1 // SPDX-License-Identifier: GPL-2.0-only
25 #include <linux/pinctrl/pinconf-generic.h>
31 #include "pinctrl-intel.h"
32 #include "pinctrl-tangier.h"
65 #define pin_to_bufno(f, p)		((p) - (f)->pin_base)
73 	for (i = 0; i < tp->nfamilies; i++) {  in tng_get_family()
74 		family = &tp->families[i];  in tng_get_family()
75 		if (pin >= family->pin_base &&  in tng_get_family()
76 		    pin < family->pin_base + family->npins)  in tng_get_family()
80 	dev_warn(tp->dev, "failed to find family for pin %u\n", pin);  in tng_get_family()
92 	return !family->protected;  in tng_buf_available()
105 	return family->regs + BUFCFG_OFFSET + bufno * 4;  in tng_get_bufcfg()
113 		return -EBUSY;  in tng_read_bufcfg()
138 	return tp->ngroups;  in tng_get_groups_count()
146 	return tp->groups[group].grp.name;  in tng_get_group_name()
154 	*pins = tp->groups[group].grp.pins;  in tng_get_group_pins()
155 	*npins = tp->groups[group].grp.npins;  in tng_get_group_pins()
192 	return tp->nfunctions;  in tng_get_functions_count()
200 	return tp->functions[function].func.name;  in tng_get_function_name()
210 	*groups = tp->functions[function].func.groups;  in tng_get_function_groups()
211 	*ngroups = tp->functions[function].func.ngroups;  in tng_get_function_groups()
220 	const struct intel_pingroup *grp = &tp->groups[group];  in tng_pinmux_set_mux()
221 	u32 bits = grp->mode << BUFCFG_PINMODE_SHIFT;  in tng_pinmux_set_mux()
223 	unsigned long flags;  in tng_pinmux_set_mux()
230 	for (i = 0; i < grp->grp.npins; i++) {  in tng_pinmux_set_mux()
231 		if (!tng_buf_available(tp, grp->grp.pins[i]))  in tng_pinmux_set_mux()
232 			return -EBUSY;  in tng_pinmux_set_mux()
236 	raw_spin_lock_irqsave(&tp->lock, flags);  in tng_pinmux_set_mux()
237 	for (i = 0; i < grp->grp.npins; i++)  in tng_pinmux_set_mux()
238 		tng_update_bufcfg(tp, grp->grp.pins[i], bits, mask);  in tng_pinmux_set_mux()
239 	raw_spin_unlock_irqrestore(&tp->lock, flags);  in tng_pinmux_set_mux()
251 	unsigned long flags;  in tng_gpio_request_enable()
254 		return -EBUSY;  in tng_gpio_request_enable()
256 	raw_spin_lock_irqsave(&tp->lock, flags);  in tng_gpio_request_enable()
258 	raw_spin_unlock_irqrestore(&tp->lock, flags);  in tng_gpio_request_enable()
272 			  unsigned long *config)  in tng_config_get()
276 	u32 value, term;  in tng_config_get()  local
282 		return -ENOTSUPP;  in tng_config_get()
284 	term = (value & BUFCFG_PUPD_VAL_MASK) >> BUFCFG_PUPD_VAL_SHIFT;  in tng_config_get()
289 			return -EINVAL;  in tng_config_get()
294 			return -EINVAL;  in tng_config_get()
296 		switch (term) {  in tng_config_get()
315 			return -EINVAL;  in tng_config_get()
317 		switch (term) {  in tng_config_get()
336 			return -EINVAL;  in tng_config_get()
341 			return -EINVAL;  in tng_config_get()
350 		return -ENOTSUPP;  in tng_config_get()
358 			      unsigned long config)  in tng_config_set_pin()
362 	u32 mask, term, value = 0;  in tng_config_set_pin()  local
363 	unsigned long flags;  in tng_config_set_pin()
377 			term = BUFCFG_PUPD_VAL_50K;  in tng_config_set_pin()
380 			term = BUFCFG_PUPD_VAL_20K;  in tng_config_set_pin()
383 			term = BUFCFG_PUPD_VAL_2K;  in tng_config_set_pin()
386 			return -EINVAL;  in tng_config_set_pin()
390 		value = BUFCFG_PU_EN | (term << BUFCFG_PUPD_VAL_SHIFT);  in tng_config_set_pin()
400 			term = BUFCFG_PUPD_VAL_50K;  in tng_config_set_pin()
403 			term = BUFCFG_PUPD_VAL_20K;  in tng_config_set_pin()
406 			term = BUFCFG_PUPD_VAL_2K;  in tng_config_set_pin()
409 			return -EINVAL;  in tng_config_set_pin()
413 		value = BUFCFG_PD_EN | (term << BUFCFG_PUPD_VAL_SHIFT);  in tng_config_set_pin()
432 		return -EINVAL;  in tng_config_set_pin()
435 	raw_spin_lock_irqsave(&tp->lock, flags);  in tng_config_set_pin()
437 	raw_spin_unlock_irqrestore(&tp->lock, flags);  in tng_config_set_pin()
443 			  unsigned long *configs, unsigned int nconfigs)  in tng_config_set()
450 		return -ENOTSUPP;  in tng_config_set()
466 			return -ENOTSUPP;  in tng_config_set()
474 				unsigned int group, unsigned long *config)  in tng_config_group_get()
488 				unsigned int group, unsigned long *configs,  in tng_config_group_set()
526 	struct device *dev = &pdev->dev;  in tng_pinctrl_probe()
535 		return -ENOMEM;  in tng_pinctrl_probe()
537 	tp->dev = dev;  in tng_pinctrl_probe()
538 	raw_spin_lock_init(&tp->lock);  in tng_pinctrl_probe()
548 	families_len = size_mul(sizeof(*families), tp->nfamilies);  in tng_pinctrl_probe()
549 	families = devm_kmemdup(dev, tp->families, families_len, GFP_KERNEL);  in tng_pinctrl_probe()
551 		return -ENOMEM;  in tng_pinctrl_probe()
554 	for (i = 0; i < tp->nfamilies; i++) {  in tng_pinctrl_probe()
557 		family->regs = regs + family->barno * TNG_FAMILY_LEN;  in tng_pinctrl_probe()
560 	tp->families = families;  in tng_pinctrl_probe()
561 	tp->pctldesc = tng_pinctrl_desc;  in tng_pinctrl_probe()
562 	tp->pctldesc.name = dev_name(dev);  in tng_pinctrl_probe()
563 	tp->pctldesc.pins = tp->pins;  in tng_pinctrl_probe()
564 	tp->pctldesc.npins = tp->npins;  in tng_pinctrl_probe()
566 	tp->pctldev = devm_pinctrl_register(dev, &tp->pctldesc, tp);  in tng_pinctrl_probe()
567 	if (IS_ERR(tp->pctldev))  in tng_pinctrl_probe()
568 		return dev_err_probe(dev, PTR_ERR(tp->pctldev),  in tng_pinctrl_probe()
578 	data = device_get_match_data(&pdev->dev);  in devm_tng_pinctrl_probe()
580 		return -ENODATA;  in devm_tng_pinctrl_probe()