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

Version: ~ [ linux-6.1-rc7 ] ~ [ linux-6.0.10 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.80 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.156 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.225 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.267 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.300 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.334 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.302 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
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  1 // SPDX-License-Identifier: GPL-2.0-only
  2 /*
  3  * Support for HTC Magician PDA phones:
  4  * i-mate JAM, O2 Xda mini, Orange SPV M500, Qtek s100, Qtek s110
  5  * and T-Mobile MDA Compact.
  6  *
  7  * Copyright (c) 2006-2007 Philipp Zabel
  8  *
  9  * Based on hx4700.c, spitz.c and others.
 10  */
 11 
 12 #include <linux/kernel.h>
 13 #include <linux/init.h>
 14 #include <linux/platform_device.h>
 15 #include <linux/delay.h>
 16 #include <linux/gpio.h>
 17 #include <linux/gpio/machine.h>
 18 #include <linux/gpio_keys.h>
 19 #include <linux/input.h>
 20 #include <linux/mfd/htc-pasic3.h>
 21 #include <linux/mtd/physmap.h>
 22 #include <linux/pda_power.h>
 23 #include <linux/platform_data/gpio-htc-egpio.h>
 24 #include <linux/pwm.h>
 25 #include <linux/pwm_backlight.h>
 26 #include <linux/regulator/driver.h>
 27 #include <linux/regulator/fixed.h>
 28 #include <linux/regulator/gpio-regulator.h>
 29 #include <linux/regulator/machine.h>
 30 #include <linux/usb/gpio_vbus.h>
 31 #include <linux/platform_data/i2c-pxa.h>
 32 
 33 #include <mach/hardware.h>
 34 #include <asm/mach-types.h>
 35 #include <asm/mach/arch.h>
 36 #include <asm/system_info.h>
 37 
 38 #include "pxa27x.h"
 39 #include <mach/magician.h>
 40 #include <linux/platform_data/video-pxafb.h>
 41 #include <linux/platform_data/mmc-pxamci.h>
 42 #include <linux/platform_data/irda-pxaficp.h>
 43 #include <linux/platform_data/usb-ohci-pxa27x.h>
 44 
 45 #include <linux/regulator/max1586.h>
 46 
 47 #include <linux/platform_data/pxa2xx_udc.h>
 48 
 49 #include "udc.h"
 50 #include "pxa27x-udc.h"
 51 #include "devices.h"
 52 #include "generic.h"
 53 
 54 #include <linux/spi/spi.h>
 55 #include <linux/spi/pxa2xx_spi.h>
 56 #include <linux/spi/ads7846.h>
 57 
 58 static unsigned long magician_pin_config[] __initdata = {
 59 
 60         /* SDRAM and Static Memory I/O Signals */
 61         GPIO20_nSDCS_2,
 62         GPIO21_nSDCS_3,
 63         GPIO15_nCS_1,
 64         GPIO78_nCS_2,   /* PASIC3 */
 65         GPIO79_nCS_3,   /* EGPIO CPLD */
 66         GPIO80_nCS_4,
 67         GPIO33_nCS_5,
 68 
 69         /* I2C UDA1380 + OV9640 */
 70         GPIO117_I2C_SCL,
 71         GPIO118_I2C_SDA,
 72 
 73         /* PWM 0 - LCD backlight */
 74         GPIO16_PWM0_OUT,
 75 
 76         /* I2S UDA1380 capture */
 77         GPIO28_I2S_BITCLK_OUT,
 78         GPIO29_I2S_SDATA_IN,
 79         GPIO31_I2S_SYNC,
 80         GPIO113_I2S_SYSCLK,
 81 
 82         /* SSP 1 UDA1380 playback */
 83         GPIO23_SSP1_SCLK,
 84         GPIO24_SSP1_SFRM,
 85         GPIO25_SSP1_TXD,
 86 
 87         /* SSP 2 TSC2046 touchscreen */
 88         GPIO19_SSP2_SCLK,
 89         MFP_CFG_OUT(GPIO14, AF0, DRIVE_HIGH),   /* frame as GPIO */
 90         GPIO89_SSP2_TXD,
 91         GPIO88_SSP2_RXD,
 92 
 93         /* MMC/SD/SDHC slot */
 94         GPIO32_MMC_CLK,
 95         GPIO92_MMC_DAT_0,
 96         GPIO109_MMC_DAT_1,
 97         GPIO110_MMC_DAT_2,
 98         GPIO111_MMC_DAT_3,
 99         GPIO112_MMC_CMD,
100 
101         /* LCD */
102         GPIOxx_LCD_TFT_16BPP,
103 
104         /* QCI camera interface */
105         GPIO12_CIF_DD_7,
106         GPIO17_CIF_DD_6,
107         GPIO50_CIF_DD_3,
108         GPIO51_CIF_DD_2,
109         GPIO52_CIF_DD_4,
110         GPIO53_CIF_MCLK,
111         GPIO54_CIF_PCLK,
112         GPIO55_CIF_DD_1,
113         GPIO81_CIF_DD_0,
114         GPIO82_CIF_DD_5,
115         GPIO84_CIF_FV,
116         GPIO85_CIF_LV,
117 
118         /* Magician specific input GPIOs */
119         GPIO9_GPIO,     /* unknown */
120         GPIO10_GPIO,    /* GSM_IRQ */
121         GPIO13_GPIO,    /* CPLD_IRQ */
122         GPIO107_GPIO,   /* DS1WM_IRQ */
123         GPIO108_GPIO,   /* GSM_READY */
124         GPIO115_GPIO,   /* nPEN_IRQ */
125 };
126 
127 /*
128  * IrDA
129  */
130 
131 static struct pxaficp_platform_data magician_ficp_info = {
132         .gpio_pwdown            = GPIO83_MAGICIAN_nIR_EN,
133         .transceiver_cap        = IR_SIRMODE | IR_OFF,
134         .gpio_pwdown_inverted   = 0,
135 };
136 
137 /*
138  * GPIO Keys
139  */
140 
141 #define INIT_KEY(_code, _gpio, _desc)   \
142         {                               \
143                 .code   = KEY_##_code,  \
144                 .gpio   = _gpio,        \
145                 .desc   = _desc,        \
146                 .type   = EV_KEY,       \
147                 .wakeup = 1,            \
148         }
149 
150 static struct gpio_keys_button magician_button_table[] = {
151         INIT_KEY(POWER,      GPIO0_MAGICIAN_KEY_POWER,      "Power button"),
152         INIT_KEY(ESC,        GPIO37_MAGICIAN_KEY_HANGUP,    "Hangup button"),
153         INIT_KEY(F10,        GPIO38_MAGICIAN_KEY_CONTACTS,  "Contacts button"),
154         INIT_KEY(CALENDAR,   GPIO90_MAGICIAN_KEY_CALENDAR,  "Calendar button"),
155         INIT_KEY(CAMERA,     GPIO91_MAGICIAN_KEY_CAMERA,    "Camera button"),
156         INIT_KEY(UP,         GPIO93_MAGICIAN_KEY_UP,        "Up button"),
157         INIT_KEY(DOWN,       GPIO94_MAGICIAN_KEY_DOWN,      "Down button"),
158         INIT_KEY(LEFT,       GPIO95_MAGICIAN_KEY_LEFT,      "Left button"),
159         INIT_KEY(RIGHT,      GPIO96_MAGICIAN_KEY_RIGHT,     "Right button"),
160         INIT_KEY(KPENTER,    GPIO97_MAGICIAN_KEY_ENTER,     "Action button"),
161         INIT_KEY(RECORD,     GPIO98_MAGICIAN_KEY_RECORD,    "Record button"),
162         INIT_KEY(VOLUMEUP,   GPIO100_MAGICIAN_KEY_VOL_UP,   "Volume up"),
163         INIT_KEY(VOLUMEDOWN, GPIO101_MAGICIAN_KEY_VOL_DOWN, "Volume down"),
164         INIT_KEY(PHONE,      GPIO102_MAGICIAN_KEY_PHONE,    "Phone button"),
165         INIT_KEY(PLAY,       GPIO99_MAGICIAN_HEADPHONE_IN,  "Headset button"),
166 };
167 
168 static struct gpio_keys_platform_data gpio_keys_data = {
169         .buttons        = magician_button_table,
170         .nbuttons       = ARRAY_SIZE(magician_button_table),
171 };
172 
173 static struct platform_device gpio_keys = {
174         .name   = "gpio-keys",
175         .dev    = {
176                 .platform_data = &gpio_keys_data,
177         },
178         .id     = -1,
179 };
180 
181 /*
182  * EGPIO (Xilinx CPLD)
183  *
184  * 32-bit aligned 8-bit registers
185  * 16 possible registers (reg windows size), only 7 used:
186  * 3x output, 1x irq, 3x input
187  */
188 
189 static struct resource egpio_resources[] = {
190         [0] = {
191                 .start  = PXA_CS3_PHYS,
192                 .end    = PXA_CS3_PHYS + 0x20 - 1,
193                 .flags  = IORESOURCE_MEM,
194         },
195         [1] = {
196                 .start  = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
197                 .end    = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
198                 .flags  = IORESOURCE_IRQ,
199         },
200 };
201 
202 static struct htc_egpio_chip egpio_chips[] = {
203         [0] = {
204                 .reg_start      = 0,
205                 .gpio_base      = MAGICIAN_EGPIO(0, 0),
206                 .num_gpios      = 24,
207                 .direction      = HTC_EGPIO_OUTPUT,
208                 /*
209                  * Depends on modules configuration
210                  */
211                 .initial_values = 0x40, /* EGPIO_MAGICIAN_GSM_RESET */
212         },
213         [1] = {
214                 .reg_start      = 4,
215                 .gpio_base      = MAGICIAN_EGPIO(4, 0),
216                 .num_gpios      = 24,
217                 .direction      = HTC_EGPIO_INPUT,
218         },
219 };
220 
221 static struct htc_egpio_platform_data egpio_info = {
222         .reg_width      = 8,
223         .bus_width      = 32,
224         .irq_base       = IRQ_BOARD_START,
225         .num_irqs       = 4,
226         .ack_register   = 3,
227         .chip           = egpio_chips,
228         .num_chips      = ARRAY_SIZE(egpio_chips),
229 };
230 
231 static struct platform_device egpio = {
232         .name           = "htc-egpio",
233         .id             = -1,
234         .resource       = egpio_resources,
235         .num_resources  = ARRAY_SIZE(egpio_resources),
236         .dev = {
237                 .platform_data = &egpio_info,
238         },
239 };
240 
241 /*
242  * PXAFB LCD - Toppoly TD028STEB1 or Samsung LTP280QV
243  */
244 
245 static struct pxafb_mode_info toppoly_modes[] = {
246         {
247                 .pixclock       = 96153,
248                 .bpp            = 16,
249                 .xres           = 240,
250                 .yres           = 320,
251                 .hsync_len      = 11,
252                 .vsync_len      = 3,
253                 .left_margin    = 19,
254                 .upper_margin   = 2,
255                 .right_margin   = 10,
256                 .lower_margin   = 2,
257                 .sync           = 0,
258         },
259 };
260 
261 static struct pxafb_mode_info samsung_modes[] = {
262         {
263                 .pixclock       = 226469,
264                 .bpp            = 16,
265                 .xres           = 240,
266                 .yres           = 320,
267                 .hsync_len      = 8,
268                 .vsync_len      = 4,
269                 .left_margin    = 9,
270                 .upper_margin   = 4,
271                 .right_margin   = 9,
272                 .lower_margin   = 4,
273                 .sync   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
274         },
275 };
276 
277 static void toppoly_lcd_power(int on, struct fb_var_screeninfo *si)
278 {
279         pr_debug("Toppoly LCD power: %s\n", on ? "on" : "off");
280 
281         if (on) {
282                 gpio_set_value(EGPIO_MAGICIAN_TOPPOLY_POWER, 1);
283                 gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
284                 udelay(2000);
285                 gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
286                 udelay(2000);
287                 /* FIXME: enable LCDC here */
288                 udelay(2000);
289                 gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
290                 udelay(2000);
291                 gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
292         } else {
293                 msleep(15);
294                 gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
295                 udelay(500);
296                 gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
297                 udelay(1000);
298                 gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
299                 gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
300         }
301 }
302 
303 static void samsung_lcd_power(int on, struct fb_var_screeninfo *si)
304 {
305         pr_debug("Samsung LCD power: %s\n", on ? "on" : "off");
306 
307         if (on) {
308                 if (system_rev < 3)
309                         gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 1);
310                 else
311                         gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
312                 mdelay(6);
313                 gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
314                 mdelay(6);      /* Avdd -> Voff >5ms */
315                 gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
316                 mdelay(16);     /* Voff -> Von >(5+10)ms */
317                 gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
318         } else {
319                 gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
320                 mdelay(16);
321                 gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
322                 mdelay(6);
323                 gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
324                 mdelay(6);
325                 if (system_rev < 3)
326                         gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 0);
327                 else
328                         gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
329         }
330 }
331 
332 static struct pxafb_mach_info toppoly_info = {
333         .modes                  = toppoly_modes,
334         .num_modes              = 1,
335         .fixed_modes            = 1,
336         .lcd_conn               = LCD_COLOR_TFT_16BPP,
337         .pxafb_lcd_power        = toppoly_lcd_power,
338 };
339 
340 static struct pxafb_mach_info samsung_info = {
341         .modes                  = samsung_modes,
342         .num_modes              = 1,
343         .fixed_modes            = 1,
344         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
345                 LCD_ALTERNATE_MAPPING,
346         .pxafb_lcd_power        = samsung_lcd_power,
347 };
348 
349 /*
350  * Backlight
351  */
352 
353 static struct pwm_lookup magician_pwm_lookup[] = {
354         PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 30923,
355                    PWM_POLARITY_NORMAL),
356 };
357 
358  /*
359  * fixed regulator for pwm_backlight
360  */
361 
362 static struct regulator_consumer_supply pwm_backlight_supply[] = {
363         REGULATOR_SUPPLY("power", "pwm_backlight"),
364 };
365 
366 
367 static struct gpio magician_bl_gpios[] = {
368         { EGPIO_MAGICIAN_BL_POWER,      GPIOF_DIR_OUT, "Backlight power" },
369         { EGPIO_MAGICIAN_BL_POWER2,     GPIOF_DIR_OUT, "Backlight power 2" },
370 };
371 
372 static int magician_backlight_init(struct device *dev)
373 {
374         return gpio_request_array(ARRAY_AND_SIZE(magician_bl_gpios));
375 }
376 
377 static int magician_backlight_notify(struct device *dev, int brightness)
378 {
379         pr_debug("Brightness = %i\n", brightness);
380         gpio_set_value(EGPIO_MAGICIAN_BL_POWER, brightness);
381         if (brightness >= 200) {
382                 gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 1);
383                 return brightness - 72;
384         } else {
385                 gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 0);
386                 return brightness;
387         }
388 }
389 
390 static void magician_backlight_exit(struct device *dev)
391 {
392         gpio_free_array(ARRAY_AND_SIZE(magician_bl_gpios));
393 }
394 
395 /*
396  * LCD PWM backlight (main)
397  *
398  * MP1521 frequency should be:
399  *      100-400 Hz = 2 .5*10^6 - 10 *10^6 ns
400  */
401 
402 static struct platform_pwm_backlight_data backlight_data = {
403         .max_brightness = 272,
404         .dft_brightness = 100,
405         .enable_gpio    = -1,
406         .init           = magician_backlight_init,
407         .notify         = magician_backlight_notify,
408         .exit           = magician_backlight_exit,
409 };
410 
411 static struct platform_device backlight = {
412         .name   = "pwm-backlight",
413         .id     = -1,
414         .dev    = {
415                 .parent         = &pxa27x_device_pwm0.dev,
416                 .platform_data  = &backlight_data,
417         },
418 };
419 
420 /*
421  * GPIO LEDs, Phone keys backlight, vibra
422  */
423 
424 static struct gpio_led gpio_leds[] = {
425         {
426                 .name = "magician::vibra",
427                 .default_trigger = "none",
428                 .gpio = GPIO22_MAGICIAN_VIBRA_EN,
429         },
430         {
431                 .name = "magician::phone_bl",
432                 .default_trigger = "backlight",
433                 .gpio = GPIO103_MAGICIAN_LED_KP,
434         },
435 };
436 
437 static struct gpio_led_platform_data gpio_led_info = {
438         .leds = gpio_leds,
439         .num_leds = ARRAY_SIZE(gpio_leds),
440 };
441 
442 static struct platform_device leds_gpio = {
443         .name   = "leds-gpio",
444         .id     = -1,
445         .dev    = {
446                 .platform_data = &gpio_led_info,
447         },
448 };
449 
450 /*
451  * PASIC3 with DS1WM
452  */
453 
454 static struct resource pasic3_resources[] = {
455         [0] = {
456                 .start  = PXA_CS2_PHYS,
457                 .end    = PXA_CS2_PHYS + 0x1b,
458                 .flags  = IORESOURCE_MEM,
459         },
460         /* No IRQ handler in the PASIC3, DS1WM needs an external IRQ */
461         [1] = {
462                 .start  = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
463                 .end    = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
464                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
465         }
466 };
467 
468 static struct pasic3_platform_data pasic3_platform_data = {
469         .clock_rate = 4000000,
470 };
471 
472 static struct platform_device pasic3 = {
473         .name           = "pasic3",
474         .id             = -1,
475         .num_resources  = ARRAY_SIZE(pasic3_resources),
476         .resource       = pasic3_resources,
477         .dev = {
478                 .platform_data = &pasic3_platform_data,
479         },
480 };
481 
482 /*
483  * PXA UDC
484  */
485 
486 static void magician_udc_command(int cmd)
487 {
488         if (cmd == PXA2XX_UDC_CMD_CONNECT)
489                 UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE;
490         else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
491                 UP2OCR &= ~(UP2OCR_DPPUE | UP2OCR_DPPUBE);
492 }
493 
494 static struct pxa2xx_udc_mach_info magician_udc_info __initdata = {
495         .udc_command    = magician_udc_command,
496         .gpio_pullup    = GPIO27_MAGICIAN_USBC_PUEN,
497 };
498 
499 /*
500  * USB device VBus detection
501  */
502 
503 static struct resource gpio_vbus_resource = {
504         .flags  = IORESOURCE_IRQ,
505         .start  = IRQ_MAGICIAN_VBUS,
506         .end    = IRQ_MAGICIAN_VBUS,
507 };
508 
509 static struct gpio_vbus_mach_info gpio_vbus_info = {
510         .gpio_pullup    = GPIO27_MAGICIAN_USBC_PUEN,
511         .gpio_vbus      = EGPIO_MAGICIAN_CABLE_VBUS,
512 };
513 
514 static struct platform_device gpio_vbus = {
515         .name           = "gpio-vbus",
516         .id             = -1,
517         .num_resources  = 1,
518         .resource       = &gpio_vbus_resource,
519         .dev = {
520                 .platform_data = &gpio_vbus_info,
521         },
522 };
523 
524 /*
525  * External power
526  */
527 
528 static int magician_supply_init(struct device *dev)
529 {
530         int ret = -1;
531 
532         ret = gpio_request(EGPIO_MAGICIAN_CABLE_TYPE, "Cable is AC charger");
533         if (ret) {
534                 pr_err("Cannot request AC/USB charger GPIO (%i)\n", ret);
535                 goto err_ac;
536         }
537 
538         ret = gpio_request(EGPIO_MAGICIAN_CABLE_INSERTED, "Cable inserted");
539         if (ret) {
540                 pr_err("Cannot request cable detection GPIO (%i)\n", ret);
541                 goto err_usb;
542         }
543 
544         return 0;
545 
546 err_usb:
547         gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
548 err_ac:
549         return ret;
550 }
551 
552 static void magician_set_charge(int flags)
553 {
554         if (flags & PDA_POWER_CHARGE_AC) {
555                 pr_debug("Charging from AC\n");
556                 gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
557         } else if (flags & PDA_POWER_CHARGE_USB) {
558                 pr_debug("Charging from USB\n");
559                 gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
560         } else {
561                 pr_debug("Charging disabled\n");
562                 gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 0);
563         }
564 }
565 
566 static int magician_is_ac_online(void)
567 {
568         return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
569                 gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE); /* AC=1 */
570 }
571 
572 static int magician_is_usb_online(void)
573 {
574         return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
575                 (!gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE)); /* USB=0 */
576 }
577 
578 static void magician_supply_exit(struct device *dev)
579 {
580         gpio_free(EGPIO_MAGICIAN_CABLE_INSERTED);
581         gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
582 }
583 
584 static char *magician_supplicants[] = {
585         "ds2760-battery.0", "backup-battery"
586 };
587 
588 static struct pda_power_pdata power_supply_info = {
589         .init                   = magician_supply_init,
590         .exit                   = magician_supply_exit,
591         .is_ac_online           = magician_is_ac_online,
592         .is_usb_online          = magician_is_usb_online,
593         .set_charge             = magician_set_charge,
594         .supplied_to            = magician_supplicants,
595         .num_supplicants        = ARRAY_SIZE(magician_supplicants),
596 };
597 
598 static struct resource power_supply_resources[] = {
599         [0] = {
600                 .name   = "ac",
601                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
602                         IORESOURCE_IRQ_LOWEDGE,
603                 .start  = IRQ_MAGICIAN_VBUS,
604                 .end    = IRQ_MAGICIAN_VBUS,
605         },
606         [1] = {
607                 .name   = "usb",
608                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
609                         IORESOURCE_IRQ_LOWEDGE,
610                 .start  = IRQ_MAGICIAN_VBUS,
611                 .end    = IRQ_MAGICIAN_VBUS,
612         },
613 };
614 
615 static struct platform_device power_supply = {
616         .name   = "pda-power",
617         .id     = -1,
618         .dev = {
619                 .platform_data = &power_supply_info,
620         },
621         .resource       = power_supply_resources,
622         .num_resources  = ARRAY_SIZE(power_supply_resources),
623 };
624 
625 /*
626  * Battery charger
627  */
628 
629 static struct regulator_consumer_supply bq24022_consumers[] = {
630         REGULATOR_SUPPLY("vbus_draw", NULL),
631         REGULATOR_SUPPLY("ac_draw", NULL),
632 };
633 
634 static struct regulator_init_data bq24022_init_data = {
635         .constraints = {
636                 .max_uA         = 500000,
637                 .valid_ops_mask = REGULATOR_CHANGE_CURRENT |
638                         REGULATOR_CHANGE_STATUS,
639         },
640         .num_consumer_supplies  = ARRAY_SIZE(bq24022_consumers),
641         .consumer_supplies      = bq24022_consumers,
642 };
643 
644 
645 static enum gpiod_flags bq24022_gpiod_gflags[] = { GPIOD_OUT_LOW };
646 
647 static struct gpio_regulator_state bq24022_states[] = {
648         { .value = 100000, .gpios = (0 << 0) },
649         { .value = 500000, .gpios = (1 << 0) },
650 };
651 
652 static struct gpio_regulator_config bq24022_info = {
653         .supply_name            = "bq24022",
654 
655         .enabled_at_boot        = 1,
656 
657         .gflags = bq24022_gpiod_gflags,
658         .ngpios = ARRAY_SIZE(bq24022_gpiod_gflags),
659 
660         .states                 = bq24022_states,
661         .nr_states              = ARRAY_SIZE(bq24022_states),
662 
663         .type                   = REGULATOR_CURRENT,
664         .init_data              = &bq24022_init_data,
665 };
666 
667 static struct platform_device bq24022 = {
668         .name   = "gpio-regulator",
669         .id     = -1,
670         .dev    = {
671                 .platform_data = &bq24022_info,
672         },
673 };
674 
675 static struct gpiod_lookup_table bq24022_gpiod_table = {
676         .dev_id = "gpio-regulator",
677         .table = {
678                 GPIO_LOOKUP("gpio-pxa", EGPIO_MAGICIAN_BQ24022_ISET2,
679                             NULL, GPIO_ACTIVE_HIGH),
680                 GPIO_LOOKUP("gpio-pxa", GPIO30_MAGICIAN_BQ24022_nCHARGE_EN,
681                             "enable", GPIO_ACTIVE_LOW),
682                 { },
683         },
684 };
685 
686 /*
687  * fixed regulator for ads7846
688  */
689 
690 static struct regulator_consumer_supply ads7846_supply =
691         REGULATOR_SUPPLY("vcc", "spi2.0");
692 
693 static struct regulator_init_data vads7846_regulator = {
694         .constraints    = {
695                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
696         },
697         .num_consumer_supplies  = 1,
698         .consumer_supplies      = &ads7846_supply,
699 };
700 
701 static struct fixed_voltage_config vads7846 = {
702         .supply_name    = "vads7846",
703         .microvolts     = 3300000, /* probably */
704         .startup_delay  = 0,
705         .init_data      = &vads7846_regulator,
706 };
707 
708 static struct platform_device vads7846_device = {
709         .name   = "reg-fixed-voltage",
710         .id     = -1,
711         .dev    = {
712                 .platform_data  = &vads7846,
713         },
714 };
715 
716 /*
717  * Vcore regulator MAX1587A
718  */
719 
720 static struct regulator_consumer_supply magician_max1587a_consumers[] = {
721         REGULATOR_SUPPLY("vcc_core", NULL),
722 };
723 
724 static struct regulator_init_data magician_max1587a_v3_info = {
725         .constraints = {
726                 .name           = "vcc_core range",
727                 .min_uV         = 700000,
728                 .max_uV         = 1475000,
729                 .always_on      = 1,
730                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
731         },
732         .consumer_supplies      = magician_max1587a_consumers,
733         .num_consumer_supplies  = ARRAY_SIZE(magician_max1587a_consumers),
734 };
735 
736 static struct max1586_subdev_data magician_max1587a_subdevs[] = {
737         {
738                 .name           = "vcc_core",
739                 .id             = MAX1586_V3,
740                 .platform_data  = &magician_max1587a_v3_info,
741         }
742 };
743 
744 static struct max1586_platform_data magician_max1587a_info = {
745         .subdevs     = magician_max1587a_subdevs,
746         .num_subdevs = ARRAY_SIZE(magician_max1587a_subdevs),
747         /*
748          * NOTICE measured directly on the PCB (board_id == 0x3a), but
749          * if R24 is present, it will boost the voltage
750          * (write 1.475V, get 1.645V and smoke)
751          */
752         .v3_gain     = MAX1586_GAIN_NO_R24,
753 };
754 
755 static struct i2c_board_info magician_pwr_i2c_board_info[] __initdata = {
756         {
757                 I2C_BOARD_INFO("max1586", 0x14),
758                 .platform_data  = &magician_max1587a_info,
759         },
760 };
761 
762 /*
763  * MMC/SD
764  */
765 
766 static int magician_mci_init(struct device *dev,
767         irq_handler_t detect_irq, void *data)
768 {
769         return request_irq(IRQ_MAGICIAN_SD, detect_irq, 0,
770                 "mmc card detect", data);
771 }
772 
773 static void magician_mci_exit(struct device *dev, void *data)
774 {
775         free_irq(IRQ_MAGICIAN_SD, data);
776 }
777 
778 static struct pxamci_platform_data magician_mci_info = {
779         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
780         .init                   = magician_mci_init,
781         .exit                   = magician_mci_exit,
782         .gpio_card_ro_invert    = 1,
783 };
784 
785 /*
786  * Write protect on EGPIO register 5 index 4, this is on the second HTC
787  * EGPIO chip which starts at register 4, so we need offset 8+4=12 on that
788  * particular chip.
789  */
790 #define EGPIO_MAGICIAN_nSD_READONLY_OFFSET 12
791 /*
792  * Power on EGPIO register 2 index 0, so this is on the first HTC EGPIO chip
793  * starting at register 0 so we need offset 2*8+0 = 16 on that chip.
794  */
795 #define EGPIO_MAGICIAN_nSD_POWER_OFFSET 16
796 
797 static struct gpiod_lookup_table magician_mci_gpio_table = {
798         .dev_id = "pxa2xx-mci.0",
799         .table = {
800                 GPIO_LOOKUP("htc-egpio-1", EGPIO_MAGICIAN_nSD_READONLY_OFFSET,
801                             "wp", GPIO_ACTIVE_HIGH),
802                 GPIO_LOOKUP("htc-egpio-0", EGPIO_MAGICIAN_nSD_POWER_OFFSET,
803                             "power", GPIO_ACTIVE_HIGH),
804                 { },
805         },
806 };
807 
808 /*
809  * USB OHCI
810  */
811 
812 static struct pxaohci_platform_data magician_ohci_info = {
813         .port_mode      = PMM_PERPORT_MODE,
814         /* port1: CSR Bluetooth, port2: OTG with UDC */
815         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
816         .power_budget   = 0,
817         .power_on_delay = 100,
818 };
819 
820 /*
821  * StrataFlash
822  */
823 
824 static int magician_flash_init(struct platform_device *pdev)
825 {
826         int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable");
827 
828         if (ret) {
829                 pr_err("Cannot request flash enable GPIO (%i)\n", ret);
830                 return ret;
831         }
832 
833         ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1);
834         if (ret) {
835                 pr_err("Cannot set direction for flash enable (%i)\n", ret);
836                 gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
837         }
838 
839         return ret;
840 }
841 
842 static void magician_set_vpp(struct platform_device *pdev, int vpp)
843 {
844         gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
845 }
846 
847 static void magician_flash_exit(struct platform_device *pdev)
848 {
849         gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
850 }
851 
852 static struct resource strataflash_resource = {
853         .start  = PXA_CS0_PHYS,
854         .end    = PXA_CS0_PHYS + SZ_64M - 1,
855         .flags  = IORESOURCE_MEM,
856 };
857 
858 static struct mtd_partition magician_flash_parts[] = {
859         {
860                 .name           = "Bootloader",
861                 .offset         = 0x0,
862                 .size           = 0x40000,
863                 .mask_flags     = MTD_WRITEABLE, /* EXPERIMENTAL */
864         },
865         {
866                 .name           = "Linux Kernel",
867                 .offset         = 0x40000,
868                 .size           = MTDPART_SIZ_FULL,
869         },
870 };
871 
872 /*
873  * physmap-flash driver
874  */
875 
876 static struct physmap_flash_data strataflash_data = {
877         .width          = 4,
878         .init           = magician_flash_init,
879         .set_vpp        = magician_set_vpp,
880         .exit           = magician_flash_exit,
881         .parts          = magician_flash_parts,
882         .nr_parts       = ARRAY_SIZE(magician_flash_parts),
883 };
884 
885 static struct platform_device strataflash = {
886         .name           = "physmap-flash",
887         .id             = -1,
888         .resource       = &strataflash_resource,
889         .num_resources  = 1,
890         .dev = {
891                 .platform_data = &strataflash_data,
892         },
893 };
894 
895 /*
896  * PXA I2C main controller
897  */
898 
899 static struct i2c_pxa_platform_data i2c_info = {
900         /* OV9640 I2C device doesn't support fast mode */
901         .fast_mode      = 0,
902 };
903 
904 /*
905  * PXA I2C power controller
906  */
907 
908 static struct i2c_pxa_platform_data magician_i2c_power_info = {
909         .fast_mode      = 1,
910 };
911 
912 /*
913  * Touchscreen
914  */
915 
916 static struct ads7846_platform_data ads7846_pdata = {
917         .model          = 7846,
918         .x_plate_ohms   = 317,
919         .y_plate_ohms   = 500,
920         .pressure_max   = 1023, /* with x plate ohms it will overflow 255 */
921         .debounce_max   = 3,    /* first readout is always bad */
922         .debounce_tol   = 30,
923         .debounce_rep   = 0,
924         .gpio_pendown   = GPIO115_MAGICIAN_nPEN_IRQ,
925         .keep_vref_on   = 1,
926         .wakeup         = true,
927         .vref_delay_usecs               = 100,
928         .penirq_recheck_delay_usecs     = 100,
929 };
930 
931 struct pxa2xx_spi_chip tsc2046_chip_info = {
932         .tx_threshold   = 1,
933         .rx_threshold   = 2,
934         .timeout        = 64,
935         /* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
936         .gpio_cs        = GPIO14_MAGICIAN_TSC2046_CS,
937 };
938 
939 static struct pxa2xx_spi_controller magician_spi_info = {
940         .num_chipselect = 1,
941         .enable_dma     = 1,
942 };
943 
944 static struct spi_board_info ads7846_spi_board_info[] __initdata = {
945         {
946                 .modalias               = "ads7846",
947                 .bus_num                = 2,
948                 .max_speed_hz           = 2500000,
949                 .platform_data          = &ads7846_pdata,
950                 .controller_data        = &tsc2046_chip_info,
951                 .irq = PXA_GPIO_TO_IRQ(GPIO115_MAGICIAN_nPEN_IRQ),
952         },
953 };
954 
955 /*
956  * Platform devices
957  */
958 
959 static struct platform_device *devices[] __initdata = {
960         &gpio_keys,
961         &egpio,
962         &backlight,
963         &pasic3,
964         &bq24022,
965         &gpio_vbus,
966         &power_supply,
967         &strataflash,
968         &leds_gpio,
969         &vads7846_device,
970 };
971 
972 static struct gpio magician_global_gpios[] = {
973         { GPIO13_MAGICIAN_CPLD_IRQ, GPIOF_IN, "CPLD_IRQ" },
974         { GPIO107_MAGICIAN_DS1WM_IRQ, GPIOF_IN, "DS1WM_IRQ" },
975 
976         /* NOTICE valid LCD init sequence */
977         { GPIO106_MAGICIAN_LCD_DCDC_NRESET, GPIOF_OUT_INIT_LOW, "LCD DCDC nreset" },
978         { GPIO104_MAGICIAN_LCD_VOFF_EN, GPIOF_OUT_INIT_LOW, "LCD VOFF enable" },
979         { GPIO105_MAGICIAN_LCD_VON_EN, GPIOF_OUT_INIT_LOW, "LCD VON enable" },
980 };
981 
982 static void __init magician_init(void)
983 {
984         void __iomem *cpld;
985         int lcd_select;
986         int err;
987 
988         pxa2xx_mfp_config(ARRAY_AND_SIZE(magician_pin_config));
989         err = gpio_request_array(ARRAY_AND_SIZE(magician_global_gpios));
990         if (err)
991                 pr_err("magician: Failed to request global GPIOs: %d\n", err);
992 
993         pxa_set_ffuart_info(NULL);
994         pxa_set_btuart_info(NULL);
995 
996         pwm_add_table(magician_pwm_lookup, ARRAY_SIZE(magician_pwm_lookup));
997 
998         pxa_set_ficp_info(&magician_ficp_info);
999         pxa27x_set_i2c_power_info(&magician_i2c_power_info);
1000         pxa_set_i2c_info(&i2c_info);
1001 
1002         i2c_register_board_info(1,
1003                 ARRAY_AND_SIZE(magician_pwr_i2c_board_info));
1004 
1005         gpiod_add_lookup_table(&magician_mci_gpio_table);
1006         pxa_set_mci_info(&magician_mci_info);
1007         pxa_set_ohci_info(&magician_ohci_info);
1008         pxa_set_udc_info(&magician_udc_info);
1009 
1010         /* Check LCD type we have */
1011         cpld = ioremap_nocache(PXA_CS3_PHYS, 0x1000);
1012         if (cpld) {
1013                 u8 board_id = __raw_readb(cpld + 0x14);
1014 
1015                 iounmap(cpld);
1016                 system_rev = board_id & 0x7;
1017                 lcd_select = board_id & 0x8;
1018                 pr_info("LCD type: %s\n", lcd_select ? "Samsung" : "Toppoly");
1019                 if (lcd_select && (system_rev < 3))
1020                         /* NOTICE valid LCD init sequence */
1021                         gpio_request_one(GPIO75_MAGICIAN_SAMSUNG_POWER,
1022                                 GPIOF_OUT_INIT_LOW, "Samsung LCD Power");
1023                 pxa_set_fb_info(NULL,
1024                         lcd_select ? &samsung_info : &toppoly_info);
1025         } else
1026                 pr_err("LCD detection: CPLD mapping failed\n");
1027 
1028         pxa2xx_set_spi_info(2, &magician_spi_info);
1029         spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));
1030 
1031         regulator_register_always_on(0, "power", pwm_backlight_supply,
1032                 ARRAY_SIZE(pwm_backlight_supply), 5000000);
1033 
1034         gpiod_add_lookup_table(&bq24022_gpiod_table);
1035         platform_add_devices(ARRAY_AND_SIZE(devices));
1036 }
1037 
1038 MACHINE_START(MAGICIAN, "HTC Magician")
1039         .atag_offset    = 0x100,
1040         .map_io         = pxa27x_map_io,
1041         .nr_irqs        = MAGICIAN_NR_IRQS,
1042         .init_irq       = pxa27x_init_irq,
1043         .handle_irq     = pxa27x_handle_irq,
1044         .init_machine   = magician_init,
1045         .init_time      = pxa_timer_init,
1046         .restart        = pxa_restart,
1047 MACHINE_END
1048 

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