1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Common code for Palm LD, T5, TX, Z72
4 *
5 * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
6 */
7
8 #include <linux/platform_device.h>
9 #include <linux/delay.h>
10 #include <linux/irq.h>
11 #include <linux/gpio_keys.h>
12 #include <linux/input.h>
13 #include <linux/pda_power.h>
14 #include <linux/pwm.h>
15 #include <linux/pwm_backlight.h>
16 #include <linux/gpio.h>
17 #include <linux/wm97xx.h>
18 #include <linux/power_supply.h>
19 #include <linux/usb/gpio_vbus.h>
20 #include <linux/regulator/max1586.h>
21 #include <linux/platform_data/i2c-pxa.h>
22
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26
27 #include "pxa27x.h"
28 #include <mach/audio.h>
29 #include <linux/platform_data/mmc-pxamci.h>
30 #include <linux/platform_data/video-pxafb.h>
31 #include <linux/platform_data/irda-pxaficp.h>
32 #include "udc.h"
33 #include <linux/platform_data/asoc-palm27x.h>
34 #include "palm27x.h"
35
36 #include "generic.h"
37 #include "devices.h"
38
39 /******************************************************************************
40 * SD/MMC card controller
41 ******************************************************************************/
42 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
43 static struct pxamci_platform_data palm27x_mci_platform_data = {
44 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
45 .detect_delay_ms = 200,
46 };
47
palm27x_mmc_init(struct gpiod_lookup_table * gtable)48 void __init palm27x_mmc_init(struct gpiod_lookup_table *gtable)
49 {
50 if (gtable)
51 gpiod_add_lookup_table(gtable);
52 pxa_set_mci_info(&palm27x_mci_platform_data);
53 }
54 #endif
55
56 /******************************************************************************
57 * Power management - standby
58 ******************************************************************************/
59 #if defined(CONFIG_SUSPEND)
palm27x_pm_init(unsigned long str_base)60 void __init palm27x_pm_init(unsigned long str_base)
61 {
62 static const unsigned long resume[] = {
63 0xe3a00101, /* mov r0, #0x40000000 */
64 0xe380060f, /* orr r0, r0, #0x00f00000 */
65 0xe590f008, /* ldr pc, [r0, #0x08] */
66 };
67
68 /*
69 * Copy the bootloader.
70 * NOTE: PalmZ72 uses a different wakeup method!
71 */
72 memcpy(phys_to_virt(str_base), resume, sizeof(resume));
73 }
74 #endif
75
76 /******************************************************************************
77 * Framebuffer
78 ******************************************************************************/
79 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
80 struct pxafb_mode_info palm_320x480_lcd_mode = {
81 .pixclock = 57692,
82 .xres = 320,
83 .yres = 480,
84 .bpp = 16,
85
86 .left_margin = 32,
87 .right_margin = 1,
88 .upper_margin = 7,
89 .lower_margin = 1,
90
91 .hsync_len = 4,
92 .vsync_len = 1,
93 };
94
95 struct pxafb_mode_info palm_320x320_lcd_mode = {
96 .pixclock = 115384,
97 .xres = 320,
98 .yres = 320,
99 .bpp = 16,
100
101 .left_margin = 27,
102 .right_margin = 7,
103 .upper_margin = 7,
104 .lower_margin = 8,
105
106 .hsync_len = 6,
107 .vsync_len = 1,
108 };
109
110 struct pxafb_mode_info palm_320x320_new_lcd_mode = {
111 .pixclock = 86538,
112 .xres = 320,
113 .yres = 320,
114 .bpp = 16,
115
116 .left_margin = 20,
117 .right_margin = 8,
118 .upper_margin = 8,
119 .lower_margin = 5,
120
121 .hsync_len = 4,
122 .vsync_len = 1,
123 };
124
125 static struct pxafb_mach_info palm27x_lcd_screen = {
126 .num_modes = 1,
127 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
128 };
129
130 static int palm27x_lcd_power;
palm27x_lcd_ctl(int on,struct fb_var_screeninfo * info)131 static void palm27x_lcd_ctl(int on, struct fb_var_screeninfo *info)
132 {
133 gpio_set_value(palm27x_lcd_power, on);
134 }
135
palm27x_lcd_init(int power,struct pxafb_mode_info * mode)136 void __init palm27x_lcd_init(int power, struct pxafb_mode_info *mode)
137 {
138 palm27x_lcd_screen.modes = mode;
139
140 if (gpio_is_valid(power)) {
141 if (!gpio_request(power, "LCD power")) {
142 pr_err("Palm27x: failed to claim lcd power gpio!\n");
143 return;
144 }
145 if (!gpio_direction_output(power, 1)) {
146 pr_err("Palm27x: lcd power configuration failed!\n");
147 return;
148 }
149 palm27x_lcd_power = power;
150 palm27x_lcd_screen.pxafb_lcd_power = palm27x_lcd_ctl;
151 }
152
153 pxa_set_fb_info(NULL, &palm27x_lcd_screen);
154 }
155 #endif
156
157 /******************************************************************************
158 * USB Gadget
159 ******************************************************************************/
160 #if defined(CONFIG_USB_PXA27X) || \
161 defined(CONFIG_USB_PXA27X_MODULE)
162 static struct gpio_vbus_mach_info palm27x_udc_info = {
163 .gpio_vbus_inverted = 1,
164 };
165
166 static struct platform_device palm27x_gpio_vbus = {
167 .name = "gpio-vbus",
168 .id = -1,
169 .dev = {
170 .platform_data = &palm27x_udc_info,
171 },
172 };
173
palm27x_udc_init(int vbus,int pullup,int vbus_inverted)174 void __init palm27x_udc_init(int vbus, int pullup, int vbus_inverted)
175 {
176 palm27x_udc_info.gpio_vbus = vbus;
177 palm27x_udc_info.gpio_pullup = pullup;
178
179 palm27x_udc_info.gpio_vbus_inverted = vbus_inverted;
180
181 if (!gpio_request(pullup, "USB Pullup")) {
182 gpio_direction_output(pullup,
183 palm27x_udc_info.gpio_vbus_inverted);
184 gpio_free(pullup);
185 } else
186 return;
187
188 platform_device_register(&palm27x_gpio_vbus);
189 }
190 #endif
191
192 /******************************************************************************
193 * IrDA
194 ******************************************************************************/
195 #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
196 static struct pxaficp_platform_data palm27x_ficp_platform_data = {
197 .transceiver_cap = IR_SIRMODE | IR_OFF,
198 };
199
palm27x_irda_init(int pwdn)200 void __init palm27x_irda_init(int pwdn)
201 {
202 palm27x_ficp_platform_data.gpio_pwdown = pwdn;
203 pxa_set_ficp_info(&palm27x_ficp_platform_data);
204 }
205 #endif
206
207 /******************************************************************************
208 * WM97xx audio, battery
209 ******************************************************************************/
210 #if defined(CONFIG_TOUCHSCREEN_WM97XX) || \
211 defined(CONFIG_TOUCHSCREEN_WM97XX_MODULE)
212 static struct wm97xx_batt_pdata palm27x_batt_pdata = {
213 .batt_aux = WM97XX_AUX_ID3,
214 .temp_aux = WM97XX_AUX_ID2,
215 .charge_gpio = -1,
216 .batt_mult = 1000,
217 .batt_div = 414,
218 .temp_mult = 1,
219 .temp_div = 1,
220 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
221 .batt_name = "main-batt",
222 };
223
224 static struct wm97xx_pdata palm27x_wm97xx_pdata = {
225 .batt_pdata = &palm27x_batt_pdata,
226 };
227
228 static pxa2xx_audio_ops_t palm27x_ac97_pdata = {
229 .codec_pdata = { &palm27x_wm97xx_pdata, },
230 };
231
232 static struct palm27x_asoc_info palm27x_asoc_pdata = {
233 .jack_gpio = -1,
234 };
235
236 static struct platform_device palm27x_asoc = {
237 .name = "palm27x-asoc",
238 .id = -1,
239 .dev = {
240 .platform_data = &palm27x_asoc_pdata,
241 },
242 };
243
palm27x_ac97_init(int minv,int maxv,int jack,int reset)244 void __init palm27x_ac97_init(int minv, int maxv, int jack, int reset)
245 {
246 palm27x_ac97_pdata.reset_gpio = reset;
247 palm27x_asoc_pdata.jack_gpio = jack;
248
249 if (minv < 0 || maxv < 0) {
250 palm27x_ac97_pdata.codec_pdata[0] = NULL;
251 pxa_set_ac97_info(&palm27x_ac97_pdata);
252 } else {
253 palm27x_batt_pdata.min_voltage = minv,
254 palm27x_batt_pdata.max_voltage = maxv,
255
256 pxa_set_ac97_info(&palm27x_ac97_pdata);
257 platform_device_register(&palm27x_asoc);
258 }
259 }
260 #endif
261
262 /******************************************************************************
263 * Backlight
264 ******************************************************************************/
265 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
266 static struct pwm_lookup palm27x_pwm_lookup[] = {
267 PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 3500 * 1024,
268 PWM_POLARITY_NORMAL),
269 };
270
271 static int palm_bl_power;
272 static int palm_lcd_power;
273
palm27x_backlight_init(struct device * dev)274 static int palm27x_backlight_init(struct device *dev)
275 {
276 int ret;
277
278 ret = gpio_request(palm_bl_power, "BL POWER");
279 if (ret)
280 goto err;
281 ret = gpio_direction_output(palm_bl_power, 0);
282 if (ret)
283 goto err2;
284
285 if (gpio_is_valid(palm_lcd_power)) {
286 ret = gpio_request(palm_lcd_power, "LCD POWER");
287 if (ret)
288 goto err2;
289 ret = gpio_direction_output(palm_lcd_power, 0);
290 if (ret)
291 goto err3;
292 }
293
294 return 0;
295 err3:
296 gpio_free(palm_lcd_power);
297 err2:
298 gpio_free(palm_bl_power);
299 err:
300 return ret;
301 }
302
palm27x_backlight_notify(struct device * dev,int brightness)303 static int palm27x_backlight_notify(struct device *dev, int brightness)
304 {
305 gpio_set_value(palm_bl_power, brightness);
306 if (gpio_is_valid(palm_lcd_power))
307 gpio_set_value(palm_lcd_power, brightness);
308 return brightness;
309 }
310
palm27x_backlight_exit(struct device * dev)311 static void palm27x_backlight_exit(struct device *dev)
312 {
313 gpio_free(palm_bl_power);
314 if (gpio_is_valid(palm_lcd_power))
315 gpio_free(palm_lcd_power);
316 }
317
318 static struct platform_pwm_backlight_data palm27x_backlight_data = {
319 .max_brightness = 0xfe,
320 .dft_brightness = 0x7e,
321 .enable_gpio = -1,
322 .init = palm27x_backlight_init,
323 .notify = palm27x_backlight_notify,
324 .exit = palm27x_backlight_exit,
325 };
326
327 static struct platform_device palm27x_backlight = {
328 .name = "pwm-backlight",
329 .dev = {
330 .parent = &pxa27x_device_pwm0.dev,
331 .platform_data = &palm27x_backlight_data,
332 },
333 };
334
palm27x_pwm_init(int bl,int lcd)335 void __init palm27x_pwm_init(int bl, int lcd)
336 {
337 palm_bl_power = bl;
338 palm_lcd_power = lcd;
339 pwm_add_table(palm27x_pwm_lookup, ARRAY_SIZE(palm27x_pwm_lookup));
340 platform_device_register(&palm27x_backlight);
341 }
342 #endif
343
344 /******************************************************************************
345 * Power supply
346 ******************************************************************************/
347 #if defined(CONFIG_PDA_POWER) || defined(CONFIG_PDA_POWER_MODULE)
348 static int palm_ac_state;
349 static int palm_usb_state;
350
palm27x_power_supply_init(struct device * dev)351 static int palm27x_power_supply_init(struct device *dev)
352 {
353 int ret;
354
355 ret = gpio_request(palm_ac_state, "AC state");
356 if (ret)
357 goto err1;
358 ret = gpio_direction_input(palm_ac_state);
359 if (ret)
360 goto err2;
361
362 if (gpio_is_valid(palm_usb_state)) {
363 ret = gpio_request(palm_usb_state, "USB state");
364 if (ret)
365 goto err2;
366 ret = gpio_direction_input(palm_usb_state);
367 if (ret)
368 goto err3;
369 }
370
371 return 0;
372 err3:
373 gpio_free(palm_usb_state);
374 err2:
375 gpio_free(palm_ac_state);
376 err1:
377 return ret;
378 }
379
palm27x_power_supply_exit(struct device * dev)380 static void palm27x_power_supply_exit(struct device *dev)
381 {
382 gpio_free(palm_usb_state);
383 gpio_free(palm_ac_state);
384 }
385
palm27x_is_ac_online(void)386 static int palm27x_is_ac_online(void)
387 {
388 return gpio_get_value(palm_ac_state);
389 }
390
palm27x_is_usb_online(void)391 static int palm27x_is_usb_online(void)
392 {
393 return !gpio_get_value(palm_usb_state);
394 }
395 static char *palm27x_supplicants[] = {
396 "main-battery",
397 };
398
399 static struct pda_power_pdata palm27x_ps_info = {
400 .init = palm27x_power_supply_init,
401 .exit = palm27x_power_supply_exit,
402 .is_ac_online = palm27x_is_ac_online,
403 .is_usb_online = palm27x_is_usb_online,
404 .supplied_to = palm27x_supplicants,
405 .num_supplicants = ARRAY_SIZE(palm27x_supplicants),
406 };
407
408 static struct platform_device palm27x_power_supply = {
409 .name = "pda-power",
410 .id = -1,
411 .dev = {
412 .platform_data = &palm27x_ps_info,
413 },
414 };
415
palm27x_power_init(int ac,int usb)416 void __init palm27x_power_init(int ac, int usb)
417 {
418 palm_ac_state = ac;
419 palm_usb_state = usb;
420 platform_device_register(&palm27x_power_supply);
421 }
422 #endif
423
424 /******************************************************************************
425 * Core power regulator
426 ******************************************************************************/
427 #if defined(CONFIG_REGULATOR_MAX1586) || \
428 defined(CONFIG_REGULATOR_MAX1586_MODULE)
429 static struct regulator_consumer_supply palm27x_max1587a_consumers[] = {
430 REGULATOR_SUPPLY("vcc_core", NULL),
431 };
432
433 static struct regulator_init_data palm27x_max1587a_v3_info = {
434 .constraints = {
435 .name = "vcc_core range",
436 .min_uV = 900000,
437 .max_uV = 1705000,
438 .always_on = 1,
439 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
440 },
441 .consumer_supplies = palm27x_max1587a_consumers,
442 .num_consumer_supplies = ARRAY_SIZE(palm27x_max1587a_consumers),
443 };
444
445 static struct max1586_subdev_data palm27x_max1587a_subdevs[] = {
446 {
447 .name = "vcc_core",
448 .id = MAX1586_V3,
449 .platform_data = &palm27x_max1587a_v3_info,
450 }
451 };
452
453 static struct max1586_platform_data palm27x_max1587a_info = {
454 .subdevs = palm27x_max1587a_subdevs,
455 .num_subdevs = ARRAY_SIZE(palm27x_max1587a_subdevs),
456 .v3_gain = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */
457 };
458
459 static struct i2c_board_info __initdata palm27x_pi2c_board_info[] = {
460 {
461 I2C_BOARD_INFO("max1586", 0x14),
462 .platform_data = &palm27x_max1587a_info,
463 },
464 };
465
466 static struct i2c_pxa_platform_data palm27x_i2c_power_info = {
467 .use_pio = 1,
468 };
469
palm27x_pmic_init(void)470 void __init palm27x_pmic_init(void)
471 {
472 i2c_register_board_info(1, ARRAY_AND_SIZE(palm27x_pi2c_board_info));
473 pxa27x_set_i2c_power_info(&palm27x_i2c_power_info);
474 }
475 #endif
476