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

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

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