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

Version: ~ [ linux-5.1-rc5 ] ~ [ linux-5.0.7 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.34 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.111 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.168 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.178 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.138 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.65 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * arch/arm/mach-pxa/raumfeld.c
  3  *
  4  * Support for the following Raumfeld devices:
  5  *
  6  *      * Controller
  7  *      * Connector
  8  *      * Speaker S/M
  9  *
 10  * See http://www.raumfeld.com for details.
 11  *
 12  * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
 13  *
 14  * This program is free software; you can redistribute it and/or modify
 15  * it under the terms of the GNU General Public License version 2 as
 16  * published by the Free Software Foundation.
 17  */
 18 
 19 #include <linux/init.h>
 20 #include <linux/kernel.h>
 21 #include <linux/property.h>
 22 #include <linux/platform_device.h>
 23 #include <linux/interrupt.h>
 24 #include <linux/gpio.h>
 25 #include <linux/gpio/machine.h>
 26 #include <linux/smsc911x.h>
 27 #include <linux/input.h>
 28 #include <linux/gpio_keys.h>
 29 #include <linux/leds.h>
 30 #include <linux/w1-gpio.h>
 31 #include <linux/sched.h>
 32 #include <linux/pwm.h>
 33 #include <linux/pwm_backlight.h>
 34 #include <linux/i2c.h>
 35 #include <linux/platform_data/i2c-pxa.h>
 36 #include <linux/spi/spi.h>
 37 #include <linux/spi/spi_gpio.h>
 38 #include <linux/lis3lv02d.h>
 39 #include <linux/pda_power.h>
 40 #include <linux/power_supply.h>
 41 #include <linux/regulator/max8660.h>
 42 #include <linux/regulator/machine.h>
 43 #include <linux/regulator/fixed.h>
 44 #include <linux/regulator/consumer.h>
 45 #include <linux/delay.h>
 46 
 47 #include <asm/system_info.h>
 48 
 49 #include <asm/mach-types.h>
 50 #include <asm/mach/arch.h>
 51 
 52 #include "pxa300.h"
 53 #include <linux/platform_data/usb-ohci-pxa27x.h>
 54 #include <linux/platform_data/video-pxafb.h>
 55 #include <linux/platform_data/mmc-pxamci.h>
 56 #include <linux/platform_data/mtd-nand-pxa3xx.h>
 57 
 58 #include "generic.h"
 59 #include "devices.h"
 60 
 61 /* common GPIO  definitions */
 62 
 63 /* inputs */
 64 #define GPIO_ON_OFF             (14)
 65 #define GPIO_VOLENC_A           (19)
 66 #define GPIO_VOLENC_B           (20)
 67 #define GPIO_CHARGE_DONE        (23)
 68 #define GPIO_CHARGE_IND         (27)
 69 #define GPIO_TOUCH_IRQ          (32)
 70 #define GPIO_ETH_IRQ            (40)
 71 #define GPIO_SPI_MISO           (98)
 72 #define GPIO_ACCEL_IRQ          (104)
 73 #define GPIO_RESCUE_BOOT        (115)
 74 #define GPIO_DOCK_DETECT        (116)
 75 #define GPIO_KEY1               (117)
 76 #define GPIO_KEY2               (118)
 77 #define GPIO_KEY3               (119)
 78 #define GPIO_CHARGE_USB_OK      (112)
 79 #define GPIO_CHARGE_DC_OK       (101)
 80 #define GPIO_CHARGE_USB_SUSP    (102)
 81 
 82 /* outputs */
 83 #define GPIO_SHUTDOWN_SUPPLY    (16)
 84 #define GPIO_SHUTDOWN_BATT      (18)
 85 #define GPIO_CHRG_PEN2          (31)
 86 #define GPIO_TFT_VA_EN          (33)
 87 #define GPIO_SPDIF_CS           (34)
 88 #define GPIO_LED2               (35)
 89 #define GPIO_LED1               (36)
 90 #define GPIO_SPDIF_RESET        (38)
 91 #define GPIO_SPI_CLK            (95)
 92 #define GPIO_MCLK_DAC_CS        (96)
 93 #define GPIO_SPI_MOSI           (97)
 94 #define GPIO_W1_PULLUP_ENABLE   (105)
 95 #define GPIO_DISPLAY_ENABLE     (106)
 96 #define GPIO_MCLK_RESET         (111)
 97 #define GPIO_W2W_RESET          (113)
 98 #define GPIO_W2W_PDN            (114)
 99 #define GPIO_CODEC_RESET        (120)
100 #define GPIO_AUDIO_VA_ENABLE    (124)
101 #define GPIO_ACCEL_CS           (125)
102 #define GPIO_ONE_WIRE           (126)
103 
104 /*
105  * GPIO configurations
106  */
107 static mfp_cfg_t raumfeld_controller_pin_config[] __initdata = {
108         /* UART1 */
109         GPIO77_UART1_RXD,
110         GPIO78_UART1_TXD,
111         GPIO79_UART1_CTS,
112         GPIO81_UART1_DSR,
113         GPIO83_UART1_DTR,
114         GPIO84_UART1_RTS,
115 
116         /* UART3 */
117         GPIO110_UART3_RXD,
118 
119         /* USB Host */
120         GPIO0_2_USBH_PEN,
121         GPIO1_2_USBH_PWR,
122 
123         /* I2C */
124         GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
125         GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
126 
127         /* SPI */
128         GPIO34_GPIO,    /* SPDIF_CS */
129         GPIO96_GPIO,    /* MCLK_CS */
130         GPIO125_GPIO,   /* ACCEL_CS */
131 
132         /* MMC */
133         GPIO3_MMC1_DAT0,
134         GPIO4_MMC1_DAT1,
135         GPIO5_MMC1_DAT2,
136         GPIO6_MMC1_DAT3,
137         GPIO7_MMC1_CLK,
138         GPIO8_MMC1_CMD,
139 
140         /* One-wire */
141         GPIO126_GPIO | MFP_LPM_FLOAT,
142         GPIO105_GPIO | MFP_PULL_LOW | MFP_LPM_PULL_LOW,
143 
144         /* CHRG_USB_OK */
145         GPIO101_GPIO | MFP_PULL_HIGH,
146         /* CHRG_USB_OK */
147         GPIO112_GPIO | MFP_PULL_HIGH,
148         /* CHRG_USB_SUSP */
149         GPIO102_GPIO,
150         /* DISPLAY_ENABLE */
151         GPIO106_GPIO,
152         /* DOCK_DETECT */
153         GPIO116_GPIO | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
154 
155         /* LCD */
156         GPIO54_LCD_LDD_0,
157         GPIO55_LCD_LDD_1,
158         GPIO56_LCD_LDD_2,
159         GPIO57_LCD_LDD_3,
160         GPIO58_LCD_LDD_4,
161         GPIO59_LCD_LDD_5,
162         GPIO60_LCD_LDD_6,
163         GPIO61_LCD_LDD_7,
164         GPIO62_LCD_LDD_8,
165         GPIO63_LCD_LDD_9,
166         GPIO64_LCD_LDD_10,
167         GPIO65_LCD_LDD_11,
168         GPIO66_LCD_LDD_12,
169         GPIO67_LCD_LDD_13,
170         GPIO68_LCD_LDD_14,
171         GPIO69_LCD_LDD_15,
172         GPIO70_LCD_LDD_16,
173         GPIO71_LCD_LDD_17,
174         GPIO72_LCD_FCLK,
175         GPIO73_LCD_LCLK,
176         GPIO74_LCD_PCLK,
177         GPIO75_LCD_BIAS,
178 };
179 
180 static mfp_cfg_t raumfeld_connector_pin_config[] __initdata = {
181         /* UART1 */
182         GPIO77_UART1_RXD,
183         GPIO78_UART1_TXD,
184         GPIO79_UART1_CTS,
185         GPIO81_UART1_DSR,
186         GPIO83_UART1_DTR,
187         GPIO84_UART1_RTS,
188 
189         /* UART3 */
190         GPIO110_UART3_RXD,
191 
192         /* USB Host */
193         GPIO0_2_USBH_PEN,
194         GPIO1_2_USBH_PWR,
195 
196         /* I2C */
197         GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
198         GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
199 
200         /* SPI */
201         GPIO34_GPIO,    /* SPDIF_CS */
202         GPIO96_GPIO,    /* MCLK_CS */
203         GPIO125_GPIO,   /* ACCEL_CS */
204 
205         /* MMC */
206         GPIO3_MMC1_DAT0,
207         GPIO4_MMC1_DAT1,
208         GPIO5_MMC1_DAT2,
209         GPIO6_MMC1_DAT3,
210         GPIO7_MMC1_CLK,
211         GPIO8_MMC1_CMD,
212 
213         /* Ethernet */
214         GPIO1_nCS2,                     /* CS */
215         GPIO40_GPIO | MFP_PULL_HIGH,    /* IRQ */
216 
217         /* SSP for I2S */
218         GPIO85_SSP1_SCLK,
219         GPIO89_SSP1_EXTCLK,
220         GPIO86_SSP1_FRM,
221         GPIO87_SSP1_TXD,
222         GPIO88_SSP1_RXD,
223         GPIO90_SSP1_SYSCLK,
224 
225         /* SSP2 for S/PDIF */
226         GPIO25_SSP2_SCLK,
227         GPIO26_SSP2_FRM,
228         GPIO27_SSP2_TXD,
229         GPIO29_SSP2_EXTCLK,
230 
231         /* LEDs */
232         GPIO35_GPIO | MFP_LPM_PULL_LOW,
233         GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
234 };
235 
236 static mfp_cfg_t raumfeld_speaker_pin_config[] __initdata = {
237         /* UART1 */
238         GPIO77_UART1_RXD,
239         GPIO78_UART1_TXD,
240         GPIO79_UART1_CTS,
241         GPIO81_UART1_DSR,
242         GPIO83_UART1_DTR,
243         GPIO84_UART1_RTS,
244 
245         /* UART3 */
246         GPIO110_UART3_RXD,
247 
248         /* USB Host */
249         GPIO0_2_USBH_PEN,
250         GPIO1_2_USBH_PWR,
251 
252         /* I2C */
253         GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
254         GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
255 
256         /* SPI */
257         GPIO34_GPIO,    /* SPDIF_CS */
258         GPIO96_GPIO,    /* MCLK_CS */
259         GPIO125_GPIO,   /* ACCEL_CS */
260 
261         /* MMC */
262         GPIO3_MMC1_DAT0,
263         GPIO4_MMC1_DAT1,
264         GPIO5_MMC1_DAT2,
265         GPIO6_MMC1_DAT3,
266         GPIO7_MMC1_CLK,
267         GPIO8_MMC1_CMD,
268 
269         /* Ethernet */
270         GPIO1_nCS2,                     /* CS */
271         GPIO40_GPIO | MFP_PULL_HIGH,    /* IRQ */
272 
273         /* SSP for I2S */
274         GPIO85_SSP1_SCLK,
275         GPIO89_SSP1_EXTCLK,
276         GPIO86_SSP1_FRM,
277         GPIO87_SSP1_TXD,
278         GPIO88_SSP1_RXD,
279         GPIO90_SSP1_SYSCLK,
280 
281         /* LEDs */
282         GPIO35_GPIO | MFP_LPM_PULL_LOW,
283         GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
284 };
285 
286 /*
287  * SMSC LAN9220 Ethernet
288  */
289 
290 static struct resource smc91x_resources[] = {
291         {
292                 .start  = PXA3xx_CS2_PHYS,
293                 .end    = PXA3xx_CS2_PHYS + 0xfffff,
294                 .flags  = IORESOURCE_MEM,
295         },
296         {
297                 .start  = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
298                 .end    = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
299                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
300         }
301 };
302 
303 static struct smsc911x_platform_config raumfeld_smsc911x_config = {
304         .phy_interface  = PHY_INTERFACE_MODE_MII,
305         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
306         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
307         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
308 };
309 
310 static struct platform_device smc91x_device = {
311         .name           = "smsc911x",
312         .id             = -1,
313         .num_resources  = ARRAY_SIZE(smc91x_resources),
314         .resource       = smc91x_resources,
315         .dev            = {
316                 .platform_data = &raumfeld_smsc911x_config,
317         }
318 };
319 
320 /**
321  * NAND
322  */
323 
324 static struct mtd_partition raumfeld_nand_partitions[] = {
325         {
326                 .name           = "Bootloader",
327                 .offset         = 0,
328                 .size           = 0xa0000,
329                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
330         },
331         {
332                 .name           = "BootloaderEnvironment",
333                 .offset         = 0xa0000,
334                 .size           = 0x20000,
335         },
336         {
337                 .name           = "BootloaderSplashScreen",
338                 .offset         = 0xc0000,
339                 .size           = 0x60000,
340         },
341         {
342                 .name           = "UBI",
343                 .offset         = 0x120000,
344                 .size           = MTDPART_SIZ_FULL,
345         },
346 };
347 
348 static struct pxa3xx_nand_platform_data raumfeld_nand_info = {
349         .enable_arbiter = 1,
350         .keep_config    = 1,
351         .num_cs         = 1,
352         .parts[0]       = raumfeld_nand_partitions,
353         .nr_parts[0]    = ARRAY_SIZE(raumfeld_nand_partitions),
354 };
355 
356 /**
357  * USB (OHCI) support
358  */
359 
360 static struct pxaohci_platform_data raumfeld_ohci_info = {
361         .port_mode      = PMM_GLOBAL_MODE,
362         .flags          = ENABLE_PORT1,
363 };
364 
365 /**
366  * Rotary encoder input device
367  */
368 
369 static struct gpiod_lookup_table raumfeld_rotary_gpios_table = {
370         .dev_id = "rotary-encoder.0",
371         .table = {
372                 GPIO_LOOKUP_IDX("gpio-0",
373                                 GPIO_VOLENC_A, NULL, 0, GPIO_ACTIVE_LOW),
374                 GPIO_LOOKUP_IDX("gpio-0",
375                                 GPIO_VOLENC_B, NULL, 1, GPIO_ACTIVE_HIGH),
376                 { },
377         },
378 };
379 
380 static const struct property_entry raumfeld_rotary_properties[] __initconst = {
381         PROPERTY_ENTRY_INTEGER("rotary-encoder,steps-per-period", u32, 24),
382         PROPERTY_ENTRY_INTEGER("linux,axis",                      u32, REL_X),
383         PROPERTY_ENTRY_INTEGER("rotary-encoder,relative_axis",    u32, 1),
384         { },
385 };
386 
387 static struct platform_device rotary_encoder_device = {
388         .name           = "rotary-encoder",
389         .id             = 0,
390 };
391 
392 /**
393  * GPIO buttons
394  */
395 
396 static struct gpio_keys_button gpio_keys_button[] = {
397         {
398                 .code                   = KEY_F1,
399                 .type                   = EV_KEY,
400                 .gpio                   = GPIO_KEY1,
401                 .active_low             = 1,
402                 .wakeup                 = 0,
403                 .debounce_interval      = 5, /* ms */
404                 .desc                   = "Button 1",
405         },
406         {
407                 .code                   = KEY_F2,
408                 .type                   = EV_KEY,
409                 .gpio                   = GPIO_KEY2,
410                 .active_low             = 1,
411                 .wakeup                 = 0,
412                 .debounce_interval      = 5, /* ms */
413                 .desc                   = "Button 2",
414         },
415         {
416                 .code                   = KEY_F3,
417                 .type                   = EV_KEY,
418                 .gpio                   = GPIO_KEY3,
419                 .active_low             = 1,
420                 .wakeup                 = 0,
421                 .debounce_interval      = 5, /* ms */
422                 .desc                   = "Button 3",
423         },
424         {
425                 .code                   = KEY_F4,
426                 .type                   = EV_KEY,
427                 .gpio                   = GPIO_RESCUE_BOOT,
428                 .active_low             = 0,
429                 .wakeup                 = 0,
430                 .debounce_interval      = 5, /* ms */
431                 .desc                   = "rescue boot button",
432         },
433         {
434                 .code                   = KEY_F5,
435                 .type                   = EV_KEY,
436                 .gpio                   = GPIO_DOCK_DETECT,
437                 .active_low             = 1,
438                 .wakeup                 = 0,
439                 .debounce_interval      = 5, /* ms */
440                 .desc                   = "dock detect",
441         },
442         {
443                 .code                   = KEY_F6,
444                 .type                   = EV_KEY,
445                 .gpio                   = GPIO_ON_OFF,
446                 .active_low             = 0,
447                 .wakeup                 = 0,
448                 .debounce_interval      = 5, /* ms */
449                 .desc                   = "on_off button",
450         },
451 };
452 
453 static struct gpio_keys_platform_data gpio_keys_platform_data = {
454         .buttons        = gpio_keys_button,
455         .nbuttons       = ARRAY_SIZE(gpio_keys_button),
456         .rep            = 0,
457 };
458 
459 static struct platform_device raumfeld_gpio_keys_device = {
460         .name   = "gpio-keys",
461         .id     = -1,
462         .dev    = {
463                 .platform_data  = &gpio_keys_platform_data,
464         }
465 };
466 
467 /**
468  * GPIO LEDs
469  */
470 
471 static struct gpio_led raumfeld_leds[] = {
472         {
473                 .name           = "raumfeld:1",
474                 .gpio           = GPIO_LED1,
475                 .active_low     = 1,
476                 .default_state  = LEDS_GPIO_DEFSTATE_ON,
477         },
478         {
479                 .name           = "raumfeld:2",
480                 .gpio           = GPIO_LED2,
481                 .active_low     = 0,
482                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
483         }
484 };
485 
486 static struct gpio_led_platform_data raumfeld_led_platform_data = {
487         .leds           = raumfeld_leds,
488         .num_leds       = ARRAY_SIZE(raumfeld_leds),
489 };
490 
491 static struct platform_device raumfeld_led_device = {
492         .name   = "leds-gpio",
493         .id     = -1,
494         .dev    = {
495                 .platform_data = &raumfeld_led_platform_data,
496         },
497 };
498 
499 /**
500  * One-wire (W1 bus) support
501  */
502 
503 static void w1_enable_external_pullup(int enable)
504 {
505         gpio_set_value(GPIO_W1_PULLUP_ENABLE, enable);
506         msleep(100);
507 }
508 
509 static struct gpiod_lookup_table raumfeld_w1_gpiod_table = {
510         .dev_id = "w1-gpio",
511         .table = {
512                 GPIO_LOOKUP_IDX("gpio-pxa", GPIO_ONE_WIRE, NULL, 0,
513                                 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
514         },
515 };
516 
517 static struct w1_gpio_platform_data w1_gpio_platform_data = {
518         .enable_external_pullup = w1_enable_external_pullup,
519 };
520 
521 static struct platform_device raumfeld_w1_gpio_device = {
522         .name   = "w1-gpio",
523         .dev    = {
524                 .platform_data = &w1_gpio_platform_data
525         }
526 };
527 
528 static void __init raumfeld_w1_init(void)
529 {
530         int ret = gpio_request(GPIO_W1_PULLUP_ENABLE,
531                                 "W1 external pullup enable");
532 
533         if (ret < 0)
534                 pr_warn("Unable to request GPIO_W1_PULLUP_ENABLE\n");
535         else
536                 gpio_direction_output(GPIO_W1_PULLUP_ENABLE, 0);
537 
538         gpiod_add_lookup_table(&raumfeld_w1_gpiod_table);
539         platform_device_register(&raumfeld_w1_gpio_device);
540 }
541 
542 /**
543  * Framebuffer device
544  */
545 
546 static struct pwm_lookup raumfeld_pwm_lookup[] = {
547         PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 10000,
548                    PWM_POLARITY_NORMAL),
549 };
550 
551 /* PWM controlled backlight */
552 static struct platform_pwm_backlight_data raumfeld_pwm_backlight_data = {
553         .max_brightness = 100,
554         .dft_brightness = 100,
555         .enable_gpio    = -1,
556 };
557 
558 static struct platform_device raumfeld_pwm_backlight_device = {
559         .name   = "pwm-backlight",
560         .dev    = {
561                 .parent         = &pxa27x_device_pwm0.dev,
562                 .platform_data  = &raumfeld_pwm_backlight_data,
563         }
564 };
565 
566 /* LT3593 controlled backlight */
567 static struct gpio_led raumfeld_lt3593_led = {
568         .name           = "backlight",
569         .gpio           = mfp_to_gpio(MFP_PIN_GPIO17),
570         .default_state  = LEDS_GPIO_DEFSTATE_ON,
571 };
572 
573 static struct gpio_led_platform_data raumfeld_lt3593_platform_data = {
574         .leds           = &raumfeld_lt3593_led,
575         .num_leds       = 1,
576 };
577 
578 static struct platform_device raumfeld_lt3593_device = {
579         .name   = "leds-lt3593",
580         .id     = -1,
581         .dev    = {
582                 .platform_data = &raumfeld_lt3593_platform_data,
583         },
584 };
585 
586 static struct pxafb_mode_info sharp_lq043t3dx02_mode = {
587         .pixclock       = 111000,
588         .xres           = 480,
589         .yres           = 272,
590         .bpp            = 16,
591         .hsync_len      = 41,
592         .left_margin    = 2,
593         .right_margin   = 1,
594         .vsync_len      = 10,
595         .upper_margin   = 3,
596         .lower_margin   = 1,
597         .sync           = 0,
598 };
599 
600 static struct pxafb_mach_info raumfeld_sharp_lcd_info = {
601         .modes          = &sharp_lq043t3dx02_mode,
602         .num_modes      = 1,
603         .video_mem_size = 0x400000,
604         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
605 #ifdef CONFIG_PXA3XX_GCU
606         .acceleration_enabled = 1,
607 #endif
608 };
609 
610 static void __init raumfeld_lcd_init(void)
611 {
612         int ret;
613 
614         ret = gpio_request(GPIO_TFT_VA_EN, "display VA enable");
615         if (ret < 0)
616                 pr_warn("Unable to request GPIO_TFT_VA_EN\n");
617         else
618                 gpio_direction_output(GPIO_TFT_VA_EN, 1);
619 
620         msleep(100);
621 
622         ret = gpio_request(GPIO_DISPLAY_ENABLE, "display enable");
623         if (ret < 0)
624                 pr_warn("Unable to request GPIO_DISPLAY_ENABLE\n");
625         else
626                 gpio_direction_output(GPIO_DISPLAY_ENABLE, 1);
627 
628         /* Hardware revision 2 has the backlight regulator controlled
629          * by an LT3593, earlier and later devices use PWM for that. */
630         if ((system_rev & 0xff) == 2) {
631                 platform_device_register(&raumfeld_lt3593_device);
632         } else {
633                 mfp_cfg_t raumfeld_pwm_pin_config = GPIO17_PWM0_OUT;
634                 pxa3xx_mfp_config(&raumfeld_pwm_pin_config, 1);
635                 pwm_add_table(raumfeld_pwm_lookup,
636                               ARRAY_SIZE(raumfeld_pwm_lookup));
637                 platform_device_register(&raumfeld_pwm_backlight_device);
638         }
639 
640         pxa_set_fb_info(NULL, &raumfeld_sharp_lcd_info);
641         platform_device_register(&pxa3xx_device_gcu);
642 }
643 
644 /**
645  * SPI devices
646  */
647 
648 static struct spi_gpio_platform_data raumfeld_spi_platform_data = {
649         .sck            = GPIO_SPI_CLK,
650         .mosi           = GPIO_SPI_MOSI,
651         .miso           = GPIO_SPI_MISO,
652         .num_chipselect = 3,
653 };
654 
655 static struct platform_device raumfeld_spi_device = {
656         .name   = "spi_gpio",
657         .id     = 0,
658         .dev    = {
659                 .platform_data  = &raumfeld_spi_platform_data,
660         }
661 };
662 
663 static struct lis3lv02d_platform_data lis3_pdata = {
664         .click_flags    = LIS3_CLICK_SINGLE_X |
665                           LIS3_CLICK_SINGLE_Y |
666                           LIS3_CLICK_SINGLE_Z,
667         .irq_cfg        = LIS3_IRQ1_CLICK | LIS3_IRQ2_CLICK,
668         .wakeup_flags   = LIS3_WAKEUP_X_LO | LIS3_WAKEUP_X_HI |
669                           LIS3_WAKEUP_Y_LO | LIS3_WAKEUP_Y_HI |
670                           LIS3_WAKEUP_Z_LO | LIS3_WAKEUP_Z_HI,
671         .wakeup_thresh  = 10,
672         .click_thresh_x = 10,
673         .click_thresh_y = 10,
674         .click_thresh_z = 10,
675 };
676 
677 #define SPI_AK4104      \
678 {                       \
679         .modalias       = "ak4104-codec",       \
680         .max_speed_hz   = 10000,                \
681         .bus_num        = 0,                    \
682         .chip_select    = 0,                    \
683         .controller_data = (void *) GPIO_SPDIF_CS,      \
684 }
685 
686 #define SPI_LIS3        \
687 {                       \
688         .modalias       = "lis3lv02d_spi",      \
689         .max_speed_hz   = 1000000,              \
690         .bus_num        = 0,                    \
691         .chip_select    = 1,                    \
692         .controller_data = (void *) GPIO_ACCEL_CS,      \
693         .platform_data  = &lis3_pdata,          \
694         .irq            = PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ),      \
695 }
696 
697 #define SPI_DAC7512     \
698 {       \
699         .modalias       = "dac7512",            \
700         .max_speed_hz   = 1000000,              \
701         .bus_num        = 0,                    \
702         .chip_select    = 2,                    \
703         .controller_data = (void *) GPIO_MCLK_DAC_CS,   \
704 }
705 
706 static struct spi_board_info connector_spi_devices[] __initdata = {
707         SPI_AK4104,
708         SPI_DAC7512,
709 };
710 
711 static struct spi_board_info speaker_spi_devices[] __initdata = {
712         SPI_DAC7512,
713 };
714 
715 static struct spi_board_info controller_spi_devices[] __initdata = {
716         SPI_LIS3,
717 };
718 
719 /**
720  * MMC for Marvell Libertas 8688 via SDIO
721  */
722 
723 static int raumfeld_mci_init(struct device *dev, irq_handler_t isr, void *data)
724 {
725         gpio_set_value(GPIO_W2W_RESET, 1);
726         gpio_set_value(GPIO_W2W_PDN, 1);
727 
728         return 0;
729 }
730 
731 static void raumfeld_mci_exit(struct device *dev, void *data)
732 {
733         gpio_set_value(GPIO_W2W_RESET, 0);
734         gpio_set_value(GPIO_W2W_PDN, 0);
735 }
736 
737 static struct pxamci_platform_data raumfeld_mci_platform_data = {
738         .init                   = raumfeld_mci_init,
739         .exit                   = raumfeld_mci_exit,
740         .detect_delay_ms        = 200,
741         .gpio_card_detect       = -1,
742         .gpio_card_ro           = -1,
743         .gpio_power             = -1,
744 };
745 
746 /*
747  * External power / charge logic
748  */
749 
750 static int power_supply_init(struct device *dev)
751 {
752         return 0;
753 }
754 
755 static void power_supply_exit(struct device *dev)
756 {
757 }
758 
759 static int raumfeld_is_ac_online(void)
760 {
761         return !gpio_get_value(GPIO_CHARGE_DC_OK);
762 }
763 
764 static int raumfeld_is_usb_online(void)
765 {
766         return 0;
767 }
768 
769 static char *raumfeld_power_supplicants[] = { "ds2760-battery.0" };
770 
771 static void raumfeld_power_signal_charged(void)
772 {
773         struct power_supply *psy =
774                 power_supply_get_by_name(raumfeld_power_supplicants[0]);
775 
776         if (psy) {
777                 power_supply_set_battery_charged(psy);
778                 power_supply_put(psy);
779         }
780 }
781 
782 static int raumfeld_power_resume(void)
783 {
784         /* check if GPIO_CHARGE_DONE went low while we were sleeping */
785         if (!gpio_get_value(GPIO_CHARGE_DONE))
786                 raumfeld_power_signal_charged();
787 
788         return 0;
789 }
790 
791 static struct pda_power_pdata power_supply_info = {
792         .init                   = power_supply_init,
793         .is_ac_online           = raumfeld_is_ac_online,
794         .is_usb_online          = raumfeld_is_usb_online,
795         .exit                   = power_supply_exit,
796         .supplied_to            = raumfeld_power_supplicants,
797         .num_supplicants        = ARRAY_SIZE(raumfeld_power_supplicants),
798         .resume                 = raumfeld_power_resume,
799 };
800 
801 static struct resource power_supply_resources[] = {
802         {
803                 .name  = "ac",
804                 .flags = IORESOURCE_IRQ |
805                          IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
806                 .start = GPIO_CHARGE_DC_OK,
807                 .end   = GPIO_CHARGE_DC_OK,
808         },
809 };
810 
811 static irqreturn_t charge_done_irq(int irq, void *dev_id)
812 {
813         raumfeld_power_signal_charged();
814         return IRQ_HANDLED;
815 }
816 
817 static struct platform_device raumfeld_power_supply = {
818         .name = "pda-power",
819         .id   = -1,
820         .dev  = {
821                 .platform_data = &power_supply_info,
822         },
823         .resource      = power_supply_resources,
824         .num_resources = ARRAY_SIZE(power_supply_resources),
825 };
826 
827 static void __init raumfeld_power_init(void)
828 {
829         int ret;
830 
831         /* Set PEN2 high to enable maximum charge current */
832         ret = gpio_request(GPIO_CHRG_PEN2, "CHRG_PEN2");
833         if (ret < 0)
834                 pr_warn("Unable to request GPIO_CHRG_PEN2\n");
835         else
836                 gpio_direction_output(GPIO_CHRG_PEN2, 1);
837 
838         ret = gpio_request(GPIO_CHARGE_DC_OK, "CABLE_DC_OK");
839         if (ret < 0)
840                 pr_warn("Unable to request GPIO_CHARGE_DC_OK\n");
841 
842         ret = gpio_request(GPIO_CHARGE_USB_SUSP, "CHARGE_USB_SUSP");
843         if (ret < 0)
844                 pr_warn("Unable to request GPIO_CHARGE_USB_SUSP\n");
845         else
846                 gpio_direction_output(GPIO_CHARGE_USB_SUSP, 0);
847 
848         power_supply_resources[0].start = gpio_to_irq(GPIO_CHARGE_DC_OK);
849         power_supply_resources[0].end = gpio_to_irq(GPIO_CHARGE_DC_OK);
850 
851         ret = request_irq(gpio_to_irq(GPIO_CHARGE_DONE),
852                         &charge_done_irq, IORESOURCE_IRQ_LOWEDGE,
853                         "charge_done", NULL);
854 
855         if (ret < 0)
856                 printk(KERN_ERR "%s: unable to register irq %d\n", __func__,
857                         GPIO_CHARGE_DONE);
858         else
859                 platform_device_register(&raumfeld_power_supply);
860 }
861 
862 /* Fixed regulator for AUDIO_VA, 0-0048 maps to the cs4270 codec device */
863 
864 static struct regulator_consumer_supply audio_va_consumer_supply =
865         REGULATOR_SUPPLY("va", "0-0048");
866 
867 static struct regulator_init_data audio_va_initdata = {
868         .consumer_supplies = &audio_va_consumer_supply,
869         .num_consumer_supplies = 1,
870         .constraints = {
871                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
872         },
873 };
874 
875 static struct fixed_voltage_config audio_va_config = {
876         .supply_name            = "audio_va",
877         .microvolts             = 5000000,
878         .gpio                   = GPIO_AUDIO_VA_ENABLE,
879         .enable_high            = 1,
880         .enabled_at_boot        = 0,
881         .init_data              = &audio_va_initdata,
882 };
883 
884 static struct platform_device audio_va_device = {
885         .name   = "reg-fixed-voltage",
886         .id     = 0,
887         .dev    = {
888                 .platform_data = &audio_va_config,
889         },
890 };
891 
892 /* Dummy supplies for Codec's VD/VLC */
893 
894 static struct regulator_consumer_supply audio_dummy_supplies[] = {
895         REGULATOR_SUPPLY("vd", "0-0048"),
896         REGULATOR_SUPPLY("vlc", "0-0048"),
897 };
898 
899 static struct regulator_init_data audio_dummy_initdata = {
900         .consumer_supplies = audio_dummy_supplies,
901         .num_consumer_supplies = ARRAY_SIZE(audio_dummy_supplies),
902         .constraints = {
903                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
904         },
905 };
906 
907 static struct fixed_voltage_config audio_dummy_config = {
908         .supply_name            = "audio_vd",
909         .microvolts             = 3300000,
910         .gpio                   = -1,
911         .init_data              = &audio_dummy_initdata,
912 };
913 
914 static struct platform_device audio_supply_dummy_device = {
915         .name   = "reg-fixed-voltage",
916         .id     = 1,
917         .dev    = {
918                 .platform_data = &audio_dummy_config,
919         },
920 };
921 
922 static struct platform_device *audio_regulator_devices[] = {
923         &audio_va_device,
924         &audio_supply_dummy_device,
925 };
926 
927 /**
928  * Regulator support via MAX8660
929  */
930 
931 static struct regulator_consumer_supply vcc_mmc_supply =
932         REGULATOR_SUPPLY("vmmc", "pxa2xx-mci.0");
933 
934 static struct regulator_init_data vcc_mmc_init_data = {
935         .constraints = {
936                 .min_uV                 = 3300000,
937                 .max_uV                 = 3300000,
938                 .valid_modes_mask       = REGULATOR_MODE_NORMAL,
939                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS |
940                                           REGULATOR_CHANGE_VOLTAGE |
941                                           REGULATOR_CHANGE_MODE,
942         },
943         .consumer_supplies = &vcc_mmc_supply,
944         .num_consumer_supplies = 1,
945 };
946 
947 static struct max8660_subdev_data max8660_v6_subdev_data = {
948         .id             = MAX8660_V6,
949         .name           = "vmmc",
950         .platform_data  = &vcc_mmc_init_data,
951 };
952 
953 static struct max8660_platform_data max8660_pdata = {
954         .subdevs = &max8660_v6_subdev_data,
955         .num_subdevs = 1,
956 };
957 
958 /**
959  * I2C devices
960  */
961 
962 static struct i2c_board_info raumfeld_pwri2c_board_info = {
963         .type           = "max8660",
964         .addr           = 0x34,
965         .platform_data  = &max8660_pdata,
966 };
967 
968 static struct i2c_board_info raumfeld_connector_i2c_board_info __initdata = {
969         .type   = "cs4270",
970         .addr   = 0x48,
971 };
972 
973 static struct gpiod_lookup_table raumfeld_controller_gpios_table = {
974         .dev_id = "0-000a",
975         .table = {
976                 GPIO_LOOKUP("gpio-pxa",
977                             GPIO_TOUCH_IRQ, "attn", GPIO_ACTIVE_HIGH),
978                 { },
979         },
980 };
981 
982 static const struct resource raumfeld_controller_resources[] __initconst = {
983         {
984                 .start  = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
985                 .end    = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
986                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
987         },
988 };
989 
990 static struct i2c_board_info raumfeld_controller_i2c_board_info __initdata = {
991         .type   = "eeti_ts",
992         .addr   = 0x0a,
993         .resources = raumfeld_controller_resources,
994         .num_resources = ARRAY_SIZE(raumfeld_controller_resources),
995 };
996 
997 static struct platform_device *raumfeld_common_devices[] = {
998         &raumfeld_gpio_keys_device,
999         &raumfeld_led_device,
1000         &raumfeld_spi_device,
1001 };
1002 
1003 static void __init raumfeld_audio_init(void)
1004 {
1005         int ret;
1006 
1007         ret = gpio_request(GPIO_CODEC_RESET, "cs4270 reset");
1008         if (ret < 0)
1009                 pr_warn("unable to request GPIO_CODEC_RESET\n");
1010         else
1011                 gpio_direction_output(GPIO_CODEC_RESET, 1);
1012 
1013         ret = gpio_request(GPIO_SPDIF_RESET, "ak4104 s/pdif reset");
1014         if (ret < 0)
1015                 pr_warn("unable to request GPIO_SPDIF_RESET\n");
1016         else
1017                 gpio_direction_output(GPIO_SPDIF_RESET, 1);
1018 
1019         ret = gpio_request(GPIO_MCLK_RESET, "MCLK reset");
1020         if (ret < 0)
1021                 pr_warn("unable to request GPIO_MCLK_RESET\n");
1022         else
1023                 gpio_direction_output(GPIO_MCLK_RESET, 1);
1024 
1025         platform_add_devices(ARRAY_AND_SIZE(audio_regulator_devices));
1026 }
1027 
1028 static void __init raumfeld_common_init(void)
1029 {
1030         int ret;
1031 
1032         /* The on/off button polarity has changed after revision 1 */
1033         if ((system_rev & 0xff) > 1) {
1034                 int i;
1035 
1036                 for (i = 0; i < ARRAY_SIZE(gpio_keys_button); i++)
1037                         if (!strcmp(gpio_keys_button[i].desc, "on_off button"))
1038                                 gpio_keys_button[i].active_low = 1;
1039         }
1040 
1041         enable_irq_wake(IRQ_WAKEUP0);
1042 
1043         pxa3xx_set_nand_info(&raumfeld_nand_info);
1044         pxa3xx_set_i2c_power_info(NULL);
1045         pxa_set_ohci_info(&raumfeld_ohci_info);
1046         pxa_set_mci_info(&raumfeld_mci_platform_data);
1047         pxa_set_i2c_info(NULL);
1048         pxa_set_ffuart_info(NULL);
1049 
1050         ret = gpio_request(GPIO_W2W_RESET, "Wi2Wi reset");
1051         if (ret < 0)
1052                 pr_warn("Unable to request GPIO_W2W_RESET\n");
1053         else
1054                 gpio_direction_output(GPIO_W2W_RESET, 0);
1055 
1056         ret = gpio_request(GPIO_W2W_PDN, "Wi2Wi powerup");
1057         if (ret < 0)
1058                 pr_warn("Unable to request GPIO_W2W_PDN\n");
1059         else
1060                 gpio_direction_output(GPIO_W2W_PDN, 0);
1061 
1062         /* this can be used to switch off the device */
1063         ret = gpio_request(GPIO_SHUTDOWN_SUPPLY, "supply shutdown");
1064         if (ret < 0)
1065                 pr_warn("Unable to request GPIO_SHUTDOWN_SUPPLY\n");
1066         else
1067                 gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0);
1068 
1069         platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices));
1070         i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1);
1071 }
1072 
1073 static void __init __maybe_unused raumfeld_controller_init(void)
1074 {
1075         int ret;
1076 
1077         pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_controller_pin_config));
1078 
1079         gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1080         device_add_properties(&rotary_encoder_device.dev,
1081                               raumfeld_rotary_properties);
1082         platform_device_register(&rotary_encoder_device);
1083 
1084         spi_register_board_info(ARRAY_AND_SIZE(controller_spi_devices));
1085 
1086         gpiod_add_lookup_table(&raumfeld_controller_gpios_table);
1087         i2c_register_board_info(0, &raumfeld_controller_i2c_board_info, 1);
1088 
1089         ret = gpio_request(GPIO_SHUTDOWN_BATT, "battery shutdown");
1090         if (ret < 0)
1091                 pr_warn("Unable to request GPIO_SHUTDOWN_BATT\n");
1092         else
1093                 gpio_direction_output(GPIO_SHUTDOWN_BATT, 0);
1094 
1095         raumfeld_common_init();
1096         raumfeld_power_init();
1097         raumfeld_lcd_init();
1098         raumfeld_w1_init();
1099 }
1100 
1101 static void __init __maybe_unused raumfeld_connector_init(void)
1102 {
1103         pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_connector_pin_config));
1104         spi_register_board_info(ARRAY_AND_SIZE(connector_spi_devices));
1105         i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1106 
1107         platform_device_register(&smc91x_device);
1108 
1109         raumfeld_audio_init();
1110         raumfeld_common_init();
1111 }
1112 
1113 static void __init __maybe_unused raumfeld_speaker_init(void)
1114 {
1115         pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_speaker_pin_config));
1116         spi_register_board_info(ARRAY_AND_SIZE(speaker_spi_devices));
1117         i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1118 
1119         platform_device_register(&smc91x_device);
1120 
1121         gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1122         device_add_properties(&rotary_encoder_device.dev,
1123                               raumfeld_rotary_properties);
1124         platform_device_register(&rotary_encoder_device);
1125 
1126         raumfeld_audio_init();
1127         raumfeld_common_init();
1128 }
1129 
1130 /* physical memory regions */
1131 #define RAUMFELD_SDRAM_BASE     0xa0000000      /* SDRAM region */
1132 
1133 #ifdef CONFIG_MACH_RAUMFELD_RC
1134 MACHINE_START(RAUMFELD_RC, "Raumfeld Controller")
1135         .atag_offset    = 0x100,
1136         .init_machine   = raumfeld_controller_init,
1137         .map_io         = pxa3xx_map_io,
1138         .nr_irqs        = PXA_NR_IRQS,
1139         .init_irq       = pxa3xx_init_irq,
1140         .handle_irq     = pxa3xx_handle_irq,
1141         .init_time      = pxa_timer_init,
1142         .restart        = pxa_restart,
1143 MACHINE_END
1144 #endif
1145 
1146 #ifdef CONFIG_MACH_RAUMFELD_CONNECTOR
1147 MACHINE_START(RAUMFELD_CONNECTOR, "Raumfeld Connector")
1148         .atag_offset    = 0x100,
1149         .init_machine   = raumfeld_connector_init,
1150         .map_io         = pxa3xx_map_io,
1151         .nr_irqs        = PXA_NR_IRQS,
1152         .init_irq       = pxa3xx_init_irq,
1153         .handle_irq     = pxa3xx_handle_irq,
1154         .init_time      = pxa_timer_init,
1155         .restart        = pxa_restart,
1156 MACHINE_END
1157 #endif
1158 
1159 #ifdef CONFIG_MACH_RAUMFELD_SPEAKER
1160 MACHINE_START(RAUMFELD_SPEAKER, "Raumfeld Speaker")
1161         .atag_offset    = 0x100,
1162         .init_machine   = raumfeld_speaker_init,
1163         .map_io         = pxa3xx_map_io,
1164         .nr_irqs        = PXA_NR_IRQS,
1165         .init_irq       = pxa3xx_init_irq,
1166         .handle_irq     = pxa3xx_handle_irq,
1167         .init_time      = pxa_timer_init,
1168         .restart        = pxa_restart,
1169 MACHINE_END
1170 #endif
1171 

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