/*

   * Hardware definitions for Palm Treo smartphones
   *
   * currently supported:
   *     Palm Treo 680 (GSM)

   *     Palm Centro 685 (GSM)

   *
   * Author:     Tomas Cech <sleep_walker@suse.cz>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * (find more info at www.hackndev.com)
   *
   */
  
  #include <linux/platform_device.h>
  #include <linux/delay.h>
  #include <linux/irq.h>
  #include <linux/gpio_keys.h>
  #include <linux/input.h>

  #include <linux/memblock.h>

  #include <linux/pda_power.h>
  #include <linux/pwm_backlight.h>
  #include <linux/gpio.h>

  #include <linux/power_supply.h>

  #include <linux/w1-gpio.h>
  
  #include <asm/mach-types.h>
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  
  #include <mach/pxa27x.h>
  #include <mach/pxa27x-udc.h>
  #include <mach/audio.h>

  #include <mach/palmtreo.h>

  #include <linux/platform_data/mmc-pxamci.h>
  #include <linux/platform_data/video-pxafb.h>
  #include <linux/platform_data/irda-pxaficp.h>
  #include <linux/platform_data/keypad-pxa27x.h>

  #include <mach/udc.h>

  #include <linux/platform_data/usb-ohci-pxa27x.h>

  #include <mach/pxa2xx-regs.h>

  #include <linux/platform_data/asoc-palm27x.h>
  #include <linux/platform_data/camera-pxa.h>

  #include <mach/palm27x.h>

  
  #include <sound/pxa2xx-lib.h>
  
  #include "generic.h"
  #include "devices.h"
  
  /******************************************************************************
   * Pin configuration
   ******************************************************************************/

  static unsigned long treo_pin_config[] __initdata = {

  	/* MMC */
  	GPIO32_MMC_CLK,
  	GPIO92_MMC_DAT_0,
  	GPIO109_MMC_DAT_1,
  	GPIO110_MMC_DAT_2,
  	GPIO111_MMC_DAT_3,
  	GPIO112_MMC_CMD,

  	GPIO113_GPIO,				/* SD detect */
  
  	/* AC97 */
  	GPIO28_AC97_BITCLK,
  	GPIO29_AC97_SDATA_IN_0,
  	GPIO30_AC97_SDATA_OUT,
  	GPIO31_AC97_SYNC,
  	GPIO89_AC97_SYSCLK,
  	GPIO95_AC97_nRESET,
  
  	/* IrDA */
  	GPIO46_FICP_RXD,
  	GPIO47_FICP_TXD,
  
  	/* PWM */
  	GPIO16_PWM0_OUT,
  
  	/* USB */
  	GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,	/* usb detect */
  
  	/* MATRIX KEYPAD */

  	GPIO101_KP_MKIN_1,
  	GPIO102_KP_MKIN_2,
  	GPIO97_KP_MKIN_3,
  	GPIO98_KP_MKIN_4,

  	GPIO91_KP_MKIN_6,
  	GPIO13_KP_MKIN_7,
  	GPIO103_KP_MKOUT_0 | MFP_LPM_DRIVE_HIGH,
  	GPIO104_KP_MKOUT_1,
  	GPIO105_KP_MKOUT_2,
  	GPIO106_KP_MKOUT_3,
  	GPIO107_KP_MKOUT_4,
  	GPIO108_KP_MKOUT_5,
  	GPIO96_KP_MKOUT_6,
  	GPIO93_KP_DKIN_0 | WAKEUP_ON_LEVEL_HIGH,	/* Hotsync button */

  	/* Quick Capture Interface */
  	GPIO84_CIF_FV,
  	GPIO85_CIF_LV,
  	GPIO53_CIF_MCLK,
  	GPIO54_CIF_PCLK,
  	GPIO81_CIF_DD_0,
  	GPIO55_CIF_DD_1,
  	GPIO51_CIF_DD_2,
  	GPIO50_CIF_DD_3,
  	GPIO52_CIF_DD_4,
  	GPIO48_CIF_DD_5,
  	GPIO17_CIF_DD_6,
  	GPIO12_CIF_DD_7,
  
  	/* I2C */
  	GPIO117_I2C_SCL,
  	GPIO118_I2C_SDA,
  
  	/* GSM */
  	GPIO14_GPIO | WAKEUP_ON_EDGE_BOTH,	/* GSM host wake up */
  	GPIO34_FFUART_RXD,
  	GPIO35_FFUART_CTS,
  	GPIO39_FFUART_TXD,
  	GPIO41_FFUART_RTS,
  
  	/* MISC. */
  	GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,	/* external power detect */
  	GPIO15_GPIO | WAKEUP_ON_EDGE_BOTH,	/* silent switch */
  	GPIO116_GPIO,				/* headphone detect */
  	GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH,	/* bluetooth host wake up */
  };

  #ifdef CONFIG_MACH_TREO680
  static unsigned long treo680_pin_config[] __initdata = {
  	GPIO33_GPIO,    /* SD read only */
  
  	/* MATRIX KEYPAD - different wake up source */
  	GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  	GPIO99_KP_MKIN_5,

  
  	/* LCD... L_BIAS alt fn not configured on Treo680; is GPIO instead */
  	GPIOxx_LCD_16BPP,
  	GPIO74_LCD_FCLK,
  	GPIO75_LCD_LCLK,
  	GPIO76_LCD_PCLK,

  };
  #endif /* CONFIG_MACH_TREO680 */

  #ifdef CONFIG_MACH_CENTRO
  static unsigned long centro685_pin_config[] __initdata = {
  	/* Bluetooth attached to BT UART*/
  	MFP_CFG_OUT(GPIO80, AF0, DRIVE_LOW),    /* power: LOW = off */
  	GPIO42_BTUART_RXD,
  	GPIO43_BTUART_TXD,
  	GPIO44_BTUART_CTS,
  	GPIO45_BTUART_RTS,
  
  	/* MATRIX KEYPAD - different wake up source */
  	GPIO100_KP_MKIN_0,
  	GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,

  
  	/* LCD */
  	GPIOxx_LCD_TFT_16BPP,

  };
  #endif /* CONFIG_MACH_CENTRO */

  /******************************************************************************

   * GPIO keyboard
   ******************************************************************************/

  #if IS_ENABLED(CONFIG_KEYBOARD_PXA27x)

  static const unsigned int treo680_matrix_keys[] = {

  	KEY(0, 0, KEY_F8),		/* Red/Off/Power */
  	KEY(0, 1, KEY_LEFT),
  	KEY(0, 2, KEY_LEFTCTRL),	/* Alternate */
  	KEY(0, 3, KEY_L),
  	KEY(0, 4, KEY_A),
  	KEY(0, 5, KEY_Q),
  	KEY(0, 6, KEY_P),
  
  	KEY(1, 0, KEY_RIGHTCTRL),	/* Menu */
  	KEY(1, 1, KEY_RIGHT),
  	KEY(1, 2, KEY_LEFTSHIFT),	/* Left shift */
  	KEY(1, 3, KEY_Z),
  	KEY(1, 4, KEY_S),
  	KEY(1, 5, KEY_W),
  
  	KEY(2, 0, KEY_F1),		/* Phone */
  	KEY(2, 1, KEY_UP),
  	KEY(2, 2, KEY_0),
  	KEY(2, 3, KEY_X),
  	KEY(2, 4, KEY_D),
  	KEY(2, 5, KEY_E),
  
  	KEY(3, 0, KEY_F10),		/* Calendar */
  	KEY(3, 1, KEY_DOWN),
  	KEY(3, 2, KEY_SPACE),
  	KEY(3, 3, KEY_C),
  	KEY(3, 4, KEY_F),
  	KEY(3, 5, KEY_R),
  
  	KEY(4, 0, KEY_F12),		/* Mail */
  	KEY(4, 1, KEY_KPENTER),
  	KEY(4, 2, KEY_RIGHTALT),	/* Alt */
  	KEY(4, 3, KEY_V),
  	KEY(4, 4, KEY_G),
  	KEY(4, 5, KEY_T),
  
  	KEY(5, 0, KEY_F9),		/* Home */
  	KEY(5, 1, KEY_PAGEUP),		/* Side up */
  	KEY(5, 2, KEY_DOT),
  	KEY(5, 3, KEY_B),
  	KEY(5, 4, KEY_H),
  	KEY(5, 5, KEY_Y),
  
  	KEY(6, 0, KEY_TAB),		/* Side Activate */
  	KEY(6, 1, KEY_PAGEDOWN),	/* Side down */
  	KEY(6, 2, KEY_ENTER),
  	KEY(6, 3, KEY_N),
  	KEY(6, 4, KEY_J),
  	KEY(6, 5, KEY_U),
  
  	KEY(7, 0, KEY_F6),		/* Green/Call */
  	KEY(7, 1, KEY_O),
  	KEY(7, 2, KEY_BACKSPACE),
  	KEY(7, 3, KEY_M),
  	KEY(7, 4, KEY_K),
  	KEY(7, 5, KEY_I),
  };

  static const unsigned int centro_matrix_keys[] = {

  	KEY(0, 0, KEY_F9),		/* Home */
  	KEY(0, 1, KEY_LEFT),
  	KEY(0, 2, KEY_LEFTCTRL),	/* Alternate */
  	KEY(0, 3, KEY_L),
  	KEY(0, 4, KEY_A),
  	KEY(0, 5, KEY_Q),
  	KEY(0, 6, KEY_P),
  
  	KEY(1, 0, KEY_RIGHTCTRL),	/* Menu */
  	KEY(1, 1, KEY_RIGHT),
  	KEY(1, 2, KEY_LEFTSHIFT),	/* Left shift */
  	KEY(1, 3, KEY_Z),
  	KEY(1, 4, KEY_S),
  	KEY(1, 5, KEY_W),
  
  	KEY(2, 0, KEY_F1),		/* Phone */
  	KEY(2, 1, KEY_UP),
  	KEY(2, 2, KEY_0),
  	KEY(2, 3, KEY_X),
  	KEY(2, 4, KEY_D),
  	KEY(2, 5, KEY_E),
  
  	KEY(3, 0, KEY_F10),		/* Calendar */
  	KEY(3, 1, KEY_DOWN),
  	KEY(3, 2, KEY_SPACE),
  	KEY(3, 3, KEY_C),
  	KEY(3, 4, KEY_F),
  	KEY(3, 5, KEY_R),
  
  	KEY(4, 0, KEY_F12),		/* Mail */
  	KEY(4, 1, KEY_KPENTER),
  	KEY(4, 2, KEY_RIGHTALT),	/* Alt */
  	KEY(4, 3, KEY_V),
  	KEY(4, 4, KEY_G),
  	KEY(4, 5, KEY_T),
  
  	KEY(5, 0, KEY_F8),		/* Red/Off/Power */
  	KEY(5, 1, KEY_PAGEUP),		/* Side up */
  	KEY(5, 2, KEY_DOT),
  	KEY(5, 3, KEY_B),
  	KEY(5, 4, KEY_H),
  	KEY(5, 5, KEY_Y),
  
  	KEY(6, 0, KEY_TAB),		/* Side Activate */
  	KEY(6, 1, KEY_PAGEDOWN),	/* Side down */
  	KEY(6, 2, KEY_ENTER),
  	KEY(6, 3, KEY_N),
  	KEY(6, 4, KEY_J),
  	KEY(6, 5, KEY_U),
  
  	KEY(7, 0, KEY_F6),		/* Green/Call */
  	KEY(7, 1, KEY_O),
  	KEY(7, 2, KEY_BACKSPACE),
  	KEY(7, 3, KEY_M),
  	KEY(7, 4, KEY_K),
  	KEY(7, 5, KEY_I),
  };

  static struct matrix_keymap_data treo680_matrix_keymap_data = {
  	.keymap			= treo680_matrix_keys,
  	.keymap_size		= ARRAY_SIZE(treo680_matrix_keys),
  };
  
  static struct matrix_keymap_data centro_matrix_keymap_data = {
  	.keymap			= centro_matrix_keys,
  	.keymap_size		= ARRAY_SIZE(centro_matrix_keys),
  };

  static struct pxa27x_keypad_platform_data treo680_keypad_pdata = {

  	.matrix_key_rows	= 8,
  	.matrix_key_cols	= 7,

  	.matrix_keymap_data	= &treo680_matrix_keymap_data,

  	.direct_key_map		= { KEY_CONNECT },
  	.direct_key_num		= 1,
  
  	.debounce_interval	= 30,
  };

  static void __init palmtreo_kpc_init(void)

  {

  	static struct pxa27x_keypad_platform_data *data = &treo680_keypad_pdata;

  	if (machine_is_centro())
  		data->matrix_keymap_data = &centro_matrix_keymap_data;

  	pxa_set_keypad_info(&treo680_keypad_pdata);

  }

  #else
  static inline void palmtreo_kpc_init(void) {}
  #endif

  
  /******************************************************************************
   * USB host
   ******************************************************************************/

  #if IS_ENABLED(CONFIG_USB_OHCI_HCD)

  static struct pxaohci_platform_data treo680_ohci_info = {
  	.port_mode    = PMM_PERPORT_MODE,
  	.flags        = ENABLE_PORT1 | ENABLE_PORT3,
  	.power_budget = 0,
  };

  static void __init palmtreo_uhc_init(void)

  {

  	if (machine_is_treo680())
  		pxa_set_ohci_info(&treo680_ohci_info);

  }

  #else
  static inline void palmtreo_uhc_init(void) {}
  #endif

  
  /******************************************************************************
   * Vibra and LEDs
   ******************************************************************************/

  static struct gpio_led treo680_gpio_leds[] = {

  	{
  		.name			= "treo680:vibra:vibra",
  		.default_trigger	= "none",
  		.gpio			= GPIO_NR_TREO680_VIBRATE_EN,
  	},
  	{
  		.name			= "treo680:green:led",
  		.default_trigger	= "mmc0",

  		.gpio			= GPIO_NR_TREO_GREEN_LED,

  	},
  	{

  		.name			= "treo680:white:keybbl",

  		.default_trigger	= "none",
  		.gpio			= GPIO_NR_TREO680_KEYB_BL,
  	},
  };

  static struct gpio_led_platform_data treo680_gpio_led_info = {
  	.leds		= treo680_gpio_leds,
  	.num_leds	= ARRAY_SIZE(treo680_gpio_leds),

  };

  static struct gpio_led centro_gpio_leds[] = {
  	{
  		.name			= "centro:vibra:vibra",
  		.default_trigger	= "none",
  		.gpio			= GPIO_NR_CENTRO_VIBRATE_EN,
  	},
  	{
  		.name			= "centro:green:led",
  		.default_trigger	= "mmc0",
  		.gpio			= GPIO_NR_TREO_GREEN_LED,
  	},
  	{
  		.name			= "centro:white:keybbl",
  		.default_trigger	= "none",
  		.active_low		= 1,
  		.gpio			= GPIO_NR_CENTRO_KEYB_BL,
  	},
  };
  
  static struct gpio_led_platform_data centro_gpio_led_info = {
  	.leds		= centro_gpio_leds,
  	.num_leds	= ARRAY_SIZE(centro_gpio_leds),
  };

  static struct platform_device palmtreo_leds = {

  	.name   = "leds-gpio",
  	.id     = -1,

  };

  static void __init palmtreo_leds_init(void)

  {

  	if (machine_is_centro())
  		palmtreo_leds.dev.platform_data = &centro_gpio_led_info;

  	else if (machine_is_treo680())
  		palmtreo_leds.dev.platform_data = &treo680_gpio_led_info;

  	platform_device_register(&palmtreo_leds);

  }
  
  /******************************************************************************

   * diskonchip docg4 flash
   ******************************************************************************/
  #if defined(CONFIG_MACH_TREO680)
  /* REVISIT: does the centro have this device also? */
  #if IS_ENABLED(CONFIG_MTD_NAND_DOCG4)
  static struct resource docg4_resources[] = {
  	{
  		.start	= 0x00000000,
  		.end	= 0x00001FFF,
  		.flags	= IORESOURCE_MEM,
  	},
  };
  
  static struct platform_device treo680_docg4_flash = {
  	.name   = "docg4",
  	.id     = -1,
  	.resource = docg4_resources,
  	.num_resources = ARRAY_SIZE(docg4_resources),
  };
  
  static void __init treo680_docg4_flash_init(void)
  {
  	platform_device_register(&treo680_docg4_flash);
  }
  #else
  static inline void treo680_docg4_flash_init(void) {}
  #endif
  #endif
  
  /******************************************************************************

   * Machine init
   ******************************************************************************/

  static void __init treo_reserve(void)
  {

  	memblock_reserve(0xa0000000, 0x1000);
  	memblock_reserve(0xa2000000, 0x1000);

  }

  static void __init palmphone_common_init(void)

  {

  	pxa2xx_mfp_config(ARRAY_AND_SIZE(treo_pin_config));

  	pxa_set_ffuart_info(NULL);
  	pxa_set_btuart_info(NULL);
  	pxa_set_stuart_info(NULL);

  	palm27x_pm_init(TREO_STR_BASE);
  	palm27x_lcd_init(GPIO_NR_TREO_BL_POWER, &palm_320x320_new_lcd_mode);
  	palm27x_udc_init(GPIO_NR_TREO_USB_DETECT, GPIO_NR_TREO_USB_PULLUP, 1);
  	palm27x_irda_init(GPIO_NR_TREO_IR_EN);
  	palm27x_ac97_init(-1, -1, -1, 95);
  	palm27x_pwm_init(GPIO_NR_TREO_BL_POWER, -1);
  	palm27x_power_init(GPIO_NR_TREO_POWER_DETECT, -1);
  	palm27x_pmic_init();
  	palmtreo_kpc_init();
  	palmtreo_uhc_init();
  	palmtreo_leds_init();

  }

  #ifdef CONFIG_MACH_TREO680

  void __init treo680_gpio_init(void)
  {
  	unsigned int gpio;
  
  	/* drive all three lcd gpios high initially */
  	const unsigned long lcd_flags = GPIOF_INIT_HIGH | GPIOF_DIR_OUT;
  
  	/*
  	 * LCD GPIO initialization...
  	 */
  
  	/*
  	 * This is likely the power to the lcd.  Toggling it low/high appears to
  	 * turn the lcd off/on.  Can be toggled after lcd is initialized without
  	 * any apparent adverse effects to the lcd operation.  Note that this
  	 * gpio line is used by the lcd controller as the L_BIAS signal, but
  	 * treo680 configures it as gpio.
  	 */
  	gpio = GPIO_NR_TREO680_LCD_POWER;
  	if (gpio_request_one(gpio, lcd_flags, "LCD power") < 0)
  		goto fail;
  
  	/*
  	 * These two are called "enables", for lack of a better understanding.
  	 * If either of these are toggled after the lcd is initialized, the
  	 * image becomes degraded.  N.B. The IPL shipped with the treo
  	 * configures GPIO_NR_TREO680_LCD_EN_N as output and drives it high.  If
  	 * the IPL is ever reprogrammed, this initialization may be need to be
  	 * revisited.
  	 */
  	gpio = GPIO_NR_TREO680_LCD_EN;
  	if (gpio_request_one(gpio, lcd_flags, "LCD enable") < 0)
  		goto fail;
  	gpio = GPIO_NR_TREO680_LCD_EN_N;
  	if (gpio_request_one(gpio, lcd_flags, "LCD enable_n") < 0)
  		goto fail;
  
  	/* driving this low turns LCD on */
  	gpio_set_value(GPIO_NR_TREO680_LCD_EN_N, 0);
  
  	return;
   fail:
  	pr_err("gpio %d initialization failed
  ", gpio);
  	gpio_free(GPIO_NR_TREO680_LCD_POWER);
  	gpio_free(GPIO_NR_TREO680_LCD_EN);
  	gpio_free(GPIO_NR_TREO680_LCD_EN_N);
  }

  static void __init treo680_init(void)
  {

  	pxa2xx_mfp_config(ARRAY_AND_SIZE(treo680_pin_config));

  	palmphone_common_init();

  	treo680_gpio_init();

  	palm27x_mmc_init(GPIO_NR_TREO_SD_DETECT_N, GPIO_NR_TREO680_SD_READONLY,
  			GPIO_NR_TREO680_SD_POWER, 0);

  	treo680_docg4_flash_init();

  }

  #endif

  #ifdef CONFIG_MACH_CENTRO

  static void __init centro_init(void)
  {
  	pxa2xx_mfp_config(ARRAY_AND_SIZE(centro685_pin_config));
  	palmphone_common_init();
  	palm27x_mmc_init(GPIO_NR_TREO_SD_DETECT_N, -1,
  			GPIO_NR_CENTRO_SD_POWER, 1);

  }

  #endif

  #ifdef CONFIG_MACH_TREO680

  MACHINE_START(TREO680, "Palm Treo 680")

  	.atag_offset    = 0x100,

  	.map_io         = pxa27x_map_io,

  	.reserve	= treo_reserve,

  	.nr_irqs	= PXA_NR_IRQS,

  	.init_irq       = pxa27x_init_irq,

  	.handle_irq       = pxa27x_handle_irq,

  	.init_time	= pxa_timer_init,

  	.init_machine   = treo680_init,

  	.restart	= pxa_restart,

  MACHINE_END

  #endif

  #ifdef CONFIG_MACH_CENTRO

  MACHINE_START(CENTRO, "Palm Centro 685")

  	.atag_offset    = 0x100,

  	.map_io         = pxa27x_map_io,

  	.reserve	= treo_reserve,

  	.nr_irqs	= PXA_NR_IRQS,

  	.init_irq       = pxa27x_init_irq,

  	.handle_irq       = pxa27x_handle_irq,

  	.init_time	= pxa_timer_init,

  	.init_machine	= centro_init,

  	.restart	= pxa_restart,

  MACHINE_END

  #endif