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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-pxa/magician.c

Version: ~ [ linux-5.6-rc1 ] ~ [ linux-5.5.2 ] ~ [ linux-5.4.17 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.102 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.170 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.213 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.213 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.81 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * Support for HTC Magician PDA phones:
  3  * i-mate JAM, O2 Xda mini, Orange SPV M500, Qtek s100, Qtek s110
  4  * and T-Mobile MDA Compact.
  5  *
  6  * Copyright (c) 2006-2007 Philipp Zabel
  7  *
  8  * Based on hx4700.c, spitz.c and others.
  9  *
 10  * This program is free software; you can redistribute it and/or modify
 11  * it under the terms of the GNU General Public License version 2 as
 12  * published by the Free Software Foundation.
 13  *
 14  */
 15 
 16 #include <linux/kernel.h>
 17 #include <linux/init.h>
 18 #include <linux/platform_device.h>
 19 #include <linux/delay.h>
 20 #include <linux/gpio.h>
 21 #include <linux/gpio_keys.h>
 22 #include <linux/input.h>
 23 #include <linux/mfd/htc-pasic3.h>
 24 #include <linux/mtd/physmap.h>
 25 #include <linux/pda_power.h>
 26 #include <linux/platform_data/gpio-htc-egpio.h>
 27 #include <linux/pwm.h>
 28 #include <linux/pwm_backlight.h>
 29 #include <linux/regulator/driver.h>
 30 #include <linux/regulator/fixed.h>
 31 #include <linux/regulator/gpio-regulator.h>
 32 #include <linux/regulator/machine.h>
 33 #include <linux/usb/gpio_vbus.h>
 34 #include <linux/platform_data/i2c-pxa.h>
 35 
 36 #include <mach/hardware.h>
 37 #include <asm/mach-types.h>
 38 #include <asm/mach/arch.h>
 39 #include <asm/system_info.h>
 40 
 41 #include "pxa27x.h"
 42 #include <mach/magician.h>
 43 #include <linux/platform_data/video-pxafb.h>
 44 #include <linux/platform_data/mmc-pxamci.h>
 45 #include <linux/platform_data/irda-pxaficp.h>
 46 #include <linux/platform_data/usb-ohci-pxa27x.h>
 47 
 48 #include <linux/regulator/max1586.h>
 49 
 50 #include <linux/platform_data/pxa2xx_udc.h>
 51 
 52 #include "udc.h"
 53 #include "pxa27x-udc.h"
 54 #include "devices.h"
 55 #include "generic.h"
 56 
 57 #include <linux/spi/spi.h>
 58 #include <linux/spi/pxa2xx_spi.h>
 59 #include <linux/spi/ads7846.h>
 60 
 61 static unsigned long magician_pin_config[] __initdata = {
 62 
 63         /* SDRAM and Static Memory I/O Signals */
 64         GPIO20_nSDCS_2,
 65         GPIO21_nSDCS_3,
 66         GPIO15_nCS_1,
 67         GPIO78_nCS_2,   /* PASIC3 */
 68         GPIO79_nCS_3,   /* EGPIO CPLD */
 69         GPIO80_nCS_4,
 70         GPIO33_nCS_5,
 71 
 72         /* I2C UDA1380 + OV9640 */
 73         GPIO117_I2C_SCL,
 74         GPIO118_I2C_SDA,
 75 
 76         /* PWM 0 - LCD backlight */
 77         GPIO16_PWM0_OUT,
 78 
 79         /* I2S UDA1380 capture */
 80         GPIO28_I2S_BITCLK_OUT,
 81         GPIO29_I2S_SDATA_IN,
 82         GPIO31_I2S_SYNC,
 83         GPIO113_I2S_SYSCLK,
 84 
 85         /* SSP 1 UDA1380 playback */
 86         GPIO23_SSP1_SCLK,
 87         GPIO24_SSP1_SFRM,
 88         GPIO25_SSP1_TXD,
 89 
 90         /* SSP 2 TSC2046 touchscreen */
 91         GPIO19_SSP2_SCLK,
 92         MFP_CFG_OUT(GPIO14, AF0, DRIVE_HIGH),   /* frame as GPIO */
 93         GPIO89_SSP2_TXD,
 94         GPIO88_SSP2_RXD,
 95 
 96         /* MMC/SD/SDHC slot */
 97         GPIO32_MMC_CLK,
 98         GPIO92_MMC_DAT_0,
 99         GPIO109_MMC_DAT_1,
100         GPIO110_MMC_DAT_2,
101         GPIO111_MMC_DAT_3,
102         GPIO112_MMC_CMD,
103 
104         /* LCD */
105         GPIOxx_LCD_TFT_16BPP,
106 
107         /* QCI camera interface */
108         GPIO12_CIF_DD_7,
109         GPIO17_CIF_DD_6,
110         GPIO50_CIF_DD_3,
111         GPIO51_CIF_DD_2,
112         GPIO52_CIF_DD_4,
113         GPIO53_CIF_MCLK,
114         GPIO54_CIF_PCLK,
115         GPIO55_CIF_DD_1,
116         GPIO81_CIF_DD_0,
117         GPIO82_CIF_DD_5,
118         GPIO84_CIF_FV,
119         GPIO85_CIF_LV,
120 
121         /* Magician specific input GPIOs */
122         GPIO9_GPIO,     /* unknown */
123         GPIO10_GPIO,    /* GSM_IRQ */
124         GPIO13_GPIO,    /* CPLD_IRQ */
125         GPIO107_GPIO,   /* DS1WM_IRQ */
126         GPIO108_GPIO,   /* GSM_READY */
127         GPIO115_GPIO,   /* nPEN_IRQ */
128 };
129 
130 /*
131  * IrDA
132  */
133 
134 static struct pxaficp_platform_data magician_ficp_info = {
135         .gpio_pwdown            = GPIO83_MAGICIAN_nIR_EN,
136         .transceiver_cap        = IR_SIRMODE | IR_OFF,
137         .gpio_pwdown_inverted   = 0,
138 };
139 
140 /*
141  * GPIO Keys
142  */
143 
144 #define INIT_KEY(_code, _gpio, _desc)   \
145         {                               \
146                 .code   = KEY_##_code,  \
147                 .gpio   = _gpio,        \
148                 .desc   = _desc,        \
149                 .type   = EV_KEY,       \
150                 .wakeup = 1,            \
151         }
152 
153 static struct gpio_keys_button magician_button_table[] = {
154         INIT_KEY(POWER,      GPIO0_MAGICIAN_KEY_POWER,      "Power button"),
155         INIT_KEY(ESC,        GPIO37_MAGICIAN_KEY_HANGUP,    "Hangup button"),
156         INIT_KEY(F10,        GPIO38_MAGICIAN_KEY_CONTACTS,  "Contacts button"),
157         INIT_KEY(CALENDAR,   GPIO90_MAGICIAN_KEY_CALENDAR,  "Calendar button"),
158         INIT_KEY(CAMERA,     GPIO91_MAGICIAN_KEY_CAMERA,    "Camera button"),
159         INIT_KEY(UP,         GPIO93_MAGICIAN_KEY_UP,        "Up button"),
160         INIT_KEY(DOWN,       GPIO94_MAGICIAN_KEY_DOWN,      "Down button"),
161         INIT_KEY(LEFT,       GPIO95_MAGICIAN_KEY_LEFT,      "Left button"),
162         INIT_KEY(RIGHT,      GPIO96_MAGICIAN_KEY_RIGHT,     "Right button"),
163         INIT_KEY(KPENTER,    GPIO97_MAGICIAN_KEY_ENTER,     "Action button"),
164         INIT_KEY(RECORD,     GPIO98_MAGICIAN_KEY_RECORD,    "Record button"),
165         INIT_KEY(VOLUMEUP,   GPIO100_MAGICIAN_KEY_VOL_UP,   "Volume up"),
166         INIT_KEY(VOLUMEDOWN, GPIO101_MAGICIAN_KEY_VOL_DOWN, "Volume down"),
167         INIT_KEY(PHONE,      GPIO102_MAGICIAN_KEY_PHONE,    "Phone button"),
168         INIT_KEY(PLAY,       GPIO99_MAGICIAN_HEADPHONE_IN,  "Headset button"),
169 };
170 
171 static struct gpio_keys_platform_data gpio_keys_data = {
172         .buttons        = magician_button_table,
173         .nbuttons       = ARRAY_SIZE(magician_button_table),
174 };
175 
176 static struct platform_device gpio_keys = {
177         .name   = "gpio-keys",
178         .dev    = {
179                 .platform_data = &gpio_keys_data,
180         },
181         .id     = -1,
182 };
183 
184 /*
185  * EGPIO (Xilinx CPLD)
186  *
187  * 32-bit aligned 8-bit registers
188  * 16 possible registers (reg windows size), only 7 used:
189  * 3x output, 1x irq, 3x input
190  */
191 
192 static struct resource egpio_resources[] = {
193         [0] = {
194                 .start  = PXA_CS3_PHYS,
195                 .end    = PXA_CS3_PHYS + 0x20 - 1,
196                 .flags  = IORESOURCE_MEM,
197         },
198         [1] = {
199                 .start  = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
200                 .end    = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
201                 .flags  = IORESOURCE_IRQ,
202         },
203 };
204 
205 static struct htc_egpio_chip egpio_chips[] = {
206         [0] = {
207                 .reg_start      = 0,
208                 .gpio_base      = MAGICIAN_EGPIO(0, 0),
209                 .num_gpios      = 24,
210                 .direction      = HTC_EGPIO_OUTPUT,
211                 /*
212                  * Depends on modules configuration
213                  */
214                 .initial_values = 0x40, /* EGPIO_MAGICIAN_GSM_RESET */
215         },
216         [1] = {
217                 .reg_start      = 4,
218                 .gpio_base      = MAGICIAN_EGPIO(4, 0),
219                 .num_gpios      = 24,
220                 .direction      = HTC_EGPIO_INPUT,
221         },
222 };
223 
224 static struct htc_egpio_platform_data egpio_info = {
225         .reg_width      = 8,
226         .bus_width      = 32,
227         .irq_base       = IRQ_BOARD_START,
228         .num_irqs       = 4,
229         .ack_register   = 3,
230         .chip           = egpio_chips,
231         .num_chips      = ARRAY_SIZE(egpio_chips),
232 };
233 
234 static struct platform_device egpio = {
235         .name           = "htc-egpio",
236         .id             = -1,
237         .resource       = egpio_resources,
238         .num_resources  = ARRAY_SIZE(egpio_resources),
239         .dev = {
240                 .platform_data = &egpio_info,
241         },
242 };
243 
244 /*
245  * PXAFB LCD - Toppoly TD028STEB1 or Samsung LTP280QV
246  */
247 
248 static struct pxafb_mode_info toppoly_modes[] = {
249         {
250                 .pixclock       = 96153,
251                 .bpp            = 16,
252                 .xres           = 240,
253                 .yres           = 320,
254                 .hsync_len      = 11,
255                 .vsync_len      = 3,
256                 .left_margin    = 19,
257                 .upper_margin   = 2,
258                 .right_margin   = 10,
259                 .lower_margin   = 2,
260                 .sync           = 0,
261         },
262 };
263 
264 static struct pxafb_mode_info samsung_modes[] = {
265         {
266                 .pixclock       = 226469,
267                 .bpp            = 16,
268                 .xres           = 240,
269                 .yres           = 320,
270                 .hsync_len      = 8,
271                 .vsync_len      = 4,
272                 .left_margin    = 9,
273                 .upper_margin   = 4,
274                 .right_margin   = 9,
275                 .lower_margin   = 4,
276                 .sync   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
277         },
278 };
279 
280 static void toppoly_lcd_power(int on, struct fb_var_screeninfo *si)
281 {
282         pr_debug("Toppoly LCD power: %s\n", on ? "on" : "off");
283 
284         if (on) {
285                 gpio_set_value(EGPIO_MAGICIAN_TOPPOLY_POWER, 1);
286                 gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
287                 udelay(2000);
288                 gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
289                 udelay(2000);
290                 /* FIXME: enable LCDC here */
291                 udelay(2000);
292                 gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
293                 udelay(2000);
294                 gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
295         } else {
296                 msleep(15);
297                 gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
298                 udelay(500);
299                 gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
300                 udelay(1000);
301                 gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
302                 gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
303         }
304 }
305 
306 static void samsung_lcd_power(int on, struct fb_var_screeninfo *si)
307 {
308         pr_debug("Samsung LCD power: %s\n", on ? "on" : "off");
309 
310         if (on) {
311                 if (system_rev < 3)
312                         gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 1);
313                 else
314                         gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
315                 mdelay(6);
316                 gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
317                 mdelay(6);      /* Avdd -> Voff >5ms */
318                 gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
319                 mdelay(16);     /* Voff -> Von >(5+10)ms */
320                 gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
321         } else {
322                 gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
323                 mdelay(16);
324                 gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
325                 mdelay(6);
326                 gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
327                 mdelay(6);
328                 if (system_rev < 3)
329                         gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 0);
330                 else
331                         gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
332         }
333 }
334 
335 static struct pxafb_mach_info toppoly_info = {
336         .modes                  = toppoly_modes,
337         .num_modes              = 1,
338         .fixed_modes            = 1,
339         .lcd_conn               = LCD_COLOR_TFT_16BPP,
340         .pxafb_lcd_power        = toppoly_lcd_power,
341 };
342 
343 static struct pxafb_mach_info samsung_info = {
344         .modes                  = samsung_modes,
345         .num_modes              = 1,
346         .fixed_modes            = 1,
347         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
348                 LCD_ALTERNATE_MAPPING,
349         .pxafb_lcd_power        = samsung_lcd_power,
350 };
351 
352 /*
353  * Backlight
354  */
355 
356 static struct pwm_lookup magician_pwm_lookup[] = {
357         PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 30923,
358                    PWM_POLARITY_NORMAL),
359 };
360 
361  /*
362  * fixed regulator for pwm_backlight
363  */
364 
365 static struct regulator_consumer_supply pwm_backlight_supply[] = {
366         REGULATOR_SUPPLY("power", "pwm_backlight"),
367 };
368 
369 
370 static struct gpio magician_bl_gpios[] = {
371         { EGPIO_MAGICIAN_BL_POWER,      GPIOF_DIR_OUT, "Backlight power" },
372         { EGPIO_MAGICIAN_BL_POWER2,     GPIOF_DIR_OUT, "Backlight power 2" },
373 };
374 
375 static int magician_backlight_init(struct device *dev)
376 {
377         return gpio_request_array(ARRAY_AND_SIZE(magician_bl_gpios));
378 }
379 
380 static int magician_backlight_notify(struct device *dev, int brightness)
381 {
382         pr_debug("Brightness = %i\n", brightness);
383         gpio_set_value(EGPIO_MAGICIAN_BL_POWER, brightness);
384         if (brightness >= 200) {
385                 gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 1);
386                 return brightness - 72;
387         } else {
388                 gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 0);
389                 return brightness;
390         }
391 }
392 
393 static void magician_backlight_exit(struct device *dev)
394 {
395         gpio_free_array(ARRAY_AND_SIZE(magician_bl_gpios));
396 }
397 
398 /*
399  * LCD PWM backlight (main)
400  *
401  * MP1521 frequency should be:
402  *      100-400 Hz = 2 .5*10^6 - 10 *10^6 ns
403  */
404 
405 static struct platform_pwm_backlight_data backlight_data = {
406         .max_brightness = 272,
407         .dft_brightness = 100,
408         .enable_gpio    = -1,
409         .init           = magician_backlight_init,
410         .notify         = magician_backlight_notify,
411         .exit           = magician_backlight_exit,
412 };
413 
414 static struct platform_device backlight = {
415         .name   = "pwm-backlight",
416         .id     = -1,
417         .dev    = {
418                 .parent         = &pxa27x_device_pwm0.dev,
419                 .platform_data  = &backlight_data,
420         },
421 };
422 
423 /*
424  * GPIO LEDs, Phone keys backlight, vibra
425  */
426 
427 static struct gpio_led gpio_leds[] = {
428         {
429                 .name = "magician::vibra",
430                 .default_trigger = "none",
431                 .gpio = GPIO22_MAGICIAN_VIBRA_EN,
432         },
433         {
434                 .name = "magician::phone_bl",
435                 .default_trigger = "backlight",
436                 .gpio = GPIO103_MAGICIAN_LED_KP,
437         },
438 };
439 
440 static struct gpio_led_platform_data gpio_led_info = {
441         .leds = gpio_leds,
442         .num_leds = ARRAY_SIZE(gpio_leds),
443 };
444 
445 static struct platform_device leds_gpio = {
446         .name   = "leds-gpio",
447         .id     = -1,
448         .dev    = {
449                 .platform_data = &gpio_led_info,
450         },
451 };
452 
453 /*
454  * PASIC3 with DS1WM
455  */
456 
457 static struct resource pasic3_resources[] = {
458         [0] = {
459                 .start  = PXA_CS2_PHYS,
460                 .end    = PXA_CS2_PHYS + 0x1b,
461                 .flags  = IORESOURCE_MEM,
462         },
463         /* No IRQ handler in the PASIC3, DS1WM needs an external IRQ */
464         [1] = {
465                 .start  = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
466                 .end    = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
467                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
468         }
469 };
470 
471 static struct pasic3_platform_data pasic3_platform_data = {
472         .clock_rate = 4000000,
473 };
474 
475 static struct platform_device pasic3 = {
476         .name           = "pasic3",
477         .id             = -1,
478         .num_resources  = ARRAY_SIZE(pasic3_resources),
479         .resource       = pasic3_resources,
480         .dev = {
481                 .platform_data = &pasic3_platform_data,
482         },
483 };
484 
485 /*
486  * PXA UDC
487  */
488 
489 static void magician_udc_command(int cmd)
490 {
491         if (cmd == PXA2XX_UDC_CMD_CONNECT)
492                 UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE;
493         else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
494                 UP2OCR &= ~(UP2OCR_DPPUE | UP2OCR_DPPUBE);
495 }
496 
497 static struct pxa2xx_udc_mach_info magician_udc_info __initdata = {
498         .udc_command    = magician_udc_command,
499         .gpio_pullup    = GPIO27_MAGICIAN_USBC_PUEN,
500 };
501 
502 /*
503  * USB device VBus detection
504  */
505 
506 static struct resource gpio_vbus_resource = {
507         .flags  = IORESOURCE_IRQ,
508         .start  = IRQ_MAGICIAN_VBUS,
509         .end    = IRQ_MAGICIAN_VBUS,
510 };
511 
512 static struct gpio_vbus_mach_info gpio_vbus_info = {
513         .gpio_pullup    = GPIO27_MAGICIAN_USBC_PUEN,
514         .gpio_vbus      = EGPIO_MAGICIAN_CABLE_VBUS,
515 };
516 
517 static struct platform_device gpio_vbus = {
518         .name           = "gpio-vbus",
519         .id             = -1,
520         .num_resources  = 1,
521         .resource       = &gpio_vbus_resource,
522         .dev = {
523                 .platform_data = &gpio_vbus_info,
524         },
525 };
526 
527 /*
528  * External power
529  */
530 
531 static int magician_supply_init(struct device *dev)
532 {
533         int ret = -1;
534 
535         ret = gpio_request(EGPIO_MAGICIAN_CABLE_TYPE, "Cable is AC charger");
536         if (ret) {
537                 pr_err("Cannot request AC/USB charger GPIO (%i)\n", ret);
538                 goto err_ac;
539         }
540 
541         ret = gpio_request(EGPIO_MAGICIAN_CABLE_INSERTED, "Cable inserted");
542         if (ret) {
543                 pr_err("Cannot request cable detection GPIO (%i)\n", ret);
544                 goto err_usb;
545         }
546 
547         return 0;
548 
549 err_usb:
550         gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
551 err_ac:
552         return ret;
553 }
554 
555 static void magician_set_charge(int flags)
556 {
557         if (flags & PDA_POWER_CHARGE_AC) {
558                 pr_debug("Charging from AC\n");
559                 gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
560         } else if (flags & PDA_POWER_CHARGE_USB) {
561                 pr_debug("Charging from USB\n");
562                 gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
563         } else {
564                 pr_debug("Charging disabled\n");
565                 gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 0);
566         }
567 }
568 
569 static int magician_is_ac_online(void)
570 {
571         return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
572                 gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE); /* AC=1 */
573 }
574 
575 static int magician_is_usb_online(void)
576 {
577         return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
578                 (!gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE)); /* USB=0 */
579 }
580 
581 static void magician_supply_exit(struct device *dev)
582 {
583         gpio_free(EGPIO_MAGICIAN_CABLE_INSERTED);
584         gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
585 }
586 
587 static char *magician_supplicants[] = {
588         "ds2760-battery.0", "backup-battery"
589 };
590 
591 static struct pda_power_pdata power_supply_info = {
592         .init                   = magician_supply_init,
593         .exit                   = magician_supply_exit,
594         .is_ac_online           = magician_is_ac_online,
595         .is_usb_online          = magician_is_usb_online,
596         .set_charge             = magician_set_charge,
597         .supplied_to            = magician_supplicants,
598         .num_supplicants        = ARRAY_SIZE(magician_supplicants),
599 };
600 
601 static struct resource power_supply_resources[] = {
602         [0] = {
603                 .name   = "ac",
604                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
605                         IORESOURCE_IRQ_LOWEDGE,
606                 .start  = IRQ_MAGICIAN_VBUS,
607                 .end    = IRQ_MAGICIAN_VBUS,
608         },
609         [1] = {
610                 .name   = "usb",
611                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
612                         IORESOURCE_IRQ_LOWEDGE,
613                 .start  = IRQ_MAGICIAN_VBUS,
614                 .end    = IRQ_MAGICIAN_VBUS,
615         },
616 };
617 
618 static struct platform_device power_supply = {
619         .name   = "pda-power",
620         .id     = -1,
621         .dev = {
622                 .platform_data = &power_supply_info,
623         },
624         .resource       = power_supply_resources,
625         .num_resources  = ARRAY_SIZE(power_supply_resources),
626 };
627 
628 /*
629  * Battery charger
630  */
631 
632 static struct regulator_consumer_supply bq24022_consumers[] = {
633         REGULATOR_SUPPLY("vbus_draw", NULL),
634         REGULATOR_SUPPLY("ac_draw", NULL),
635 };
636 
637 static struct regulator_init_data bq24022_init_data = {
638         .constraints = {
639                 .max_uA         = 500000,
640                 .valid_ops_mask = REGULATOR_CHANGE_CURRENT |
641                         REGULATOR_CHANGE_STATUS,
642         },
643         .num_consumer_supplies  = ARRAY_SIZE(bq24022_consumers),
644         .consumer_supplies      = bq24022_consumers,
645 };
646 
647 static struct gpio bq24022_gpios[] = {
648         { EGPIO_MAGICIAN_BQ24022_ISET2, GPIOF_OUT_INIT_LOW, "bq24022_iset2" },
649 };
650 
651 static struct gpio_regulator_state bq24022_states[] = {
652         { .value = 100000, .gpios = (0 << 0) },
653         { .value = 500000, .gpios = (1 << 0) },
654 };
655 
656 static struct gpio_regulator_config bq24022_info = {
657         .supply_name            = "bq24022",
658 
659         .enable_gpio            = GPIO30_MAGICIAN_BQ24022_nCHARGE_EN,
660         .enable_high            = 0,
661         .enabled_at_boot        = 1,
662 
663         .gpios                  = bq24022_gpios,
664         .nr_gpios               = ARRAY_SIZE(bq24022_gpios),
665 
666         .states                 = bq24022_states,
667         .nr_states              = ARRAY_SIZE(bq24022_states),
668 
669         .type                   = REGULATOR_CURRENT,
670         .init_data              = &bq24022_init_data,
671 };
672 
673 static struct platform_device bq24022 = {
674         .name   = "gpio-regulator",
675         .id     = -1,
676         .dev    = {
677                 .platform_data = &bq24022_info,
678         },
679 };
680 
681 /*
682  * fixed regulator for ads7846
683  */
684 
685 static struct regulator_consumer_supply ads7846_supply =
686         REGULATOR_SUPPLY("vcc", "spi2.0");
687 
688 static struct regulator_init_data vads7846_regulator = {
689         .constraints    = {
690                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
691         },
692         .num_consumer_supplies  = 1,
693         .consumer_supplies      = &ads7846_supply,
694 };
695 
696 static struct fixed_voltage_config vads7846 = {
697         .supply_name    = "vads7846",
698         .microvolts     = 3300000, /* probably */
699         .gpio           = -EINVAL,
700         .startup_delay  = 0,
701         .init_data      = &vads7846_regulator,
702 };
703 
704 static struct platform_device vads7846_device = {
705         .name   = "reg-fixed-voltage",
706         .id     = -1,
707         .dev    = {
708                 .platform_data  = &vads7846,
709         },
710 };
711 
712 /*
713  * Vcore regulator MAX1587A
714  */
715 
716 static struct regulator_consumer_supply magician_max1587a_consumers[] = {
717         REGULATOR_SUPPLY("vcc_core", NULL),
718 };
719 
720 static struct regulator_init_data magician_max1587a_v3_info = {
721         .constraints = {
722                 .name           = "vcc_core range",
723                 .min_uV         = 700000,
724                 .max_uV         = 1475000,
725                 .always_on      = 1,
726                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
727         },
728         .consumer_supplies      = magician_max1587a_consumers,
729         .num_consumer_supplies  = ARRAY_SIZE(magician_max1587a_consumers),
730 };
731 
732 static struct max1586_subdev_data magician_max1587a_subdevs[] = {
733         {
734                 .name           = "vcc_core",
735                 .id             = MAX1586_V3,
736                 .platform_data  = &magician_max1587a_v3_info,
737         }
738 };
739 
740 static struct max1586_platform_data magician_max1587a_info = {
741         .subdevs     = magician_max1587a_subdevs,
742         .num_subdevs = ARRAY_SIZE(magician_max1587a_subdevs),
743         /*
744          * NOTICE measured directly on the PCB (board_id == 0x3a), but
745          * if R24 is present, it will boost the voltage
746          * (write 1.475V, get 1.645V and smoke)
747          */
748         .v3_gain     = MAX1586_GAIN_NO_R24,
749 };
750 
751 static struct i2c_board_info magician_pwr_i2c_board_info[] __initdata = {
752         {
753                 I2C_BOARD_INFO("max1586", 0x14),
754                 .platform_data  = &magician_max1587a_info,
755         },
756 };
757 
758 /*
759  * MMC/SD
760  */
761 
762 static int magician_mci_init(struct device *dev,
763         irq_handler_t detect_irq, void *data)
764 {
765         return request_irq(IRQ_MAGICIAN_SD, detect_irq, 0,
766                 "mmc card detect", data);
767 }
768 
769 static void magician_mci_exit(struct device *dev, void *data)
770 {
771         free_irq(IRQ_MAGICIAN_SD, data);
772 }
773 
774 static struct pxamci_platform_data magician_mci_info = {
775         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
776         .init                   = magician_mci_init,
777         .exit                   = magician_mci_exit,
778         .gpio_card_detect       = -1,
779         .gpio_card_ro           = EGPIO_MAGICIAN_nSD_READONLY,
780         .gpio_card_ro_invert    = 1,
781         .gpio_power             = EGPIO_MAGICIAN_SD_POWER,
782 };
783 
784 
785 /*
786  * USB OHCI
787  */
788 
789 static struct pxaohci_platform_data magician_ohci_info = {
790         .port_mode      = PMM_PERPORT_MODE,
791         /* port1: CSR Bluetooth, port2: OTG with UDC */
792         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
793         .power_budget   = 0,
794         .power_on_delay = 100,
795 };
796 
797 /*
798  * StrataFlash
799  */
800 
801 static int magician_flash_init(struct platform_device *pdev)
802 {
803         int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable");
804 
805         if (ret) {
806                 pr_err("Cannot request flash enable GPIO (%i)\n", ret);
807                 return ret;
808         }
809 
810         ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1);
811         if (ret) {
812                 pr_err("Cannot set direction for flash enable (%i)\n", ret);
813                 gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
814         }
815 
816         return ret;
817 }
818 
819 static void magician_set_vpp(struct platform_device *pdev, int vpp)
820 {
821         gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
822 }
823 
824 static void magician_flash_exit(struct platform_device *pdev)
825 {
826         gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
827 }
828 
829 static struct resource strataflash_resource = {
830         .start  = PXA_CS0_PHYS,
831         .end    = PXA_CS0_PHYS + SZ_64M - 1,
832         .flags  = IORESOURCE_MEM,
833 };
834 
835 static struct mtd_partition magician_flash_parts[] = {
836         {
837                 .name           = "Bootloader",
838                 .offset         = 0x0,
839                 .size           = 0x40000,
840                 .mask_flags     = MTD_WRITEABLE, /* EXPERIMENTAL */
841         },
842         {
843                 .name           = "Linux Kernel",
844                 .offset         = 0x40000,
845                 .size           = MTDPART_SIZ_FULL,
846         },
847 };
848 
849 /*
850  * physmap-flash driver
851  */
852 
853 static struct physmap_flash_data strataflash_data = {
854         .width          = 4,
855         .init           = magician_flash_init,
856         .set_vpp        = magician_set_vpp,
857         .exit           = magician_flash_exit,
858         .parts          = magician_flash_parts,
859         .nr_parts       = ARRAY_SIZE(magician_flash_parts),
860 };
861 
862 static struct platform_device strataflash = {
863         .name           = "physmap-flash",
864         .id             = -1,
865         .resource       = &strataflash_resource,
866         .num_resources  = 1,
867         .dev = {
868                 .platform_data = &strataflash_data,
869         },
870 };
871 
872 /*
873  * PXA I2C main controller
874  */
875 
876 static struct i2c_pxa_platform_data i2c_info = {
877         /* OV9640 I2C device doesn't support fast mode */
878         .fast_mode      = 0,
879 };
880 
881 /*
882  * PXA I2C power controller
883  */
884 
885 static struct i2c_pxa_platform_data magician_i2c_power_info = {
886         .fast_mode      = 1,
887 };
888 
889 /*
890  * Touchscreen
891  */
892 
893 static struct ads7846_platform_data ads7846_pdata = {
894         .model          = 7846,
895         .x_plate_ohms   = 317,
896         .y_plate_ohms   = 500,
897         .pressure_max   = 1023, /* with x plate ohms it will overflow 255 */
898         .debounce_max   = 3,    /* first readout is always bad */
899         .debounce_tol   = 30,
900         .debounce_rep   = 0,
901         .gpio_pendown   = GPIO115_MAGICIAN_nPEN_IRQ,
902         .keep_vref_on   = 1,
903         .wakeup         = true,
904         .vref_delay_usecs               = 100,
905         .penirq_recheck_delay_usecs     = 100,
906 };
907 
908 struct pxa2xx_spi_chip tsc2046_chip_info = {
909         .tx_threshold   = 1,
910         .rx_threshold   = 2,
911         .timeout        = 64,
912         /* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
913         .gpio_cs        = GPIO14_MAGICIAN_TSC2046_CS,
914 };
915 
916 static struct pxa2xx_spi_master magician_spi_info = {
917         .num_chipselect = 1,
918         .enable_dma     = 1,
919 };
920 
921 static struct spi_board_info ads7846_spi_board_info[] __initdata = {
922         {
923                 .modalias               = "ads7846",
924                 .bus_num                = 2,
925                 .max_speed_hz           = 2500000,
926                 .platform_data          = &ads7846_pdata,
927                 .controller_data        = &tsc2046_chip_info,
928                 .irq = PXA_GPIO_TO_IRQ(GPIO115_MAGICIAN_nPEN_IRQ),
929         },
930 };
931 
932 /*
933  * Platform devices
934  */
935 
936 static struct platform_device *devices[] __initdata = {
937         &gpio_keys,
938         &egpio,
939         &backlight,
940         &pasic3,
941         &bq24022,
942         &gpio_vbus,
943         &power_supply,
944         &strataflash,
945         &leds_gpio,
946         &vads7846_device,
947 };
948 
949 static struct gpio magician_global_gpios[] = {
950         { GPIO13_MAGICIAN_CPLD_IRQ, GPIOF_IN, "CPLD_IRQ" },
951         { GPIO107_MAGICIAN_DS1WM_IRQ, GPIOF_IN, "DS1WM_IRQ" },
952 
953         /* NOTICE valid LCD init sequence */
954         { GPIO106_MAGICIAN_LCD_DCDC_NRESET, GPIOF_OUT_INIT_LOW, "LCD DCDC nreset" },
955         { GPIO104_MAGICIAN_LCD_VOFF_EN, GPIOF_OUT_INIT_LOW, "LCD VOFF enable" },
956         { GPIO105_MAGICIAN_LCD_VON_EN, GPIOF_OUT_INIT_LOW, "LCD VON enable" },
957 };
958 
959 static void __init magician_init(void)
960 {
961         void __iomem *cpld;
962         int lcd_select;
963         int err;
964 
965         pxa2xx_mfp_config(ARRAY_AND_SIZE(magician_pin_config));
966         err = gpio_request_array(ARRAY_AND_SIZE(magician_global_gpios));
967         if (err)
968                 pr_err("magician: Failed to request global GPIOs: %d\n", err);
969 
970         pxa_set_ffuart_info(NULL);
971         pxa_set_btuart_info(NULL);
972 
973         pwm_add_table(magician_pwm_lookup, ARRAY_SIZE(magician_pwm_lookup));
974 
975         pxa_set_ficp_info(&magician_ficp_info);
976         pxa27x_set_i2c_power_info(&magician_i2c_power_info);
977         pxa_set_i2c_info(&i2c_info);
978 
979         i2c_register_board_info(1,
980                 ARRAY_AND_SIZE(magician_pwr_i2c_board_info));
981 
982         pxa_set_mci_info(&magician_mci_info);
983         pxa_set_ohci_info(&magician_ohci_info);
984         pxa_set_udc_info(&magician_udc_info);
985 
986         /* Check LCD type we have */
987         cpld = ioremap_nocache(PXA_CS3_PHYS, 0x1000);
988         if (cpld) {
989                 u8 board_id = __raw_readb(cpld + 0x14);
990 
991                 iounmap(cpld);
992                 system_rev = board_id & 0x7;
993                 lcd_select = board_id & 0x8;
994                 pr_info("LCD type: %s\n", lcd_select ? "Samsung" : "Toppoly");
995                 if (lcd_select && (system_rev < 3))
996                         /* NOTICE valid LCD init sequence */
997                         gpio_request_one(GPIO75_MAGICIAN_SAMSUNG_POWER,
998                                 GPIOF_OUT_INIT_LOW, "Samsung LCD Power");
999                 pxa_set_fb_info(NULL,
1000                         lcd_select ? &samsung_info : &toppoly_info);
1001         } else
1002                 pr_err("LCD detection: CPLD mapping failed\n");
1003 
1004         pxa2xx_set_spi_info(2, &magician_spi_info);
1005         spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));
1006 
1007         regulator_register_always_on(0, "power", pwm_backlight_supply,
1008                 ARRAY_SIZE(pwm_backlight_supply), 5000000);
1009 
1010         platform_add_devices(ARRAY_AND_SIZE(devices));
1011 }
1012 
1013 MACHINE_START(MAGICIAN, "HTC Magician")
1014         .atag_offset    = 0x100,
1015         .map_io         = pxa27x_map_io,
1016         .nr_irqs        = MAGICIAN_NR_IRQS,
1017         .init_irq       = pxa27x_init_irq,
1018         .handle_irq     = pxa27x_handle_irq,
1019         .init_machine   = magician_init,
1020         .init_time      = pxa_timer_init,
1021         .restart        = pxa_restart,
1022 MACHINE_END
1023 

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