2 * linux/arch/arm/mach-omap1/board-ams-delta.c
4 * Modified from board-generic.c
6 * Board specific inits for the Amstrad E3 (codename Delta) videophone
8 * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
14 #include <linux/gpio/driver.h>
15 #include <linux/gpio/machine.h>
16 #include <linux/gpio.h>
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/input.h>
20 #include <linux/interrupt.h>
21 #include <linux/leds.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/consumer.h>
24 #include <linux/regulator/fixed.h>
25 #include <linux/regulator/machine.h>
26 #include <linux/serial_8250.h>
27 #include <linux/export.h>
28 #include <linux/omapfb.h>
30 #include <linux/platform_data/gpio-omap.h>
32 #include <media/soc_camera.h>
34 #include <asm/serial.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
39 #include <linux/platform_data/keypad-omap.h>
42 #include <mach/hardware.h>
46 #include "ams-delta-fiq.h"
47 #include "board-ams-delta.h"
51 static const unsigned int ams_delta_keymap[] = {
52 KEY(0, 0, KEY_F1), /* Advert */
54 KEY(0, 3, KEY_COFFEE), /* Games */
55 KEY(0, 2, KEY_QUESTION), /* Directory */
56 KEY(2, 3, KEY_CONNECT), /* Internet */
57 KEY(1, 2, KEY_SHOP), /* Services */
58 KEY(1, 1, KEY_PHONE), /* VoiceMail */
60 KEY(0, 1, KEY_DELETE), /* Delete */
61 KEY(2, 2, KEY_PLAY), /* Play */
62 KEY(1, 0, KEY_PAGEUP), /* Up */
63 KEY(1, 3, KEY_PAGEDOWN), /* Down */
64 KEY(2, 0, KEY_EMAIL), /* ReadEmail */
65 KEY(2, 1, KEY_STOP), /* Stop */
67 /* Numeric keypad portion */
78 KEY(3, 7, KEY_KPASTERISK),
79 KEY(3, 5, KEY_KPDOT), /* # key */
80 KEY(7, 2, KEY_NUMLOCK), /* Mute */
81 KEY(7, 1, KEY_KPMINUS), /* Recall */
82 KEY(6, 1, KEY_KPPLUS), /* Redial */
83 KEY(7, 6, KEY_KPSLASH), /* Handsfree */
84 KEY(6, 0, KEY_ENTER), /* Video */
86 KEY(7, 4, KEY_CAMERA), /* Photo */
88 KEY(0, 4, KEY_F2), /* Home */
89 KEY(1, 4, KEY_F3), /* Office */
90 KEY(2, 4, KEY_F4), /* Mobile */
91 KEY(7, 7, KEY_F5), /* SMS */
92 KEY(7, 5, KEY_F6), /* Email */
94 /* QWERTY portion of keypad */
123 KEY(6, 2, KEY_SPACE),
125 KEY(7, 0, KEY_LEFTSHIFT), /* Vol up */
126 KEY(7, 3, KEY_LEFTCTRL), /* Vol down */
129 #define LATCH1_PHYS 0x01000000
130 #define LATCH1_VIRT 0xEA000000
131 #define MODEM_PHYS 0x04000000
132 #define MODEM_VIRT 0xEB000000
133 #define LATCH2_PHYS 0x08000000
134 #define LATCH2_VIRT 0xEC000000
136 static struct map_desc ams_delta_io_desc[] __initdata = {
137 /* AMS_DELTA_LATCH1 */
139 .virtual = LATCH1_VIRT,
140 .pfn = __phys_to_pfn(LATCH1_PHYS),
141 .length = 0x01000000,
144 /* AMS_DELTA_LATCH2 */
146 .virtual = LATCH2_VIRT,
147 .pfn = __phys_to_pfn(LATCH2_PHYS),
148 .length = 0x01000000,
151 /* AMS_DELTA_MODEM */
153 .virtual = MODEM_VIRT,
154 .pfn = __phys_to_pfn(MODEM_PHYS),
155 .length = 0x01000000,
160 static const struct omap_lcd_config ams_delta_lcd_config __initconst = {
161 .ctrl_name = "internal",
164 static struct omap_usb_config ams_delta_usb_config __initdata = {
170 #define LATCH1_NGPIO 8
172 static struct resource latch1_resources[] = {
175 .start = LATCH1_PHYS,
176 .end = LATCH1_PHYS + (LATCH1_NGPIO - 1) / 8,
177 .flags = IORESOURCE_MEM,
181 #define LATCH1_LABEL "latch1"
183 static struct bgpio_pdata latch1_pdata = {
184 .label = LATCH1_LABEL,
185 .ngpio = LATCH1_NGPIO,
188 static struct platform_device latch1_gpio_device = {
189 .name = "basic-mmio-gpio",
191 .resource = latch1_resources,
192 .num_resources = ARRAY_SIZE(latch1_resources),
194 .platform_data = &latch1_pdata,
198 #define LATCH1_PIN_LED_CAMERA 0
199 #define LATCH1_PIN_LED_ADVERT 1
200 #define LATCH1_PIN_LED_MAIL 2
201 #define LATCH1_PIN_LED_HANDSFREE 3
202 #define LATCH1_PIN_LED_VOICEMAIL 4
203 #define LATCH1_PIN_LED_VOICE 5
204 #define LATCH1_PIN_DOCKIT1 6
205 #define LATCH1_PIN_DOCKIT2 7
207 #define LATCH2_NGPIO 16
209 static struct resource latch2_resources[] = {
212 .start = LATCH2_PHYS,
213 .end = LATCH2_PHYS + (LATCH2_NGPIO - 1) / 8,
214 .flags = IORESOURCE_MEM,
218 #define LATCH2_LABEL "latch2"
220 static struct bgpio_pdata latch2_pdata = {
221 .label = LATCH2_LABEL,
222 .ngpio = LATCH2_NGPIO,
225 static struct platform_device latch2_gpio_device = {
226 .name = "basic-mmio-gpio",
228 .resource = latch2_resources,
229 .num_resources = ARRAY_SIZE(latch2_resources),
231 .platform_data = &latch2_pdata,
235 #define LATCH2_PIN_LCD_VBLEN 0
236 #define LATCH2_PIN_LCD_NDISP 1
237 #define LATCH2_PIN_NAND_NCE 2
238 #define LATCH2_PIN_NAND_NRE 3
239 #define LATCH2_PIN_NAND_NWP 4
240 #define LATCH2_PIN_NAND_NWE 5
241 #define LATCH2_PIN_NAND_ALE 6
242 #define LATCH2_PIN_NAND_CLE 7
243 #define LATCH2_PIN_KEYBRD_PWR 8
244 #define LATCH2_PIN_KEYBRD_DATAOUT 9
245 #define LATCH2_PIN_SCARD_RSTIN 10
246 #define LATCH2_PIN_SCARD_CMDVCC 11
247 #define LATCH2_PIN_MODEM_NRESET 12
248 #define LATCH2_PIN_MODEM_CODEC 13
249 #define LATCH2_PIN_AUDIO_MUTE 14
250 #define LATCH2_PIN_HOOKFLASH 15
252 static struct regulator_consumer_supply modem_nreset_consumers[] = {
253 REGULATOR_SUPPLY("RESET#", "serial8250.1"),
254 REGULATOR_SUPPLY("POR", "cx20442-codec"),
257 static struct regulator_init_data modem_nreset_data = {
259 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
262 .num_consumer_supplies = ARRAY_SIZE(modem_nreset_consumers),
263 .consumer_supplies = modem_nreset_consumers,
266 static struct fixed_voltage_config modem_nreset_config = {
267 .supply_name = "modem_nreset",
268 .microvolts = 3300000,
269 .startup_delay = 25000,
271 .enabled_at_boot = 1,
272 .init_data = &modem_nreset_data,
275 static struct platform_device modem_nreset_device = {
276 .name = "reg-fixed-voltage",
279 .platform_data = &modem_nreset_config,
283 static struct gpiod_lookup_table ams_delta_nreset_gpiod_table = {
284 .dev_id = "reg-fixed-voltage",
286 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_MODEM_NRESET,
287 NULL, GPIO_ACTIVE_HIGH),
292 struct modem_private_data {
293 struct regulator *regulator;
296 static struct modem_private_data modem_priv;
298 static struct platform_device ams_delta_nand_device = {
299 .name = "ams-delta-nand",
303 #define OMAP_GPIO_LABEL "gpio-0-15"
304 #define OMAP_MPUIO_LABEL "mpuio"
306 static struct gpiod_lookup_table ams_delta_nand_gpio_table = {
308 GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_NAND_RB, "rdy",
310 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NCE, "nce", 0),
311 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NRE, "nre", 0),
312 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWP, "nwp", 0),
313 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWE, "nwe", 0),
314 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_ALE, "ale", 0),
315 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_CLE, "cle", 0),
316 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 0, "data", 0, 0),
317 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 1, "data", 1, 0),
318 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 2, "data", 2, 0),
319 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 3, "data", 3, 0),
320 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 4, "data", 4, 0),
321 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 5, "data", 5, 0),
322 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 6, "data", 6, 0),
323 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 7, "data", 7, 0),
328 static struct resource ams_delta_kp_resources[] = {
330 .start = INT_KEYBOARD,
332 .flags = IORESOURCE_IRQ,
336 static const struct matrix_keymap_data ams_delta_keymap_data = {
337 .keymap = ams_delta_keymap,
338 .keymap_size = ARRAY_SIZE(ams_delta_keymap),
341 static struct omap_kp_platform_data ams_delta_kp_data = {
344 .keymap_data = &ams_delta_keymap_data,
348 static struct platform_device ams_delta_kp_device = {
349 .name = "omap-keypad",
352 .platform_data = &ams_delta_kp_data,
354 .num_resources = ARRAY_SIZE(ams_delta_kp_resources),
355 .resource = ams_delta_kp_resources,
358 static struct platform_device ams_delta_lcd_device = {
359 .name = "lcd_ams_delta",
363 static struct gpiod_lookup_table ams_delta_lcd_gpio_table = {
365 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_VBLEN, "vblen", 0),
366 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_NDISP, "ndisp", 0),
371 static struct gpio_led gpio_leds[] __initdata = {
372 [LATCH1_PIN_LED_CAMERA] = {
374 .default_state = LEDS_GPIO_DEFSTATE_OFF,
375 #ifdef CONFIG_LEDS_TRIGGERS
376 .default_trigger = "ams_delta_camera",
379 [LATCH1_PIN_LED_ADVERT] = {
381 .default_state = LEDS_GPIO_DEFSTATE_OFF,
383 [LATCH1_PIN_LED_MAIL] = {
385 .default_state = LEDS_GPIO_DEFSTATE_OFF,
387 [LATCH1_PIN_LED_HANDSFREE] = {
389 .default_state = LEDS_GPIO_DEFSTATE_OFF,
391 [LATCH1_PIN_LED_VOICEMAIL] = {
393 .default_state = LEDS_GPIO_DEFSTATE_OFF,
395 [LATCH1_PIN_LED_VOICE] = {
397 .default_state = LEDS_GPIO_DEFSTATE_OFF,
401 static const struct gpio_led_platform_data leds_pdata __initconst = {
403 .num_leds = ARRAY_SIZE(gpio_leds),
406 static struct gpiod_lookup_table leds_gpio_table = {
408 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_CAMERA, NULL,
409 LATCH1_PIN_LED_CAMERA, 0),
410 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_ADVERT, NULL,
411 LATCH1_PIN_LED_ADVERT, 0),
412 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_MAIL, NULL,
413 LATCH1_PIN_LED_MAIL, 0),
414 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_HANDSFREE, NULL,
415 LATCH1_PIN_LED_HANDSFREE, 0),
416 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_VOICEMAIL, NULL,
417 LATCH1_PIN_LED_VOICEMAIL, 0),
418 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_VOICE, NULL,
419 LATCH1_PIN_LED_VOICE, 0),
424 static struct i2c_board_info ams_delta_camera_board_info[] = {
426 I2C_BOARD_INFO("ov6650", 0x60),
430 #ifdef CONFIG_LEDS_TRIGGERS
431 DEFINE_LED_TRIGGER(ams_delta_camera_led_trigger);
433 static int ams_delta_camera_power(struct device *dev, int power)
439 led_trigger_event(ams_delta_camera_led_trigger, LED_FULL);
441 led_trigger_event(ams_delta_camera_led_trigger, LED_OFF);
445 #define ams_delta_camera_power NULL
448 static struct soc_camera_link ams_delta_iclink = {
449 .bus_id = 0, /* OMAP1 SoC camera bus */
451 .board_info = &ams_delta_camera_board_info[0],
452 .module_name = "ov6650",
453 .power = ams_delta_camera_power,
456 static struct platform_device ams_delta_camera_device = {
457 .name = "soc-camera-pdrv",
460 .platform_data = &ams_delta_iclink,
464 static struct omap1_cam_platform_data ams_delta_camera_platform_data = {
465 .camexclk_khz = 12000, /* default 12MHz clock, no extra DPLL */
466 .lclk_khz_max = 1334, /* results in 5fps CIF, 10fps QCIF */
469 static struct platform_device ams_delta_audio_device = {
470 .name = "ams-delta-audio",
474 static struct gpiod_lookup_table ams_delta_audio_gpio_table = {
476 GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_HOOK_SWITCH,
478 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_MODEM_CODEC,
484 static struct platform_device cx20442_codec_device = {
485 .name = "cx20442-codec",
489 static struct resource ams_delta_serio_resources[] = {
491 .flags = IORESOURCE_IRQ,
493 * Initialize IRQ resource with invalid IRQ number.
494 * It will be replaced with dynamically allocated GPIO IRQ
495 * obtained from GPIO chip as soon as the chip is available.
502 static struct platform_device ams_delta_serio_device = {
503 .name = "ams-delta-serio",
504 .id = PLATFORM_DEVID_NONE,
507 * Initialize .platform_data explicitly with NULL to
508 * indicate it is going to be used. It will be replaced
509 * with FIQ buffer address as soon as FIQ is initialized.
511 .platform_data = NULL,
513 .num_resources = ARRAY_SIZE(ams_delta_serio_resources),
514 .resource = ams_delta_serio_resources,
517 static struct regulator_consumer_supply keybrd_pwr_consumers[] = {
519 * Initialize supply .dev_name with NULL. It will be replaced
520 * with serio dev_name() as soon as the serio device is registered.
522 REGULATOR_SUPPLY("vcc", NULL),
525 static struct regulator_init_data keybrd_pwr_initdata = {
527 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
529 .num_consumer_supplies = ARRAY_SIZE(keybrd_pwr_consumers),
530 .consumer_supplies = keybrd_pwr_consumers,
533 static struct fixed_voltage_config keybrd_pwr_config = {
534 .supply_name = "keybrd_pwr",
535 .microvolts = 5000000,
537 .init_data = &keybrd_pwr_initdata,
540 static struct platform_device keybrd_pwr_device = {
541 .name = "reg-fixed-voltage",
542 .id = PLATFORM_DEVID_AUTO,
544 .platform_data = &keybrd_pwr_config,
548 static struct gpiod_lookup_table keybrd_pwr_gpio_table = {
550 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_KEYBRD_PWR, NULL,
556 static struct platform_device *ams_delta_devices[] __initdata = {
559 &ams_delta_kp_device,
560 &ams_delta_camera_device,
561 &ams_delta_audio_device,
562 &ams_delta_serio_device,
563 &ams_delta_nand_device,
564 &ams_delta_lcd_device,
565 &cx20442_codec_device,
568 static struct gpiod_lookup_table *ams_delta_gpio_tables[] __initdata = {
569 &ams_delta_nreset_gpiod_table,
570 &ams_delta_audio_gpio_table,
571 &keybrd_pwr_gpio_table,
572 &ams_delta_lcd_gpio_table,
573 &ams_delta_nand_gpio_table,
577 * Some drivers may not use GPIO lookup tables but need to be provided
578 * with GPIO numbers. The same applies to GPIO based IRQ lines - some
579 * drivers may even not use GPIO layer but expect just IRQ numbers.
580 * We could either define GPIO lookup tables then use them on behalf
581 * of those devices, or we can use GPIO driver level methods for
582 * identification of GPIO and IRQ numbers. For the purpose of the latter,
583 * defina a helper function which identifies GPIO chips by their labels.
585 static int gpiochip_match_by_label(struct gpio_chip *chip, void *data)
589 return !strcmp(label, chip->label);
592 static struct gpiod_hog ams_delta_gpio_hogs[] = {
593 GPIO_HOG(LATCH2_LABEL, LATCH2_PIN_KEYBRD_DATAOUT, "keybrd_dataout",
594 GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW),
595 GPIO_HOG(LATCH2_LABEL, LATCH2_PIN_AUDIO_MUTE, "audio_mute",
596 GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW),
600 static struct plat_serial8250_port ams_delta_modem_ports[];
603 * Obtain MODEM IRQ GPIO descriptor using its hardware pin
604 * number and assign related IRQ number to the MODEM port.
605 * Keep the GPIO descriptor open so nobody steps in.
607 static void __init modem_assign_irq(struct gpio_chip *chip)
609 struct gpio_desc *gpiod;
611 gpiod = gpiochip_request_own_desc(chip, AMS_DELTA_GPIO_PIN_MODEM_IRQ,
614 pr_err("%s: modem IRQ GPIO request failed (%ld)\n", __func__,
617 gpiod_direction_input(gpiod);
618 ams_delta_modem_ports[0].irq = gpiod_to_irq(gpiod);
623 * The purpose of this function is to take care of proper initialization of
624 * devices and data structures which depend on GPIO lines provided by OMAP GPIO
625 * banks but their drivers don't use GPIO lookup tables or GPIO layer at all.
626 * The function may be called as soon as OMAP GPIO devices are probed.
627 * Since that happens at postcore_initcall, it can be called successfully
628 * from init_machine or later.
629 * Dependent devices may be registered from within this function or later.
631 static void __init omap_gpio_deps_init(void)
633 struct gpio_chip *chip;
635 chip = gpiochip_find(OMAP_GPIO_LABEL, gpiochip_match_by_label);
637 pr_err("%s: OMAP GPIO chip not found\n", __func__);
642 * Start with FIQ initialization as it may have to request
643 * and release successfully each OMAP GPIO pin in turn.
645 ams_delta_init_fiq(chip, &ams_delta_serio_device);
647 modem_assign_irq(chip);
651 * Initialize latch2 pins with values which are safe for dependent on-board
652 * devices or useful for their successull initialization even before GPIO
653 * driver takes control over the latch pins:
654 * - LATCH2_PIN_LCD_VBLEN = 0
655 * - LATCH2_PIN_LCD_NDISP = 0 Keep LCD device powered off before its
656 * driver takes control over it.
657 * - LATCH2_PIN_NAND_NCE = 0
658 * - LATCH2_PIN_NAND_NWP = 0 Keep NAND device down and write-
659 * protected before its driver takes
661 * - LATCH2_PIN_KEYBRD_PWR = 0 Keep keyboard powered off before serio
662 * driver takes control over it.
663 * - LATCH2_PIN_KEYBRD_DATAOUT = 0 Keep low to avoid corruption of first
664 * byte of data received from attached
665 * keyboard when serio device is probed;
666 * the pin is also hogged low by the latch2
667 * GPIO driver as soon as it is ready.
668 * - LATCH2_PIN_MODEM_NRESET = 1 Enable voice MODEM device, allowing for
669 * its successful probe even before a
670 * regulator it depends on, which in turn
671 * takes control over the pin, is set up.
672 * - LATCH2_PIN_MODEM_CODEC = 1 Attach voice MODEM CODEC data port
673 * to the MODEM so the CODEC is under
674 * control even if audio driver doesn't
677 static void __init ams_delta_latch2_init(void)
679 u16 latch2 = 1 << LATCH2_PIN_MODEM_NRESET | 1 << LATCH2_PIN_MODEM_CODEC;
681 __raw_writew(latch2, LATCH2_VIRT);
684 static void __init ams_delta_init(void)
686 struct platform_device *leds_pdev;
688 /* mux pins for uarts */
689 omap_cfg_reg(UART1_TX);
690 omap_cfg_reg(UART1_RTS);
692 /* parallel camera interface */
693 omap_cfg_reg(H19_1610_CAM_EXCLK);
694 omap_cfg_reg(J15_1610_CAM_LCLK);
695 omap_cfg_reg(L18_1610_CAM_VS);
696 omap_cfg_reg(L15_1610_CAM_HS);
697 omap_cfg_reg(L19_1610_CAM_D0);
698 omap_cfg_reg(K14_1610_CAM_D1);
699 omap_cfg_reg(K15_1610_CAM_D2);
700 omap_cfg_reg(K19_1610_CAM_D3);
701 omap_cfg_reg(K18_1610_CAM_D4);
702 omap_cfg_reg(J14_1610_CAM_D5);
703 omap_cfg_reg(J19_1610_CAM_D6);
704 omap_cfg_reg(J18_1610_CAM_D7);
706 omap_gpio_deps_init();
707 ams_delta_latch2_init();
708 gpiod_add_hogs(ams_delta_gpio_hogs);
711 omap_register_i2c_bus(1, 100, NULL, 0);
713 omap1_usb_init(&ams_delta_usb_config);
714 omap1_set_camera_info(&ams_delta_camera_platform_data);
715 #ifdef CONFIG_LEDS_TRIGGERS
716 led_trigger_register_simple("ams_delta_camera",
717 &ams_delta_camera_led_trigger);
719 platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
722 * As soon as regulator consumers have been registered, assign their
723 * dev_names to consumer supply entries of respective regulators.
725 keybrd_pwr_consumers[0].dev_name =
726 dev_name(&ams_delta_serio_device.dev);
729 * Once consumer supply entries are populated with dev_names,
730 * register regulator devices. At this stage only the keyboard
731 * power regulator has its consumer supply table fully populated.
733 platform_device_register(&keybrd_pwr_device);
736 * As soon as GPIO consumers have been registered, assign
737 * their dev_names to respective GPIO lookup tables.
739 ams_delta_audio_gpio_table.dev_id =
740 dev_name(&ams_delta_audio_device.dev);
741 keybrd_pwr_gpio_table.dev_id = dev_name(&keybrd_pwr_device.dev);
742 ams_delta_nand_gpio_table.dev_id = dev_name(&ams_delta_nand_device.dev);
743 ams_delta_lcd_gpio_table.dev_id = dev_name(&ams_delta_lcd_device.dev);
746 * Once GPIO lookup tables are populated with dev_names, register them.
748 gpiod_add_lookup_tables(ams_delta_gpio_tables,
749 ARRAY_SIZE(ams_delta_gpio_tables));
751 leds_pdev = gpio_led_register_device(PLATFORM_DEVID_NONE, &leds_pdata);
752 if (!IS_ERR(leds_pdev)) {
753 leds_gpio_table.dev_id = dev_name(&leds_pdev->dev);
754 gpiod_add_lookup_table(&leds_gpio_table);
757 omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);
759 omapfb_set_lcd_config(&ams_delta_lcd_config);
762 static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
764 struct modem_private_data *priv = port->private_data;
770 if (IS_ERR(priv->regulator))
777 ret = regulator_enable(priv->regulator);
779 ret = regulator_disable(priv->regulator);
785 "ams_delta modem_pm: failed to %sable regulator: %d\n",
786 state ? "dis" : "en", ret);
789 static struct plat_serial8250_port ams_delta_modem_ports[] = {
791 .membase = IOMEM(MODEM_VIRT),
792 .mapbase = MODEM_PHYS,
793 .irq = IRQ_NOTCONNECTED, /* changed later */
794 .flags = UPF_BOOT_AUTOCONF,
795 .irqflags = IRQF_TRIGGER_RISING,
798 .uartclk = BASE_BAUD * 16,
800 .private_data = &modem_priv,
805 static struct platform_device ams_delta_modem_device = {
806 .name = "serial8250",
807 .id = PLAT8250_DEV_PLATFORM1,
809 .platform_data = ams_delta_modem_ports,
813 static int __init modem_nreset_init(void)
817 err = platform_device_register(&modem_nreset_device);
819 pr_err("Couldn't register the modem regulator device\n");
826 * This function expects MODEM IRQ number already assigned to the port.
827 * The MODEM device requires its RESET# pin kept high during probe.
828 * That requirement can be fulfilled in several ways:
829 * - with a descriptor of already functional modem_nreset regulator
830 * assigned to the MODEM private data,
831 * - with the regulator not yet controlled by modem_pm function but
832 * already enabled by default on probe,
833 * - before the modem_nreset regulator is probed, with the pin already
834 * set high explicitly.
835 * The last one is already guaranteed by ams_delta_latch2_init() called
837 * In order to avoid taking over ttyS0 device slot, the MODEM device
838 * should be registered after OMAP serial ports. Since those ports
839 * are registered at arch_initcall, this function can be called safely
840 * at arch_initcall_sync earliest.
842 static int __init ams_delta_modem_init(void)
846 if (!machine_is_ams_delta())
849 omap_cfg_reg(M14_1510_GPIO2);
851 /* Initialize the modem_nreset regulator consumer before use */
852 modem_priv.regulator = ERR_PTR(-ENODEV);
854 err = platform_device_register(&ams_delta_modem_device);
858 arch_initcall_sync(ams_delta_modem_init);
860 static int __init late_init(void)
864 err = modem_nreset_init();
869 * Once the modem device is registered, the modem_nreset
870 * regulator can be requested on behalf of that device.
872 modem_priv.regulator = regulator_get(&ams_delta_modem_device.dev,
874 if (IS_ERR(modem_priv.regulator)) {
875 err = PTR_ERR(modem_priv.regulator);
881 platform_device_unregister(&ams_delta_modem_device);
885 static void __init ams_delta_init_late(void)
891 static void __init ams_delta_map_io(void)
894 iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
897 MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
898 /* Maintainer: Jonathan McDowell <noodles@earth.li> */
899 .atag_offset = 0x100,
900 .map_io = ams_delta_map_io,
901 .init_early = omap1_init_early,
902 .init_irq = omap1_init_irq,
903 .handle_irq = omap1_handle_irq,
904 .init_machine = ams_delta_init,
905 .init_late = ams_delta_init_late,
906 .init_time = omap1_timer_init,
907 .restart = omap1_restart,