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Commit 4a899d5e authored by Tony Lindgren's avatar Tony Lindgren
Browse files

ARM: OMAP3: Initialize more devices for LDP 



Based on an earlier patches by Stanley.Miao <stanley.miao@windriver.com>
and Nishant Kamat <nskamat@ti.com>.

Note that at the ads7846 support still needs support for vaux_control
for the touchscreen to work.

Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 49adf465

arch/arm/mach-omap2/board-ldp.c

+203 −1
Original line number Diff line number Diff line
@@ -16,11 +16,13 @@ 
#include <linux/platform_device.h>

#include <linux/delay.h>

#include <linux/input.h>

#include <linux/gpio_keys.h>

#include <linux/workqueue.h>

#include <linux/err.h>

#include <linux/clk.h>

#include <linux/spi/spi.h>

#include <linux/spi/ads7846.h>

#include <linux/regulator/machine.h>

#include <linux/i2c/twl4030.h>

#include <linux/io.h>

#include <linux/smsc911x.h>
@@ -39,6 +41,7 @@ 
#include <asm/delay.h>

#include <mach/control.h>

#include <mach/usb.h>

#include <mach/keypad.h>



#include "mmc-twl4030.h"
@@ -77,6 +80,165 @@ static struct platform_device ldp_smsc911x_device = { 
	},

};



static int ldp_twl4030_keymap[] = {

	KEY(0, 0, KEY_1),

	KEY(1, 0, KEY_2),

	KEY(2, 0, KEY_3),

	KEY(0, 1, KEY_4),

	KEY(1, 1, KEY_5),

	KEY(2, 1, KEY_6),

	KEY(3, 1, KEY_F5),

	KEY(0, 2, KEY_7),

	KEY(1, 2, KEY_8),

	KEY(2, 2, KEY_9),

	KEY(3, 2, KEY_F6),

	KEY(0, 3, KEY_F7),

	KEY(1, 3, KEY_0),

	KEY(2, 3, KEY_F8),

	PERSISTENT_KEY(4, 5),

	KEY(4, 4, KEY_VOLUMEUP),

	KEY(5, 5, KEY_VOLUMEDOWN),

	0

};



static struct twl4030_keypad_data ldp_kp_twl4030_data = {

	.rows		= 6,

	.cols		= 6,

	.keymap		= ldp_twl4030_keymap,

	.keymapsize	= ARRAY_SIZE(ldp_twl4030_keymap),

	.rep		= 1,

};



static struct gpio_keys_button ldp_gpio_keys_buttons[] = {

	[0] = {

		.code			= KEY_ENTER,

		.gpio			= 101,

		.desc			= "enter sw",

		.active_low		= 1,

		.debounce_interval	= 30,

	},

	[1] = {

		.code			= KEY_F1,

		.gpio			= 102,

		.desc			= "func 1",

		.active_low		= 1,

		.debounce_interval	= 30,

	},

	[2] = {

		.code			= KEY_F2,

		.gpio			= 103,

		.desc			= "func 2",

		.active_low		= 1,

		.debounce_interval	= 30,

	},

	[3] = {

		.code			= KEY_F3,

		.gpio			= 104,

		.desc			= "func 3",

		.active_low		= 1,

		.debounce_interval 	= 30,

	},

	[4] = {

		.code			= KEY_F4,

		.gpio			= 105,

		.desc			= "func 4",

		.active_low		= 1,

		.debounce_interval	= 30,

	},

	[5] = {

		.code			= KEY_LEFT,

		.gpio			= 106,

		.desc			= "left sw",

		.active_low		= 1,

		.debounce_interval	= 30,

	},

	[6] = {

		.code			= KEY_RIGHT,

		.gpio			= 107,

		.desc			= "right sw",

		.active_low		= 1,

		.debounce_interval	= 30,

	},

	[7] = {

		.code			= KEY_UP,

		.gpio			= 108,

		.desc			= "up sw",

		.active_low		= 1,

		.debounce_interval	= 30,

	},

	[8] = {

		.code			= KEY_DOWN,

		.gpio			= 109,

		.desc			= "down sw",

		.active_low		= 1,

		.debounce_interval	= 30,

	},

};



static struct gpio_keys_platform_data ldp_gpio_keys = {

	.buttons		= ldp_gpio_keys_buttons,

	.nbuttons		= ARRAY_SIZE(ldp_gpio_keys_buttons),

	.rep			= 1,

};



static struct platform_device ldp_gpio_keys_device = {

	.name		= "gpio-keys",

	.id		= -1,

	.dev		= {

		.platform_data	= &ldp_gpio_keys,

	},

};



static int ts_gpio;



/**

 * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq

 *

 * @return - void. If request gpio fails then Flag KERN_ERR.

 */

static void ads7846_dev_init(void)

{

	if (gpio_request(ts_gpio, "ads7846 irq") < 0) {

		printk(KERN_ERR "can't get ads746 pen down GPIO\n");

		return;

	}



	gpio_direction_input(ts_gpio);

	omap_set_gpio_debounce(ts_gpio, 1);

	omap_set_gpio_debounce_time(ts_gpio, 0xa);

}



static int ads7846_get_pendown_state(void)

{

	return !gpio_get_value(ts_gpio);

}



static struct ads7846_platform_data tsc2046_config __initdata = {

	.get_pendown_state	= ads7846_get_pendown_state,

	.keep_vref_on		= 1,

};



static struct omap2_mcspi_device_config tsc2046_mcspi_config = {

	.turbo_mode	= 0,

	.single_channel	= 1,	/* 0: slave, 1: master */

};



static struct spi_board_info ldp_spi_board_info[] __initdata = {

	[0] = {

		/*

		 * TSC2046 operates at a max freqency of 2MHz, so

		 * operate slightly below at 1.5MHz

		 */

		.modalias		= "ads7846",

		.bus_num		= 1,

		.chip_select		= 0,

		.max_speed_hz		= 1500000,

		.controller_data	= &tsc2046_mcspi_config,

		.irq			= 0,

		.platform_data		= &tsc2046_config,

	},

};



static inline void __init ldp_init_smsc911x(void)

{

	int eth_cs;
@@ -132,18 +294,49 @@ static struct omap_board_config_kernel ldp_config[] __initdata = { 
	{ OMAP_TAG_LCD,		&ldp_lcd_config },

};



static struct twl4030_usb_data ldp_usb_data = {

	.usb_mode	= T2_USB_MODE_ULPI,

};



static struct twl4030_gpio_platform_data ldp_gpio_data = {

	.gpio_base	= OMAP_MAX_GPIO_LINES,

	.irq_base	= TWL4030_GPIO_IRQ_BASE,

	.irq_end	= TWL4030_GPIO_IRQ_END,

};



static struct twl4030_madc_platform_data ldp_madc_data = {

	.irq_line	= 1,

};



static struct regulator_consumer_supply ldp_vmmc1_supply = {

	.supply			= "vmmc",

};



/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */

static struct regulator_init_data ldp_vmmc1 = {

	.constraints = {

		.min_uV			= 1850000,

		.max_uV			= 3150000,

		.valid_modes_mask	= REGULATOR_MODE_NORMAL

					| REGULATOR_MODE_STANDBY,

		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE

					| REGULATOR_CHANGE_MODE

					| REGULATOR_CHANGE_STATUS,

	},

	.num_consumer_supplies	= 1,

	.consumer_supplies	= &ldp_vmmc1_supply,

};



static struct twl4030_platform_data ldp_twldata = {

	.irq_base	= TWL4030_IRQ_BASE,

	.irq_end	= TWL4030_IRQ_END,



	/* platform_data for children goes here */

	.madc		= &ldp_madc_data,

	.usb		= &ldp_usb_data,

	.vmmc1		= &ldp_vmmc1,

	.gpio		= &ldp_gpio_data,

	.keypad		= &ldp_kp_twl4030_data,

};



static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
@@ -177,6 +370,7 @@ static struct twl4030_hsmmc_info mmc[] __initdata = { 
static struct platform_device *ldp_devices[] __initdata = {

	&ldp_smsc911x_device,

	&ldp_lcd_device,

	&ldp_gpio_keys_device,

};



static void __init omap_ldp_init(void)
@@ -185,9 +379,17 @@ static void __init omap_ldp_init(void) 
	platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));

	omap_board_config = ldp_config;

	omap_board_config_size = ARRAY_SIZE(ldp_config);

	ts_gpio = 54;

	ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);

	spi_register_board_info(ldp_spi_board_info,

				ARRAY_SIZE(ldp_spi_board_info));

	ads7846_dev_init();

	omap_serial_init();

	twl4030_mmc_init(mmc);

	usb_musb_init();



	twl4030_mmc_init(mmc);

	/* link regulators to MMC adapters */

	ldp_vmmc1_supply.dev = mmc[0].dev;

}



static void __init omap_ldp_map_io(void)

arch/arm/plat-omap/include/mach/keypad.h

+4 −0
Original line number Diff line number Diff line
@@ -33,7 +33,11 @@ struct omap_kp_platform_data { 
#define GROUP_3		(3 << 16)

#define GROUP_MASK	GROUP_3



#define KEY_PERSISTENT		0x00800000

#define KEYNUM_MASK		0x00EFFFFF

#define KEY(col, row, val) (((col) << 28) | ((row) << 24) | (val))

#define PERSISTENT_KEY(col, row) (((col) << 28) | ((row) << 24) | \

						KEY_PERSISTENT)



#endif