 
2350 		return rockchip_pull_list[pull_type][data];
2351 	default:
2352 		dev_err(info->dev, "unsupported pinctrl type\n");
2353 		return -EINVAL;
2354 	};
2355 }
2356 
rockchip_set_pull(struct rockchip_pin_bank * bank,int pin_num,int pull)2357 static int rockchip_set_pull(struct rockchip_pin_bank *bank,
2358 					int pin_num, int pull)
2359 {
2360 	struct rockchip_pinctrl *info = bank->drvdata;
2361 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
2362 	struct regmap *regmap;
2363 	int reg, ret, i, pull_type;
2364 	u8 bit;
2365 	u32 data, rmask;
2366 
2367 	dev_dbg(info->dev, "setting pull of GPIO%d-%d to %d\n",
2368 		 bank->bank_num, pin_num, pull);
2369 
2370 	/* rk3066b does support any pulls */
2371 	if (ctrl->type == RK3066B)
2372 		return pull ? -EINVAL : 0;
2373 
2374 	ctrl->pull_calc_reg(bank, pin_num, &regmap, &reg, &bit);
2375 
2376 	switch (ctrl->type) {
2377 	case RK2928:
2378 	case RK3128:
2379 		data = BIT(bit + 16);
2380 		if (pull == PIN_CONFIG_BIAS_DISABLE)
2381 			data |= BIT(bit);
2382 		ret = regmap_write(regmap, reg, data);
2383 		break;
2384 	case PX30:
2385 	case RV1108:
2386 	case RK3188:
2387 	case RK3288:
2388 	case RK3308:
2389 	case RK3368:
2390 	case RK3399:
2391 		pull_type = bank->pull_type[pin_num / 8];
2392 		ret = -EINVAL;
2393 		for (i = 0; i < ARRAY_SIZE(rockchip_pull_list[pull_type]);
2394 			i++) {
2395 			if (rockchip_pull_list[pull_type][i] == pull) {
2396 				ret = i;
2397 				break;
2398 			}
2399 		}
2400 
2401 		if (ret < 0) {
2402 			dev_err(info->dev, "unsupported pull setting %d\n",
2403 				pull);
2404 			return ret;
2405 		}
2406 
2407 		/* enable the write to the equivalent lower bits */
2408 		data = ((1 << RK3188_PULL_BITS_PER_PIN) - 1) << (bit + 16);
2409 		rmask = data | (data >> 16);
2410 		data |= (ret << bit);
2411 
2412 		ret = regmap_update_bits(regmap, reg, rmask, data);
2413 		break;
2414 	default:
2415 		dev_err(info->dev, "unsupported pinctrl type\n");
2416 		return -EINVAL;
2417 	}
2418 
2419 	return ret;
2420 }
2421 
2422 #define RK3328_SCHMITT_BITS_PER_PIN		1
2423 #define RK3328_SCHMITT_PINS_PER_REG		16
2424 #define RK3328_SCHMITT_BANK_STRIDE		8
2425 #define RK3328_SCHMITT_GRF_OFFSET		0x380
2426 
rk3328_calc_schmitt_reg_and_bit(struct rockchip_pin_bank * bank,int pin_num,struct regmap ** regmap,int * reg,u8 * bit)2427 static int rk3328_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
2428 					   int pin_num,
2429 					   struct regmap **regmap,
2430 					   int *reg, u8 *bit)
2431 {
2432 	struct rockchip_pinctrl *info = bank->drvdata;
2433 
2434 	*regmap = info->regmap_base;
2435 	*reg = RK3328_SCHMITT_GRF_OFFSET;
2436 
2437 	*reg += bank->bank_num * RK3328_SCHMITT_BANK_STRIDE;
2438 	*reg += ((pin_num / RK3328_SCHMITT_PINS_PER_REG) * 4);
2439 	*bit = pin_num % RK3328_SCHMITT_PINS_PER_REG;
2440 
2441 	return 0;
2442 }
2443 
rockchip_get_schmitt(struct rockchip_pin_bank * bank,int pin_num)2444 static int rockchip_get_schmitt(struct rockchip_pin_bank *bank, int pin_num)
2445 {
2446 	struct rockchip_pinctrl *info = bank->drvdata;
2447 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
2448 	struct regmap *regmap;
2449 	int reg, ret;
2450 	u8 bit;
2451 	u32 data;
2452 
2453 	ret = ctrl->schmitt_calc_reg(bank, pin_num, &regmap, &reg, &bit);
2454 	if (ret)
2455 		return ret;
2456 
2457 	ret = regmap_read(regmap, reg, &data);
2458 	if (ret)
2459 		return ret;
2460 
2461 	data >>= bit;
2462 	return data & 0x1;
2463 }
2464 
rockchip_set_schmitt(struct rockchip_pin_bank * bank,int pin_num,int enable)2465 static int rockchip_set_schmitt(struct rockchip_pin_bank *bank,
2466 				int pin_num, int enable)
2467 {
2468 	struct rockchip_pinctrl *info = bank->drvdata;
2469 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
2470 	struct regmap *regmap;
2471 	int reg, ret;
2472 	u8 bit;
2473 	u32 data, rmask;
2474 
2475 	dev_dbg(info->dev, "setting input schmitt of GPIO%d-%d to %d\n",
2476 		bank->bank_num, pin_num, enable);
2477 
2478 	ret = ctrl->schmitt_calc_reg(bank, pin_num, &regmap, &reg, &bit);
2479 	if (ret)
2480 		return ret;
2481 
2482 	/* enable the write to the equivalent lower bits */
2483 	data = BIT(bit + 16) | (enable << bit);
2484 	rmask = BIT(bit + 16) | BIT(bit);
2485 
2486 	return regmap_update_bits(regmap, reg, rmask, data);
2487 }
2488 
2489 /*
2490  * Pinmux_ops handling
2491  */
2492 
rockchip_pmx_get_funcs_count(struct pinctrl_dev * pctldev)2493 static int rockchip_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
2494 {
2495 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
2496 
2497 	return info->nfunctions;
2498 }
2499 
rockchip_pmx_get_func_name(struct pinctrl_dev * pctldev,unsigned selector)2500 static const char *rockchip_pmx_get_func_name(struct pinctrl_dev *pctldev,
2501 					  unsigned selector)
2502 {
2503 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
2504 
2505 	return info->functions[selector].name;
2506 }
2507 
rockchip_pmx_get_groups(struct pinctrl_dev * pctldev,unsigned selector,const char * const ** groups,unsigned * const num_groups)2508 static int rockchip_pmx_get_groups(struct pinctrl_dev *pctldev,
2509 				unsigned selector, const char * const **groups,
2510 				unsigned * const num_groups)
2511 {
2512 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
2513 
2514 	*groups = info->functions[selector].groups;
2515 	*num_groups = info->functions[selector].ngroups;
2516 
2517 	return 0;
2518 }
2519 
rockchip_pmx_set(struct pinctrl_dev * pctldev,unsigned selector,unsigned group)2520 static int rockchip_pmx_set(struct pinctrl_dev *pctldev, unsigned selector,
2521 			    unsigned group)
2522 {
2523 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
2524 	const unsigned int *pins = info->groups[group].pins;
2525 	const struct rockchip_pin_config *data = info->groups[group].data;
2526 	struct rockchip_pin_bank *bank;
2527 	int cnt, ret = 0;
2528 
2529 	dev_dbg(info->dev, "enable function %s group %s\n",
2530 		info->functions[selector].name, info->groups[group].name);
2531 
2532 	/*
2533 	 * for each pin in the pin group selected, program the corresponding
2534 	 * pin function number in the config register.
2535 	 */
2536 	for (cnt = 0; cnt < info->groups[group].npins; cnt++) {
2537 		bank = pin_to_bank(info, pins[cnt]);
2538 		ret = rockchip_set_mux(bank, pins[cnt] - bank->pin_base,
2539 				       data[cnt].func);
2540 		if (ret)
2541 			break;
2542 	}
2543 
2544 	if (ret) {
2545 		/* revert the already done pin settings */
2546 		for (cnt--; cnt >= 0; cnt--)
2547 			rockchip_set_mux(bank, pins[cnt] - bank->pin_base, 0);
2548 
2549 		return ret;
2550 	}
2551 
2552 	return 0;
2553 }
2554 
rockchip_gpio_get_direction(struct gpio_chip * chip,unsigned offset)2555 static int rockchip_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
2556 {
2557 	struct rockchip_pin_bank *bank = gpiochip_get_data(chip);
2558 	u32 data;
2559 	int ret;
2560 
2561 	ret = clk_enable(bank->clk);
2562 	if (ret < 0) {
2563 		dev_err(bank->drvdata->dev,
2564 			"failed to enable clock for bank %s\n", bank->name);
2565 		return ret;
2566 	}
2567 	data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
2568 	clk_disable(bank->clk);
2569 
2570 	if (data & BIT(offset))
2571 		return GPIO_LINE_DIRECTION_OUT;
2572 
2573 	return GPIO_LINE_DIRECTION_IN;
2574 }
2575 
2576 /*
2577  * The calls to gpio_direction_output() and gpio_direction_input()
2578  * leads to this function call (via the pinctrl_gpio_direction_{input|output}()
2579  * function called from the gpiolib interface).
2580  */
_rockchip_pmx_gpio_set_direction(struct gpio_chip * chip,int pin,bool input)2581 static int _rockchip_pmx_gpio_set_direction(struct gpio_chip *chip,
2582 					    int pin, bool input)
2583 {
2584 	struct rockchip_pin_bank *bank;
2585 	int ret;
2586 	unsigned long flags;
2587 	u32 data;
2588 
2589 	bank = gpiochip_get_data(chip);
2590 
2591 	ret = rockchip_set_mux(bank, pin, RK_FUNC_GPIO);
2592 	if (ret < 0)
2593 		return ret;
2594 
2595 	clk_enable(bank->clk);
2596 	raw_spin_lock_irqsave(&bank->slock, flags);
2597 
2598 	data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
2599 	/* set bit to 1 for output, 0 for input */
2600 	if (!input)
2601 		data |= BIT(pin);
2602 	else
2603 		data &= ~BIT(pin);
2604 	writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
2605 
2606 	raw_spin_unlock_irqrestore(&bank->slock, flags);
2607 	clk_disable(bank->clk);
2608 
2609 	return 0;
2610 }
2611 
rockchip_pmx_gpio_set_direction(struct pinctrl_dev * pctldev,struct pinctrl_gpio_range * range,unsigned offset,bool input)2612 static int rockchip_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
2613 					      struct pinctrl_gpio_range *range,
2614 					      unsigned offset, bool input)
2615 {
2616 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
2617 	struct gpio_chip *chip;
2618 	int pin;
2619 
2620 	chip = range->gc;
2621 	pin = offset - chip->base;
2622 	dev_dbg(info->dev, "gpio_direction for pin %u as %s-%d to %s\n",
2623 		 offset, range->name, pin, input ? "input" : "output");
2624 
2625 	return _rockchip_pmx_gpio_set_direction(chip, offset - chip->base,
2626 						input);
2627 }
2628 
2629 static const struct pinmux_ops rockchip_pmx_ops = {
2630 	.get_functions_count	= rockchip_pmx_get_funcs_count,
2631 	.get_function_name	= rockchip_pmx_get_func_name,
2632 	.get_function_groups	= rockchip_pmx_get_groups,
2633 	.set_mux		= rockchip_pmx_set,
2634 	.gpio_set_direction	= rockchip_pmx_gpio_set_direction,
2635 };
2636 
2637 /*
2638  * Pinconf_ops handling
2639  */
2640 
rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl * ctrl,enum pin_config_param pull)2641 static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
2642 					enum pin_config_param pull)
2643 {
2644 	switch (ctrl->type) {
2645 	case RK2928:
2646 	case RK3128:
2647 		return (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT ||
2648 					pull == PIN_CONFIG_BIAS_DISABLE);
2649 	case RK3066B:
2650 		return pull ? false : true;
2651 	case PX30:
2652 	case RV1108:
2653 	case RK3188:
2654 	case RK3288:
2655 	case RK3308:
2656 	case RK3368:
2657 	case RK3399:
2658 		return (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT);
2659 	}
2660 
2661 	return false;
2662 }
2663 
2664 static void rockchip_gpio_set(struct gpio_chip *gc, unsigned offset, int value);
2665 static int rockchip_gpio_get(struct gpio_chip *gc, unsigned offset);
2666 
2667 /* set the pin config settings for a specified pin */
rockchip_pinconf_set(struct pinctrl_dev * pctldev,unsigned int pin,unsigned long * configs,unsigned num_configs)2668 static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
2669 				unsigned long *configs, unsigned num_configs)
2670 {
2671 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
2672 	struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
2673 	enum pin_config_param param;
2674 	u32 arg;
2675 	int i;
2676 	int rc;
2677 
2678 	for (i = 0; i < num_configs; i++) {
2679 		param = pinconf_to_config_param(configs[i]);
2680 		arg = pinconf_to_config_argument(configs[i]);
2681 
2682 		switch (param) {
2683 		case PIN_CONFIG_BIAS_DISABLE:
2684 			rc =  rockchip_set_pull(bank, pin - bank->pin_base,
2685 				param);
2686 			if (rc)
2687 				return rc;
2688 			break;
2689 		case PIN_CONFIG_BIAS_PULL_UP:
2690 		case PIN_CONFIG_BIAS_PULL_DOWN:
2691 		case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
2692 		case PIN_CONFIG_BIAS_BUS_HOLD:
2693 			if (!rockchip_pinconf_pull_valid(info->ctrl, param))
2694 				return -ENOTSUPP;
2695 
2696 			if (!arg)
2697 				return -EINVAL;
2698 
2699 			rc = rockchip_set_pull(bank, pin - bank->pin_base,
2700 				param);
2701 			if (rc)
2702 				return rc;
2703 			break;
2704 		case PIN_CONFIG_OUTPUT:
2705 			rockchip_gpio_set(&bank->gpio_chip,
2706 					  pin - bank->pin_base, arg);
2707 			rc = _rockchip_pmx_gpio_set_direction(&bank->gpio_chip,
2708 					  pin - bank->pin_base, false);
2709 			if (rc)
2710 				return rc;
2711 			break;
2712 		case PIN_CONFIG_DRIVE_STRENGTH:
2713 			/* rk3288 is the first with per-pin drive-strength */
2714 			if (!info->ctrl->drv_calc_reg)
2715 				return -ENOTSUPP;
2716 
2717 			rc = rockchip_set_drive_perpin(bank,
2718 						pin - bank->pin_base, arg);
2719 			if (rc < 0)
2720 				return rc;
2721 			break;
2722 		case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
2723 			if (!info->ctrl->schmitt_calc_reg)
2724 				return -ENOTSUPP;
2725 
2726 			rc = rockchip_set_schmitt(bank,
2727 						  pin - bank->pin_base, arg);
2728 			if (rc < 0)
2729 				return rc;
2730 			break;
2731 		default:
2732 			return -ENOTSUPP;
2733 			break;
2734 		}
2735 	} /* for each config */
2736 
2737 	return 0;
2738 }
2739 
2740 /* get the pin config settings for a specified pin */
rockchip_pinconf_get(struct pinctrl_dev * pctldev,unsigned int pin,unsigned long * config)2741 static int rockchip_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
2742 							unsigned long *config)
2743 {
2744 	struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
2745 	struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
2746 	enum pin_config_param param = pinconf_to_config_param(*config);
2747 	u16 arg;
2748 	int rc;
2749 
2750 	switch (param) {
2751 	case PIN_CONFIG_BIAS_DISABLE:
2752 		if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
2753 			return -EINVAL;
2754 
2755 		arg = 0;
2756 		break;
2757 	case PIN_CONFIG_BIAS_PULL_UP:
2758 	case PIN_CONFIG_BIAS_PULL_DOWN:
2759 	case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
2760 	case PIN_CONFIG_BIAS_BUS_HOLD:
2761 		if (!rockchip_pinconf_pull_valid(info->ctrl, param))
2762 			return -ENOTSUPP;
2763 
2764 		if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
2765 			return -EINVAL;
2766 
2767 		arg = 1;
2768 		break;
2769 	case PIN_CONFIG_OUTPUT:
2770 		rc = rockchip_get_mux(bank, pin - bank->pin_base);
2771 		if (rc != RK_FUNC_GPIO)
2772 			return -EINVAL;
2773 
2774 		rc = rockchip_gpio_get(&bank->gpio_chip, pin - bank->pin_base);
2775 		if (rc < 0)
2776 			return rc;
2777 
2778 		arg = rc ? 1 : 0;
2779 		break;
2780 	case PIN_CONFIG_DRIVE_STRENGTH:
2781 		/* rk3288 is the first with per-pin drive-strength */
2782 		if (!info->ctrl->drv_calc_reg)
2783 			return -ENOTSUPP;
2784 
2785 		rc = rockchip_get_drive_perpin(bank, pin - bank->pin_base);
2786 		if (rc < 0)
2787 			return rc;
2788 
2789 		arg = rc;
2790 		break;
2791 	case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
2792 		if (!info->ctrl->schmitt_calc_reg)
2793 			return -ENOTSUPP;
2794 
2795 		rc = rockchip_get_schmitt(bank, pin - bank->pin_base);
2796 		if (rc < 0)
2797 			return rc;
2798 
2799 		arg = rc;
2800 		break;
2801 	default:
2802 		return -ENOTSUPP;
2803 		break;
2804 	}
2805 
2806 	*config = pinconf_to_config_packed(param, arg);
2807 
2808 	return 0;
2809 }
2810 
2811 static const struct pinconf_ops rockchip_pinconf_ops = {
2812 	.pin_config_get			= rockchip_pinconf_get,
2813 	.pin_config_set			= rockchip_pinconf_set,
2814 	.is_generic			= true,
2815 };
2816 
2817 static const struct of_device_id rockchip_bank_match[] = {
2818 	{ .compatible = "rockchip,gpio-bank" },
2819 	{ .compatible = "rockchip,rk3188-gpio-bank0" },
2820 	{},
2821 };
2822 
rockchip_pinctrl_child_count(struct rockchip_pinctrl * info,struct device_node * np)2823 static void rockchip_pinctrl_child_count(struct rockchip_pinctrl *info,
2824 						struct device_node *np)
2825 {
2826 	struct device_node *child;
2827 
2828 	for_each_child_of_node(np, child) {
2829 		if (of_match_node(rockchip_bank_match, child))
2830 			continue;
2831 
2832 		info->nfunctions++;
2833 		info->ngroups += of_get_child_count(child);
2834 	}
2835 }
2836 
rockchip_pinctrl_parse_groups(struct device_node * np,struct rockchip_pin_group * grp,struct rockchip_pinctrl * info,u32 index)2837 static int rockchip_pinctrl_parse_groups(struct device_node *np,
2838 					      struct rockchip_pin_group *grp,
2839 					      struct rockchip_pinctrl *info,
2840 					      u32 index)
2841 {
2842 	struct rockchip_pin_bank *bank;
2843 	int size;
2844 	const __be32 *list;
2845 	int num;
2846 	int i, j;
2847 	int ret;
2848 
2849 	dev_dbg(info->dev, "group(%d): %pOFn\n", index, np);
2850 
2851 	/* Initialise group */
2852 	grp->name = np->name;
2853 
2854 	/*
2855 	 * the binding format is rockchip,pins = <bank pin mux CONFIG>,
2856 	 * do sanity check and calculate pins number
2857 	 */
2858 	list = of_get_property(np, "rockchip,pins", &size);
2859 	/* we do not check return since it's safe node passed down */
2860 	size /= sizeof(*list);
2861 	if (!size || size % 4) {
2862 		dev_err(info->dev, "wrong pins number or pins and configs should be by 4\n");
2863 		return -EINVAL;
2864 	}
2865 
2866 	grp->npins = size / 4;
2867 
2868 	grp->pins = devm_kcalloc(info->dev, grp->npins, sizeof(unsigned int),
2869 						GFP_KERNEL);
2870 	grp->data = devm_kcalloc(info->dev,
2871 					grp->npins,
2872 					sizeof(struct rockchip_pin_config),
2873 					GFP_KERNEL);
2874 	if (!grp->pins || !grp->data)
2875 		return -ENOMEM;
2876 
2877 	for (i = 0, j = 0; i < size; i += 4, j++) {
2878 		const __be32 *phandle;
2879 		struct device_node *np_config;
2880 
2881 		num = be32_to_cpu(*list++);
2882 		bank = bank_num_to_bank(info, num);
2883 		if (IS_ERR(bank))
2884 			return PTR_ERR(bank);
2885 
2886 		grp->pins[j] = bank->pin_base + be32_to_cpu(*list++);
2887 		grp->data[j].func = be32_to_cpu(*list++);
2888 
2889 		phandle = list++;
2890 		if (!phandle)
2891 			return -EINVAL;
2892 
2893 		np_config = of_find_node_by_phandle(be32_to_cpup(phandle));
2894 		ret = pinconf_generic_parse_dt_config(np_config, NULL,
2895 				&grp->data[j].configs, &grp->data[j].nconfigs);
2896 		if (ret)
2897 			return ret;
2898 	}
2899 
2900 	return 0;
2901 }
2902 
rockchip_pinctrl_parse_functions(struct device_node * np,struct rockchip_pinctrl * info,u32 index)2903 static int rockchip_pinctrl_parse_functions(struct device_node *np,
2904 						struct rockchip_pinctrl *info,
2905 						u32 index)
2906 {
2907 	struct device_node *child;
2908 	struct rockchip_pmx_func *func;
2909 	struct rockchip_pin_group *grp;
2910 	int ret;
2911 	static u32 grp_index;
2912 	u32 i = 0;
2913 
2914 	dev_dbg(info->dev, "parse function(%d): %pOFn\n", index, np);
2915 
2916 	func = &info->functions[index];
2917 
2918 	/* Initialise function */
2919 	func->name = np->name;
2920 	func->ngroups = of_get_child_count(np);
2921 	if (func->ngroups <= 0)
2922 		return 0;
2923 
2924 	func->groups = devm_kcalloc(info->dev,
2925 			func->ngroups, sizeof(char *), GFP_KERNEL);
2926 	if (!func->groups)
2927 		return -ENOMEM;
2928 
2929 	for_each_child_of_node(np, child) {
2930 		func->groups[i] = child->name;
2931 		grp = &info->groups[grp_index++];
2932 		ret = rockchip_pinctrl_parse_groups(child, grp, info, i++);
2933 		if (ret) {
2934 			of_node_put(child);
2935 			return ret;
2936 		}
2937 	}
2938 
2939 	return 0;
2940 }
2941 
rockchip_pinctrl_parse_dt(struct platform_device * pdev,struct rockchip_pinctrl * info)2942 static int rockchip_pinctrl_parse_dt(struct platform_device *pdev,
2943 					      struct rockchip_pinctrl *info)
2944 {
2945 	struct device *dev = &pdev->dev;
2946 	struct device_node *np = dev->of_node;
2947 	struct device_node *child;
2948 	int ret;
2949 	int i;
2950 
2951 	rockchip_pinctrl_child_count(info, np);
2952 
2953 	dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions);
2954 	dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups);
2955 
2956 	info->functions = devm_kcalloc(dev,
2957 					      info->nfunctions,
2958 					      sizeof(struct rockchip_pmx_func),
2959 					      GFP_KERNEL);
2960 	if (!info->functions)
2961 		return -ENOMEM;
2962 
2963 	info->groups = devm_kcalloc(dev,
2964 					    info->ngroups,
2965 					    sizeof(struct rockchip_pin_group),
2966 					    GFP_KERNEL);
2967 	if (!info->groups)
2968 		return -ENOMEM;
2969 
2970 	i = 0;
2971 
2972 	for_each_child_of_node(np, child) {
2973 		if (of_match_node(rockchip_bank_match, child))
2974 			continue;
2975 
2976 		ret = rockchip_pinctrl_parse_functions(child, info, i++);
2977 		if (ret) {
2978 			dev_err(&pdev->dev, "failed to parse function\n");
2979 			of_node_put(child);
2980 			return ret;
2981 		}
2982 	}
2983 
2984 	return 0;
2985 }
2986 
rockchip_pinctrl_register(struct platform_device * pdev,struct rockchip_pinctrl * info)2987 static int rockchip_pinctrl_register(struct platform_device *pdev,
2988 					struct rockchip_pinctrl *info)
2989 {
2990 	struct pinctrl_desc *ctrldesc = &info->pctl;
2991 	struct pinctrl_pin_desc *pindesc, *pdesc;
2992 	struct rockchip_pin_bank *pin_bank;
2993 	int pin, bank, ret;
2994 	int k;
2995 
2996 	ctrldesc->name = "rockchip-pinctrl";
2997 	ctrldesc->owner = THIS_MODULE;
2998 	ctrldesc->pctlops = &rockchip_pctrl_ops;
2999 	ctrldesc->pmxops = &rockchip_pmx_ops;
3000 	ctrldesc->confops = &rockchip_pinconf_ops;
3001 
3002 	pindesc = devm_kcalloc(&pdev->dev,
3003 			       info->ctrl->nr_pins, sizeof(*pindesc),
3004 			       GFP_KERNEL);
3005 	if (!pindesc)
3006 		return -ENOMEM;
3007 
3008 	ctrldesc->pins = pindesc;
3009 	ctrldesc->npins = info->ctrl->nr_pins;
3010 
3011 	pdesc = pindesc;
3012 	for (bank = 0 , k = 0; bank < info->ctrl->nr_banks; bank++) {
3013 		pin_bank = &info->ctrl->pin_banks[bank];
3014 		for (pin = 0; pin < pin_bank->nr_pins; pin++, k++) {
3015 			pdesc->number = k;
3016 			pdesc->name = kasprintf(GFP_KERNEL, "%s-%d",
3017 						pin_bank->name, pin);
3018 			pdesc++;
3019 		}
3020 	}
3021 
3022 	ret = rockchip_pinctrl_parse_dt(pdev, info);
3023 	if (ret)
3024 		return ret;
3025 
3026 	info->pctl_dev = devm_pinctrl_register(&pdev->dev, ctrldesc, info);
3027 	if (IS_ERR(info->pctl_dev)) {
3028 		dev_err(&pdev->dev, "could not register pinctrl driver\n");
3029 		return PTR_ERR(info->pctl_dev);
3030 	}
3031 
3032 	for (bank = 0; bank < info->ctrl->nr_banks; ++bank) {
3033 		pin_bank = &info->ctrl->pin_banks[bank];
3034 		pin_bank->grange.name = pin_bank->name;
3035 		pin_bank->grange.id = bank;
3036 		pin_bank->grange.pin_base = pin_bank->pin_base;
3037 		pin_bank->grange.base = pin_bank->gpio_chip.base;
3038 		pin_bank->grange.npins = pin_bank->gpio_chip.ngpio;
3039 		pin_bank->grange.gc = &pin_bank->gpio_chip;
3040 		pinctrl_add_gpio_range(info->pctl_dev, &pin_bank->grange);
3041 	}
3042 
3043 	return 0;
3044 }
3045 
3046 /*
3047  * GPIO handling
3048  */
3049 
rockchip_gpio_set(struct gpio_chip * gc,unsigned offset,int value)3050 static void rockchip_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
3051 {
3052 	struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
3053 	void __iomem *reg = bank->reg_base + GPIO_SWPORT_DR;
3054 	unsigned long flags;
3055 	u32 data;
3056 
3057 	clk_enable(bank->clk);
3058 	raw_spin_lock_irqsave(&bank->slock, flags);
3059 
3060 	data = readl(reg);
3061 	data &= ~BIT(offset);
3062 	if (value)
3063 		data |= BIT(offset);
3064 	writel(data, reg);
3065 
3066 	raw_spin_unlock_irqrestore(&bank->slock, flags);
3067 	clk_disable(bank->clk);
3068 }
3069 
3070 /*
3071  * Returns the level of the pin for input direction and setting of the DR
3072  * register for output gpios.
3073  */
rockchip_gpio_get(struct gpio_chip * gc,unsigned offset)3074 static int rockchip_gpio_get(struct gpio_chip *gc, unsigned offset)
3075 {
3076 	struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
3077 	u32 data;
3078 
3079 	clk_enable(bank->clk);
3080 	data = readl(bank->reg_base + GPIO_EXT_PORT);
3081 	clk_disable(bank->clk);
3082 	data >>= offset;
3083 	data &= 1;
3084 	return data;
3085 }
3086 
3087 /*
3088  * gpiolib gpio_direction_input callback function. The setting of the pin
3089  * mux function as 'gpio input' will be handled by the pinctrl subsystem
3090  * interface.
3091  */
rockchip_gpio_direction_input(struct gpio_chip * gc,unsigned offset)3092 static int rockchip_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
3093 {
3094 	return pinctrl_gpio_direction_input(gc->base + offset);
3095 }
3096 
3097 /*
3098  * gpiolib gpio_direction_output callback function. The setting of the pin
3099  * mux function as 'gpio output' will be handled by the pinctrl subsystem
3100  * interface.
3101  */
rockchip_gpio_direction_output(struct gpio_chip * gc,unsigned offset,int value)3102 static int rockchip_gpio_direction_output(struct gpio_chip *gc,
3103 					  unsigned offset, int value)
3104 {
3105 	rockchip_gpio_set(gc, offset, value);
3106 	return pinctrl_gpio_direction_output(gc->base + offset);
3107 }
3108 
rockchip_gpio_set_debounce(struct gpio_chip * gc,unsigned int offset,bool enable)3109 static void rockchip_gpio_set_debounce(struct gpio_chip *gc,
3110 				       unsigned int offset, bool enable)
3111 {
3112 	struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
3113 	void __iomem *reg = bank->reg_base + GPIO_DEBOUNCE;
3114 	unsigned long flags;
3115 	u32 data;
3116 
3117 	clk_enable(bank->clk);
3118 	raw_spin_lock_irqsave(&bank->slock, flags);
3119 
3120 	data = readl(reg);
3121 	if (enable)
3122 		data |= BIT(offset);
3123 	else
3124 		data &= ~BIT(offset);
3125 	writel(data, reg);
3126 
3127 	raw_spin_unlock_irqrestore(&bank->slock, flags);
3128 	clk_disable(bank->clk);
3129 }
3130 
3131 /*
3132  * gpiolib set_config callback function. The setting of the pin
3133  * mux function as 'gpio output' will be handled by the pinctrl subsystem
3134  * interface.
3135  */
rockchip_gpio_set_config(struct gpio_chip * gc,unsigned int offset,unsigned long config)3136 static int rockchip_gpio_set_config(struct gpio_chip *gc, unsigned int offset,
3137 				  unsigned long config)
3138 {
3139 	enum pin_config_param param = pinconf_to_config_param(config);
3140 
3141 	switch (param) {
3142 	case PIN_CONFIG_INPUT_DEBOUNCE:
3143 		rockchip_gpio_set_debounce(gc, offset, true);
3144 		/*
3145 		 * Rockchip's gpio could only support up to one period
3146 		 * of the debounce clock(pclk), which is far away from
3147 		 * satisftying the requirement, as pclk is usually near
3148 		 * 100MHz shared by all peripherals. So the fact is it
3149 		 * has crippled debounce capability could only be useful
3150 		 * to prevent any spurious glitches from waking up the system
3151 		 * if the gpio is conguired as wakeup interrupt source. Let's
3152 		 * still return -ENOTSUPP as before, to make sure the caller
3153 		 * of gpiod_set_debounce won't change its behaviour.
3154 		 */
3155 		return -ENOTSUPP;
3156 	default:
3157 		return -ENOTSUPP;
3158 	}
3159 }
3160 
3161 /*
3162  * gpiolib gpio_to_irq callback function. Creates a mapping between a GPIO pin
3163  * and a virtual IRQ, if not already present.
3164  */
rockchip_gpio_to_irq(struct gpio_chip * gc,unsigned offset)3165 static int rockchip_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
3166 {
3167 	struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
3168 	unsigned int virq;
3169 
3170 	if (!bank->domain)
3171 		return -ENXIO;
3172 
3173 	clk_enable(bank->clk);
3174 	virq = irq_create_mapping(bank->domain, offset);
3175 	clk_disable(bank->clk);
3176 
3177 	return (virq) ? : -ENXIO;
3178 }
3179 
3180 static const struct gpio_chip rockchip_gpiolib_chip = {
3181 	.request = gpiochip_generic_request,
3182 	.free = gpiochip_generic_free,
3183 	.set = rockchip_gpio_set,
3184 	.get = rockchip_gpio_get,
3185 	.get_direction	= rockchip_gpio_get_direction,
3186 	.direction_input = rockchip_gpio_direction_input,
3187 	.direction_output = rockchip_gpio_direction_output,
3188 	.set_config = rockchip_gpio_set_config,
3189 	.to_irq = rockchip_gpio_to_irq,
3190 	.owner = THIS_MODULE,
3191 };
3192 
3193 /*
3194  * Interrupt handling
3195  */
3196 
rockchip_irq_demux(struct irq_desc * desc)3197 static void rockchip_irq_demux(struct irq_desc *desc)
3198 {
3199 	struct irq_chip *chip = irq_desc_get_chip(desc);
3200 	struct rockchip_pin_bank *bank = irq_desc_get_handler_data(desc);
3201 	u32 pend;
3202 
3203 	dev_dbg(bank->drvdata->dev, "got irq for bank %s\n", bank->name);
3204 
3205 	chained_irq_enter(chip, desc);
3206 
3207 	pend = readl_relaxed(bank->reg_base + GPIO_INT_STATUS);
3208 
3209 	while (pend) {
3210 		unsigned int irq, virq;
3211 
3212 		irq = __ffs(pend);
3213 		pend &= ~BIT(irq);
3214 		virq = irq_find_mapping(bank->domain, irq);
3215 
3216 		if (!virq) {
3217 			dev_err(bank->drvdata->dev, "unmapped irq %d\n", irq);
3218 			continue;
3219 		}
3220 
3221 		dev_dbg(bank->drvdata->dev, "handling irq %d\n", irq);
3222 
3223 		/*
3224 		 * Triggering IRQ on both rising and falling edge
3225 		 * needs manual intervention.
3226 		 */
3227 		if (bank->toggle_edge_mode & BIT(irq)) {
3228 			u32 data, data_old, polarity;
3229 			unsigned long flags;
3230 
3231 			data = readl_relaxed(bank->reg_base + GPIO_EXT_PORT);
3232 			do {
3233 				raw_spin_lock_irqsave(&bank->slock, flags);
3234 
3235 				polarity = readl_relaxed(bank->reg_base +
3236 							 GPIO_INT_POLARITY);
3237 				if (data & BIT(irq))
3238 					polarity &= ~BIT(irq);
3239 				else
3240 					polarity |= BIT(irq);
3241 				writel(polarity,
3242 				       bank->reg_base + GPIO_INT_POLARITY);
3243 
3244 				raw_spin_unlock_irqrestore(&bank->slock, flags);
3245 
3246 				data_old = data;
3247 				data = readl_relaxed(bank->reg_base +
3248 						     GPIO_EXT_PORT);
3249 			} while ((data & BIT(irq)) != (data_old & BIT(irq)));
3250 		}
3251 
3252 		generic_handle_irq(virq);
3253 	}
3254 
3255 	chained_irq_exit(chip, desc);
3256 }
3257 
rockchip_irq_set_type(struct irq_data * d,unsigned int type)3258 static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
3259 {
3260 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
3261 	struct rockchip_pin_bank *bank = gc->private;
3262 	u32 mask = BIT(d->hwirq);
3263 	u32 polarity;
3264 	u32 level;
3265 	u32 data;
3266 	unsigned long flags;
3267 	int ret;
3268 
3269 	/* make sure the pin is configured as gpio input */
3270 	ret = rockchip_set_mux(bank, d->hwirq, RK_FUNC_GPIO);
3271 	if (ret < 0)
3272 		return ret;
3273 
3274 	clk_enable(bank->clk);
3275 	raw_spin_lock_irqsave(&bank->slock, flags);
3276 
3277 	data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
3278 	data &= ~mask;
3279 	writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
3280 
3281 	raw_spin_unlock_irqrestore(&bank->slock, flags);
3282 
3283 	if (type & IRQ_TYPE_EDGE_BOTH)
3284 		irq_set_handler_locked(d, handle_edge_irq);
3285 	else
3286 		irq_set_handler_locked(d, handle_level_irq);
3287 
3288 	raw_spin_lock_irqsave(&bank->slock, flags);
3289 	irq_gc_lock(gc);
3290 
3291 	level = readl_relaxed(gc->reg_base + GPIO_INTTYPE_LEVEL);
3292 	polarity = readl_relaxed(gc->reg_base + GPIO_INT_POLARITY);
3293 
3294 	switch (type) {
3295 	case IRQ_TYPE_EDGE_BOTH:
3296 		bank->toggle_edge_mode |= mask;
3297 		level |= mask;
3298 
3299 		/*
3300 		 * Determine gpio state. If 1 next interrupt should be falling
3301 		 * otherwise rising.
3302 		 */
3303 		data = readl(bank->reg_base + GPIO_EXT_PORT);
3304 		if (data & mask)
3305 			polarity &= ~mask;
3306 		else
3307 			polarity |= mask;
3308 		break;
3309 	case IRQ_TYPE_EDGE_RISING:
3310 		bank->toggle_edge_mode &= ~mask;
3311 		level |= mask;
3312 		polarity |= mask;
3313 		break;
3314 	case IRQ_TYPE_EDGE_FALLING:
3315 		bank->toggle_edge_mode &= ~mask;
3316 		level |= mask;
3317 		polarity &= ~mask;
3318 		break;
3319 	case IRQ_TYPE_LEVEL_HIGH:
3320 		bank->toggle_edge_mode &= ~mask;
3321 		level &= ~mask;
3322 		polarity |= mask;
3323 		break;
3324 	case IRQ_TYPE_LEVEL_LOW:
3325 		bank->toggle_edge_mode &= ~mask;
3326 		level &= ~mask;
3327 		polarity &= ~mask;
3328 		break;
3329 	default:
3330 		irq_gc_unlock(gc);
3331 		raw_spin_unlock_irqrestore(&bank->slock, flags);
3332 		clk_disable(bank->clk);
3333 		return -EINVAL;
3334 	}
3335 
3336 	writel_relaxed(level, gc->reg_base + GPIO_INTTYPE_LEVEL);
3337 	writel_relaxed(polarity, gc->reg_base + GPIO_INT_POLARITY);
3338 
3339 	irq_gc_unlock(gc);
3340 	raw_spin_unlock_irqrestore(&bank->slock, flags);
3341 	clk_disable(bank->clk);
3342 
3343 	return 0;
3344 }
3345 
rockchip_irq_suspend(struct irq_data * d)3346 static void rockchip_irq_suspend(struct irq_data *d)
3347 {
3348 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
3349 	struct rockchip_pin_bank *bank = gc->private;
3350 
3351 	clk_enable(bank->clk);
3352 	bank->saved_masks = irq_reg_readl(gc, GPIO_INTMASK);
3353 	irq_reg_writel(gc, ~gc->wake_active, GPIO_INTMASK);
3354 	clk_disable(bank->clk);
3355 }
3356 
rockchip_irq_resume(struct irq_data * d)3357 static void rockchip_irq_resume(struct irq_data *d)
3358 {
3359 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
3360 	struct rockchip_pin_bank *bank = gc->private;
3361 
3362 	clk_enable(bank->clk);
3363 	irq_reg_writel(gc, bank->saved_masks, GPIO_INTMASK);
3364 	clk_disable(bank->clk);
3365 }
3366 
rockchip_irq_enable(struct irq_data * d)3367 static void rockchip_irq_enable(struct irq_data *d)
3368 {
3369 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
3370 	struct rockchip_pin_bank *bank = gc->private;
3371 
3372 	clk_enable(bank->clk);
3373 	irq_gc_mask_clr_bit(d);
3374 }
3375 
rockchip_irq_disable(struct irq_data * d)3376 static void rockchip_irq_disable(struct irq_data *d)
3377 {
3378 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
3379 	struct rockchip_pin_bank *bank = gc->private;
3380 
3381 	irq_gc_mask_set_bit(d);
3382 	clk_disable(bank->clk);
3383 }
3384 
rockchip_interrupts_register(struct platform_device * pdev,struct rockchip_pinctrl * info)3385 static int rockchip_interrupts_register(struct platform_device *pdev,
3386 						struct rockchip_pinctrl *info)
3387 {
3388 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
3389 	struct rockchip_pin_bank *bank = ctrl->pin_banks;
3390 	unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
3391 	struct irq_chip_generic *gc;
3392 	int ret;
3393 	int i;
3394 
3395 	for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
3396 		if (!bank->valid) {
3397 			dev_warn(&pdev->dev, "bank %s is not valid\n",
3398 				 bank->name);
3399 			continue;
3400 		}
3401 
3402 		ret = clk_enable(bank->clk);
3403 		if (ret) {
3404 			dev_err(&pdev->dev, "failed to enable clock for bank %s\n",
3405 				bank->name);
3406 			continue;
3407 		}
3408 
3409 		bank->domain = irq_domain_add_linear(bank->of_node, 32,
3410 						&irq_generic_chip_ops, NULL);
3411 		if (!bank->domain) {
3412 			dev_warn(&pdev->dev, "could not initialize irq domain for bank %s\n",
3413 				 bank->name);
3414 			clk_disable(bank->clk);
3415 			continue;
3416 		}
3417 
3418 		ret = irq_alloc_domain_generic_chips(bank->domain, 32, 1,
3419 					 "rockchip_gpio_irq", handle_level_irq,
3420 					 clr, 0, 0);
3421 		if (ret) {
3422 			dev_err(&pdev->dev, "could not alloc generic chips for bank %s\n",
3423 				bank->name);
3424 			irq_domain_remove(bank->domain);
3425 			clk_disable(bank->clk);
3426 			continue;
3427 		}
3428 
3429 		gc = irq_get_domain_generic_chip(bank->domain, 0);
3430 		gc->reg_base = bank->reg_base;
3431 		gc->private = bank;
3432 		gc->chip_types[0].regs.mask = GPIO_INTMASK;
3433 		gc->chip_types[0].regs.ack = GPIO_PORTS_EOI;
3434 		gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit;
3435 		gc->chip_types[0].chip.irq_mask = irq_gc_mask_set_bit;
3436 		gc->chip_types[0].chip.irq_unmask = irq_gc_mask_clr_bit;
3437 		gc->chip_types[0].chip.irq_enable = rockchip_irq_enable;
3438 		gc->chip_types[0].chip.irq_disable = rockchip_irq_disable;
3439 		gc->chip_types[0].chip.irq_set_wake = irq_gc_set_wake;
3440 		gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend;
3441 		gc->chip_types[0].chip.irq_resume = rockchip_irq_resume;
3442 		gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type;
3443 		gc->wake_enabled = IRQ_MSK(bank->nr_pins);
3444 
3445 		/*
3446 		 * Linux assumes that all interrupts start out disabled/masked.
3447 		 * Our driver only uses the concept of masked and always keeps
3448 		 * things enabled, so for us that's all masked and all enabled.
3449 		 */
3450 		writel_relaxed(0xffffffff, bank->reg_base + GPIO_INTMASK);
3451 		writel_relaxed(0xffffffff, bank->reg_base + GPIO_INTEN);
3452 		gc->mask_cache = 0xffffffff;
3453 
3454 		irq_set_chained_handler_and_data(bank->irq,
3455 						 rockchip_irq_demux, bank);
3456 		clk_disable(bank->clk);
3457 	}
3458 
3459 	return 0;
3460 }
3461 
rockchip_gpiolib_register(struct platform_device * pdev,struct rockchip_pinctrl * info)3462 static int rockchip_gpiolib_register(struct platform_device *pdev,
3463 						struct rockchip_pinctrl *info)
3464 {
3465 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
3466 	struct rockchip_pin_bank *bank = ctrl->pin_banks;
3467 	struct gpio_chip *gc;
3468 	int ret;
3469 	int i;
3470 
3471 	for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
3472 		if (!bank->valid) {
3473 			dev_warn(&pdev->dev, "bank %s is not valid\n",
3474 				 bank->name);
3475 			continue;
3476 		}
3477 
3478 		bank->gpio_chip = rockchip_gpiolib_chip;
3479 
3480 		gc = &bank->gpio_chip;
3481 		gc->base = bank->pin_base;
3482 		gc->ngpio = bank->nr_pins;
3483 		gc->parent = &pdev->dev;
3484 		gc->of_node = bank->of_node;
3485 		gc->label = bank->name;
3486 
3487 		ret = gpiochip_add_data(gc, bank);
3488 		if (ret) {
3489 			dev_err(&pdev->dev, "failed to register gpio_chip %s, error code: %d\n",
3490 							gc->label, ret);
3491 			goto fail;
3492 		}
3493 	}
3494 
3495 	rockchip_interrupts_register(pdev, info);
3496 
3497 	return 0;
3498 
3499 fail:
3500 	for (--i, --bank; i >= 0; --i, --bank) {
3501 		if (!bank->valid)
3502 			continue;
3503 		gpiochip_remove(&bank->gpio_chip);
3504 	}
3505 	return ret;
3506 }
3507 
rockchip_gpiolib_unregister(struct platform_device * pdev,struct rockchip_pinctrl * info)3508 static int rockchip_gpiolib_unregister(struct platform_device *pdev,
3509 						struct rockchip_pinctrl *info)
3510 {
3511 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
3512 	struct rockchip_pin_bank *bank = ctrl->pin_banks;
3513 	int i;
3514 
3515 	for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
3516 		if (!bank->valid)
3517 			continue;
3518 		gpiochip_remove(&bank->gpio_chip);
3519 	}
3520 
3521 	return 0;
3522 }
3523 
rockchip_get_bank_data(struct rockchip_pin_bank * bank,struct rockchip_pinctrl * info)3524 static int rockchip_get_bank_data(struct rockchip_pin_bank *bank,
3525 				  struct rockchip_pinctrl *info)
3526 {
3527 	struct resource res;
3528 	void __iomem *base;
3529 
3530 	if (of_address_to_resource(bank->of_node, 0, &res)) {
3531 		dev_err(info->dev, "cannot find IO resource for bank\n");
3532 		return -ENOENT;
3533 	}
3534 
3535 	bank->reg_base = devm_ioremap_resource(info->dev, &res);
3536 	if (IS_ERR(bank->reg_base))
3537 		return PTR_ERR(bank->reg_base);
3538 
3539 	/*
3540 	 * special case, where parts of the pull setting-registers are
3541 	 * part of the PMU register space
3542 	 */
3543 	if (of_device_is_compatible(bank->of_node,
3544 				    "rockchip,rk3188-gpio-bank0")) {
3545 		struct device_node *node;
3546 
3547 		node = of_parse_phandle(bank->of_node->parent,
3548 					"rockchip,pmu", 0);
3549 		if (!node) {
3550 			if (of_address_to_resource(bank->of_node, 1, &res)) {
3551 				dev_err(info->dev, "cannot find IO resource for bank\n");
3552 				return -ENOENT;
3553 			}
3554 
3555 			base = devm_ioremap_resource(info->dev, &res);
3556 			if (IS_ERR(base))
3557 				return PTR_ERR(base);
3558 			rockchip_regmap_config.max_register =
3559 						    resource_size(&res) - 4;
3560 			rockchip_regmap_config.name =
3561 					    "rockchip,rk3188-gpio-bank0-pull";
3562 			bank->regmap_pull = devm_regmap_init_mmio(info->dev,
3563 						    base,
3564 						    &rockchip_regmap_config);
3565 		}
3566 		of_node_put(node);
3567 	}
3568 
3569 	bank->irq = irq_of_parse_and_map(bank->of_node, 0);
3570 
3571 	bank->clk = of_clk_get(bank->of_node, 0);
3572 	if (IS_ERR(bank->clk))
3573 		return PTR_ERR(bank->clk);
3574 
3575 	return clk_prepare(bank->clk);
3576 }
3577 
3578 static const struct of_device_id rockchip_pinctrl_dt_match[];
3579 
3580 /* retrieve the soc specific data */
rockchip_pinctrl_get_soc_data(struct rockchip_pinctrl * d,struct platform_device * pdev)3581 static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(
3582 						struct rockchip_pinctrl *d,
3583 						struct platform_device *pdev)
3584 {
3585 	const struct of_device_id *match;
3586 	struct device_node *node = pdev->dev.of_node;
3587 	struct device_node *np;
3588 	struct rockchip_pin_ctrl *ctrl;
3589 	struct rockchip_pin_bank *bank;
3590 	int grf_offs, pmu_offs, drv_grf_offs, drv_pmu_offs, i, j;
3591 
3592 	match = of_match_node(rockchip_pinctrl_dt_match, node);
3593 	ctrl = (struct rockchip_pin_ctrl *)match->data;
3594 
3595 	for_each_child_of_node(node, np) {
3596 		if (!of_find_property(np, "gpio-controller", NULL))
3597 			continue;
3598 
3599 		bank = ctrl->pin_banks;
3600 		for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
3601 			if (!strcmp(bank->name, np->name)) {
3602 				bank->of_node = np;
3603 
3604 				if (!rockchip_get_bank_data(bank, d))
3605 					bank->valid = true;
3606 
3607 				break;
3608 			}
3609 		}
3610 	}
3611 
3612 	grf_offs = ctrl->grf_mux_offset;
3613 	pmu_offs = ctrl->pmu_mux_offset;
3614 	drv_pmu_offs = ctrl->pmu_drv_offset;
3615 	drv_grf_offs = ctrl->grf_drv_offset;
3616 	bank = ctrl->pin_banks;
3617 	for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
3618 		int bank_pins = 0;
3619 
3620 		raw_spin_lock_init(&bank->slock);
3621 		bank->drvdata = d;
3622 		bank->pin_base = ctrl->nr_pins;
3623 		ctrl->nr_pins += bank->nr_pins;
3624 
3625 		/* calculate iomux and drv offsets */
3626 		for (j = 0; j < 4; j++) {
3627 			struct rockchip_iomux *iom = &bank->iomux[j];
3628 			struct rockchip_drv *drv = &bank->drv[j];
3629 			int inc;
3630 
3631 			if (bank_pins >= bank->nr_pins)
3632 				break;
3633 
3634 			/* preset iomux offset value, set new start value */
3635 			if (iom->offset >= 0) {
3636 				if (iom->type & IOMUX_SOURCE_PMU)
3637 					pmu_offs = iom->offset;
3638 				else
3639 					grf_offs = iom->offset;
3640 			} else { /* set current iomux offset */
3641 				iom->offset = (iom->type & IOMUX_SOURCE_PMU) ?
3642 							pmu_offs : grf_offs;
3643 			}
3644 
3645 			/* preset drv offset value, set new start value */
3646 			if (drv->offset >= 0) {
3647 				if (iom->type & IOMUX_SOURCE_PMU)
3648 					drv_pmu_offs = drv->offset;
3649 				else
3650 					drv_grf_offs = drv->offset;
3651 			} else { /* set current drv offset */
3652 				drv->offset = (iom->type & IOMUX_SOURCE_PMU) ?
3653 						drv_pmu_offs : drv_grf_offs;
3654 			}
3655 
3656 			dev_dbg(d->dev, "bank %d, iomux %d has iom_offset 0x%x drv_offset 0x%x\n",
3657 				i, j, iom->offset, drv->offset);
3658 
3659 			/*
3660 			 * Increase offset according to iomux width.
3661 			 * 4bit iomux'es are spread over two registers.
3662 			 */
3663 			inc = (iom->type & (IOMUX_WIDTH_4BIT |
3664 					    IOMUX_WIDTH_3BIT |
3665 					    IOMUX_WIDTH_2BIT)) ? 8 : 4;
3666 			if (iom->type & IOMUX_SOURCE_PMU)
3667 				pmu_offs += inc;
3668 			else
3669 				grf_offs += inc;
3670 
3671 			/*
3672 			 * Increase offset according to drv width.
3673 			 * 3bit drive-strenth'es are spread over two registers.
3674 			 */
3675 			if ((drv->drv_type == DRV_TYPE_IO_1V8_3V0_AUTO) ||
3676 			    (drv->drv_type == DRV_TYPE_IO_3V3_ONLY))
3677 				inc = 8;
3678 			else
3679 				inc = 4;
3680 
3681 			if (iom->type & IOMUX_SOURCE_PMU)
3682 				drv_pmu_offs += inc;
3683 			else
3684 				drv_grf_offs += inc;
3685 
3686 			bank_pins += 8;
3687 		}
3688 
3689 		/* calculate the per-bank recalced_mask */
3690 		for (j = 0; j < ctrl->niomux_recalced; j++) {
3691 			int pin = 0;
3692 
3693 			if (ctrl->iomux_recalced[j].num == bank->bank_num) {
3694 				pin = ctrl->iomux_recalced[j].pin;
3695 				bank->recalced_mask |= BIT(pin);
3696 			}
3697 		}
3698 
3699 		/* calculate the per-bank route_mask */
3700 		for (j = 0; j < ctrl->niomux_routes; j++) {
3701 			int pin = 0;
3702 
3703 			if (ctrl->iomux_routes[j].bank_num == bank->bank_num) {
3704 				pin = ctrl->iomux_routes[j].pin;
3705 				bank->route_mask |= BIT(pin);
3706 			}
3707 		}
3708 	}
3709 
3710 	return ctrl;
3711 }
3712 
3713 #define RK3288_GRF_GPIO6C_IOMUX		0x64
3714 #define GPIO6C6_SEL_WRITE_ENABLE	BIT(28)
3715 
3716 static u32 rk3288_grf_gpio6c_iomux;
3717 
rockchip_pinctrl_suspend(struct device * dev)3718 static int __maybe_unused rockchip_pinctrl_suspend(struct device *dev)
3719 {
3720 	struct rockchip_pinctrl *info = dev_get_drvdata(dev);
3721 	int ret = pinctrl_force_sleep(info->pctl_dev);
3722 
3723 	if (ret)
3724 		return ret;
3725 
3726 	/*
3727 	 * RK3288 GPIO6_C6 mux would be modified by Maskrom when resume, so save
3728 	 * the setting here, and restore it at resume.
3729 	 */
3730 	if (info->ctrl->type == RK3288) {
3731 		ret = regmap_read(info->regmap_base, RK3288_GRF_GPIO6C_IOMUX,
3732 				  &rk3288_grf_gpio6c_iomux);
3733 		if (ret) {
3734 			pinctrl_force_default(info->pctl_dev);
3735 			return ret;
3736 		}
3737 	}
3738 
3739 	return 0;
3740 }
3741 
rockchip_pinctrl_resume(struct device * dev)3742 static int __maybe_unused rockchip_pinctrl_resume(struct device *dev)
3743 {
3744 	struct rockchip_pinctrl *info = dev_get_drvdata(dev);
3745 	int ret;
3746 
3747 	if (info->ctrl->type == RK3288) {
3748 		ret = regmap_write(info->regmap_base, RK3288_GRF_GPIO6C_IOMUX,
3749 				   rk3288_grf_gpio6c_iomux |
3750 				   GPIO6C6_SEL_WRITE_ENABLE);
3751 		if (ret)
3752 			return ret;
3753 	}
3754 
3755 	return pinctrl_force_default(info->pctl_dev);
3756 }
3757 
3758 static SIMPLE_DEV_PM_OPS(rockchip_pinctrl_dev_pm_ops, rockchip_pinctrl_suspend,
3759 			 rockchip_pinctrl_resume);
3760 
rockchip_pinctrl_probe(struct platform_device * pdev)3761 static int rockchip_pinctrl_probe(struct platform_device *pdev)
3762 {
3763 	struct rockchip_pinctrl *info;
3764 	struct device *dev = &pdev->dev;
3765 	struct rockchip_pin_ctrl *ctrl;
3766 	struct device_node *np = pdev->dev.of_node, *node;
3767 	struct resource *res;
3768 	void __iomem *base;
3769 	int ret;
3770 
3771 	if (!dev->of_node) {
3772 		dev_err(dev, "device tree node not found\n");
3773 		return -ENODEV;
3774 	}
3775 
3776 	info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
3777 	if (!info)
3778 		return -ENOMEM;
3779 
3780 	info->dev = dev;
3781 
3782 	ctrl = rockchip_pinctrl_get_soc_data(info, pdev);
3783 	if (!ctrl) {
3784 		dev_err(dev, "driver data not available\n");
3785 		return -EINVAL;
3786 	}
3787 	info->ctrl = ctrl;
3788 
3789 	node = of_parse_phandle(np, "rockchip,grf", 0);
3790 	if (node) {
3791 		info->regmap_base = syscon_node_to_regmap(node);
3792 		of_node_put(node);
3793 		if (IS_ERR(info->regmap_base))
3794 			return PTR_ERR(info->regmap_base);
3795 	} else {
3796 		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
3797 		base = devm_ioremap_resource(&pdev->dev, res);
3798 		if (IS_ERR(base))
3799 			return PTR_ERR(base);
3800 
3801 		rockchip_regmap_config.max_register = resource_size(res) - 4;
3802 		rockchip_regmap_config.name = "rockchip,pinctrl";
3803 		info->regmap_base = devm_regmap_init_mmio(&pdev->dev, base,
3804 						    &rockchip_regmap_config);
3805 
3806 		/* to check for the old dt-bindings */
3807 		info->reg_size = resource_size(res);
3808 
3809 		/* Honor the old binding, with pull registers as 2nd resource */
3810 		if (ctrl->type == RK3188 && info->reg_size < 0x200) {
3811 			res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
3812 			base = devm_ioremap_resource(&pdev->dev, res);
3813 			if (IS_ERR(base))
3814 				return PTR_ERR(base);
3815 
3816 			rockchip_regmap_config.max_register =
3817 							resource_size(res) - 4;
3818 			rockchip_regmap_config.name = "rockchip,pinctrl-pull";
3819 			info->regmap_pull = devm_regmap_init_mmio(&pdev->dev,
3820 						    base,
3821 						    &rockchip_regmap_config);
3822 		}
3823 	}
3824 
3825 	/* try to find the optional reference to the pmu syscon */
3826 	node = of_parse_phandle(np, "rockchip,pmu", 0);
3827 	if (node) {
3828 		info->regmap_pmu = syscon_node_to_regmap(node);
3829 		of_node_put(node);
3830 		if (IS_ERR(info->regmap_pmu))
3831 			return PTR_ERR(info->regmap_pmu);
3832 	}
3833 
3834 	ret = rockchip_gpiolib_register(pdev, info);
3835 	if (ret)
3836 		return ret;
3837 
3838 	ret = rockchip_pinctrl_register(pdev, info);
3839 	if (ret) {
3840 		rockchip_gpiolib_unregister(pdev, info);
3841 		return ret;
3842 	}
3843 
3844 	platform_set_drvdata(pdev, info);
3845 
3846 	return 0;
3847 }
3848 
3849 static struct rockchip_pin_bank px30_pin_banks[] = {
3850 	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
3851 					     IOMUX_SOURCE_PMU,
3852 					     IOMUX_SOURCE_PMU,
3853 					     IOMUX_SOURCE_PMU
3854 			    ),
3855 	PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_WIDTH_4BIT,
3856 					     IOMUX_WIDTH_4BIT,
3857 					     IOMUX_WIDTH_4BIT,
3858 					     IOMUX_WIDTH_4BIT
3859 			    ),
3860 	PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", IOMUX_WIDTH_4BIT,
3861 					     IOMUX_WIDTH_4BIT,
3862 					     IOMUX_WIDTH_4BIT,
3863 					     IOMUX_WIDTH_4BIT
3864 			    ),
3865 	PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", IOMUX_WIDTH_4BIT,
3866 					     IOMUX_WIDTH_4BIT,
3867 					     IOMUX_WIDTH_4BIT,
3868 					     IOMUX_WIDTH_4BIT
3869 			    ),
3870 };
3871 
3872 static struct rockchip_pin_ctrl px30_pin_ctrl = {
3873 		.pin_banks		= px30_pin_banks,
3874 		.nr_banks		= ARRAY_SIZE(px30_pin_banks),
3875 		.label			= "PX30-GPIO",
3876 		.type			= PX30,
3877 		.grf_mux_offset		= 0x0,
3878 		.pmu_mux_offset		= 0x0,
3879 		.iomux_routes		= px30_mux_route_data,
3880 		.niomux_routes		= ARRAY_SIZE(px30_mux_route_data),
3881 		.pull_calc_reg		= px30_calc_pull_reg_and_bit,
3882 		.drv_calc_reg		= px30_calc_drv_reg_and_bit,
3883 		.schmitt_calc_reg	= px30_calc_schmitt_reg_and_bit,
3884 };
3885 
3886 static struct rockchip_pin_bank rv1108_pin_banks[] = {
3887 	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
3888 					     IOMUX_SOURCE_PMU,
3889 					     IOMUX_SOURCE_PMU,
3890 					     IOMUX_SOURCE_PMU),
3891 	PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
3892 	PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, 0),
3893 	PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, 0),
3894 };
3895 
3896 static struct rockchip_pin_ctrl rv1108_pin_ctrl = {
3897 	.pin_banks		= rv1108_pin_banks,
3898 	.nr_banks		= ARRAY_SIZE(rv1108_pin_banks),
3899 	.label			= "RV1108-GPIO",
3900 	.type			= RV1108,
3901 	.grf_mux_offset		= 0x10,
3902 	.pmu_mux_offset		= 0x0,
3903 	.iomux_recalced		= rv1108_mux_recalced_data,
3904 	.niomux_recalced	= ARRAY_SIZE(rv1108_mux_recalced_data),
3905 	.pull_calc_reg		= rv1108_calc_pull_reg_and_bit,
3906 	.drv_calc_reg		= rv1108_calc_drv_reg_and_bit,
3907 	.schmitt_calc_reg	= rv1108_calc_schmitt_reg_and_bit,
3908 };
3909 
3910 static struct rockchip_pin_bank rk2928_pin_banks[] = {
3911 	PIN_BANK(0, 32, "gpio0"),
3912 	PIN_BANK(1, 32, "gpio1"),
3913 	PIN_BANK(2, 32, "gpio2"),
3914 	PIN_BANK(3, 32, "gpio3"),
3915 };
3916 
3917 static struct rockchip_pin_ctrl rk2928_pin_ctrl = {
3918 		.pin_banks		= rk2928_pin_banks,
3919 		.nr_banks		= ARRAY_SIZE(rk2928_pin_banks),
3920 		.label			= "RK2928-GPIO",
3921 		.type			= RK2928,
3922 		.grf_mux_offset		= 0xa8,
3923 		.pull_calc_reg		= rk2928_calc_pull_reg_and_bit,
3924 };
3925 
3926 static struct rockchip_pin_bank rk3036_pin_banks[] = {
3927 	PIN_BANK(0, 32, "gpio0"),
3928 	PIN_BANK(1, 32, "gpio1"),
3929 	PIN_BANK(2, 32, "gpio2"),
3930 };
3931 
3932 static struct rockchip_pin_ctrl rk3036_pin_ctrl = {
3933 		.pin_banks		= rk3036_pin_banks,
3934 		.nr_banks		= ARRAY_SIZE(rk3036_pin_banks),
3935 		.label			= "RK3036-GPIO",
3936 		.type			= RK2928,
3937 		.grf_mux_offset		= 0xa8,
3938 		.pull_calc_reg		= rk2928_calc_pull_reg_and_bit,
3939 };
3940 
3941 static struct rockchip_pin_bank rk3066a_pin_banks[] = {
3942 	PIN_BANK(0, 32, "gpio0"),
3943 	PIN_BANK(1, 32, "gpio1"),
3944 	PIN_BANK(2, 32, "gpio2"),
3945 	PIN_BANK(3, 32, "gpio3"),
3946 	PIN_BANK(4, 32, "gpio4"),
3947 	PIN_BANK(6, 16, "gpio6"),
3948 };
3949 
3950 static struct rockchip_pin_ctrl rk3066a_pin_ctrl = {
3951 		.pin_banks		= rk3066a_pin_banks,
3952 		.nr_banks		= ARRAY_SIZE(rk3066a_pin_banks),
3953 		.label			= "RK3066a-GPIO",
3954 		.type			= RK2928,
3955 		.grf_mux_offset		= 0xa8,
3956 		.pull_calc_reg		= rk2928_calc_pull_reg_and_bit,
3957 };
3958 
3959 static struct rockchip_pin_bank rk3066b_pin_banks[] = {
3960 	PIN_BANK(0, 32, "gpio0"),
3961 	PIN_BANK(1, 32, "gpio1"),
3962 	PIN_BANK(2, 32, "gpio2"),
3963 	PIN_BANK(3, 32, "gpio3"),
3964 };
3965 
3966 static struct rockchip_pin_ctrl rk3066b_pin_ctrl = {
3967 		.pin_banks	= rk3066b_pin_banks,
3968 		.nr_banks	= ARRAY_SIZE(rk3066b_pin_banks),
3969 		.label		= "RK3066b-GPIO",
3970 		.type		= RK3066B,
3971 		.grf_mux_offset	= 0x60,
3972 };
3973 
3974 static struct rockchip_pin_bank rk3128_pin_banks[] = {
3975 	PIN_BANK(0, 32, "gpio0"),
3976 	PIN_BANK(1, 32, "gpio1"),
3977 	PIN_BANK(2, 32, "gpio2"),
3978 	PIN_BANK(3, 32, "gpio3"),
3979 };
3980 
3981 static struct rockchip_pin_ctrl rk3128_pin_ctrl = {
3982 		.pin_banks		= rk3128_pin_banks,
3983 		.nr_banks		= ARRAY_SIZE(rk3128_pin_banks),
3984 		.label			= "RK3128-GPIO",
3985 		.type			= RK3128,
3986 		.grf_mux_offset		= 0xa8,
3987 		.iomux_recalced		= rk3128_mux_recalced_data,
3988 		.niomux_recalced	= ARRAY_SIZE(rk3128_mux_recalced_data),
3989 		.iomux_routes		= rk3128_mux_route_data,
3990 		.niomux_routes		= ARRAY_SIZE(rk3128_mux_route_data),
3991 		.pull_calc_reg		= rk3128_calc_pull_reg_and_bit,
3992 };
3993 
3994 static struct rockchip_pin_bank rk3188_pin_banks[] = {
3995 	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_GPIO_ONLY, 0, 0, 0),
3996 	PIN_BANK(1, 32, "gpio1"),
3997 	PIN_BANK(2, 32, "gpio2"),
3998 	PIN_BANK(3, 32, "gpio3"),
3999 };
4000 
4001 static struct rockchip_pin_ctrl rk3188_pin_ctrl = {
4002 		.pin_banks		= rk3188_pin_banks,
4003 		.nr_banks		= ARRAY_SIZE(rk3188_pin_banks),
4004 		.label			= "RK3188-GPIO",
4005 		.type			= RK3188,
4006 		.grf_mux_offset		= 0x60,
4007 		.iomux_routes		= rk3188_mux_route_data,
4008 		.niomux_routes		= ARRAY_SIZE(rk3188_mux_route_data),
4009 		.pull_calc_reg		= rk3188_calc_pull_reg_and_bit,
4010 };
4011 
4012 static struct rockchip_pin_bank rk3228_pin_banks[] = {
4013 	PIN_BANK(0, 32, "gpio0"),
4014 	PIN_BANK(1, 32, "gpio1"),
4015 	PIN_BANK(2, 32, "gpio2"),
4016 	PIN_BANK(3, 32, "gpio3"),
4017 };
4018 
4019 static struct rockchip_pin_ctrl rk3228_pin_ctrl = {
4020 		.pin_banks		= rk3228_pin_banks,
4021 		.nr_banks		= ARRAY_SIZE(rk3228_pin_banks),
4022 		.label			= "RK3228-GPIO",
4023 		.type			= RK3288,
4024 		.grf_mux_offset		= 0x0,
4025 		.iomux_routes		= rk3228_mux_route_data,
4026 		.niomux_routes		= ARRAY_SIZE(rk3228_mux_route_data),
4027 		.pull_calc_reg		= rk3228_calc_pull_reg_and_bit,
4028 		.drv_calc_reg		= rk3228_calc_drv_reg_and_bit,
4029 };
4030 
4031 static struct rockchip_pin_bank rk3288_pin_banks[] = {
4032 	PIN_BANK_IOMUX_FLAGS(0, 24, "gpio0", IOMUX_SOURCE_PMU,
4033 					     IOMUX_SOURCE_PMU,
4034 					     IOMUX_SOURCE_PMU,
4035 					     IOMUX_UNROUTED
4036 			    ),
4037 	PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_UNROUTED,
4038 					     IOMUX_UNROUTED,
4039 					     IOMUX_UNROUTED,
4040 					     0
4041 			    ),
4042 	PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, IOMUX_UNROUTED),
4043 	PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, IOMUX_WIDTH_4BIT),
4044 	PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4", IOMUX_WIDTH_4BIT,
4045 					     IOMUX_WIDTH_4BIT,
4046 					     0,
4047 					     0
4048 			    ),
4049 	PIN_BANK_IOMUX_FLAGS(5, 32, "gpio5", IOMUX_UNROUTED,
4050 					     0,
4051 					     0,
4052 					     IOMUX_UNROUTED
4053 			    ),
4054 	PIN_BANK_IOMUX_FLAGS(6, 32, "gpio6", 0, 0, 0, IOMUX_UNROUTED),
4055 	PIN_BANK_IOMUX_FLAGS(7, 32, "gpio7", 0,
4056 					     0,
4057 					     IOMUX_WIDTH_4BIT,
4058 					     IOMUX_UNROUTED
4059 			    ),
4060 	PIN_BANK(8, 16, "gpio8"),
4061 };
4062 
4063 static struct rockchip_pin_ctrl rk3288_pin_ctrl = {
4064 		.pin_banks		= rk3288_pin_banks,
4065 		.nr_banks		= ARRAY_SIZE(rk3288_pin_banks),
4066 		.label			= "RK3288-GPIO",
4067 		.type			= RK3288,
4068 		.grf_mux_offset		= 0x0,
4069 		.pmu_mux_offset		= 0x84,
4070 		.iomux_routes		= rk3288_mux_route_data,
4071 		.niomux_routes		= ARRAY_SIZE(rk3288_mux_route_data),
4072 		.pull_calc_reg		= rk3288_calc_pull_reg_and_bit,
4073 		.drv_calc_reg		= rk3288_calc_drv_reg_and_bit,
4074 };
4075 
4076 static struct rockchip_pin_bank rk3308_pin_banks[] = {
4077 	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_WIDTH_2BIT,
4078 					     IOMUX_WIDTH_2BIT,
4079 					     IOMUX_WIDTH_2BIT,
4080 					     IOMUX_WIDTH_2BIT),
4081 	PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_WIDTH_2BIT,
4082 					     IOMUX_WIDTH_2BIT,
4083 					     IOMUX_WIDTH_2BIT,
4084 					     IOMUX_WIDTH_2BIT),
4085 	PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", IOMUX_WIDTH_2BIT,
4086 					     IOMUX_WIDTH_2BIT,
4087 					     IOMUX_WIDTH_2BIT,
4088 					     IOMUX_WIDTH_2BIT),
4089 	PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", IOMUX_WIDTH_2BIT,
4090 					     IOMUX_WIDTH_2BIT,
4091 					     IOMUX_WIDTH_2BIT,
4092 					     IOMUX_WIDTH_2BIT),
4093 	PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4", IOMUX_WIDTH_2BIT,
4094 					     IOMUX_WIDTH_2BIT,
4095 					     IOMUX_WIDTH_2BIT,
4096 					     IOMUX_WIDTH_2BIT),
4097 };
4098 
4099 static struct rockchip_pin_ctrl rk3308_pin_ctrl = {
4100 		.pin_banks		= rk3308_pin_banks,
4101 		.nr_banks		= ARRAY_SIZE(rk3308_pin_banks),
4102 		.label			= "RK3308-GPIO",
4103 		.type			= RK3308,
4104 		.grf_mux_offset		= 0x0,
4105 		.iomux_recalced		= rk3308_mux_recalced_data,
4106 		.niomux_recalced	= ARRAY_SIZE(rk3308_mux_recalced_data),
4107 		.iomux_routes		= rk3308_mux_route_data,
4108 		.niomux_routes		= ARRAY_SIZE(rk3308_mux_route_data),
4109 		.pull_calc_reg		= rk3308_calc_pull_reg_and_bit,
4110 		.drv_calc_reg		= rk3308_calc_drv_reg_and_bit,
4111 		.schmitt_calc_reg	= rk3308_calc_schmitt_reg_and_bit,
4112 };
4113 
4114 static struct rockchip_pin_bank rk3328_pin_banks[] = {
4115 	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0),
4116 	PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
4117 	PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0,
4118 			     IOMUX_WIDTH_3BIT,
4119 			     IOMUX_WIDTH_3BIT,
4120 			     0),
4121 	PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",
4122 			     IOMUX_WIDTH_3BIT,
4123 			     IOMUX_WIDTH_3BIT,
4124 			     0,
4125 			     0),
4126 };
4127 
4128 static struct rockchip_pin_ctrl rk3328_pin_ctrl = {
4129 		.pin_banks		= rk3328_pin_banks,
4130 		.nr_banks		= ARRAY_SIZE(rk3328_pin_banks),
4131 		.label			= "RK3328-GPIO",
4132 		.type			= RK3288,
4133 		.grf_mux_offset		= 0x0,
4134 		.iomux_recalced		= rk3328_mux_recalced_data,
4135 		.niomux_recalced	= ARRAY_SIZE(rk3328_mux_recalced_data),
4136 		.iomux_routes		= rk3328_mux_route_data,
4137 		.niomux_routes		= ARRAY_SIZE(rk3328_mux_route_data),
4138 		.pull_calc_reg		= rk3228_calc_pull_reg_and_bit,
4139 		.drv_calc_reg		= rk3228_calc_drv_reg_and_bit,
4140 		.schmitt_calc_reg	= rk3328_calc_schmitt_reg_and_bit,
4141 };
4142 
4143 static struct rockchip_pin_bank rk3368_pin_banks[] = {
4144 	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
4145 					     IOMUX_SOURCE_PMU,
4146 					     IOMUX_SOURCE_PMU,
4147 					     IOMUX_SOURCE_PMU
4148 			    ),
4149 	PIN_BANK(1, 32, "gpio1"),
4150 	PIN_BANK(2, 32, "gpio2"),
4151 	PIN_BANK(3, 32, "gpio3"),
4152 };
4153 
4154 static struct rockchip_pin_ctrl rk3368_pin_ctrl = {
4155 		.pin_banks		= rk3368_pin_banks,
4156 		.nr_banks		= ARRAY_SIZE(rk3368_pin_banks),
4157 		.label			= "RK3368-GPIO",
4158 		.type			= RK3368,
4159 		.grf_mux_offset		= 0x0,
4160 		.pmu_mux_offset		= 0x0,
4161 		.pull_calc_reg		= rk3368_calc_pull_reg_and_bit,
4162 		.drv_calc_reg		= rk3368_calc_drv_reg_and_bit,
4163 };
4164 
4165 static struct rockchip_pin_bank rk3399_pin_banks[] = {
4166 	PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET_PULL_FLAGS(0, 32, "gpio0",
4167 							 IOMUX_SOURCE_PMU,
4168 							 IOMUX_SOURCE_PMU,
4169 							 IOMUX_SOURCE_PMU,
4170 							 IOMUX_SOURCE_PMU,
4171 							 DRV_TYPE_IO_1V8_ONLY,
4172 							 DRV_TYPE_IO_1V8_ONLY,
4173 							 DRV_TYPE_IO_DEFAULT,
4174 							 DRV_TYPE_IO_DEFAULT,
4175 							 0x80,
4176 							 0x88,
4177 							 -1,
4178 							 -1,
4179 							 PULL_TYPE_IO_1V8_ONLY,
4180 							 PULL_TYPE_IO_1V8_ONLY,
4181 							 PULL_TYPE_IO_DEFAULT,
4182 							 PULL_TYPE_IO_DEFAULT
4183 							),
4184 	PIN_BANK_IOMUX_DRV_FLAGS_OFFSET(1, 32, "gpio1", IOMUX_SOURCE_PMU,
4185 					IOMUX_SOURCE_PMU,
4186 					IOMUX_SOURCE_PMU,
4187 					IOMUX_SOURCE_PMU,
4188 					DRV_TYPE_IO_1V8_OR_3V0,
4189 					DRV_TYPE_IO_1V8_OR_3V0,
4190 					DRV_TYPE_IO_1V8_OR_3V0,
4191 					DRV_TYPE_IO_1V8_OR_3V0,
4192 					0xa0,
4193 					0xa8,
4194 					0xb0,
4195 					0xb8
4196 					),
4197 	PIN_BANK_DRV_FLAGS_PULL_FLAGS(2, 32, "gpio2", DRV_TYPE_IO_1V8_OR_3V0,
4198 				      DRV_TYPE_IO_1V8_OR_3V0,
4199 				      DRV_TYPE_IO_1V8_ONLY,
4200 				      DRV_TYPE_IO_1V8_ONLY,
4201 				      PULL_TYPE_IO_DEFAULT,
4202 				      PULL_TYPE_IO_DEFAULT,
4203 				      PULL_TYPE_IO_1V8_ONLY,
4204 				      PULL_TYPE_IO_1V8_ONLY
4205 				      ),
4206 	PIN_BANK_DRV_FLAGS(3, 32, "gpio3", DRV_TYPE_IO_3V3_ONLY,
4207 			   DRV_TYPE_IO_3V3_ONLY,
4208 			   DRV_TYPE_IO_3V3_ONLY,
4209 			   DRV_TYPE_IO_1V8_OR_3V0
4210 			   ),
4211 	PIN_BANK_DRV_FLAGS(4, 32, "gpio4", DRV_TYPE_IO_1V8_OR_3V0,
4212 			   DRV_TYPE_IO_1V8_3V0_AUTO,
4213 			   DRV_TYPE_IO_1V8_OR_3V0,
4214 			   DRV_TYPE_IO_1V8_OR_3V0
4215 			   ),
4216 };
4217 
4218 static struct rockchip_pin_ctrl rk3399_pin_ctrl = {
4219 		.pin_banks		= rk3399_pin_banks,
4220 		.nr_banks		= ARRAY_SIZE(rk3399_pin_banks),
4221 		.label			= "RK3399-GPIO",
4222 		.type			= RK3399,
4223 		.grf_mux_offset		= 0xe000,
4224 		.pmu_mux_offset		= 0x0,
4225 		.grf_drv_offset		= 0xe100,
4226 		.pmu_drv_offset		= 0x80,
4227 		.iomux_routes		= rk3399_mux_route_data,
4228 		.niomux_routes		= ARRAY_SIZE(rk3399_mux_route_data),
4229 		.pull_calc_reg		= rk3399_calc_pull_reg_and_bit,
4230 		.drv_calc_reg		= rk3399_calc_drv_reg_and_bit,
4231 };
4232 
4233 static const struct of_device_id rockchip_pinctrl_dt_match[] = {
4234 	{ .compatible = "rockchip,px30-pinctrl",
4235 		.data = &px30_pin_ctrl },
4236 	{ .compatible = "rockchip,rv1108-pinctrl",
4237 		.data = &rv1108_pin_ctrl },
4238 	{ .compatible = "rockchip,rk2928-pinctrl",
4239 		.data = &rk2928_pin_ctrl },
4240 	{ .compatible = "rockchip,rk3036-pinctrl",
4241 		.data = &rk3036_pin_ctrl },
4242 	{ .compatible = "rockchip,rk3066a-pinctrl",
4243 		.data = &rk3066a_pin_ctrl },
4244 	{ .compatible = "rockchip,rk3066b-pinctrl",
4245 		.data = &rk3066b_pin_ctrl },
4246 	{ .compatible = "rockchip,rk3128-pinctrl",
4247 		.data = (void *)&rk3128_pin_ctrl },
4248 	{ .compatible = "rockchip,rk3188-pinctrl",
4249 		.data = &rk3188_pin_ctrl },
4250 	{ .compatible = "rockchip,rk3228-pinctrl",
4251 		.data = &rk3228_pin_ctrl },
4252 	{ .compatible = "rockchip,rk3288-pinctrl",
4253 		.data = &rk3288_pin_ctrl },
4254 	{ .compatible = "rockchip,rk3308-pinctrl",
4255 		.data = &rk3308_pin_ctrl },
4256 	{ .compatible = "rockchip,rk3328-pinctrl",
4257 		.data = &rk3328_pin_ctrl },
4258 	{ .compatible = "rockchip,rk3368-pinctrl",
4259 		.data = &rk3368_pin_ctrl },
4260 	{ .compatible = "rockchip,rk3399-pinctrl",
4261 		.data = &rk3399_pin_ctrl },
4262 	{},
4263 };
4264 
4265 static struct platform_driver rockchip_pinctrl_driver = {
4266 	.probe		= rockchip_pinctrl_probe,
4267 	.driver = {
4268 		.name	= "rockchip-pinctrl",
4269 		.pm = &rockchip_pinctrl_dev_pm_ops,
4270 		.of_match_table = rockchip_pinctrl_dt_match,
4271 	},
4272 };
4273 
rockchip_pinctrl_drv_register(void)4274 static int __init rockchip_pinctrl_drv_register(void)
4275 {
4276 	return platform_driver_register(&rockchip_pinctrl_driver);
4277 }
4278 postcore_initcall(rockchip_pinctrl_drv_register);
4279