• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Support for HP iPAQ hx4700 PDAs.
4  *
5  * Copyright (c) 2008-2009 Philipp Zabel
6  *
7  * Based on code:
8  *    Copyright (c) 2004 Hewlett-Packard Company.
9  *    Copyright (c) 2005 SDG Systems, LLC
10  *    Copyright (c) 2006 Anton Vorontsov <cbou@mail.ru>
11  */
12 
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/delay.h>
17 #include <linux/fb.h>
18 #include <linux/gpio/machine.h>
19 #include <linux/gpio.h>
20 #include <linux/gpio_keys.h>
21 #include <linux/input.h>
22 #include <linux/input/navpoint.h>
23 #include <linux/lcd.h>
24 #include <linux/mfd/asic3.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/pda_power.h>
27 #include <linux/platform_data/gpio-htc-egpio.h>
28 #include <linux/pwm.h>
29 #include <linux/pwm_backlight.h>
30 #include <linux/regulator/driver.h>
31 #include <linux/regulator/gpio-regulator.h>
32 #include <linux/regulator/machine.h>
33 #include <linux/regulator/max1586.h>
34 #include <linux/spi/ads7846.h>
35 #include <linux/spi/spi.h>
36 #include <linux/spi/pxa2xx_spi.h>
37 #include <linux/usb/gpio_vbus.h>
38 #include <linux/platform_data/i2c-pxa.h>
39 
40 #include <mach/hardware.h>
41 #include <asm/mach-types.h>
42 #include <asm/mach/arch.h>
43 
44 #include "pxa27x.h"
45 #include <mach/hx4700.h>
46 #include <linux/platform_data/irda-pxaficp.h>
47 
48 #include <sound/ak4641.h>
49 #include <video/platform_lcd.h>
50 #include <video/w100fb.h>
51 
52 #include "devices.h"
53 #include "generic.h"
54 #include "udc.h"
55 
56 /* Physical address space information */
57 
58 #define ATI_W3220_PHYS  PXA_CS2_PHYS /* ATI Imageon 3220 Graphics */
59 #define ASIC3_PHYS      PXA_CS3_PHYS
60 #define ASIC3_SD_PHYS   (PXA_CS3_PHYS + 0x02000000)
61 
62 static unsigned long hx4700_pin_config[] __initdata = {
63 
64 	/* SDRAM and Static Memory I/O Signals */
65 	GPIO20_nSDCS_2,
66 	GPIO21_nSDCS_3,
67 	GPIO15_nCS_1,
68 	GPIO78_nCS_2,   /* W3220 */
69 	GPIO79_nCS_3,   /* ASIC3 */
70 	GPIO80_nCS_4,
71 	GPIO33_nCS_5,	/* EGPIO, WLAN */
72 
73 	/* PC CARD */
74 	GPIO48_nPOE,
75 	GPIO49_nPWE,
76 	GPIO50_nPIOR,
77 	GPIO51_nPIOW,
78 	GPIO54_nPCE_2,
79 	GPIO55_nPREG,
80 	GPIO56_nPWAIT,
81 	GPIO57_nIOIS16,
82 	GPIO85_nPCE_1,
83 	GPIO104_PSKTSEL,
84 
85 	/* I2C */
86 	GPIO117_I2C_SCL,
87 	GPIO118_I2C_SDA,
88 
89 	/* FFUART (RS-232) */
90 	GPIO34_FFUART_RXD,
91 	GPIO35_FFUART_CTS,
92 	GPIO36_FFUART_DCD,
93 	GPIO37_FFUART_DSR,
94 	GPIO38_FFUART_RI,
95 	GPIO39_FFUART_TXD,
96 	GPIO40_FFUART_DTR,
97 	GPIO41_FFUART_RTS,
98 
99 	/* BTUART */
100 	GPIO42_BTUART_RXD,
101 	GPIO43_BTUART_TXD_LPM_LOW,
102 	GPIO44_BTUART_CTS,
103 	GPIO45_BTUART_RTS_LPM_LOW,
104 
105 	/* STUART (IRDA) */
106 	GPIO46_STUART_RXD,
107 	GPIO47_STUART_TXD,
108 
109 	/* PWM 1 (Backlight) */
110 	GPIO17_PWM1_OUT,
111 
112 	/* I2S */
113 	GPIO28_I2S_BITCLK_OUT,
114 	GPIO29_I2S_SDATA_IN,
115 	GPIO30_I2S_SDATA_OUT,
116 	GPIO31_I2S_SYNC,
117 	GPIO113_I2S_SYSCLK,
118 
119 	/* SSP 1 (NavPoint) */
120 	GPIO23_SSP1_SCLK_IN,
121 	GPIO24_SSP1_SFRM,
122 	GPIO25_SSP1_TXD,
123 	GPIO26_SSP1_RXD,
124 
125 	/* SSP 2 (TSC2046) */
126 	GPIO19_SSP2_SCLK,
127 	GPIO86_SSP2_RXD,
128 	GPIO87_SSP2_TXD,
129 	GPIO88_GPIO | MFP_LPM_DRIVE_HIGH,	/* TSC2046_CS */
130 
131 	/* BQ24022 Regulator */
132 	GPIO72_GPIO | MFP_LPM_KEEP_OUTPUT,	/* BQ24022_nCHARGE_EN */
133 	GPIO96_GPIO | MFP_LPM_KEEP_OUTPUT,	/* BQ24022_ISET2 */
134 
135 	/* HX4700 specific input GPIOs */
136 	GPIO12_GPIO | WAKEUP_ON_EDGE_RISE,	/* ASIC3_IRQ */
137 	GPIO13_GPIO,	/* W3220_IRQ */
138 	GPIO14_GPIO,	/* nWLAN_IRQ */
139 
140 	/* HX4700 specific output GPIOs */
141 	GPIO61_GPIO | MFP_LPM_DRIVE_HIGH,	/* W3220_nRESET */
142 	GPIO71_GPIO | MFP_LPM_DRIVE_HIGH,	/* ASIC3_nRESET */
143 	GPIO81_GPIO | MFP_LPM_DRIVE_HIGH,	/* CPU_GP_nRESET */
144 	GPIO116_GPIO | MFP_LPM_DRIVE_HIGH,	/* CPU_HW_nRESET */
145 	GPIO102_GPIO | MFP_LPM_DRIVE_LOW,	/* SYNAPTICS_POWER_ON */
146 
147 	GPIO10_GPIO,	/* GSM_IRQ */
148 	GPIO13_GPIO,	/* CPLD_IRQ */
149 	GPIO107_GPIO,	/* DS1WM_IRQ */
150 	GPIO108_GPIO,	/* GSM_READY */
151 	GPIO58_GPIO,	/* TSC2046_nPENIRQ */
152 	GPIO66_GPIO,	/* nSDIO_IRQ */
153 };
154 
155 /*
156  * IRDA
157  */
158 
159 static struct pxaficp_platform_data ficp_info = {
160 	.gpio_pwdown		= GPIO105_HX4700_nIR_ON,
161 	.transceiver_cap	= IR_SIRMODE | IR_OFF,
162 };
163 
164 /*
165  * GPIO Keys
166  */
167 
168 #define INIT_KEY(_code, _gpio, _active_low, _desc)	\
169 	{						\
170 		.code       = KEY_##_code,		\
171 		.gpio       = _gpio,			\
172 		.active_low = _active_low,		\
173 		.desc       = _desc,			\
174 		.type       = EV_KEY,			\
175 		.wakeup     = 1,			\
176 	}
177 
178 static struct gpio_keys_button gpio_keys_buttons[] = {
179 	INIT_KEY(POWER,       GPIO0_HX4700_nKEY_POWER,   1, "Power button"),
180 	INIT_KEY(MAIL,        GPIO94_HX4700_KEY_MAIL,    0, "Mail button"),
181 	INIT_KEY(ADDRESSBOOK, GPIO99_HX4700_KEY_CONTACTS,0, "Contacts button"),
182 	INIT_KEY(RECORD,      GPIOD6_nKEY_RECORD,        1, "Record button"),
183 	INIT_KEY(CALENDAR,    GPIOD1_nKEY_CALENDAR,      1, "Calendar button"),
184 	INIT_KEY(HOMEPAGE,    GPIOD3_nKEY_HOME,          1, "Home button"),
185 };
186 
187 static struct gpio_keys_platform_data gpio_keys_data = {
188 	.buttons = gpio_keys_buttons,
189 	.nbuttons = ARRAY_SIZE(gpio_keys_buttons),
190 };
191 
192 static struct platform_device gpio_keys = {
193 	.name = "gpio-keys",
194 	.dev  = {
195 		.platform_data = &gpio_keys_data,
196 	},
197 	.id   = -1,
198 };
199 
200 /*
201  * Synaptics NavPoint connected to SSP1
202  */
203 
204 static struct navpoint_platform_data navpoint_platform_data = {
205 	.port	= 1,
206 	.gpio	= GPIO102_HX4700_SYNAPTICS_POWER_ON,
207 };
208 
209 static struct platform_device navpoint = {
210 	.name	= "navpoint",
211 	.id	= -1,
212 	.dev = {
213 		.platform_data = &navpoint_platform_data,
214 	},
215 };
216 
217 /*
218  * ASIC3
219  */
220 
221 static u16 asic3_gpio_config[] = {
222 	/* ASIC3 GPIO banks A and B along with some of C and D
223 	   implement the buffering for the CF slot. */
224 	ASIC3_CONFIG_GPIO(0, 1, 1, 0),
225 	ASIC3_CONFIG_GPIO(1, 1, 1, 0),
226 	ASIC3_CONFIG_GPIO(2, 1, 1, 0),
227 	ASIC3_CONFIG_GPIO(3, 1, 1, 0),
228 	ASIC3_CONFIG_GPIO(4, 1, 1, 0),
229 	ASIC3_CONFIG_GPIO(5, 1, 1, 0),
230 	ASIC3_CONFIG_GPIO(6, 1, 1, 0),
231 	ASIC3_CONFIG_GPIO(7, 1, 1, 0),
232 	ASIC3_CONFIG_GPIO(8, 1, 1, 0),
233 	ASIC3_CONFIG_GPIO(9, 1, 1, 0),
234 	ASIC3_CONFIG_GPIO(10, 1, 1, 0),
235 	ASIC3_CONFIG_GPIO(11, 1, 1, 0),
236 	ASIC3_CONFIG_GPIO(12, 1, 1, 0),
237 	ASIC3_CONFIG_GPIO(13, 1, 1, 0),
238 	ASIC3_CONFIG_GPIO(14, 1, 1, 0),
239 	ASIC3_CONFIG_GPIO(15, 1, 1, 0),
240 
241 	ASIC3_CONFIG_GPIO(16, 1, 1, 0),
242 	ASIC3_CONFIG_GPIO(17, 1, 1, 0),
243 	ASIC3_CONFIG_GPIO(18, 1, 1, 0),
244 	ASIC3_CONFIG_GPIO(19, 1, 1, 0),
245 	ASIC3_CONFIG_GPIO(20, 1, 1, 0),
246 	ASIC3_CONFIG_GPIO(21, 1, 1, 0),
247 	ASIC3_CONFIG_GPIO(22, 1, 1, 0),
248 	ASIC3_CONFIG_GPIO(23, 1, 1, 0),
249 	ASIC3_CONFIG_GPIO(24, 1, 1, 0),
250 	ASIC3_CONFIG_GPIO(25, 1, 1, 0),
251 	ASIC3_CONFIG_GPIO(26, 1, 1, 0),
252 	ASIC3_CONFIG_GPIO(27, 1, 1, 0),
253 	ASIC3_CONFIG_GPIO(28, 1, 1, 0),
254 	ASIC3_CONFIG_GPIO(29, 1, 1, 0),
255 	ASIC3_CONFIG_GPIO(30, 1, 1, 0),
256 	ASIC3_CONFIG_GPIO(31, 1, 1, 0),
257 
258 	/* GPIOC - CF, LEDs, SD */
259 	ASIC3_GPIOC0_LED0,		/* red */
260 	ASIC3_GPIOC1_LED1,		/* green */
261 	ASIC3_GPIOC2_LED2,		/* blue */
262 	ASIC3_GPIOC5_nCIOW,
263 	ASIC3_GPIOC6_nCIOR,
264 	ASIC3_GPIOC7_nPCE_1,
265 	ASIC3_GPIOC8_nPCE_2,
266 	ASIC3_GPIOC9_nPOE,
267 	ASIC3_GPIOC10_nPWE,
268 	ASIC3_GPIOC11_PSKTSEL,
269 	ASIC3_GPIOC12_nPREG,
270 	ASIC3_GPIOC13_nPWAIT,
271 	ASIC3_GPIOC14_nPIOIS16,
272 	ASIC3_GPIOC15_nPIOR,
273 
274 	/* GPIOD: input GPIOs, CF */
275 	ASIC3_GPIOD4_CF_nCD,
276 	ASIC3_GPIOD11_nCIOIS16,
277 	ASIC3_GPIOD12_nCWAIT,
278 	ASIC3_GPIOD15_nPIOW,
279 };
280 
281 static struct asic3_led asic3_leds[ASIC3_NUM_LEDS] = {
282 	[0] = {
283 		.name = "hx4700:amber",
284 		.default_trigger = "ds2760-battery.0-charging-blink-full-solid",
285 	},
286 	[1] = {
287 		.name = "hx4700:green",
288 		.default_trigger = "unused",
289 	},
290 	[2] = {
291 		.name = "hx4700:blue",
292 		.default_trigger = "hx4700-radio",
293 	},
294 };
295 
296 static struct resource asic3_resources[] = {
297 	/* GPIO part */
298 	[0] = DEFINE_RES_MEM(ASIC3_PHYS, ASIC3_MAP_SIZE_16BIT),
299 	[1] = DEFINE_RES_IRQ(PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ)),
300 	/* SD part */
301 	[2] = DEFINE_RES_MEM(ASIC3_SD_PHYS, ASIC3_MAP_SIZE_16BIT),
302 	[3] = DEFINE_RES_IRQ(PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ)),
303 };
304 
305 static struct asic3_platform_data asic3_platform_data = {
306 	.gpio_config     = asic3_gpio_config,
307 	.gpio_config_num = ARRAY_SIZE(asic3_gpio_config),
308 	.irq_base        = IRQ_BOARD_START,
309 	.gpio_base       = HX4700_ASIC3_GPIO_BASE,
310 	.clock_rate      = 4000000,
311 	.leds            = asic3_leds,
312 };
313 
314 static struct platform_device asic3 = {
315 	.name          = "asic3",
316 	.id            = -1,
317 	.resource      = asic3_resources,
318 	.num_resources = ARRAY_SIZE(asic3_resources),
319 	.dev = {
320 		.platform_data = &asic3_platform_data,
321 	},
322 };
323 
324 /*
325  * EGPIO
326  */
327 
328 static struct resource egpio_resources[] = {
329 	[0] = DEFINE_RES_MEM(PXA_CS5_PHYS, 0x4),
330 };
331 
332 static struct htc_egpio_chip egpio_chips[] = {
333 	[0] = {
334 		.reg_start = 0,
335 		.gpio_base = HX4700_EGPIO_BASE,
336 		.num_gpios = 8,
337 		.direction = HTC_EGPIO_OUTPUT,
338 	},
339 };
340 
341 static struct htc_egpio_platform_data egpio_info = {
342 	.reg_width = 16,
343 	.bus_width = 16,
344 	.chip      = egpio_chips,
345 	.num_chips = ARRAY_SIZE(egpio_chips),
346 };
347 
348 static struct platform_device egpio = {
349 	.name          = "htc-egpio",
350 	.id            = -1,
351 	.resource      = egpio_resources,
352 	.num_resources = ARRAY_SIZE(egpio_resources),
353 	.dev = {
354 		.platform_data = &egpio_info,
355 	},
356 };
357 
358 /*
359  * LCD - Sony display connected to ATI Imageon w3220
360  */
361 
sony_lcd_init(void)362 static void sony_lcd_init(void)
363 {
364 	gpio_set_value(GPIO84_HX4700_LCD_SQN, 1);
365 	gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
366 	gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
367 	gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 0);
368 	gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
369 	mdelay(10);
370 	gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
371 	gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
372 	mdelay(20);
373 
374 	gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 1);
375 	mdelay(5);
376 	gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 1);
377 
378 	/* FIXME: init w3220 registers here */
379 
380 	mdelay(5);
381 	gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 1);
382 	mdelay(10);
383 	gpio_set_value(GPIO62_HX4700_LCD_nRESET, 1);
384 	mdelay(10);
385 	gpio_set_value(GPIO59_HX4700_LCD_PC1, 1);
386 	mdelay(10);
387 	gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 1);
388 }
389 
sony_lcd_off(void)390 static void sony_lcd_off(void)
391 {
392 	gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
393 	gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
394 	mdelay(10);
395 	gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 0);
396 	mdelay(10);
397 	gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
398 	mdelay(10);
399 	gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
400 }
401 
402 #ifdef CONFIG_PM
w3220_lcd_suspend(struct w100fb_par * wfb)403 static void w3220_lcd_suspend(struct w100fb_par *wfb)
404 {
405 	sony_lcd_off();
406 }
407 
w3220_lcd_resume(struct w100fb_par * wfb)408 static void w3220_lcd_resume(struct w100fb_par *wfb)
409 {
410 	sony_lcd_init();
411 }
412 #else
413 #define w3220_lcd_resume	NULL
414 #define w3220_lcd_suspend	NULL
415 #endif
416 
417 static struct w100_tg_info w3220_tg_info = {
418 	.suspend	= w3220_lcd_suspend,
419 	.resume		= w3220_lcd_resume,
420 };
421 
422 /*  				 W3220_VGA		QVGA */
423 static struct w100_gen_regs w3220_regs = {
424 	.lcd_format =        0x00000003,
425 	.lcdd_cntl1 =        0x00000000,
426 	.lcdd_cntl2 =        0x0003ffff,
427 	.genlcd_cntl1 =      0x00abf003,	/* 0x00fff003 */
428 	.genlcd_cntl2 =      0x00000003,
429 	.genlcd_cntl3 =      0x000102aa,
430 };
431 
432 static struct w100_mode w3220_modes[] = {
433 {
434 	.xres 		= 480,
435 	.yres 		= 640,
436 	.left_margin 	= 15,
437 	.right_margin 	= 16,
438 	.upper_margin 	= 8,
439 	.lower_margin 	= 7,
440 	.crtc_ss	= 0x00000000,
441 	.crtc_ls	= 0xa1ff01f9,	/* 0x21ff01f9 */
442 	.crtc_gs	= 0xc0000000,	/* 0x40000000 */
443 	.crtc_vpos_gs	= 0x0000028f,
444 	.crtc_ps1_active = 0x00000000,	/* 0x41060010 */
445 	.crtc_rev	= 0,
446 	.crtc_dclk	= 0x80000000,
447 	.crtc_gclk	= 0x040a0104,
448 	.crtc_goe	= 0,
449 	.pll_freq 	= 95,
450 	.pixclk_divider = 4,
451 	.pixclk_divider_rotated = 4,
452 	.pixclk_src     = CLK_SRC_PLL,
453 	.sysclk_divider = 0,
454 	.sysclk_src     = CLK_SRC_PLL,
455 },
456 {
457 	.xres 		= 240,
458 	.yres 		= 320,
459 	.left_margin 	= 9,
460 	.right_margin 	= 8,
461 	.upper_margin 	= 5,
462 	.lower_margin 	= 4,
463 	.crtc_ss	= 0x80150014,
464 	.crtc_ls        = 0xa0fb00f7,
465 	.crtc_gs	= 0xc0080007,
466 	.crtc_vpos_gs	= 0x00080007,
467 	.crtc_rev	= 0x0000000a,
468 	.crtc_dclk	= 0x81700030,
469 	.crtc_gclk	= 0x8015010f,
470 	.crtc_goe	= 0x00000000,
471 	.pll_freq 	= 95,
472 	.pixclk_divider = 4,
473 	.pixclk_divider_rotated = 4,
474 	.pixclk_src     = CLK_SRC_PLL,
475 	.sysclk_divider = 0,
476 	.sysclk_src     = CLK_SRC_PLL,
477 },
478 };
479 
480 struct w100_mem_info w3220_mem_info = {
481 	.ext_cntl        = 0x09640011,
482 	.sdram_mode_reg  = 0x00600021,
483 	.ext_timing_cntl = 0x1a001545,	/* 0x15001545 */
484 	.io_cntl         = 0x7ddd7333,
485 	.size            = 0x1fffff,
486 };
487 
488 struct w100_bm_mem_info w3220_bm_mem_info = {
489 	.ext_mem_bw = 0x50413e01,
490 	.offset = 0,
491 	.ext_timing_ctl = 0x00043f7f,
492 	.ext_cntl = 0x00000010,
493 	.mode_reg = 0x00250000,
494 	.io_cntl = 0x0fff0000,
495 	.config = 0x08301480,
496 };
497 
498 static struct w100_gpio_regs w3220_gpio_info = {
499 	.init_data1 = 0xdfe00100,	/* GPIO_DATA */
500 	.gpio_dir1  = 0xffff0000,	/* GPIO_CNTL1 */
501 	.gpio_oe1   = 0x00000000,	/* GPIO_CNTL2 */
502 	.init_data2 = 0x00000000,	/* GPIO_DATA2 */
503 	.gpio_dir2  = 0x00000000,	/* GPIO_CNTL3 */
504 	.gpio_oe2   = 0x00000000,	/* GPIO_CNTL4 */
505 };
506 
507 static struct w100fb_mach_info w3220_info = {
508 	.tg        = &w3220_tg_info,
509 	.mem       = &w3220_mem_info,
510 	.bm_mem    = &w3220_bm_mem_info,
511 	.gpio      = &w3220_gpio_info,
512 	.regs      = &w3220_regs,
513 	.modelist  = w3220_modes,
514 	.num_modes = 2,
515 	.xtal_freq = 16000000,
516 };
517 
518 static struct resource w3220_resources[] = {
519 	[0] = DEFINE_RES_MEM(ATI_W3220_PHYS, SZ_16M),
520 };
521 
522 static struct platform_device w3220 = {
523 	.name	= "w100fb",
524 	.id	= -1,
525 	.dev	= {
526 		.platform_data = &w3220_info,
527 	},
528 	.num_resources = ARRAY_SIZE(w3220_resources),
529 	.resource      = w3220_resources,
530 };
531 
hx4700_lcd_set_power(struct plat_lcd_data * pd,unsigned int power)532 static void hx4700_lcd_set_power(struct plat_lcd_data *pd, unsigned int power)
533 {
534 	if (power)
535 		sony_lcd_init();
536 	else
537 		sony_lcd_off();
538 }
539 
540 static struct plat_lcd_data hx4700_lcd_data = {
541 	.set_power = hx4700_lcd_set_power,
542 };
543 
544 static struct platform_device hx4700_lcd = {
545 	.name = "platform-lcd",
546 	.id   = -1,
547 	.dev  = {
548 		.platform_data = &hx4700_lcd_data,
549 		.parent        = &w3220.dev,
550 	},
551 };
552 
553 /*
554  * Backlight
555  */
556 
557 static struct platform_pwm_backlight_data backlight_data = {
558 	.max_brightness = 200,
559 	.dft_brightness = 100,
560 	.enable_gpio    = -1,
561 };
562 
563 static struct platform_device backlight = {
564 	.name = "pwm-backlight",
565 	.id   = -1,
566 	.dev  = {
567 		.parent        = &pxa27x_device_pwm1.dev,
568 		.platform_data = &backlight_data,
569 	},
570 };
571 
572 static struct pwm_lookup hx4700_pwm_lookup[] = {
573 	PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight", NULL,
574 		   30923, PWM_POLARITY_NORMAL),
575 };
576 
577 /*
578  * USB "Transceiver"
579  */
580 
581 static struct gpio_vbus_mach_info gpio_vbus_info = {
582 	.gpio_pullup        = GPIO76_HX4700_USBC_PUEN,
583 	.gpio_vbus          = GPIOD14_nUSBC_DETECT,
584 	.gpio_vbus_inverted = 1,
585 };
586 
587 static struct platform_device gpio_vbus = {
588 	.name          = "gpio-vbus",
589 	.id            = -1,
590 	.dev = {
591 		.platform_data = &gpio_vbus_info,
592 	},
593 };
594 
595 static struct pxa2xx_udc_mach_info hx4700_udc_info;
596 
597 /*
598  * Touchscreen - TSC2046 connected to SSP2
599  */
600 
601 static const struct ads7846_platform_data tsc2046_info = {
602 	.model            = 7846,
603 	.vref_delay_usecs = 100,
604 	.pressure_max     = 1024,
605 	.debounce_max     = 10,
606 	.debounce_tol     = 3,
607 	.debounce_rep     = 1,
608 	.gpio_pendown     = GPIO58_HX4700_TSC2046_nPENIRQ,
609 };
610 
611 static struct pxa2xx_spi_chip tsc2046_chip = {
612 	.tx_threshold = 1,
613 	.rx_threshold = 2,
614 	.timeout      = 64,
615 	.gpio_cs      = GPIO88_HX4700_TSC2046_CS,
616 };
617 
618 static struct spi_board_info tsc2046_board_info[] __initdata = {
619 	{
620 		.modalias        = "ads7846",
621 		.bus_num         = 2,
622 		.max_speed_hz    = 2600000, /* 100 kHz sample rate */
623 		.irq             = PXA_GPIO_TO_IRQ(GPIO58_HX4700_TSC2046_nPENIRQ),
624 		.platform_data   = &tsc2046_info,
625 		.controller_data = &tsc2046_chip,
626 	},
627 };
628 
629 static struct pxa2xx_spi_controller pxa_ssp2_master_info = {
630 	.num_chipselect = 1,
631 	.enable_dma     = 1,
632 };
633 
634 /*
635  * External power
636  */
637 
power_supply_init(struct device * dev)638 static int power_supply_init(struct device *dev)
639 {
640 	return gpio_request(GPIOD9_nAC_IN, "AC charger detect");
641 }
642 
hx4700_is_ac_online(void)643 static int hx4700_is_ac_online(void)
644 {
645 	return !gpio_get_value(GPIOD9_nAC_IN);
646 }
647 
power_supply_exit(struct device * dev)648 static void power_supply_exit(struct device *dev)
649 {
650 	gpio_free(GPIOD9_nAC_IN);
651 }
652 
653 static char *hx4700_supplicants[] = {
654 	"ds2760-battery.0", "backup-battery"
655 };
656 
657 static struct pda_power_pdata power_supply_info = {
658 	.init            = power_supply_init,
659 	.is_ac_online    = hx4700_is_ac_online,
660 	.exit            = power_supply_exit,
661 	.supplied_to     = hx4700_supplicants,
662 	.num_supplicants = ARRAY_SIZE(hx4700_supplicants),
663 };
664 
665 static struct resource power_supply_resources[] = {
666 	[0] = DEFINE_RES_NAMED(PXA_GPIO_TO_IRQ(GPIOD9_nAC_IN), 1, "ac",
667 		IORESOURCE_IRQ |
668 		IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE),
669 	[1] = DEFINE_RES_NAMED(PXA_GPIO_TO_IRQ(GPIOD14_nUSBC_DETECT), 1, "usb",
670 		IORESOURCE_IRQ |
671 		IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE),
672 };
673 
674 static struct platform_device power_supply = {
675 	.name = "pda-power",
676 	.id   = -1,
677 	.dev  = {
678 		.platform_data = &power_supply_info,
679 	},
680 	.resource      = power_supply_resources,
681 	.num_resources = ARRAY_SIZE(power_supply_resources),
682 };
683 
684 /*
685  * Battery charger
686  */
687 
688 static struct regulator_consumer_supply bq24022_consumers[] = {
689 	REGULATOR_SUPPLY("vbus_draw", NULL),
690 	REGULATOR_SUPPLY("ac_draw", NULL),
691 };
692 
693 static struct regulator_init_data bq24022_init_data = {
694 	.constraints = {
695 		.max_uA         = 500000,
696 		.valid_ops_mask = REGULATOR_CHANGE_CURRENT|REGULATOR_CHANGE_STATUS,
697 	},
698 	.num_consumer_supplies  = ARRAY_SIZE(bq24022_consumers),
699 	.consumer_supplies      = bq24022_consumers,
700 };
701 
702 static enum gpiod_flags bq24022_gpiod_gflags[] = { GPIOD_OUT_LOW };
703 
704 static struct gpio_regulator_state bq24022_states[] = {
705 	{ .value = 100000, .gpios = (0 << 0) },
706 	{ .value = 500000, .gpios = (1 << 0) },
707 };
708 
709 static struct gpio_regulator_config bq24022_info = {
710 	.supply_name = "bq24022",
711 
712 	.enabled_at_boot = 0,
713 
714 	.gflags = bq24022_gpiod_gflags,
715 	.ngpios = ARRAY_SIZE(bq24022_gpiod_gflags),
716 
717 	.states = bq24022_states,
718 	.nr_states = ARRAY_SIZE(bq24022_states),
719 
720 	.type = REGULATOR_CURRENT,
721 	.init_data = &bq24022_init_data,
722 };
723 
724 static struct platform_device bq24022 = {
725 	.name = "gpio-regulator",
726 	.id   = -1,
727 	.dev  = {
728 		.platform_data = &bq24022_info,
729 	},
730 };
731 
732 static struct gpiod_lookup_table bq24022_gpiod_table = {
733 	.dev_id = "gpio-regulator",
734 	.table = {
735 		GPIO_LOOKUP("gpio-pxa", GPIO96_HX4700_BQ24022_ISET2,
736 			    NULL, GPIO_ACTIVE_HIGH),
737 		GPIO_LOOKUP("gpio-pxa", GPIO72_HX4700_BQ24022_nCHARGE_EN,
738 			    "enable", GPIO_ACTIVE_LOW),
739 		{ },
740 	},
741 };
742 
743 /*
744  * StrataFlash
745  */
746 
hx4700_set_vpp(struct platform_device * pdev,int vpp)747 static void hx4700_set_vpp(struct platform_device *pdev, int vpp)
748 {
749 	gpio_set_value(GPIO91_HX4700_FLASH_VPEN, vpp);
750 }
751 
752 static struct resource strataflash_resource[] = {
753 	[0] = DEFINE_RES_MEM(PXA_CS0_PHYS, SZ_64M),
754 	[1] = DEFINE_RES_MEM(PXA_CS0_PHYS + SZ_64M, SZ_64M),
755 };
756 
757 static struct physmap_flash_data strataflash_data = {
758 	.width = 4,
759 	.set_vpp = hx4700_set_vpp,
760 };
761 
762 static struct platform_device strataflash = {
763 	.name          = "physmap-flash",
764 	.id            = -1,
765 	.resource      = strataflash_resource,
766 	.num_resources = ARRAY_SIZE(strataflash_resource),
767 	.dev = {
768 		.platform_data = &strataflash_data,
769 	},
770 };
771 
772 /*
773  * Maxim MAX1587A on PI2C
774  */
775 
776 static struct regulator_consumer_supply max1587a_consumer =
777 	REGULATOR_SUPPLY("vcc_core", NULL);
778 
779 static struct regulator_init_data max1587a_v3_info = {
780 	.constraints = {
781 		.name = "vcc_core range",
782 		.min_uV =  900000,
783 		.max_uV = 1705000,
784 		.always_on = 1,
785 		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
786 	},
787 	.num_consumer_supplies = 1,
788 	.consumer_supplies     = &max1587a_consumer,
789 };
790 
791 static struct max1586_subdev_data max1587a_subdev = {
792 	.name = "vcc_core",
793 	.id   = MAX1586_V3,
794 	.platform_data = &max1587a_v3_info,
795 };
796 
797 static struct max1586_platform_data max1587a_info = {
798 	.num_subdevs = 1,
799 	.subdevs     = &max1587a_subdev,
800 	.v3_gain     = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */
801 };
802 
803 static struct i2c_board_info __initdata pi2c_board_info[] = {
804 	{
805 		I2C_BOARD_INFO("max1586", 0x14),
806 		.platform_data = &max1587a_info,
807 	},
808 };
809 
810 /*
811  * Asahi Kasei AK4641 on I2C
812  */
813 
814 static struct ak4641_platform_data ak4641_info = {
815 	.gpio_power = GPIO27_HX4700_CODEC_ON,
816 	.gpio_npdn  = GPIO109_HX4700_CODEC_nPDN,
817 };
818 
819 static struct i2c_board_info i2c_board_info[] __initdata = {
820 	{
821 		I2C_BOARD_INFO("ak4641", 0x12),
822 		.platform_data = &ak4641_info,
823 	},
824 };
825 
826 static struct platform_device audio = {
827 	.name	= "hx4700-audio",
828 	.id	= -1,
829 };
830 
831 
832 /*
833  * Platform devices
834  */
835 
836 static struct platform_device *devices[] __initdata = {
837 	&asic3,
838 	&gpio_keys,
839 	&navpoint,
840 	&backlight,
841 	&w3220,
842 	&hx4700_lcd,
843 	&egpio,
844 	&bq24022,
845 	&gpio_vbus,
846 	&power_supply,
847 	&strataflash,
848 	&audio,
849 };
850 
851 static struct gpio global_gpios[] = {
852 	{ GPIO12_HX4700_ASIC3_IRQ, GPIOF_IN, "ASIC3_IRQ" },
853 	{ GPIO13_HX4700_W3220_IRQ, GPIOF_IN, "W3220_IRQ" },
854 	{ GPIO14_HX4700_nWLAN_IRQ, GPIOF_IN, "WLAN_IRQ" },
855 	{ GPIO59_HX4700_LCD_PC1,          GPIOF_OUT_INIT_HIGH, "LCD_PC1" },
856 	{ GPIO62_HX4700_LCD_nRESET,       GPIOF_OUT_INIT_HIGH, "LCD_RESET" },
857 	{ GPIO70_HX4700_LCD_SLIN1,        GPIOF_OUT_INIT_HIGH, "LCD_SLIN1" },
858 	{ GPIO84_HX4700_LCD_SQN,          GPIOF_OUT_INIT_HIGH, "LCD_SQN" },
859 	{ GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" },
860 	{ GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" },
861 	{ GPIO32_HX4700_RS232_ON,         GPIOF_OUT_INIT_HIGH, "RS232_ON" },
862 	{ GPIO61_HX4700_W3220_nRESET,     GPIOF_OUT_INIT_HIGH, "W3220_nRESET" },
863 	{ GPIO71_HX4700_ASIC3_nRESET,     GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" },
864 	{ GPIO81_HX4700_CPU_GP_nRESET,    GPIOF_OUT_INIT_HIGH, "CPU_GP_nRESET" },
865 	{ GPIO82_HX4700_EUART_RESET,      GPIOF_OUT_INIT_HIGH, "EUART_RESET" },
866 	{ GPIO116_HX4700_CPU_HW_nRESET,   GPIOF_OUT_INIT_HIGH, "CPU_HW_nRESET" },
867 };
868 
hx4700_init(void)869 static void __init hx4700_init(void)
870 {
871 	int ret;
872 
873 	PCFR = PCFR_GPR_EN | PCFR_OPDE;
874 
875 	pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
876 	gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1);
877 	ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));
878 	if (ret)
879 		pr_err ("hx4700: Failed to request GPIOs.\n");
880 
881 	pxa_set_ffuart_info(NULL);
882 	pxa_set_btuart_info(NULL);
883 	pxa_set_stuart_info(NULL);
884 
885 	gpiod_add_lookup_table(&bq24022_gpiod_table);
886 	platform_add_devices(devices, ARRAY_SIZE(devices));
887 	pwm_add_table(hx4700_pwm_lookup, ARRAY_SIZE(hx4700_pwm_lookup));
888 
889 	pxa_set_ficp_info(&ficp_info);
890 	pxa27x_set_i2c_power_info(NULL);
891 	pxa_set_i2c_info(NULL);
892 	i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info));
893 	i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info));
894 	pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
895 	spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info));
896 
897 	gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 0);
898 	mdelay(10);
899 	gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 1);
900 	mdelay(10);
901 
902 	pxa_set_udc_info(&hx4700_udc_info);
903 	regulator_has_full_constraints();
904 }
905 
906 MACHINE_START(H4700, "HP iPAQ HX4700")
907 	.atag_offset  = 0x100,
908 	.map_io       = pxa27x_map_io,
909 	.nr_irqs      = HX4700_NR_IRQS,
910 	.init_irq     = pxa27x_init_irq,
911 	.handle_irq     = pxa27x_handle_irq,
912 	.init_machine = hx4700_init,
913 	.init_time	= pxa_timer_init,
914 	.restart	= pxa_restart,
915 MACHINE_END
916