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/platform_data/i2c-pxa.h>
31 
32 #include <mach/hardware.h>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/system_info.h>
36 
37 #include "pxa27x.h"
38 #include <mach/magician.h>
39 #include <linux/platform_data/video-pxafb.h>
40 #include <linux/platform_data/mmc-pxamci.h>
41 #include <linux/platform_data/irda-pxaficp.h>
42 #include <linux/platform_data/usb-ohci-pxa27x.h>
43 
44 #include <linux/regulator/max1586.h>
45 
46 #include <linux/platform_data/pxa2xx_udc.h>
47 
48 #include "udc.h"
49 #include "pxa27x-udc.h"
50 #include "devices.h"
51 #include "generic.h"
52 
53 #include <linux/spi/spi.h>
54 #include <linux/spi/pxa2xx_spi.h>
55 #include <linux/spi/ads7846.h>
56 
57 static unsigned long magician_pin_config[] __initdata = {
58 
59 	/* SDRAM and Static Memory I/O Signals */
60 	GPIO20_nSDCS_2,
61 	GPIO21_nSDCS_3,
62 	GPIO15_nCS_1,
63 	GPIO78_nCS_2,	/* PASIC3 */
64 	GPIO79_nCS_3,	/* EGPIO CPLD */
65 	GPIO80_nCS_4,
66 	GPIO33_nCS_5,
67 
68 	/* I2C UDA1380 + OV9640 */
69 	GPIO117_I2C_SCL,
70 	GPIO118_I2C_SDA,
71 
72 	/* PWM 0 - LCD backlight */
73 	GPIO16_PWM0_OUT,
74 
75 	/* I2S UDA1380 capture */
76 	GPIO28_I2S_BITCLK_OUT,
77 	GPIO29_I2S_SDATA_IN,
78 	GPIO31_I2S_SYNC,
79 	GPIO113_I2S_SYSCLK,
80 
81 	/* SSP 1 UDA1380 playback */
82 	GPIO23_SSP1_SCLK,
83 	GPIO24_SSP1_SFRM,
84 	GPIO25_SSP1_TXD,
85 
86 	/* SSP 2 TSC2046 touchscreen */
87 	GPIO19_SSP2_SCLK,
88 	MFP_CFG_OUT(GPIO14, AF0, DRIVE_HIGH),	/* frame as GPIO */
89 	GPIO89_SSP2_TXD,
90 	GPIO88_SSP2_RXD,
91 
92 	/* MMC/SD/SDHC slot */
93 	GPIO32_MMC_CLK,
94 	GPIO92_MMC_DAT_0,
95 	GPIO109_MMC_DAT_1,
96 	GPIO110_MMC_DAT_2,
97 	GPIO111_MMC_DAT_3,
98 	GPIO112_MMC_CMD,
99 
100 	/* LCD */
101 	GPIOxx_LCD_TFT_16BPP,
102 
103 	/* QCI camera interface */
104 	GPIO12_CIF_DD_7,
105 	GPIO17_CIF_DD_6,
106 	GPIO50_CIF_DD_3,
107 	GPIO51_CIF_DD_2,
108 	GPIO52_CIF_DD_4,
109 	GPIO53_CIF_MCLK,
110 	GPIO54_CIF_PCLK,
111 	GPIO55_CIF_DD_1,
112 	GPIO81_CIF_DD_0,
113 	GPIO82_CIF_DD_5,
114 	GPIO84_CIF_FV,
115 	GPIO85_CIF_LV,
116 
117 	/* Magician specific input GPIOs */
118 	GPIO9_GPIO,	/* unknown */
119 	GPIO10_GPIO,	/* GSM_IRQ */
120 	GPIO13_GPIO,	/* CPLD_IRQ */
121 	GPIO107_GPIO,	/* DS1WM_IRQ */
122 	GPIO108_GPIO,	/* GSM_READY */
123 	GPIO115_GPIO,	/* nPEN_IRQ */
124 };
125 
126 /*
127  * IrDA
128  */
129 
130 static struct pxaficp_platform_data magician_ficp_info = {
131 	.gpio_pwdown		= GPIO83_MAGICIAN_nIR_EN,
132 	.transceiver_cap	= IR_SIRMODE | IR_OFF,
133 	.gpio_pwdown_inverted	= 0,
134 };
135 
136 /*
137  * GPIO Keys
138  */
139 
140 #define INIT_KEY(_code, _gpio, _desc)	\
141 	{				\
142 		.code	= KEY_##_code,	\
143 		.gpio	= _gpio,	\
144 		.desc	= _desc,	\
145 		.type	= EV_KEY,	\
146 		.wakeup	= 1,		\
147 	}
148 
149 static struct gpio_keys_button magician_button_table[] = {
150 	INIT_KEY(POWER,      GPIO0_MAGICIAN_KEY_POWER,      "Power button"),
151 	INIT_KEY(ESC,        GPIO37_MAGICIAN_KEY_HANGUP,    "Hangup button"),
152 	INIT_KEY(F10,        GPIO38_MAGICIAN_KEY_CONTACTS,  "Contacts button"),
153 	INIT_KEY(CALENDAR,   GPIO90_MAGICIAN_KEY_CALENDAR,  "Calendar button"),
154 	INIT_KEY(CAMERA,     GPIO91_MAGICIAN_KEY_CAMERA,    "Camera button"),
155 	INIT_KEY(UP,         GPIO93_MAGICIAN_KEY_UP,        "Up button"),
156 	INIT_KEY(DOWN,       GPIO94_MAGICIAN_KEY_DOWN,      "Down button"),
157 	INIT_KEY(LEFT,       GPIO95_MAGICIAN_KEY_LEFT,      "Left button"),
158 	INIT_KEY(RIGHT,      GPIO96_MAGICIAN_KEY_RIGHT,     "Right button"),
159 	INIT_KEY(KPENTER,    GPIO97_MAGICIAN_KEY_ENTER,     "Action button"),
160 	INIT_KEY(RECORD,     GPIO98_MAGICIAN_KEY_RECORD,    "Record button"),
161 	INIT_KEY(VOLUMEUP,   GPIO100_MAGICIAN_KEY_VOL_UP,   "Volume up"),
162 	INIT_KEY(VOLUMEDOWN, GPIO101_MAGICIAN_KEY_VOL_DOWN, "Volume down"),
163 	INIT_KEY(PHONE,      GPIO102_MAGICIAN_KEY_PHONE,    "Phone button"),
164 	INIT_KEY(PLAY,       GPIO99_MAGICIAN_HEADPHONE_IN,  "Headset button"),
165 };
166 
167 static struct gpio_keys_platform_data gpio_keys_data = {
168 	.buttons	= magician_button_table,
169 	.nbuttons	= ARRAY_SIZE(magician_button_table),
170 };
171 
172 static struct platform_device gpio_keys = {
173 	.name	= "gpio-keys",
174 	.dev	= {
175 		.platform_data = &gpio_keys_data,
176 	},
177 	.id	= -1,
178 };
179 
180 /*
181  * EGPIO (Xilinx CPLD)
182  *
183  * 32-bit aligned 8-bit registers
184  * 16 possible registers (reg windows size), only 7 used:
185  * 3x output, 1x irq, 3x input
186  */
187 
188 static struct resource egpio_resources[] = {
189 	[0] = {
190 		.start	= PXA_CS3_PHYS,
191 		.end	= PXA_CS3_PHYS + 0x20 - 1,
192 		.flags	= IORESOURCE_MEM,
193 	},
194 	[1] = {
195 		.start	= PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
196 		.end	= PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
197 		.flags	= IORESOURCE_IRQ,
198 	},
199 };
200 
201 static struct htc_egpio_chip egpio_chips[] = {
202 	[0] = {
203 		.reg_start	= 0,
204 		.gpio_base	= MAGICIAN_EGPIO(0, 0),
205 		.num_gpios	= 24,
206 		.direction	= HTC_EGPIO_OUTPUT,
207 		/*
208 		 * Depends on modules configuration
209 		 */
210 		.initial_values	= 0x40, /* EGPIO_MAGICIAN_GSM_RESET */
211 	},
212 	[1] = {
213 		.reg_start	= 4,
214 		.gpio_base	= MAGICIAN_EGPIO(4, 0),
215 		.num_gpios	= 24,
216 		.direction	= HTC_EGPIO_INPUT,
217 	},
218 };
219 
220 static struct htc_egpio_platform_data egpio_info = {
221 	.reg_width	= 8,
222 	.bus_width	= 32,
223 	.irq_base	= IRQ_BOARD_START,
224 	.num_irqs	= 4,
225 	.ack_register	= 3,
226 	.chip		= egpio_chips,
227 	.num_chips	= ARRAY_SIZE(egpio_chips),
228 };
229 
230 static struct platform_device egpio = {
231 	.name		= "htc-egpio",
232 	.id		= -1,
233 	.resource	= egpio_resources,
234 	.num_resources	= ARRAY_SIZE(egpio_resources),
235 	.dev = {
236 		.platform_data = &egpio_info,
237 	},
238 };
239 
240 /*
241  * PXAFB LCD - Toppoly TD028STEB1 or Samsung LTP280QV
242  */
243 
244 static struct pxafb_mode_info toppoly_modes[] = {
245 	{
246 		.pixclock	= 96153,
247 		.bpp		= 16,
248 		.xres		= 240,
249 		.yres		= 320,
250 		.hsync_len	= 11,
251 		.vsync_len	= 3,
252 		.left_margin	= 19,
253 		.upper_margin	= 2,
254 		.right_margin	= 10,
255 		.lower_margin	= 2,
256 		.sync		= 0,
257 	},
258 };
259 
260 static struct pxafb_mode_info samsung_modes[] = {
261 	{
262 		.pixclock	= 226469,
263 		.bpp		= 16,
264 		.xres		= 240,
265 		.yres		= 320,
266 		.hsync_len	= 8,
267 		.vsync_len	= 4,
268 		.left_margin	= 9,
269 		.upper_margin	= 4,
270 		.right_margin	= 9,
271 		.lower_margin	= 4,
272 		.sync	= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
273 	},
274 };
275 
toppoly_lcd_power(int on,struct fb_var_screeninfo * si)276 static void toppoly_lcd_power(int on, struct fb_var_screeninfo *si)
277 {
278 	pr_debug("Toppoly LCD power: %s\n", on ? "on" : "off");
279 
280 	if (on) {
281 		gpio_set_value(EGPIO_MAGICIAN_TOPPOLY_POWER, 1);
282 		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
283 		udelay(2000);
284 		gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
285 		udelay(2000);
286 		/* FIXME: enable LCDC here */
287 		udelay(2000);
288 		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
289 		udelay(2000);
290 		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
291 	} else {
292 		msleep(15);
293 		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
294 		udelay(500);
295 		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
296 		udelay(1000);
297 		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
298 		gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
299 	}
300 }
301 
samsung_lcd_power(int on,struct fb_var_screeninfo * si)302 static void samsung_lcd_power(int on, struct fb_var_screeninfo *si)
303 {
304 	pr_debug("Samsung LCD power: %s\n", on ? "on" : "off");
305 
306 	if (on) {
307 		if (system_rev < 3)
308 			gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 1);
309 		else
310 			gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
311 		mdelay(6);
312 		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
313 		mdelay(6);	/* Avdd -> Voff >5ms */
314 		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
315 		mdelay(16);	/* Voff -> Von >(5+10)ms */
316 		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
317 	} else {
318 		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
319 		mdelay(16);
320 		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
321 		mdelay(6);
322 		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
323 		mdelay(6);
324 		if (system_rev < 3)
325 			gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 0);
326 		else
327 			gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
328 	}
329 }
330 
331 static struct pxafb_mach_info toppoly_info = {
332 	.modes			= toppoly_modes,
333 	.num_modes		= 1,
334 	.fixed_modes		= 1,
335 	.lcd_conn		= LCD_COLOR_TFT_16BPP,
336 	.pxafb_lcd_power	= toppoly_lcd_power,
337 };
338 
339 static struct pxafb_mach_info samsung_info = {
340 	.modes			= samsung_modes,
341 	.num_modes		= 1,
342 	.fixed_modes		= 1,
343 	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
344 		LCD_ALTERNATE_MAPPING,
345 	.pxafb_lcd_power	= samsung_lcd_power,
346 };
347 
348 /*
349  * Backlight
350  */
351 
352 static struct pwm_lookup magician_pwm_lookup[] = {
353 	PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 30923,
354 		   PWM_POLARITY_NORMAL),
355 };
356 
357  /*
358  * fixed regulator for pwm_backlight
359  */
360 
361 static struct regulator_consumer_supply pwm_backlight_supply[] = {
362 	REGULATOR_SUPPLY("power", "pwm_backlight"),
363 };
364 
365 
366 static struct gpio magician_bl_gpios[] = {
367 	{ EGPIO_MAGICIAN_BL_POWER,	GPIOF_DIR_OUT, "Backlight power" },
368 	{ EGPIO_MAGICIAN_BL_POWER2,	GPIOF_DIR_OUT, "Backlight power 2" },
369 };
370 
magician_backlight_init(struct device * dev)371 static int magician_backlight_init(struct device *dev)
372 {
373 	return gpio_request_array(ARRAY_AND_SIZE(magician_bl_gpios));
374 }
375 
magician_backlight_notify(struct device * dev,int brightness)376 static int magician_backlight_notify(struct device *dev, int brightness)
377 {
378 	pr_debug("Brightness = %i\n", brightness);
379 	gpio_set_value(EGPIO_MAGICIAN_BL_POWER, brightness);
380 	if (brightness >= 200) {
381 		gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 1);
382 		return brightness - 72;
383 	} else {
384 		gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 0);
385 		return brightness;
386 	}
387 }
388 
magician_backlight_exit(struct device * dev)389 static void magician_backlight_exit(struct device *dev)
390 {
391 	gpio_free_array(ARRAY_AND_SIZE(magician_bl_gpios));
392 }
393 
394 /*
395  * LCD PWM backlight (main)
396  *
397  * MP1521 frequency should be:
398  *	100-400 Hz = 2 .5*10^6 - 10 *10^6 ns
399  */
400 
401 static struct platform_pwm_backlight_data backlight_data = {
402 	.max_brightness	= 272,
403 	.dft_brightness	= 100,
404 	.init		= magician_backlight_init,
405 	.notify		= magician_backlight_notify,
406 	.exit		= magician_backlight_exit,
407 };
408 
409 static struct platform_device backlight = {
410 	.name	= "pwm-backlight",
411 	.id	= -1,
412 	.dev	= {
413 		.parent		= &pxa27x_device_pwm0.dev,
414 		.platform_data	= &backlight_data,
415 	},
416 };
417 
418 /*
419  * GPIO LEDs, Phone keys backlight, vibra
420  */
421 
422 static struct gpio_led gpio_leds[] = {
423 	{
424 		.name = "magician::vibra",
425 		.default_trigger = "none",
426 		.gpio = GPIO22_MAGICIAN_VIBRA_EN,
427 	},
428 	{
429 		.name = "magician::phone_bl",
430 		.default_trigger = "backlight",
431 		.gpio = GPIO103_MAGICIAN_LED_KP,
432 	},
433 };
434 
435 static struct gpio_led_platform_data gpio_led_info = {
436 	.leds = gpio_leds,
437 	.num_leds = ARRAY_SIZE(gpio_leds),
438 };
439 
440 static struct platform_device leds_gpio = {
441 	.name	= "leds-gpio",
442 	.id	= -1,
443 	.dev	= {
444 		.platform_data = &gpio_led_info,
445 	},
446 };
447 
448 /*
449  * PASIC3 with DS1WM
450  */
451 
452 static struct resource pasic3_resources[] = {
453 	[0] = {
454 		.start	= PXA_CS2_PHYS,
455 		.end	= PXA_CS2_PHYS + 0x1b,
456 		.flags	= IORESOURCE_MEM,
457 	},
458 	/* No IRQ handler in the PASIC3, DS1WM needs an external IRQ */
459 	[1] = {
460 		.start	= PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
461 		.end	= PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
462 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
463 	}
464 };
465 
466 static struct pasic3_platform_data pasic3_platform_data = {
467 	.clock_rate = 4000000,
468 };
469 
470 static struct platform_device pasic3 = {
471 	.name		= "pasic3",
472 	.id		= -1,
473 	.num_resources	= ARRAY_SIZE(pasic3_resources),
474 	.resource	= pasic3_resources,
475 	.dev = {
476 		.platform_data = &pasic3_platform_data,
477 	},
478 };
479 
480 /*
481  * PXA UDC
482  */
483 
magician_udc_command(int cmd)484 static void magician_udc_command(int cmd)
485 {
486 	if (cmd == PXA2XX_UDC_CMD_CONNECT)
487 		UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE;
488 	else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
489 		UP2OCR &= ~(UP2OCR_DPPUE | UP2OCR_DPPUBE);
490 }
491 
492 static struct pxa2xx_udc_mach_info magician_udc_info __initdata = {
493 	.udc_command	= magician_udc_command,
494 	.gpio_pullup	= GPIO27_MAGICIAN_USBC_PUEN,
495 };
496 
497 /*
498  * USB device VBus detection
499  */
500 
501 static struct resource gpio_vbus_resource = {
502 	.flags	= IORESOURCE_IRQ,
503 	.start	= IRQ_MAGICIAN_VBUS,
504 	.end	= IRQ_MAGICIAN_VBUS,
505 };
506 
507 static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
508 	.dev_id = "gpio-vbus",
509 	.table = {
510 		/*
511 		 * EGPIO on register 4 index 1, the second EGPIO chip
512 		 * starts at register 4 so this will be at index 1 on that
513 		 * chip.
514 		 */
515 		GPIO_LOOKUP("htc-egpio-1", 1,
516 			    "vbus", GPIO_ACTIVE_HIGH),
517 		GPIO_LOOKUP("gpio-pxa", GPIO27_MAGICIAN_USBC_PUEN,
518 			    "pullup", GPIO_ACTIVE_HIGH),
519 		{ },
520 	},
521 };
522 
523 static struct platform_device gpio_vbus = {
524 	.name		= "gpio-vbus",
525 	.id		= -1,
526 	.num_resources	= 1,
527 	.resource	= &gpio_vbus_resource,
528 };
529 
530 /*
531  * External power
532  */
533 
magician_supply_init(struct device * dev)534 static int magician_supply_init(struct device *dev)
535 {
536 	int ret = -1;
537 
538 	ret = gpio_request(EGPIO_MAGICIAN_CABLE_TYPE, "Cable is AC charger");
539 	if (ret) {
540 		pr_err("Cannot request AC/USB charger GPIO (%i)\n", ret);
541 		goto err_ac;
542 	}
543 
544 	ret = gpio_request(EGPIO_MAGICIAN_CABLE_INSERTED, "Cable inserted");
545 	if (ret) {
546 		pr_err("Cannot request cable detection GPIO (%i)\n", ret);
547 		goto err_usb;
548 	}
549 
550 	return 0;
551 
552 err_usb:
553 	gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
554 err_ac:
555 	return ret;
556 }
557 
magician_set_charge(int flags)558 static void magician_set_charge(int flags)
559 {
560 	if (flags & PDA_POWER_CHARGE_AC) {
561 		pr_debug("Charging from AC\n");
562 		gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
563 	} else if (flags & PDA_POWER_CHARGE_USB) {
564 		pr_debug("Charging from USB\n");
565 		gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
566 	} else {
567 		pr_debug("Charging disabled\n");
568 		gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 0);
569 	}
570 }
571 
magician_is_ac_online(void)572 static int magician_is_ac_online(void)
573 {
574 	return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
575 		gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE); /* AC=1 */
576 }
577 
magician_is_usb_online(void)578 static int magician_is_usb_online(void)
579 {
580 	return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
581 		(!gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE)); /* USB=0 */
582 }
583 
magician_supply_exit(struct device * dev)584 static void magician_supply_exit(struct device *dev)
585 {
586 	gpio_free(EGPIO_MAGICIAN_CABLE_INSERTED);
587 	gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
588 }
589 
590 static char *magician_supplicants[] = {
591 	"ds2760-battery.0", "backup-battery"
592 };
593 
594 static struct pda_power_pdata power_supply_info = {
595 	.init			= magician_supply_init,
596 	.exit			= magician_supply_exit,
597 	.is_ac_online		= magician_is_ac_online,
598 	.is_usb_online		= magician_is_usb_online,
599 	.set_charge		= magician_set_charge,
600 	.supplied_to		= magician_supplicants,
601 	.num_supplicants	= ARRAY_SIZE(magician_supplicants),
602 };
603 
604 static struct resource power_supply_resources[] = {
605 	[0] = {
606 		.name	= "ac",
607 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
608 			IORESOURCE_IRQ_LOWEDGE,
609 		.start	= IRQ_MAGICIAN_VBUS,
610 		.end	= IRQ_MAGICIAN_VBUS,
611 	},
612 	[1] = {
613 		.name	= "usb",
614 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
615 			IORESOURCE_IRQ_LOWEDGE,
616 		.start	= IRQ_MAGICIAN_VBUS,
617 		.end	= IRQ_MAGICIAN_VBUS,
618 	},
619 };
620 
621 static struct platform_device power_supply = {
622 	.name	= "pda-power",
623 	.id	= -1,
624 	.dev = {
625 		.platform_data = &power_supply_info,
626 	},
627 	.resource	= power_supply_resources,
628 	.num_resources	= ARRAY_SIZE(power_supply_resources),
629 };
630 
631 /*
632  * Battery charger
633  */
634 
635 static struct regulator_consumer_supply bq24022_consumers[] = {
636 	REGULATOR_SUPPLY("vbus_draw", NULL),
637 	REGULATOR_SUPPLY("ac_draw", NULL),
638 };
639 
640 static struct regulator_init_data bq24022_init_data = {
641 	.constraints = {
642 		.max_uA		= 500000,
643 		.valid_ops_mask	= REGULATOR_CHANGE_CURRENT |
644 			REGULATOR_CHANGE_STATUS,
645 	},
646 	.num_consumer_supplies	= ARRAY_SIZE(bq24022_consumers),
647 	.consumer_supplies	= bq24022_consumers,
648 };
649 
650 
651 static enum gpiod_flags bq24022_gpiod_gflags[] = { GPIOD_OUT_LOW };
652 
653 static struct gpio_regulator_state bq24022_states[] = {
654 	{ .value = 100000, .gpios = (0 << 0) },
655 	{ .value = 500000, .gpios = (1 << 0) },
656 };
657 
658 static struct gpio_regulator_config bq24022_info = {
659 	.supply_name		= "bq24022",
660 
661 	.enabled_at_boot	= 1,
662 
663 	.gflags = bq24022_gpiod_gflags,
664 	.ngpios = ARRAY_SIZE(bq24022_gpiod_gflags),
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 static struct gpiod_lookup_table bq24022_gpiod_table = {
682 	.dev_id = "gpio-regulator",
683 	.table = {
684 		GPIO_LOOKUP("gpio-pxa", EGPIO_MAGICIAN_BQ24022_ISET2,
685 			    NULL, GPIO_ACTIVE_HIGH),
686 		GPIO_LOOKUP("gpio-pxa", GPIO30_MAGICIAN_BQ24022_nCHARGE_EN,
687 			    "enable", GPIO_ACTIVE_LOW),
688 		{ },
689 	},
690 };
691 
692 /*
693  * fixed regulator for ads7846
694  */
695 
696 static struct regulator_consumer_supply ads7846_supply =
697 	REGULATOR_SUPPLY("vcc", "spi2.0");
698 
699 static struct regulator_init_data vads7846_regulator = {
700 	.constraints	= {
701 		.valid_ops_mask	= REGULATOR_CHANGE_STATUS,
702 	},
703 	.num_consumer_supplies	= 1,
704 	.consumer_supplies	= &ads7846_supply,
705 };
706 
707 static struct fixed_voltage_config vads7846 = {
708 	.supply_name	= "vads7846",
709 	.microvolts	= 3300000, /* probably */
710 	.startup_delay	= 0,
711 	.init_data	= &vads7846_regulator,
712 };
713 
714 static struct platform_device vads7846_device = {
715 	.name	= "reg-fixed-voltage",
716 	.id	= -1,
717 	.dev	= {
718 		.platform_data	= &vads7846,
719 	},
720 };
721 
722 /*
723  * Vcore regulator MAX1587A
724  */
725 
726 static struct regulator_consumer_supply magician_max1587a_consumers[] = {
727 	REGULATOR_SUPPLY("vcc_core", NULL),
728 };
729 
730 static struct regulator_init_data magician_max1587a_v3_info = {
731 	.constraints = {
732 		.name		= "vcc_core range",
733 		.min_uV		= 700000,
734 		.max_uV		= 1475000,
735 		.always_on	= 1,
736 		.valid_ops_mask	= REGULATOR_CHANGE_VOLTAGE,
737 	},
738 	.consumer_supplies	= magician_max1587a_consumers,
739 	.num_consumer_supplies	= ARRAY_SIZE(magician_max1587a_consumers),
740 };
741 
742 static struct max1586_subdev_data magician_max1587a_subdevs[] = {
743 	{
744 		.name		= "vcc_core",
745 		.id		= MAX1586_V3,
746 		.platform_data	= &magician_max1587a_v3_info,
747 	}
748 };
749 
750 static struct max1586_platform_data magician_max1587a_info = {
751 	.subdevs     = magician_max1587a_subdevs,
752 	.num_subdevs = ARRAY_SIZE(magician_max1587a_subdevs),
753 	/*
754 	 * NOTICE measured directly on the PCB (board_id == 0x3a), but
755 	 * if R24 is present, it will boost the voltage
756 	 * (write 1.475V, get 1.645V and smoke)
757 	 */
758 	.v3_gain     = MAX1586_GAIN_NO_R24,
759 };
760 
761 static struct i2c_board_info magician_pwr_i2c_board_info[] __initdata = {
762 	{
763 		I2C_BOARD_INFO("max1586", 0x14),
764 		.platform_data	= &magician_max1587a_info,
765 	},
766 };
767 
768 /*
769  * MMC/SD
770  */
771 
magician_mci_init(struct device * dev,irq_handler_t detect_irq,void * data)772 static int magician_mci_init(struct device *dev,
773 	irq_handler_t detect_irq, void *data)
774 {
775 	return request_irq(IRQ_MAGICIAN_SD, detect_irq, 0,
776 		"mmc card detect", data);
777 }
778 
magician_mci_exit(struct device * dev,void * data)779 static void magician_mci_exit(struct device *dev, void *data)
780 {
781 	free_irq(IRQ_MAGICIAN_SD, data);
782 }
783 
784 static struct pxamci_platform_data magician_mci_info = {
785 	.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
786 	.init			= magician_mci_init,
787 	.exit			= magician_mci_exit,
788 	.gpio_card_ro_invert	= 1,
789 };
790 
791 /*
792  * Write protect on EGPIO register 5 index 4, this is on the second HTC
793  * EGPIO chip which starts at register 4, so we need offset 8+4=12 on that
794  * particular chip.
795  */
796 #define EGPIO_MAGICIAN_nSD_READONLY_OFFSET 12
797 /*
798  * Power on EGPIO register 2 index 0, so this is on the first HTC EGPIO chip
799  * starting at register 0 so we need offset 2*8+0 = 16 on that chip.
800  */
801 #define EGPIO_MAGICIAN_nSD_POWER_OFFSET 16
802 
803 static struct gpiod_lookup_table magician_mci_gpio_table = {
804 	.dev_id = "pxa2xx-mci.0",
805 	.table = {
806 		GPIO_LOOKUP("htc-egpio-1", EGPIO_MAGICIAN_nSD_READONLY_OFFSET,
807 			    "wp", GPIO_ACTIVE_HIGH),
808 		GPIO_LOOKUP("htc-egpio-0", EGPIO_MAGICIAN_nSD_POWER_OFFSET,
809 			    "power", GPIO_ACTIVE_HIGH),
810 		{ },
811 	},
812 };
813 
814 /*
815  * USB OHCI
816  */
817 
818 static struct pxaohci_platform_data magician_ohci_info = {
819 	.port_mode	= PMM_PERPORT_MODE,
820 	/* port1: CSR Bluetooth, port2: OTG with UDC */
821 	.flags		= ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
822 	.power_budget	= 0,
823 	.power_on_delay = 100,
824 };
825 
826 /*
827  * StrataFlash
828  */
829 
magician_flash_init(struct platform_device * pdev)830 static int magician_flash_init(struct platform_device *pdev)
831 {
832 	int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable");
833 
834 	if (ret) {
835 		pr_err("Cannot request flash enable GPIO (%i)\n", ret);
836 		return ret;
837 	}
838 
839 	ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1);
840 	if (ret) {
841 		pr_err("Cannot set direction for flash enable (%i)\n", ret);
842 		gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
843 	}
844 
845 	return ret;
846 }
847 
magician_set_vpp(struct platform_device * pdev,int vpp)848 static void magician_set_vpp(struct platform_device *pdev, int vpp)
849 {
850 	gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
851 }
852 
magician_flash_exit(struct platform_device * pdev)853 static void magician_flash_exit(struct platform_device *pdev)
854 {
855 	gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
856 }
857 
858 static struct resource strataflash_resource = {
859 	.start	= PXA_CS0_PHYS,
860 	.end	= PXA_CS0_PHYS + SZ_64M - 1,
861 	.flags	= IORESOURCE_MEM,
862 };
863 
864 static struct mtd_partition magician_flash_parts[] = {
865 	{
866 		.name		= "Bootloader",
867 		.offset		= 0x0,
868 		.size		= 0x40000,
869 		.mask_flags	= MTD_WRITEABLE, /* EXPERIMENTAL */
870 	},
871 	{
872 		.name		= "Linux Kernel",
873 		.offset		= 0x40000,
874 		.size		= MTDPART_SIZ_FULL,
875 	},
876 };
877 
878 /*
879  * physmap-flash driver
880  */
881 
882 static struct physmap_flash_data strataflash_data = {
883 	.width		= 4,
884 	.init		= magician_flash_init,
885 	.set_vpp	= magician_set_vpp,
886 	.exit		= magician_flash_exit,
887 	.parts		= magician_flash_parts,
888 	.nr_parts	= ARRAY_SIZE(magician_flash_parts),
889 };
890 
891 static struct platform_device strataflash = {
892 	.name		= "physmap-flash",
893 	.id		= -1,
894 	.resource	= &strataflash_resource,
895 	.num_resources	= 1,
896 	.dev = {
897 		.platform_data = &strataflash_data,
898 	},
899 };
900 
901 /*
902  * PXA I2C main controller
903  */
904 
905 static struct i2c_pxa_platform_data i2c_info = {
906 	/* OV9640 I2C device doesn't support fast mode */
907 	.fast_mode	= 0,
908 };
909 
910 /*
911  * PXA I2C power controller
912  */
913 
914 static struct i2c_pxa_platform_data magician_i2c_power_info = {
915 	.fast_mode	= 1,
916 };
917 
918 /*
919  * Touchscreen
920  */
921 
922 static struct ads7846_platform_data ads7846_pdata = {
923 	.model		= 7846,
924 	.x_plate_ohms	= 317,
925 	.y_plate_ohms	= 500,
926 	.pressure_max	= 1023,	/* with x plate ohms it will overflow 255 */
927 	.debounce_max	= 3,	/* first readout is always bad */
928 	.debounce_tol	= 30,
929 	.debounce_rep	= 0,
930 	.gpio_pendown	= GPIO115_MAGICIAN_nPEN_IRQ,
931 	.keep_vref_on	= 1,
932 	.wakeup		= true,
933 	.vref_delay_usecs		= 100,
934 	.penirq_recheck_delay_usecs	= 100,
935 };
936 
937 struct pxa2xx_spi_chip tsc2046_chip_info = {
938 	.tx_threshold	= 1,
939 	.rx_threshold	= 2,
940 	.timeout	= 64,
941 	/* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
942 	.gpio_cs	= GPIO14_MAGICIAN_TSC2046_CS,
943 };
944 
945 static struct pxa2xx_spi_controller magician_spi_info = {
946 	.num_chipselect	= 1,
947 	.enable_dma	= 1,
948 };
949 
950 static struct spi_board_info ads7846_spi_board_info[] __initdata = {
951 	{
952 		.modalias		= "ads7846",
953 		.bus_num		= 2,
954 		.max_speed_hz		= 2500000,
955 		.platform_data		= &ads7846_pdata,
956 		.controller_data	= &tsc2046_chip_info,
957 		.irq = PXA_GPIO_TO_IRQ(GPIO115_MAGICIAN_nPEN_IRQ),
958 	},
959 };
960 
961 /*
962  * Platform devices
963  */
964 
965 static struct platform_device *devices[] __initdata = {
966 	&gpio_keys,
967 	&egpio,
968 	&backlight,
969 	&pasic3,
970 	&bq24022,
971 	&gpio_vbus,
972 	&power_supply,
973 	&strataflash,
974 	&leds_gpio,
975 	&vads7846_device,
976 };
977 
978 static struct gpio magician_global_gpios[] = {
979 	{ GPIO13_MAGICIAN_CPLD_IRQ, GPIOF_IN, "CPLD_IRQ" },
980 	{ GPIO107_MAGICIAN_DS1WM_IRQ, GPIOF_IN, "DS1WM_IRQ" },
981 
982 	/* NOTICE valid LCD init sequence */
983 	{ GPIO106_MAGICIAN_LCD_DCDC_NRESET, GPIOF_OUT_INIT_LOW, "LCD DCDC nreset" },
984 	{ GPIO104_MAGICIAN_LCD_VOFF_EN, GPIOF_OUT_INIT_LOW, "LCD VOFF enable" },
985 	{ GPIO105_MAGICIAN_LCD_VON_EN, GPIOF_OUT_INIT_LOW, "LCD VON enable" },
986 };
987 
magician_init(void)988 static void __init magician_init(void)
989 {
990 	void __iomem *cpld;
991 	int lcd_select;
992 	int err;
993 
994 	pxa2xx_mfp_config(ARRAY_AND_SIZE(magician_pin_config));
995 	err = gpio_request_array(ARRAY_AND_SIZE(magician_global_gpios));
996 	if (err)
997 		pr_err("magician: Failed to request global GPIOs: %d\n", err);
998 
999 	pxa_set_ffuart_info(NULL);
1000 	pxa_set_btuart_info(NULL);
1001 
1002 	pwm_add_table(magician_pwm_lookup, ARRAY_SIZE(magician_pwm_lookup));
1003 
1004 	pxa_set_ficp_info(&magician_ficp_info);
1005 	pxa27x_set_i2c_power_info(&magician_i2c_power_info);
1006 	pxa_set_i2c_info(&i2c_info);
1007 
1008 	i2c_register_board_info(1,
1009 		ARRAY_AND_SIZE(magician_pwr_i2c_board_info));
1010 
1011 	gpiod_add_lookup_table(&magician_mci_gpio_table);
1012 	pxa_set_mci_info(&magician_mci_info);
1013 	pxa_set_ohci_info(&magician_ohci_info);
1014 	pxa_set_udc_info(&magician_udc_info);
1015 
1016 	/* Check LCD type we have */
1017 	cpld = ioremap(PXA_CS3_PHYS, 0x1000);
1018 	if (cpld) {
1019 		u8 board_id = __raw_readb(cpld + 0x14);
1020 
1021 		iounmap(cpld);
1022 		system_rev = board_id & 0x7;
1023 		lcd_select = board_id & 0x8;
1024 		pr_info("LCD type: %s\n", lcd_select ? "Samsung" : "Toppoly");
1025 		if (lcd_select && (system_rev < 3))
1026 			/* NOTICE valid LCD init sequence */
1027 			gpio_request_one(GPIO75_MAGICIAN_SAMSUNG_POWER,
1028 				GPIOF_OUT_INIT_LOW, "Samsung LCD Power");
1029 		pxa_set_fb_info(NULL,
1030 			lcd_select ? &samsung_info : &toppoly_info);
1031 	} else
1032 		pr_err("LCD detection: CPLD mapping failed\n");
1033 
1034 	pxa2xx_set_spi_info(2, &magician_spi_info);
1035 	spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));
1036 
1037 	regulator_register_always_on(0, "power", pwm_backlight_supply,
1038 		ARRAY_SIZE(pwm_backlight_supply), 5000000);
1039 
1040 	gpiod_add_lookup_table(&bq24022_gpiod_table);
1041 	gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
1042 	platform_add_devices(ARRAY_AND_SIZE(devices));
1043 }
1044 
1045 MACHINE_START(MAGICIAN, "HTC Magician")
1046 	.atag_offset	= 0x100,
1047 	.map_io		= pxa27x_map_io,
1048 	.nr_irqs	= MAGICIAN_NR_IRQS,
1049 	.init_irq	= pxa27x_init_irq,
1050 	.handle_irq	= pxa27x_handle_irq,
1051 	.init_machine	= magician_init,
1052 	.init_time	= pxa_timer_init,
1053 	.restart	= pxa_restart,
1054 MACHINE_END
1055