summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-pxa/magician.c
blob: 5d0591f93f4d06cbb864e864645430758ceb0783 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Support for HTC Magician PDA phones:
 * i-mate JAM, O2 Xda mini, Orange SPV M500, Qtek s100, Qtek s110
 * and T-Mobile MDA Compact.
 *
 * Copyright (c) 2006-2007 Philipp Zabel
 *
 * Based on hx4700.c, spitz.c and others.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/mfd/htc-pasic3.h>
#include <linux/mtd/physmap.h>
#include <linux/pda_power.h>
#include <linux/platform_data/gpio-htc-egpio.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/gpio-regulator.h>
#include <linux/regulator/machine.h>
#include <linux/platform_data/i2c-pxa.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/system_info.h>

#include "pxa27x.h"
#include <mach/magician.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/irda-pxaficp.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>

#include <linux/regulator/max1586.h>

#include <linux/platform_data/pxa2xx_udc.h>

#include "udc.h"
#include "pxa27x-udc.h"
#include "devices.h"
#include "generic.h"

#include <linux/spi/spi.h>
#include <linux/spi/pxa2xx_spi.h>
#include <linux/spi/ads7846.h>

static unsigned long magician_pin_config[] __initdata = {

	/* SDRAM and Static Memory I/O Signals */
	GPIO20_nSDCS_2,
	GPIO21_nSDCS_3,
	GPIO15_nCS_1,
	GPIO78_nCS_2,	/* PASIC3 */
	GPIO79_nCS_3,	/* EGPIO CPLD */
	GPIO80_nCS_4,
	GPIO33_nCS_5,

	/* I2C UDA1380 + OV9640 */
	GPIO117_I2C_SCL,
	GPIO118_I2C_SDA,

	/* PWM 0 - LCD backlight */
	GPIO16_PWM0_OUT,

	/* I2S UDA1380 capture */
	GPIO28_I2S_BITCLK_OUT,
	GPIO29_I2S_SDATA_IN,
	GPIO31_I2S_SYNC,
	GPIO113_I2S_SYSCLK,

	/* SSP 1 UDA1380 playback */
	GPIO23_SSP1_SCLK,
	GPIO24_SSP1_SFRM,
	GPIO25_SSP1_TXD,

	/* SSP 2 TSC2046 touchscreen */
	GPIO19_SSP2_SCLK,
	MFP_CFG_OUT(GPIO14, AF0, DRIVE_HIGH),	/* frame as GPIO */
	GPIO89_SSP2_TXD,
	GPIO88_SSP2_RXD,

	/* MMC/SD/SDHC slot */
	GPIO32_MMC_CLK,
	GPIO92_MMC_DAT_0,
	GPIO109_MMC_DAT_1,
	GPIO110_MMC_DAT_2,
	GPIO111_MMC_DAT_3,
	GPIO112_MMC_CMD,

	/* LCD */
	GPIOxx_LCD_TFT_16BPP,

	/* QCI camera interface */
	GPIO12_CIF_DD_7,
	GPIO17_CIF_DD_6,
	GPIO50_CIF_DD_3,
	GPIO51_CIF_DD_2,
	GPIO52_CIF_DD_4,
	GPIO53_CIF_MCLK,
	GPIO54_CIF_PCLK,
	GPIO55_CIF_DD_1,
	GPIO81_CIF_DD_0,
	GPIO82_CIF_DD_5,
	GPIO84_CIF_FV,
	GPIO85_CIF_LV,

	/* Magician specific input GPIOs */
	GPIO9_GPIO,	/* unknown */
	GPIO10_GPIO,	/* GSM_IRQ */
	GPIO13_GPIO,	/* CPLD_IRQ */
	GPIO107_GPIO,	/* DS1WM_IRQ */
	GPIO108_GPIO,	/* GSM_READY */
	GPIO115_GPIO,	/* nPEN_IRQ */
};

/*
 * IrDA
 */

static struct pxaficp_platform_data magician_ficp_info = {
	.gpio_pwdown		= GPIO83_MAGICIAN_nIR_EN,
	.transceiver_cap	= IR_SIRMODE | IR_OFF,
	.gpio_pwdown_inverted	= 0,
};

/*
 * GPIO Keys
 */

#define INIT_KEY(_code, _gpio, _desc)	\
	{				\
		.code	= KEY_##_code,	\
		.gpio	= _gpio,	\
		.desc	= _desc,	\
		.type	= EV_KEY,	\
		.wakeup	= 1,		\
	}

static struct gpio_keys_button magician_button_table[] = {
	INIT_KEY(POWER,      GPIO0_MAGICIAN_KEY_POWER,      "Power button"),
	INIT_KEY(ESC,        GPIO37_MAGICIAN_KEY_HANGUP,    "Hangup button"),
	INIT_KEY(F10,        GPIO38_MAGICIAN_KEY_CONTACTS,  "Contacts button"),
	INIT_KEY(CALENDAR,   GPIO90_MAGICIAN_KEY_CALENDAR,  "Calendar button"),
	INIT_KEY(CAMERA,     GPIO91_MAGICIAN_KEY_CAMERA,    "Camera button"),
	INIT_KEY(UP,         GPIO93_MAGICIAN_KEY_UP,        "Up button"),
	INIT_KEY(DOWN,       GPIO94_MAGICIAN_KEY_DOWN,      "Down button"),
	INIT_KEY(LEFT,       GPIO95_MAGICIAN_KEY_LEFT,      "Left button"),
	INIT_KEY(RIGHT,      GPIO96_MAGICIAN_KEY_RIGHT,     "Right button"),
	INIT_KEY(KPENTER,    GPIO97_MAGICIAN_KEY_ENTER,     "Action button"),
	INIT_KEY(RECORD,     GPIO98_MAGICIAN_KEY_RECORD,    "Record button"),
	INIT_KEY(VOLUMEUP,   GPIO100_MAGICIAN_KEY_VOL_UP,   "Volume up"),
	INIT_KEY(VOLUMEDOWN, GPIO101_MAGICIAN_KEY_VOL_DOWN, "Volume down"),
	INIT_KEY(PHONE,      GPIO102_MAGICIAN_KEY_PHONE,    "Phone button"),
	INIT_KEY(PLAY,       GPIO99_MAGICIAN_HEADPHONE_IN,  "Headset button"),
};

static struct gpio_keys_platform_data gpio_keys_data = {
	.buttons	= magician_button_table,
	.nbuttons	= ARRAY_SIZE(magician_button_table),
};

static struct platform_device gpio_keys = {
	.name	= "gpio-keys",
	.dev	= {
		.platform_data = &gpio_keys_data,
	},
	.id	= -1,
};

/*
 * EGPIO (Xilinx CPLD)
 *
 * 32-bit aligned 8-bit registers
 * 16 possible registers (reg windows size), only 7 used:
 * 3x output, 1x irq, 3x input
 */

static struct resource egpio_resources[] = {
	[0] = {
		.start	= PXA_CS3_PHYS,
		.end	= PXA_CS3_PHYS + 0x20 - 1,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
		.end	= PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
		.flags	= IORESOURCE_IRQ,
	},
};

static struct htc_egpio_chip egpio_chips[] = {
	[0] = {
		.reg_start	= 0,
		.gpio_base	= MAGICIAN_EGPIO(0, 0),
		.num_gpios	= 24,
		.direction	= HTC_EGPIO_OUTPUT,
		/*
		 * Depends on modules configuration
		 */
		.initial_values	= 0x40, /* EGPIO_MAGICIAN_GSM_RESET */
	},
	[1] = {
		.reg_start	= 4,
		.gpio_base	= MAGICIAN_EGPIO(4, 0),
		.num_gpios	= 24,
		.direction	= HTC_EGPIO_INPUT,
	},
};

static struct htc_egpio_platform_data egpio_info = {
	.reg_width	= 8,
	.bus_width	= 32,
	.irq_base	= IRQ_BOARD_START,
	.num_irqs	= 4,
	.ack_register	= 3,
	.chip		= egpio_chips,
	.num_chips	= ARRAY_SIZE(egpio_chips),
};

static struct platform_device egpio = {
	.name		= "htc-egpio",
	.id		= -1,
	.resource	= egpio_resources,
	.num_resources	= ARRAY_SIZE(egpio_resources),
	.dev = {
		.platform_data = &egpio_info,
	},
};

/*
 * PXAFB LCD - Toppoly TD028STEB1 or Samsung LTP280QV
 */

static struct pxafb_mode_info toppoly_modes[] = {
	{
		.pixclock	= 96153,
		.bpp		= 16,
		.xres		= 240,
		.yres		= 320,
		.hsync_len	= 11,
		.vsync_len	= 3,
		.left_margin	= 19,
		.upper_margin	= 2,
		.right_margin	= 10,
		.lower_margin	= 2,
		.sync		= 0,
	},
};

static struct pxafb_mode_info samsung_modes[] = {
	{
		.pixclock	= 226469,
		.bpp		= 16,
		.xres		= 240,
		.yres		= 320,
		.hsync_len	= 8,
		.vsync_len	= 4,
		.left_margin	= 9,
		.upper_margin	= 4,
		.right_margin	= 9,
		.lower_margin	= 4,
		.sync	= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	},
};

static void toppoly_lcd_power(int on, struct fb_var_screeninfo *si)
{
	pr_debug("Toppoly LCD power: %s\n", on ? "on" : "off");

	if (on) {
		gpio_set_value(EGPIO_MAGICIAN_TOPPOLY_POWER, 1);
		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
		udelay(2000);
		gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
		udelay(2000);
		/* FIXME: enable LCDC here */
		udelay(2000);
		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
		udelay(2000);
		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
	} else {
		msleep(15);
		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
		udelay(500);
		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
		udelay(1000);
		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
		gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
	}
}

static void samsung_lcd_power(int on, struct fb_var_screeninfo *si)
{
	pr_debug("Samsung LCD power: %s\n", on ? "on" : "off");

	if (on) {
		if (system_rev < 3)
			gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 1);
		else
			gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
		mdelay(6);
		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
		mdelay(6);	/* Avdd -> Voff >5ms */
		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
		mdelay(16);	/* Voff -> Von >(5+10)ms */
		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
	} else {
		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
		mdelay(16);
		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
		mdelay(6);
		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
		mdelay(6);
		if (system_rev < 3)
			gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 0);
		else
			gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
	}
}

static struct pxafb_mach_info toppoly_info = {
	.modes			= toppoly_modes,
	.num_modes		= 1,
	.fixed_modes		= 1,
	.lcd_conn		= LCD_COLOR_TFT_16BPP,
	.pxafb_lcd_power	= toppoly_lcd_power,
};

static struct pxafb_mach_info samsung_info = {
	.modes			= samsung_modes,
	.num_modes		= 1,
	.fixed_modes		= 1,
	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
		LCD_ALTERNATE_MAPPING,
	.pxafb_lcd_power	= samsung_lcd_power,
};

/*
 * Backlight
 */

static struct pwm_lookup magician_pwm_lookup[] = {
	PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 30923,
		   PWM_POLARITY_NORMAL),
};

 /*
 * fixed regulator for pwm_backlight
 */

static struct regulator_consumer_supply pwm_backlight_supply[] = {
	REGULATOR_SUPPLY("power", "pwm_backlight"),
};


static struct gpio magician_bl_gpios[] = {
	{ EGPIO_MAGICIAN_BL_POWER,	GPIOF_DIR_OUT, "Backlight power" },
	{ EGPIO_MAGICIAN_BL_POWER2,	GPIOF_DIR_OUT, "Backlight power 2" },
};

static int magician_backlight_init(struct device *dev)
{
	return gpio_request_array(ARRAY_AND_SIZE(magician_bl_gpios));
}

static int magician_backlight_notify(struct device *dev, int brightness)
{
	pr_debug("Brightness = %i\n", brightness);
	gpio_set_value(EGPIO_MAGICIAN_BL_POWER, brightness);
	if (brightness >= 200) {
		gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 1);
		return brightness - 72;
	} else {
		gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 0);
		return brightness;
	}
}

static void magician_backlight_exit(struct device *dev)
{
	gpio_free_array(ARRAY_AND_SIZE(magician_bl_gpios));
}

/*
 * LCD PWM backlight (main)
 *
 * MP1521 frequency should be:
 *	100-400 Hz = 2 .5*10^6 - 10 *10^6 ns
 */

static struct platform_pwm_backlight_data backlight_data = {
	.max_brightness	= 272,
	.dft_brightness	= 100,
	.enable_gpio	= -1,
	.init		= magician_backlight_init,
	.notify		= magician_backlight_notify,
	.exit		= magician_backlight_exit,
};

static struct platform_device backlight = {
	.name	= "pwm-backlight",
	.id	= -1,
	.dev	= {
		.parent		= &pxa27x_device_pwm0.dev,
		.platform_data	= &backlight_data,
	},
};

/*
 * GPIO LEDs, Phone keys backlight, vibra
 */

static struct gpio_led gpio_leds[] = {
	{
		.name = "magician::vibra",
		.default_trigger = "none",
		.gpio = GPIO22_MAGICIAN_VIBRA_EN,
	},
	{
		.name = "magician::phone_bl",
		.default_trigger = "backlight",
		.gpio = GPIO103_MAGICIAN_LED_KP,
	},
};

static struct gpio_led_platform_data gpio_led_info = {
	.leds = gpio_leds,
	.num_leds = ARRAY_SIZE(gpio_leds),
};

static struct platform_device leds_gpio = {
	.name	= "leds-gpio",
	.id	= -1,
	.dev	= {
		.platform_data = &gpio_led_info,
	},
};

/*
 * PASIC3 with DS1WM
 */

static struct resource pasic3_resources[] = {
	[0] = {
		.start	= PXA_CS2_PHYS,
		.end	= PXA_CS2_PHYS + 0x1b,
		.flags	= IORESOURCE_MEM,
	},
	/* No IRQ handler in the PASIC3, DS1WM needs an external IRQ */
	[1] = {
		.start	= PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
		.end	= PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
	}
};

static struct pasic3_platform_data pasic3_platform_data = {
	.clock_rate = 4000000,
};

static struct platform_device pasic3 = {
	.name		= "pasic3",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(pasic3_resources),
	.resource	= pasic3_resources,
	.dev = {
		.platform_data = &pasic3_platform_data,
	},
};

/*
 * PXA UDC
 */

static void magician_udc_command(int cmd)
{
	if (cmd == PXA2XX_UDC_CMD_CONNECT)
		UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE;
	else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
		UP2OCR &= ~(UP2OCR_DPPUE | UP2OCR_DPPUBE);
}

static struct pxa2xx_udc_mach_info magician_udc_info __initdata = {
	.udc_command	= magician_udc_command,
	.gpio_pullup	= GPIO27_MAGICIAN_USBC_PUEN,
};

/*
 * USB device VBus detection
 */

static struct resource gpio_vbus_resource = {
	.flags	= IORESOURCE_IRQ,
	.start	= IRQ_MAGICIAN_VBUS,
	.end	= IRQ_MAGICIAN_VBUS,
};

static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
	.dev_id = "gpio-vbus",
	.table = {
		/*
		 * EGPIO on register 4 index 1, the second EGPIO chip
		 * starts at register 4 so this will be at index 1 on that
		 * chip.
		 */
		GPIO_LOOKUP("htc-egpio-1", 1,
			    "vbus", GPIO_ACTIVE_HIGH),
		GPIO_LOOKUP("gpio-pxa", GPIO27_MAGICIAN_USBC_PUEN,
			    "pullup", GPIO_ACTIVE_HIGH),
		{ },
	},
};

static struct platform_device gpio_vbus = {
	.name		= "gpio-vbus",
	.id		= -1,
	.num_resources	= 1,
	.resource	= &gpio_vbus_resource,
};

/*
 * External power
 */

static int magician_supply_init(struct device *dev)
{
	int ret = -1;

	ret = gpio_request(EGPIO_MAGICIAN_CABLE_TYPE, "Cable is AC charger");
	if (ret) {
		pr_err("Cannot request AC/USB charger GPIO (%i)\n", ret);
		goto err_ac;
	}

	ret = gpio_request(EGPIO_MAGICIAN_CABLE_INSERTED, "Cable inserted");
	if (ret) {
		pr_err("Cannot request cable detection GPIO (%i)\n", ret);
		goto err_usb;
	}

	return 0;

err_usb:
	gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
err_ac:
	return ret;
}

static void magician_set_charge(int flags)
{
	if (flags & PDA_POWER_CHARGE_AC) {
		pr_debug("Charging from AC\n");
		gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
	} else if (flags & PDA_POWER_CHARGE_USB) {
		pr_debug("Charging from USB\n");
		gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
	} else {
		pr_debug("Charging disabled\n");
		gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 0);
	}
}

static int magician_is_ac_online(void)
{
	return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
		gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE); /* AC=1 */
}

static int magician_is_usb_online(void)
{
	return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
		(!gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE)); /* USB=0 */
}

static void magician_supply_exit(struct device *dev)
{
	gpio_free(EGPIO_MAGICIAN_CABLE_INSERTED);
	gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
}

static char *magician_supplicants[] = {
	"ds2760-battery.0", "backup-battery"
};

static struct pda_power_pdata power_supply_info = {
	.init			= magician_supply_init,
	.exit			= magician_supply_exit,
	.is_ac_online		= magician_is_ac_online,
	.is_usb_online		= magician_is_usb_online,
	.set_charge		= magician_set_charge,
	.supplied_to		= magician_supplicants,
	.num_supplicants	= ARRAY_SIZE(magician_supplicants),
};

static struct resource power_supply_resources[] = {
	[0] = {
		.name	= "ac",
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
			IORESOURCE_IRQ_LOWEDGE,
		.start	= IRQ_MAGICIAN_VBUS,
		.end	= IRQ_MAGICIAN_VBUS,
	},
	[1] = {
		.name	= "usb",
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
			IORESOURCE_IRQ_LOWEDGE,
		.start	= IRQ_MAGICIAN_VBUS,
		.end	= IRQ_MAGICIAN_VBUS,
	},
};

static struct platform_device power_supply = {
	.name	= "pda-power",
	.id	= -1,
	.dev = {
		.platform_data = &power_supply_info,
	},
	.resource	= power_supply_resources,
	.num_resources	= ARRAY_SIZE(power_supply_resources),
};

/*
 * Battery charger
 */

static struct regulator_consumer_supply bq24022_consumers[] = {
	REGULATOR_SUPPLY("vbus_draw", NULL),
	REGULATOR_SUPPLY("ac_draw", NULL),
};

static struct regulator_init_data bq24022_init_data = {
	.constraints = {
		.max_uA		= 500000,
		.valid_ops_mask	= REGULATOR_CHANGE_CURRENT |
			REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies	= ARRAY_SIZE(bq24022_consumers),
	.consumer_supplies	= bq24022_consumers,
};


static enum gpiod_flags bq24022_gpiod_gflags[] = { GPIOD_OUT_LOW };

static struct gpio_regulator_state bq24022_states[] = {
	{ .value = 100000, .gpios = (0 << 0) },
	{ .value = 500000, .gpios = (1 << 0) },
};

static struct gpio_regulator_config bq24022_info = {
	.supply_name		= "bq24022",

	.enabled_at_boot	= 1,

	.gflags = bq24022_gpiod_gflags,
	.ngpios = ARRAY_SIZE(bq24022_gpiod_gflags),

	.states			= bq24022_states,
	.nr_states		= ARRAY_SIZE(bq24022_states),

	.type			= REGULATOR_CURRENT,
	.init_data		= &bq24022_init_data,
};

static struct platform_device bq24022 = {
	.name	= "gpio-regulator",
	.id	= -1,
	.dev	= {
		.platform_data = &bq24022_info,
	},
};

static struct gpiod_lookup_table bq24022_gpiod_table = {
	.dev_id = "gpio-regulator",
	.table = {
		GPIO_LOOKUP("gpio-pxa", EGPIO_MAGICIAN_BQ24022_ISET2,
			    NULL, GPIO_ACTIVE_HIGH),
		GPIO_LOOKUP("gpio-pxa", GPIO30_MAGICIAN_BQ24022_nCHARGE_EN,
			    "enable", GPIO_ACTIVE_LOW),
		{ },
	},
};

/*
 * fixed regulator for ads7846
 */

static struct regulator_consumer_supply ads7846_supply =
	REGULATOR_SUPPLY("vcc", "spi2.0");

static struct regulator_init_data vads7846_regulator = {
	.constraints	= {
		.valid_ops_mask	= REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies	= 1,
	.consumer_supplies	= &ads7846_supply,
};

static struct fixed_voltage_config vads7846 = {
	.supply_name	= "vads7846",
	.microvolts	= 3300000, /* probably */
	.startup_delay	= 0,
	.init_data	= &vads7846_regulator,
};

static struct platform_device vads7846_device = {
	.name	= "reg-fixed-voltage",
	.id	= -1,
	.dev	= {
		.platform_data	= &vads7846,
	},
};

/*
 * Vcore regulator MAX1587A
 */

static struct regulator_consumer_supply magician_max1587a_consumers[] = {
	REGULATOR_SUPPLY("vcc_core", NULL),
};

static struct regulator_init_data magician_max1587a_v3_info = {
	.constraints = {
		.name		= "vcc_core range",
		.min_uV		= 700000,
		.max_uV		= 1475000,
		.always_on	= 1,
		.valid_ops_mask	= REGULATOR_CHANGE_VOLTAGE,
	},
	.consumer_supplies	= magician_max1587a_consumers,
	.num_consumer_supplies	= ARRAY_SIZE(magician_max1587a_consumers),
};

static struct max1586_subdev_data magician_max1587a_subdevs[] = {
	{
		.name		= "vcc_core",
		.id		= MAX1586_V3,
		.platform_data	= &magician_max1587a_v3_info,
	}
};

static struct max1586_platform_data magician_max1587a_info = {
	.subdevs     = magician_max1587a_subdevs,
	.num_subdevs = ARRAY_SIZE(magician_max1587a_subdevs),
	/*
	 * NOTICE measured directly on the PCB (board_id == 0x3a), but
	 * if R24 is present, it will boost the voltage
	 * (write 1.475V, get 1.645V and smoke)
	 */
	.v3_gain     = MAX1586_GAIN_NO_R24,
};

static struct i2c_board_info magician_pwr_i2c_board_info[] __initdata = {
	{
		I2C_BOARD_INFO("max1586", 0x14),
		.platform_data	= &magician_max1587a_info,
	},
};

/*
 * MMC/SD
 */

static int magician_mci_init(struct device *dev,
	irq_handler_t detect_irq, void *data)
{
	return request_irq(IRQ_MAGICIAN_SD, detect_irq, 0,
		"mmc card detect", data);
}

static void magician_mci_exit(struct device *dev, void *data)
{
	free_irq(IRQ_MAGICIAN_SD, data);
}

static struct pxamci_platform_data magician_mci_info = {
	.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
	.init			= magician_mci_init,
	.exit			= magician_mci_exit,
	.gpio_card_ro_invert	= 1,
};

/*
 * Write protect on EGPIO register 5 index 4, this is on the second HTC
 * EGPIO chip which starts at register 4, so we need offset 8+4=12 on that
 * particular chip.
 */
#define EGPIO_MAGICIAN_nSD_READONLY_OFFSET 12
/*
 * Power on EGPIO register 2 index 0, so this is on the first HTC EGPIO chip
 * starting at register 0 so we need offset 2*8+0 = 16 on that chip.
 */
#define EGPIO_MAGICIAN_nSD_POWER_OFFSET 16

static struct gpiod_lookup_table magician_mci_gpio_table = {
	.dev_id = "pxa2xx-mci.0",
	.table = {
		GPIO_LOOKUP("htc-egpio-1", EGPIO_MAGICIAN_nSD_READONLY_OFFSET,
			    "wp", GPIO_ACTIVE_HIGH),
		GPIO_LOOKUP("htc-egpio-0", EGPIO_MAGICIAN_nSD_POWER_OFFSET,
			    "power", GPIO_ACTIVE_HIGH),
		{ },
	},
};

/*
 * USB OHCI
 */

static struct pxaohci_platform_data magician_ohci_info = {
	.port_mode	= PMM_PERPORT_MODE,
	/* port1: CSR Bluetooth, port2: OTG with UDC */
	.flags		= ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
	.power_budget	= 0,
	.power_on_delay = 100,
};

/*
 * StrataFlash
 */

static int magician_flash_init(struct platform_device *pdev)
{
	int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable");

	if (ret) {
		pr_err("Cannot request flash enable GPIO (%i)\n", ret);
		return ret;
	}

	ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1);
	if (ret) {
		pr_err("Cannot set direction for flash enable (%i)\n", ret);
		gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
	}

	return ret;
}

static void magician_set_vpp(struct platform_device *pdev, int vpp)
{
	gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
}

static void magician_flash_exit(struct platform_device *pdev)
{
	gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
}

static struct resource strataflash_resource = {
	.start	= PXA_CS0_PHYS,
	.end	= PXA_CS0_PHYS + SZ_64M - 1,
	.flags	= IORESOURCE_MEM,
};

static struct mtd_partition magician_flash_parts[] = {
	{
		.name		= "Bootloader",
		.offset		= 0x0,
		.size		= 0x40000,
		.mask_flags	= MTD_WRITEABLE, /* EXPERIMENTAL */
	},
	{
		.name		= "Linux Kernel",
		.offset		= 0x40000,
		.size		= MTDPART_SIZ_FULL,
	},
};

/*
 * physmap-flash driver
 */

static struct physmap_flash_data strataflash_data = {
	.width		= 4,
	.init		= magician_flash_init,
	.set_vpp	= magician_set_vpp,
	.exit		= magician_flash_exit,
	.parts		= magician_flash_parts,
	.nr_parts	= ARRAY_SIZE(magician_flash_parts),
};

static struct platform_device strataflash = {
	.name		= "physmap-flash",
	.id		= -1,
	.resource	= &strataflash_resource,
	.num_resources	= 1,
	.dev = {
		.platform_data = &strataflash_data,
	},
};

/*
 * PXA I2C main controller
 */

static struct i2c_pxa_platform_data i2c_info = {
	/* OV9640 I2C device doesn't support fast mode */
	.fast_mode	= 0,
};

/*
 * PXA I2C power controller
 */

static struct i2c_pxa_platform_data magician_i2c_power_info = {
	.fast_mode	= 1,
};

/*
 * Touchscreen
 */

static struct ads7846_platform_data ads7846_pdata = {
	.model		= 7846,
	.x_plate_ohms	= 317,
	.y_plate_ohms	= 500,
	.pressure_max	= 1023,	/* with x plate ohms it will overflow 255 */
	.debounce_max	= 3,	/* first readout is always bad */
	.debounce_tol	= 30,
	.debounce_rep	= 0,
	.gpio_pendown	= GPIO115_MAGICIAN_nPEN_IRQ,
	.keep_vref_on	= 1,
	.wakeup		= true,
	.vref_delay_usecs		= 100,
	.penirq_recheck_delay_usecs	= 100,
};

struct pxa2xx_spi_chip tsc2046_chip_info = {
	.tx_threshold	= 1,
	.rx_threshold	= 2,
	.timeout	= 64,
	/* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
	.gpio_cs	= GPIO14_MAGICIAN_TSC2046_CS,
};

static struct pxa2xx_spi_controller magician_spi_info = {
	.num_chipselect	= 1,
	.enable_dma	= 1,
};

static struct spi_board_info ads7846_spi_board_info[] __initdata = {
	{
		.modalias		= "ads7846",
		.bus_num		= 2,
		.max_speed_hz		= 2500000,
		.platform_data		= &ads7846_pdata,
		.controller_data	= &tsc2046_chip_info,
		.irq = PXA_GPIO_TO_IRQ(GPIO115_MAGICIAN_nPEN_IRQ),
	},
};

/*
 * Platform devices
 */

static struct platform_device *devices[] __initdata = {
	&gpio_keys,
	&egpio,
	&backlight,
	&pasic3,
	&bq24022,
	&gpio_vbus,
	&power_supply,
	&strataflash,
	&leds_gpio,
	&vads7846_device,
};

static struct gpio magician_global_gpios[] = {
	{ GPIO13_MAGICIAN_CPLD_IRQ, GPIOF_IN, "CPLD_IRQ" },
	{ GPIO107_MAGICIAN_DS1WM_IRQ, GPIOF_IN, "DS1WM_IRQ" },

	/* NOTICE valid LCD init sequence */
	{ GPIO106_MAGICIAN_LCD_DCDC_NRESET, GPIOF_OUT_INIT_LOW, "LCD DCDC nreset" },
	{ GPIO104_MAGICIAN_LCD_VOFF_EN, GPIOF_OUT_INIT_LOW, "LCD VOFF enable" },
	{ GPIO105_MAGICIAN_LCD_VON_EN, GPIOF_OUT_INIT_LOW, "LCD VON enable" },
};

static void __init magician_init(void)
{
	void __iomem *cpld;
	int lcd_select;
	int err;

	pxa2xx_mfp_config(ARRAY_AND_SIZE(magician_pin_config));
	err = gpio_request_array(ARRAY_AND_SIZE(magician_global_gpios));
	if (err)
		pr_err("magician: Failed to request global GPIOs: %d\n", err);

	pxa_set_ffuart_info(NULL);
	pxa_set_btuart_info(NULL);

	pwm_add_table(magician_pwm_lookup, ARRAY_SIZE(magician_pwm_lookup));

	pxa_set_ficp_info(&magician_ficp_info);
	pxa27x_set_i2c_power_info(&magician_i2c_power_info);
	pxa_set_i2c_info(&i2c_info);

	i2c_register_board_info(1,
		ARRAY_AND_SIZE(magician_pwr_i2c_board_info));

	gpiod_add_lookup_table(&magician_mci_gpio_table);
	pxa_set_mci_info(&magician_mci_info);
	pxa_set_ohci_info(&magician_ohci_info);
	pxa_set_udc_info(&magician_udc_info);

	/* Check LCD type we have */
	cpld = ioremap(PXA_CS3_PHYS, 0x1000);
	if (cpld) {
		u8 board_id = __raw_readb(cpld + 0x14);

		iounmap(cpld);
		system_rev = board_id & 0x7;
		lcd_select = board_id & 0x8;
		pr_info("LCD type: %s\n", lcd_select ? "Samsung" : "Toppoly");
		if (lcd_select && (system_rev < 3))
			/* NOTICE valid LCD init sequence */
			gpio_request_one(GPIO75_MAGICIAN_SAMSUNG_POWER,
				GPIOF_OUT_INIT_LOW, "Samsung LCD Power");
		pxa_set_fb_info(NULL,
			lcd_select ? &samsung_info : &toppoly_info);
	} else
		pr_err("LCD detection: CPLD mapping failed\n");

	pxa2xx_set_spi_info(2, &magician_spi_info);
	spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));

	regulator_register_always_on(0, "power", pwm_backlight_supply,
		ARRAY_SIZE(pwm_backlight_supply), 5000000);

	gpiod_add_lookup_table(&bq24022_gpiod_table);
	gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
	platform_add_devices(ARRAY_AND_SIZE(devices));
}

MACHINE_START(MAGICIAN, "HTC Magician")
	.atag_offset	= 0x100,
	.map_io		= pxa27x_map_io,
	.nr_irqs	= MAGICIAN_NR_IRQS,
	.init_irq	= pxa27x_init_irq,
	.handle_irq	= pxa27x_handle_irq,
	.init_machine	= magician_init,
	.init_time	= pxa_timer_init,
	.restart	= pxa_restart,
MACHINE_END