TCA8418 with OMAPl138

Hi Aditya,

What is your kernel version and SDK details ?

If you want to interface matrix driver and then you have to enable matrix driver support and need to change board file for platform data.

Please refer to the following link.

http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/369278.aspx

Hello Sir,

Thank you very much for your time. Below is my board file after editing- (changes are in Red). Also I have attached my kepad diagram.

/*
 * TI DA850/OMAP-L138 EVM board
 *
 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
 *
 * Derived from: arch/arm/mach-davinci/board-da830-evm.c
 * Original Copyrights follow:
 *
 * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
 * the terms of the GNU General Public License version 2. This program
 * is licensed "as is" without any warranty of any kind, whether express
 * or implied.
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/i2c/pca953x.h>
#include <linux/input.h>
#include <linux/mfd/tps6507x.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/tps6507x.h>
#include <linux/input/tps6507x-ts.h>
#include <linux/input/matrix_keypad.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/delay.h>
#include <linux/i2c-gpio.h>
#include <linux/pwm_backlight.h>
#include <linux/wl12xx.h>
#include <linux/tca8418_keypad.h>


#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/cp_intc.h>
#include <mach/da8xx.h>
#include <mach/nand.h>
#include <mach/mux.h>
#include <mach/aemif.h>
#include <mach/spi.h>
#include <mach/flash.h>
#include <mach/usb.h>
#include <mach/vpif.h>
#include <media/davinci/videohd.h>

#include <media/tvp514x.h>

#define DA850_EVM_PHY_ID		"0:00"
#define DA850_LCD_PWR_PIN		GPIO_TO_PIN(2, 8)
#define DA850_LCD_BL_PIN		GPIO_TO_PIN(2, 15)

#define DA850_MMCSD_CD_PIN		GPIO_TO_PIN(4, 0)
#define DA850_MMCSD_WP_PIN		GPIO_TO_PIN(4, 1)

#define DA850_MII_MDIO_CLKEN_PIN	GPIO_TO_PIN(2, 6)

#define DA850_SD_ENABLE_PIN		GPIO_TO_PIN(0, 11)

#define DA850_WLAN_EN			GPIO_TO_PIN(6, 9)
#define DA850_WLAN_IRQ			GPIO_TO_PIN(6, 10)

#define DAVINCI_BACKLIGHT_MAX_BRIGHTNESS	250
#define DAVINVI_BACKLIGHT_DEFAULT_BRIGHTNESS	250
#define DAVINCI_PWM_PERIOD_NANO_SECONDS		(10000 * 10)

#define PWM_DEVICE_ID	"ehrpwm.1"


/* Enabling GPIO for WL1271's Bluetooth */
#define WL1271_BT_EN_GPIO GPIO_TO_PIN(0, 15)

/* Enabling GPIOs for WL1271's BT, FM, GPS respectively (-1 if not used) */
static int gpios[] = { WL1271_BT_EN_GPIO, -1, -1};

static struct platform_device wl1271_device = {
       .name           = "kim",
       .id             = -1,
       .dev.platform_data = &gpios,
};


static struct platform_pwm_backlight_data da850evm_backlight_data = {
	.pwm_id		= PWM_DEVICE_ID,
	.ch		= 0,
	.max_brightness	= DAVINCI_BACKLIGHT_MAX_BRIGHTNESS,
	.dft_brightness	= DAVINVI_BACKLIGHT_DEFAULT_BRIGHTNESS,
	.pwm_period_ns	= DAVINCI_PWM_PERIOD_NANO_SECONDS,
};

static struct platform_device da850evm_backlight = {
	.name		= "pwm-backlight",
	.id		= -1,
	.dev		= {
		.platform_data	= &da850evm_backlight_data,
	}
};

static struct davinci_spi_platform_data da850evm_spi1_pdata = {
	.version	= SPI_VERSION_2,
	.num_chipselect = 1,
	.intr_line      = 1,
};

static struct mtd_partition da850evm_spiflash_part[] = {
	[0] = {
		.name = "UBL",
		.offset = 0,
		.size = SZ_64K,
		.mask_flags = MTD_WRITEABLE,
	},
	[1] = {
		.name = "U-Boot",
		.offset = MTDPART_OFS_APPEND,
		.size = SZ_512K,
		.mask_flags = MTD_WRITEABLE,
	},
	[2] = {
		.name = "U-Boot-Env",
		.offset = MTDPART_OFS_APPEND,
		.size = SZ_64K,
		.mask_flags = MTD_WRITEABLE,
	},
	[3] = {
		.name = "Kernel",
		.offset = MTDPART_OFS_APPEND,
		.size = SZ_2M + SZ_512K,
		.mask_flags = 0,
	},
	[4] = {
		.name = "Filesystem",
		.offset = MTDPART_OFS_APPEND,
		.size = SZ_4M,
		.mask_flags = 0,
	},
	[5] = {
		.name = "MAC-Address",
		.offset = SZ_8M - SZ_64K,
		.size = SZ_64K,
		.mask_flags = MTD_WRITEABLE,
	},
};

static struct flash_platform_data da850evm_spiflash_data = {
	.name		= "m25p80",
	.parts		= da850evm_spiflash_part,
	.nr_parts	= ARRAY_SIZE(da850evm_spiflash_part),
};

static struct davinci_spi_config da850evm_spiflash_cfg = {
	.io_type	= SPI_IO_TYPE_DMA,
	.c2tdelay	= 8,
	.t2cdelay	= 8,
};

static struct spi_board_info da850evm_spi_info[] = {
	{
		.modalias		= "m25p80",
		.platform_data		= &da850evm_spiflash_data,
		.controller_data	= &da850evm_spiflash_cfg,
		.mode			= SPI_MODE_0,
		.max_speed_hz		= 30000000,
		.bus_num		= 1,
		.chip_select		= 0,
	},
};

static void m25p80_notify_add(struct mtd_info *mtd)
{
	char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
	size_t retlen;

	if (!strcmp(mtd->name, "MAC-Address")) {
		mtd->read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
		if (retlen == ETH_ALEN)
			pr_info("Read MAC addr from SPI Flash: %pM\n",
					mac_addr);
	}
}

static struct mtd_notifier spi_notifier = {
	.add    = m25p80_notify_add,
};

static void __init da850evm_init_spi1(struct spi_board_info *info, unsigned len)
{
	int ret;

	ret = spi_register_board_info(info, len);
	if (ret)
		pr_warning("failed to register board info : %d\n", ret);

	ret = da8xx_register_spi(1, &da850evm_spi1_pdata);
	if (ret)
		pr_warning("failed to register spi 1 device : %d\n", ret);

	if (!(system_rev & 0x100))
		register_mtd_user(&spi_notifier);
}

#define TVP5147_CH0		"tvp514x-0"
#define TVP5147_CH1		"tvp514x-1"

#define VPIF_STATUS	(0x002C)
#define VPIF_STATUS_CLR	(0x0030)

static struct mtd_partition da850_evm_norflash_partition[] = {
	{
		.name           = "bootloaders + env",
		.offset         = 0,
		.size           = SZ_512K,
		.mask_flags     = MTD_WRITEABLE,
	},
	{
		.name           = "kernel",
		.offset         = MTDPART_OFS_APPEND,
		.size           = SZ_2M,
		.mask_flags     = 0,
	},
	{
		.name           = "filesystem",
		.offset         = MTDPART_OFS_APPEND,
		.size           = MTDPART_SIZ_FULL,
		.mask_flags     = 0,
	},
};

static struct davinci_aemif_timing da850_evm_norflash_timing = {
	.wsetup		= 10,
	.wstrobe	= 60,
	.whold		= 10,
	.rsetup		= 10,
	.rstrobe	= 110,
	.rhold		= 10,
	.ta		= 30,
};

static struct davinciflash_pdata da850_evm_norflash_data = {
	.width		= 2,
	.parts		= da850_evm_norflash_partition,
	.nr_parts	= ARRAY_SIZE(da850_evm_norflash_partition),
	.timing		= &da850_evm_norflash_timing,
};

static struct resource da850_evm_norflash_resource[] = {
	{
		.start	= DA8XX_AEMIF_CS2_BASE,
		.end	= DA8XX_AEMIF_CS2_BASE + SZ_32M - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= DA8XX_AEMIF_CTL_BASE,
		.end	= DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
		.flags	= IORESOURCE_MEM,
	},
};

static struct platform_device da850_evm_norflash_device = {
	.name		= "davinci-flash",
	.id		= 0,
	.dev		= {
		.platform_data  = &da850_evm_norflash_data,
	},
	.num_resources	= ARRAY_SIZE(da850_evm_norflash_resource),
	.resource	= da850_evm_norflash_resource,
};

static struct davinci_pm_config da850_pm_pdata = {
	.sleepcount = 128,
};

static struct platform_device da850_pm_device = {
	.name           = "pm-davinci",
	.dev = {
		.platform_data	= &da850_pm_pdata,
	},
	.id             = -1,
};

/* DA850/OMAP-L138 EVM includes a 512 MByte large-page NAND flash
 * (128K blocks). It may be used instead of the (default) SPI flash
 * to boot, using TI's tools to install the secondary boot loader
 * (UBL) and U-Boot.
 */
static struct mtd_partition da850_evm_nandflash_partition[] = {
	{
		.name		= "u-boot env",
		.offset		= 0,
		.size		= SZ_128K,
		.mask_flags	= MTD_WRITEABLE,
	 },
	{
		.name		= "UBL",
		.offset		= MTDPART_OFS_APPEND,
		.size		= SZ_128K,
		.mask_flags	= MTD_WRITEABLE,
	},
	{
		.name		= "u-boot",
		.offset		= MTDPART_OFS_APPEND,
		.size		= 4 * SZ_128K,
		.mask_flags	= MTD_WRITEABLE,
	},
	{
		.name		= "kernel",
		.offset		= 0x200000,
		.size		= SZ_4M,
		.mask_flags	= 0,
	},
	{
		.name		= "filesystem",
		.offset		= MTDPART_OFS_APPEND,
		.size		= MTDPART_SIZ_FULL,
		.mask_flags	= 0,
	},
};

static struct davinci_aemif_timing da850_evm_nandflash_timing = {
	.wsetup		= 24,
	.wstrobe	= 21,
	.whold		= 14,
	.rsetup		= 19,
	.rstrobe	= 50,
	.rhold		= 0,
	.ta		= 20,
};

static struct davinci_nand_pdata da850_evm_nandflash_data = {
	.parts		= da850_evm_nandflash_partition,
	.nr_parts	= ARRAY_SIZE(da850_evm_nandflash_partition),
	.ecc_mode	= NAND_ECC_HW,
	.ecc_bits	= 4,
	.options	= NAND_USE_FLASH_BBT,
	.timing		= &da850_evm_nandflash_timing,
};

static struct resource da850_evm_nandflash_resource[] = {
	{
		.start	= DA8XX_AEMIF_CS3_BASE,
		.end	= DA8XX_AEMIF_CS3_BASE + SZ_512K + 2 * SZ_1K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= DA8XX_AEMIF_CTL_BASE,
		.end	= DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
		.flags	= IORESOURCE_MEM,
	},
};

static struct platform_device da850_evm_nandflash_device = {
	.name		= "davinci_nand",
	.id		= 1,
	.dev		= {
		.platform_data	= &da850_evm_nandflash_data,
	},
	.num_resources	= ARRAY_SIZE(da850_evm_nandflash_resource),
	.resource	= da850_evm_nandflash_resource,
};

static struct platform_device *da850_evm_devices[] __initdata = {
	&da850_evm_nandflash_device,
	&da850_evm_norflash_device,
};

static const short da850_evm_nand_pins[] = {
	DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
	DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
	DA850_EMA_A_1, DA850_EMA_A_2, DA850_NEMA_CS_3, DA850_NEMA_CS_4,
	DA850_NEMA_WE, DA850_NEMA_OE,
	-1
};

static const short da850_evm_nor_pins[] = {
	DA850_EMA_BA_1, DA850_EMA_CLK, DA850_EMA_WAIT_1, DA850_NEMA_CS_2,
	DA850_NEMA_WE, DA850_NEMA_OE, DA850_EMA_D_0, DA850_EMA_D_1,
	DA850_EMA_D_2, DA850_EMA_D_3, DA850_EMA_D_4, DA850_EMA_D_5,
	DA850_EMA_D_6, DA850_EMA_D_7, DA850_EMA_D_8, DA850_EMA_D_9,
	DA850_EMA_D_10, DA850_EMA_D_11, DA850_EMA_D_12, DA850_EMA_D_13,
	DA850_EMA_D_14, DA850_EMA_D_15, DA850_EMA_A_0, DA850_EMA_A_1,
	DA850_EMA_A_2, DA850_EMA_A_3, DA850_EMA_A_4, DA850_EMA_A_5,
	DA850_EMA_A_6, DA850_EMA_A_7, DA850_EMA_A_8, DA850_EMA_A_9,
	DA850_EMA_A_10, DA850_EMA_A_11, DA850_EMA_A_12, DA850_EMA_A_13,
	DA850_EMA_A_14, DA850_EMA_A_15, DA850_EMA_A_16, DA850_EMA_A_17,
	DA850_EMA_A_18, DA850_EMA_A_19, DA850_EMA_A_20, DA850_EMA_A_21,
	DA850_EMA_A_22, DA850_EMA_A_23,
	-1
};

static u32 ui_card_detected;

#if defined(CONFIG_MMC_DAVINCI) || \
    defined(CONFIG_MMC_DAVINCI_MODULE)
#define HAS_MMC 1
#else
#define HAS_MMC 0
#endif

/* have_imager() - Check if we have support for imager interface */
static inline int have_imager(void)
{
#if defined(CONFIG_DA850_UI_CAMERA)
	return 1;
#else
	return 0;
#endif
}

static inline void da850_evm_setup_nor_nand(void)
{
	int ret = 0;

	if (ui_card_detected && !HAS_MMC) {
		ret = davinci_cfg_reg_list(da850_evm_nand_pins);
		if (ret)
			pr_warning("da850_evm_init: nand mux setup failed: "
					"%d\n", ret);

		ret = davinci_cfg_reg(DA850_GPIO0_11);
		if (ret)
			pr_warning("da850_evm_init:GPIO(0,11) mux setup "
					"failed\n");

		ret = gpio_request(DA850_SD_ENABLE_PIN, "mmc_sd_en");
		if (ret)
			pr_warning("Cannot open GPIO %d\n",
					DA850_SD_ENABLE_PIN);

		/* Driver GP0[11] low for NOR to work */
		gpio_direction_output(DA850_SD_ENABLE_PIN, 0);

		ret = davinci_cfg_reg_list(da850_evm_nor_pins);
		if (ret)
			pr_warning("da850_evm_init: nor mux setup failed: %d\n",
				ret);

		platform_add_devices(da850_evm_devices,
					ARRAY_SIZE(da850_evm_devices));
	} else if (ui_card_detected && HAS_MMC) {
		/*
		 * On Logic PD Rev.3 EVMs GP0[11] pin needs to be configured
		 * for MMC and NOR to work. When GP0[11] is low, the SD0
		 * interface will not work, but NOR flash will. When GP0[11]
		 * is high, SD0 will work but NOR flash will not. By default
		 * we are assuming that GP0[11] pin is driven high, when UI
		 * card is not connected. Hence we are not configuring the
		 * GP0[11] pin when MMC/SD is enabled and UI card is not
		 * connected. Not configuring the GPIO pin will enable the
		 * bluetooth to work on AM18x as it requires the GP0[11]
		 * pin for UART flow control.
		 */
		ret = davinci_cfg_reg(DA850_GPIO0_11);
		if (ret)
			pr_warning("da850_evm_init:GPIO(0,11) mux setup "
					"failed\n");

		ret = gpio_request(DA850_SD_ENABLE_PIN, "mmc_sd_en");
		if (ret)
			pr_warning("Cannot open GPIO %d\n",
					DA850_SD_ENABLE_PIN);

		/* Driver GP0[11] high for SD to work */
		gpio_direction_output(DA850_SD_ENABLE_PIN, 1);
	}
}

#ifdef CONFIG_DA850_UI_RMII
static inline void da850_evm_setup_emac_rmii(int rmii_sel)
{
	struct davinci_soc_info *soc_info = &davinci_soc_info;

	soc_info->emac_pdata->rmii_en = 1;
	gpio_set_value_cansleep(rmii_sel, 0);
}
#else
static inline void da850_evm_setup_emac_rmii(int rmii_sel) { }
#endif


#define DA850_KEYS_DEBOUNCE_MS	10
/*
 * At 200ms polling interval it is possible to miss an
 * event by tapping very lightly on the push button but most
 * pushes do result in an event; longer intervals require the
 * user to hold the button whereas shorter intervals require
 * more CPU time for polling.
 */
#define DA850_GPIO_KEYS_POLL_MS	200

enum da850_evm_ui_exp_pins {
	DA850_EVM_UI_EXP_SEL_C = 5,
	DA850_EVM_UI_EXP_SEL_B,
	DA850_EVM_UI_EXP_SEL_A,
	DA850_EVM_UI_EXP_PB8,
	DA850_EVM_UI_EXP_PB7,
	DA850_EVM_UI_EXP_PB6,
	DA850_EVM_UI_EXP_PB5,
	DA850_EVM_UI_EXP_PB4,
	DA850_EVM_UI_EXP_PB3,
	DA850_EVM_UI_EXP_PB2,
	DA850_EVM_UI_EXP_PB1,
};

static const char const *da850_evm_ui_exp[] = {
	[DA850_EVM_UI_EXP_SEL_C]        = "sel_c",
	[DA850_EVM_UI_EXP_SEL_B]        = "sel_b",
	[DA850_EVM_UI_EXP_SEL_A]        = "sel_a",
	[DA850_EVM_UI_EXP_PB8]          = "pb8",
	[DA850_EVM_UI_EXP_PB7]          = "pb7",
	[DA850_EVM_UI_EXP_PB6]          = "pb6",
	[DA850_EVM_UI_EXP_PB5]          = "pb5",
	[DA850_EVM_UI_EXP_PB4]          = "pb4",
	[DA850_EVM_UI_EXP_PB3]          = "pb3",
	[DA850_EVM_UI_EXP_PB2]          = "pb2",
	[DA850_EVM_UI_EXP_PB1]          = "pb1",
};

#define DA850_N_UI_PB		8

static struct gpio_keys_button da850_evm_ui_keys[] = {
	[0 ... DA850_N_UI_PB - 1] = {
		.type			= EV_KEY,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
		.code			= -1, /* assigned at runtime */
		.gpio			= -1, /* assigned at runtime */
		.desc			= NULL, /* assigned at runtime */
	},
};

static struct gpio_keys_platform_data da850_evm_ui_keys_pdata = {
	.buttons = da850_evm_ui_keys,
	.nbuttons = ARRAY_SIZE(da850_evm_ui_keys),
	.poll_interval = DA850_GPIO_KEYS_POLL_MS,
};

static struct platform_device da850_evm_ui_keys_device = {
	.name = "gpio-keys-polled",
	.id = 0,
	.dev = {
		.platform_data = &da850_evm_ui_keys_pdata
	},
};

static void da850_evm_ui_keys_init(unsigned gpio)
{
	int i;
	struct gpio_keys_button *button;

	for (i = 0; i < DA850_N_UI_PB; i++) {
		button = &da850_evm_ui_keys[i];
		button->code = KEY_F8 - i;
		button->desc = (char *)
				da850_evm_ui_exp[DA850_EVM_UI_EXP_PB8 + i];
		button->gpio = gpio + DA850_EVM_UI_EXP_PB8 + i;
	}
}

#ifdef CONFIG_DA850_UI_CLCD
static inline void da850_evm_setup_char_lcd(int a, int b, int c)
{
	gpio_set_value_cansleep(a, 0);
	gpio_set_value_cansleep(b, 0);
	gpio_set_value_cansleep(c, 0);
}
#else
static inline void da850_evm_setup_char_lcd(int a, int b, int c) { }
#endif

static struct at24_platform_data da850_evm_i2c_eeprom_info = {
	.byte_len	= SZ_256K / 8,
	.page_size	= 64,
	.flags		= AT24_FLAG_ADDR16,
	.setup		= davinci_get_mac_addr,
	.context	= (void *)0x7f00,
};

#ifdef CONFIG_DA850_UI_SD_VIDEO_PORT
static inline void da850_evm_setup_video_port(int video_sel)
{
	gpio_set_value_cansleep(video_sel, 0);
}
#else
static inline void da850_evm_setup_video_port(int video_sel) { }
#endif

#ifdef CONFIG_DA850_UI_CAMERA
static inline void da850_evm_setup_camera(int camera_sel)
{
	gpio_set_value_cansleep(camera_sel, 0);
}
#else
static inline void da850_evm_setup_camera(int camera_sel) { }
#endif

static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
						unsigned ngpio, void *c)
{
	int sel_a, sel_b, sel_c, ret;

	sel_a = gpio + DA850_EVM_UI_EXP_SEL_A;
	sel_b = gpio + DA850_EVM_UI_EXP_SEL_B;
	sel_c = gpio + DA850_EVM_UI_EXP_SEL_C;

	ret = gpio_request(sel_a, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_A]);
	if (ret) {
		pr_warning("Cannot open UI expander pin %d\n", sel_a);
		goto exp_setup_sela_fail;
	}

	ret = gpio_request(sel_b, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_B]);
	if (ret) {
		pr_warning("Cannot open UI expander pin %d\n", sel_b);
		goto exp_setup_selb_fail;
	}

	ret = gpio_request(sel_c, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_C]);
	if (ret) {
		pr_warning("Cannot open UI expander pin %d\n", sel_c);
		goto exp_setup_selc_fail;
	}

	/* deselect all functionalities */
	gpio_direction_output(sel_a, 1);
	gpio_direction_output(sel_b, 1);
	gpio_direction_output(sel_c, 1);

	da850_evm_ui_keys_init(gpio);
	ret = platform_device_register(&da850_evm_ui_keys_device);
	if (ret) {
		pr_warning("Could not register UI GPIO expander push-buttons");
		goto exp_setup_keys_fail;
	}

	ui_card_detected = 1;
	pr_info("DA850/OMAP-L138 EVM UI card detected\n");

	da850_evm_setup_nor_nand();

	da850_evm_setup_emac_rmii(sel_a);

	da850_evm_setup_char_lcd(sel_a, sel_b, sel_c);

	da850_evm_setup_video_port(sel_c);

	da850_evm_setup_camera(sel_b);

	return 0;

exp_setup_keys_fail:
	gpio_free(sel_c);
exp_setup_selc_fail:
	gpio_free(sel_b);
exp_setup_selb_fail:
	gpio_free(sel_a);
exp_setup_sela_fail:
	return ret;
}

static int da850_evm_ui_expander_teardown(struct i2c_client *client,
					unsigned gpio, unsigned ngpio, void *c)
{
	platform_device_unregister(&da850_evm_ui_keys_device);

	/* deselect all functionalities */
	gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_C, 1);
	gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_B, 1);
	gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_A, 1);

	gpio_free(gpio + DA850_EVM_UI_EXP_SEL_C);
	gpio_free(gpio + DA850_EVM_UI_EXP_SEL_B);
	gpio_free(gpio + DA850_EVM_UI_EXP_SEL_A);

	return 0;
}

/* assign the baseboard expander's GPIOs after the UI board's */
#define DA850_UI_EXPANDER_N_GPIOS ARRAY_SIZE(da850_evm_ui_exp)
#define DA850_BB_EXPANDER_GPIO_BASE (DAVINCI_N_GPIO + DA850_UI_EXPANDER_N_GPIOS)

enum da850_evm_bb_exp_pins {
	DA850_EVM_BB_EXP_DEEP_SLEEP_EN = 0,
	DA850_EVM_BB_EXP_SW_RST,
	DA850_EVM_BB_EXP_TP_23,
	DA850_EVM_BB_EXP_TP_22,
	DA850_EVM_BB_EXP_TP_21,
	DA850_EVM_BB_EXP_USER_PB1,
	DA850_EVM_BB_EXP_USER_LED2,
	DA850_EVM_BB_EXP_USER_LED1,
	DA850_EVM_BB_EXP_USER_SW1,
	DA850_EVM_BB_EXP_USER_SW2,
	DA850_EVM_BB_EXP_USER_SW3,
	DA850_EVM_BB_EXP_USER_SW4,
	DA850_EVM_BB_EXP_USER_SW5,
	DA850_EVM_BB_EXP_USER_SW6,
	DA850_EVM_BB_EXP_USER_SW7,
	DA850_EVM_BB_EXP_USER_SW8
};

static const char const *da850_evm_bb_exp[] = {
	[DA850_EVM_BB_EXP_DEEP_SLEEP_EN]	= "deep_sleep_en",
	[DA850_EVM_BB_EXP_SW_RST]		= "sw_rst",
	[DA850_EVM_BB_EXP_TP_23]		= "tp_23",
	[DA850_EVM_BB_EXP_TP_22]		= "tp_22",
	[DA850_EVM_BB_EXP_TP_21]		= "tp_21",
	[DA850_EVM_BB_EXP_USER_PB1]		= "user_pb1",
	[DA850_EVM_BB_EXP_USER_LED2]		= "user_led2",
	[DA850_EVM_BB_EXP_USER_LED1]		= "user_led1",
	[DA850_EVM_BB_EXP_USER_SW1]		= "user_sw1",
	[DA850_EVM_BB_EXP_USER_SW2]		= "user_sw2",
	[DA850_EVM_BB_EXP_USER_SW3]		= "user_sw3",
	[DA850_EVM_BB_EXP_USER_SW4]		= "user_sw4",
	[DA850_EVM_BB_EXP_USER_SW5]		= "user_sw5",
	[DA850_EVM_BB_EXP_USER_SW6]		= "user_sw6",
	[DA850_EVM_BB_EXP_USER_SW7]		= "user_sw7",
	[DA850_EVM_BB_EXP_USER_SW8]		= "user_sw8",
};

static const uint32_t tca8418_km_data[] = {
    KEY(0, 0, KEY_LEFT),
    KEY(0, 1, KEY_DOWN),
    KEY(0, 2, KEY_ENTER),
    KEY(0, 3, KEY_M),

    KEY(1, 0, KEY_RIGHT),
    KEY(1, 1, KEY_UP),
    KEY(1, 2, KEY_I),
    KEY(1, 3, KEY_N),

    KEY(2, 0, KEY_A),
    KEY(2, 1, KEY_E),
    KEY(2, 2, KEY_J),
    KEY(2, 3, KEY_O),

    KEY(3, 0, KEY_B),
    KEY(3, 1, KEY_F),
    KEY(3, 2, KEY_K),
    KEY(3, 3, KEY_P)
};

#define DA850_N_BB_USER_SW	8

static struct gpio_keys_button da850_evm_bb_keys[] = {
	[0] = {
		.type			= EV_KEY,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
		.code			= KEY_PROG1,
		.desc			= NULL, /* assigned at runtime */
		.gpio			= -1, /* assigned at runtime */
	},
	[1 ... DA850_N_BB_USER_SW] = {
		.type			= EV_SW,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
		.code			= -1, /* assigned at runtime */
		.desc			= NULL, /* assigned at runtime */
		.gpio			= -1, /* assigned at runtime */
	},
};

static struct gpio_keys_platform_data da850_evm_bb_keys_pdata = {
	.buttons = da850_evm_bb_keys,
	.nbuttons = ARRAY_SIZE(da850_evm_bb_keys),
	.poll_interval = DA850_GPIO_KEYS_POLL_MS,
};

static struct platform_device da850_evm_bb_keys_device = {
	.name = "gpio-keys-polled",
	.id = 1,
	.dev = {
		.platform_data = &da850_evm_bb_keys_pdata
	},
};

static void da850_evm_bb_keys_init(unsigned gpio)
{
	int i;
	struct gpio_keys_button *button;

	button = &da850_evm_bb_keys[0];
	button->desc = (char *)
		da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_PB1];
	button->gpio = gpio + DA850_EVM_BB_EXP_USER_PB1;

	for (i = 0; i < DA850_N_BB_USER_SW; i++) {
		button = &da850_evm_bb_keys[i + 1];
		button->code = SW_LID + i;
		button->desc = (char *)
				da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_SW1 + i];
		button->gpio = gpio + DA850_EVM_BB_EXP_USER_SW1 + i;
	}
}

#define DA850_N_BB_USER_LED	2

static struct gpio_led da850_evm_bb_leds[] = {
	[0 ... DA850_N_BB_USER_LED - 1] = {
		.active_low = 1,
		.gpio = -1, /* assigned at runtime */
		.name = NULL, /* assigned at runtime */
	},
};

static struct gpio_led_platform_data da850_evm_bb_leds_pdata = {
	.leds = da850_evm_bb_leds,
	.num_leds = ARRAY_SIZE(da850_evm_bb_leds),
};

static struct platform_device da850_evm_bb_leds_device = {
	.name		= "leds-gpio",
	.id		= -1,
	.dev = {
		.platform_data = &da850_evm_bb_leds_pdata
	}
};

static void da850_evm_bb_leds_init(unsigned gpio)
{
	int i;
	struct gpio_led *led;

	for (i = 0; i < DA850_N_BB_USER_LED; i++) {
		led = &da850_evm_bb_leds[i];

		led->gpio = gpio + DA850_EVM_BB_EXP_USER_LED2 + i;
		led->name =
			da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_LED2 + i];
	}
}

static int da850_evm_bb_expander_setup(struct i2c_client *client,
						unsigned gpio, unsigned ngpio,
						void *c)
{
	int ret;

	/*
	 * Register the switches and pushbutton on the baseboard as a gpio-keys
	 * device.
	 */
	da850_evm_bb_keys_init(gpio);
	ret = platform_device_register(&da850_evm_bb_keys_device);
	if (ret) {
		pr_warning("Could not register baseboard GPIO expander keys");
		goto io_exp_setup_sw_fail;
	}

	da850_evm_bb_leds_init(gpio);
	ret = platform_device_register(&da850_evm_bb_leds_device);
	if (ret) {
		pr_warning("Could not register baseboard GPIO expander LEDS");
		goto io_exp_setup_leds_fail;
	}

	return 0;

io_exp_setup_leds_fail:
	platform_device_unregister(&da850_evm_bb_keys_device);
io_exp_setup_sw_fail:
	return ret;
}

static int da850_evm_bb_expander_teardown(struct i2c_client *client,
					unsigned gpio, unsigned ngpio, void *c)
{
	platform_device_unregister(&da850_evm_bb_leds_device);
	platform_device_unregister(&da850_evm_bb_keys_device);

	return 0;
}

static struct pca953x_platform_data da850_evm_ui_expander_info = {
	.gpio_base	= DAVINCI_N_GPIO,
	.setup		= da850_evm_ui_expander_setup,
	.teardown	= da850_evm_ui_expander_teardown,
	.names		= da850_evm_ui_exp,
};

static struct pca953x_platform_data da850_evm_bb_expander_info = {
	.gpio_base	= DA850_BB_EXPANDER_GPIO_BASE,
	.setup		= da850_evm_bb_expander_setup,
	.teardown	= da850_evm_bb_expander_teardown,
	.names		= da850_evm_bb_exp,
};

static const struct matrix_keymap_data tca8418_mkdata = {
    .keymap            = tca8418_km_data,
    .keymap_size       = ARRAY_SIZE(tca8418_km_data),
};

static struct tca8418_keypad_platform_data tca8418_pdata = {
    .keymap_data = &tca8418_mkdata,
    .rows = 4,
    .cols = 4,
    .rep = 1,         /* Just a guess */
    .irq_is_gpio = 1, /* Just a guess */
};


/*
 * USB1 VBUS is controlled by GPIO2[4], over-current is reported on GPIO6[13].
 */
#define ON_BD_USB_DRV	GPIO_TO_PIN(2, 4)
#define ON_BD_USB_OVC	GPIO_TO_PIN(6, 13)

static const short da850_evm_usb11_pins[] = {
	DA850_GPIO2_4, DA850_GPIO6_13,
	-1
};

static da8xx_ocic_handler_t da850_evm_usb_ocic_handler;

static int da850_evm_usb_set_power(unsigned port, int on)
{
	gpio_set_value(ON_BD_USB_DRV, on);
	return 0;
}

static int da850_evm_usb_get_power(unsigned port)
{
	return gpio_get_value(ON_BD_USB_DRV);
}

static int da850_evm_usb_get_oci(unsigned port)
{
	return !gpio_get_value(ON_BD_USB_OVC);
}

static irqreturn_t da850_evm_usb_ocic_irq(int, void *);

static int da850_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
{
	int irq		= gpio_to_irq(ON_BD_USB_OVC);
	int error	= 0;

	if (handler != NULL) {
		da850_evm_usb_ocic_handler = handler;

		error = request_irq(irq, da850_evm_usb_ocic_irq, IRQF_DISABLED |
				    IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
				    "OHCI over-current indicator", NULL);
		if (error)
			printk(KERN_ERR "%s: could not request IRQ to watch "
			       "over-current indicator changes\n", __func__);
	} else
		free_irq(irq, NULL);

	return error;
}

static struct da8xx_ohci_root_hub da850_evm_usb11_pdata = {
	.set_power	= da850_evm_usb_set_power,
	.get_power	= da850_evm_usb_get_power,
	.get_oci	= da850_evm_usb_get_oci,
	.ocic_notify	= da850_evm_usb_ocic_notify,

	/* TPS2065 switch @ 5V */
	.potpgt		= (3 + 1) / 2,	/* 3 ms max */
};

static irqreturn_t da850_evm_usb_ocic_irq(int irq, void *dev_id)
{
	da850_evm_usb_ocic_handler(&da850_evm_usb11_pdata, 1);
	return IRQ_HANDLED;
}

static __init void da850_evm_usb_init(void)
{
	u32 cfgchip2;
	int ret;

	/*
	 * Set up USB clock/mode in the CFGCHIP2 register.
	 * FYI:  CFGCHIP2 is 0x0000ef00 initially.
	 */
	cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));

	/* USB2.0 PHY reference clock is 24 MHz */
	cfgchip2 &= ~CFGCHIP2_REFFREQ;
	cfgchip2 |=  CFGCHIP2_REFFREQ_24MHZ;

	/*
	 * Select internal reference clock for USB 2.0 PHY
	 * and use it as a clock source for USB 1.1 PHY
	 * (this is the default setting anyway).
	 */
	cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
	cfgchip2 |=  CFGCHIP2_USB2PHYCLKMUX;

	/*
	 * We have to override VBUS/ID signals when MUSB is configured into the
	 * host-only mode -- ID pin will float if no cable is connected, so the
	 * controller won't be able to drive VBUS thinking that it's a B-device.
	 * Otherwise, we want to use the OTG mode and enable VBUS comparators.
	 */
	cfgchip2 &= ~CFGCHIP2_OTGMODE;
#ifdef	CONFIG_USB_MUSB_HOST
	cfgchip2 |=  CFGCHIP2_FORCE_HOST;
#else
	cfgchip2 |=  CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN;
#endif

	__raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));

	/*
	 * TPS2065 switch @ 5V supplies 1 A (sustains 1.5 A),
	 * with the power on to power good time of 3 ms.
	 */
	ret = da8xx_register_usb20(1000, 3);
	if (ret)
		pr_warning("%s: USB 2.0 registration failed: %d\n",
			   __func__, ret);

	ret = davinci_cfg_reg_list(da850_evm_usb11_pins);
	if (ret) {
		pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
			   __func__, ret);
		return;
	}

	ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
	if (ret) {
		printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
		       "power control: %d\n", __func__, ret);
		return;
	}
	gpio_direction_output(ON_BD_USB_DRV, 0);

	ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
	if (ret) {
		printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
		       "over-current indicator: %d\n", __func__, ret);
		return;
	}
	gpio_direction_input(ON_BD_USB_OVC);

	ret = da8xx_register_usb11(&da850_evm_usb11_pdata);
	if (ret)
		pr_warning("%s: USB 1.1 registration failed: %d\n",
			   __func__, ret);
}

static struct davinci_uart_config da850_evm_uart_config __initdata = {
	.enabled_uarts = 0x7,
};

/* davinci da850 evm audio machine driver */
static u8 da850_iis_serializer_direction[] = {
	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	TX_MODE,
	RX_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
};

static struct snd_platform_data da850_evm_snd_data = {
	.tx_dma_offset	= 0x2000,
	.rx_dma_offset	= 0x2000,
	.op_mode	= DAVINCI_MCASP_IIS_MODE,
	.num_serializer	= ARRAY_SIZE(da850_iis_serializer_direction),
	.tdm_slots	= 2,
	.serial_dir	= da850_iis_serializer_direction,
	.asp_chan_q	= EVENTQ_0,
	.version	= MCASP_VERSION_2,
	.txnumevt	= 1,
	.rxnumevt	= 1,
};

static struct davinci_mcbsp_platform_data da850_mcbsp0_config = {
	.inst	= 0,
};

static struct davinci_mcbsp_platform_data da850_mcbsp1_config = {
	.inst	= 1,
};

static int da850_evm_mmc_get_ro(int index)
{
	return gpio_get_value(DA850_MMCSD_WP_PIN);
}

static int da850_evm_mmc_get_cd(int index)
{
	return !gpio_get_value(DA850_MMCSD_CD_PIN);
}

static int wl12xx_set_power(int slot, int power_on)
{
	static int power_state;

	pr_debug("Powering %s wifi", (power_on ? "on" : "off"));

	if (power_on == power_state)
		return 0;
	power_state = power_on;

	if (power_on) {
		gpio_set_value(DA850_WLAN_EN, 1);
		mdelay(15);
		gpio_set_value(DA850_WLAN_EN, 0);
		mdelay(1);
		gpio_set_value(DA850_WLAN_EN, 1);
		mdelay(70);
	} else {
		gpio_set_value(DA850_WLAN_EN, 0);
	}

	return 0;
}

static struct davinci_mmc_config da850_mmc_config[] = {
	{
		.get_ro		= da850_evm_mmc_get_ro,
		.get_cd		= da850_evm_mmc_get_cd,
		.wires		= 4,
		.max_freq	= 50000000,
		.caps		= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
		.version	= MMC_CTLR_VERSION_2,
	},
	{
		.get_ro		= NULL,
		.get_cd		= NULL,
		.set_power	= wl12xx_set_power,
		.wires		= 4,
		.max_freq	= 25000000,
		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_NONREMOVABLE |
				  MMC_CAP_POWER_OFF_CARD,
		.version	= MMC_CTLR_VERSION_2,
	},
	{}	/* Terminator */
};

static void da850_panel_power_ctrl(int val)
{
	/* lcd power */
	gpio_set_value(DA850_LCD_PWR_PIN, val);

	mdelay(200);

	/* lcd backlight */
	gpio_set_value(DA850_LCD_BL_PIN, val);
}

static int da850_lcd_hw_init(void)
{
	void __iomem *cfg_mstpri2_base;
	int status;
	u32 val;

	/*
	 * Reconfigure the LCDC priority to the highest to ensure that
	 * the throughput/latency requirements for the LCDC are met.
	 */
	cfg_mstpri2_base = DA8XX_SYSCFG0_VIRT(DA8XX_MSTPRI2_REG);

	val = __raw_readl(cfg_mstpri2_base);
	val &= 0x0fffffff;
	__raw_writel(val, cfg_mstpri2_base);

	status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n");
	if (status < 0)
		return status;

	status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n");
	if (status < 0) {
		gpio_free(DA850_LCD_BL_PIN);
		return status;
	}

	gpio_direction_output(DA850_LCD_BL_PIN, 0);
	gpio_direction_output(DA850_LCD_PWR_PIN, 0);

	return 0;
}

/* TPS65070 voltage regulator support */

/* 3.3V */
static struct regulator_consumer_supply tps65070_dcdc1_consumers[] = {
	{
		.supply = "usb0_vdda33",
	},
	{
		.supply = "usb1_vdda33",
	},
};

/* 3.3V or 1.8V */
static struct regulator_consumer_supply tps65070_dcdc2_consumers[] = {
	{
		.supply = "dvdd3318_a",
	},
	{
		.supply = "dvdd3318_b",
	},
	{
		.supply = "dvdd3318_c",
	},
};

/* 1.2V */
static struct regulator_consumer_supply tps65070_dcdc3_consumers[] = {
	{
		.supply = "cvdd",
	},
};

/* 1.8V LDO */
static struct regulator_consumer_supply tps65070_ldo1_consumers[] = {
	{
		.supply = "sata_vddr",
	},
	{
		.supply = "usb0_vdda18",
	},
	{
		.supply = "usb1_vdda18",
	},
	{
		.supply = "ddr_dvdd18",
	},
};

/* 1.2V LDO */
static struct regulator_consumer_supply tps65070_ldo2_consumers[] = {
	{
		.supply = "sata_vdd",
	},
	{
		.supply = "pll0_vdda",
	},
	{
		.supply = "pll1_vdda",
	},
	{
		.supply = "usbs_cvdd",
	},
	{
		.supply = "vddarnwa1",
	},
};

/* We take advantage of the fact that both defdcdc{2,3} are tied high */
static struct tps6507x_reg_platform_data tps6507x_platform_data = {
	.defdcdc_default = true,
};

static struct regulator_init_data tps65070_regulator_data[] = {
	/* dcdc1 */
	{
		.constraints = {
			.min_uV = 3150000,
			.max_uV = 3450000,
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc1_consumers),
		.consumer_supplies = tps65070_dcdc1_consumers,
	},

	/* dcdc2 */
	{
		.constraints = {
			.min_uV = 1710000,
			.max_uV = 3450000,
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc2_consumers),
		.consumer_supplies = tps65070_dcdc2_consumers,
		.driver_data = &tps6507x_platform_data,
	},

	/* dcdc3 */
	{
		.constraints = {
			.min_uV = 950000,
			.max_uV = 1350000,
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc3_consumers),
		.consumer_supplies = tps65070_dcdc3_consumers,
		.driver_data = &tps6507x_platform_data,
	},

	/* ldo1 */
	{
		.constraints = {
			.min_uV = 1710000,
			.max_uV = 1890000,
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_ldo1_consumers),
		.consumer_supplies = tps65070_ldo1_consumers,
	},

	/* ldo2 */
	{
		.constraints = {
			.min_uV = 1140000,
			.max_uV = 1320000,
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_ldo2_consumers),
		.consumer_supplies = tps65070_ldo2_consumers,
	},
};

static struct touchscreen_init_data tps6507x_touchscreen_data = {
	.poll_period =  30,	/* ms between touch samples */
	.min_pressure = 0x30,	/* minimum pressure to trigger touch */
	.vref = 0,		/* turn off vref when not using A/D */
	.vendor = 0,		/* /sys/class/input/input?/id/vendor */
	.product = 65070,	/* /sys/class/input/input?/id/product */
	.version = 0x100,	/* /sys/class/input/input?/id/version */
};

static struct tps6507x_board tps_board = {
	.tps6507x_pmic_init_data = &tps65070_regulator_data[0],
	.tps6507x_ts_init_data = &tps6507x_touchscreen_data,
};

static struct i2c_board_info __initdata da850_evm_i2c_devices[] = {
	{
		I2C_BOARD_INFO("24c256", 0x50),
		.platform_data = &da850_evm_i2c_eeprom_info,
	},
	{
		I2C_BOARD_INFO("tlv320aic3x", 0x18),
	},
	{
		I2C_BOARD_INFO("tca6416", 0x20),
		.platform_data = &da850_evm_ui_expander_info,
	},
	{
		I2C_BOARD_INFO("tca6416", 0x21),
		.platform_data = &da850_evm_bb_expander_info,
	},
	{
		I2C_BOARD_INFO("tca8418", 0x34),
		.platform_data = &tca8418_pdata,
	},
	{
		I2C_BOARD_INFO("tps6507x", 0x48),
		.platform_data = &tps_board,
	},
	{
		I2C_BOARD_INFO("cdce913", 0x65),
	},
	{
		I2C_BOARD_INFO("PCA9543A", 0x73),
	},
};

static const short da850_evm_lcdc_pins[] = {
	DA850_GPIO2_8, DA850_GPIO2_15,
	-1
};

static struct i2c_client *pca9543a;

static int pca9543a_probe(struct i2c_client *client,
		const struct i2c_device_id *id)
{
	pr_info("pca9543a_probe");
	pca9543a = client;
	return 0;
}

static int pca9543a_remove(struct i2c_client *client)
{
	pca9543a = NULL;
	return 0;
}

static const struct i2c_device_id pca9543a_ids[] = {
	{ "PCA9543A", 0, },
	{ /* end of list */ },
};

/* This is for i2c driver for the MT9T031 header i2c switch */
static struct i2c_driver pca9543a_driver = {
	.driver.name	= "PCA9543A",
	.id_table	= pca9543a_ids,
	.probe		= pca9543a_probe,
	.remove		= pca9543a_remove,
};

/**
 * da850_enable_pca9543a() - Enable/Disable I2C switch PCA9543A for sensor
 * @en: enable/disable flag
 */
static int da850_enable_pca9543a(int en)
{
	static char val = 1;
	int status = 1;
	struct i2c_msg msg = {
			.flags = 0,
			.len = 1,
			.buf = &val,
		};

	pr_info("da850evm_enable_pca9543a\n");
	if (!en)
		val = 0;

	if (!pca9543a)
		return -ENXIO;

	msg.addr = pca9543a->addr;
	/* turn i2c switch, pca9543a, on/off */
	status = i2c_transfer(pca9543a->adapter, &msg, 1);
	if (status == 1)
		status = 0;

	return status;
}

static const short da850_evm_mii_pins[] = {
	DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
	DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
	DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
	DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
	DA850_MDIO_D,
	-1
};

static const short da850_evm_rmii_pins[] = {
	DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN,
	DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1,
	DA850_RMII_RXER, DA850_RMII_MHZ_50_CLK, DA850_MDIO_CLK,
	DA850_MDIO_D,
	-1
};

static int __init da850_evm_config_emac(void)
{
	void __iomem *cfg_chip3_base;
	int ret;
	u32 val;
	struct davinci_soc_info *soc_info = &davinci_soc_info;
	u8 rmii_en = soc_info->emac_pdata->rmii_en;

	if (!machine_is_davinci_da850_evm())
		return 0;

	cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);

	val = __raw_readl(cfg_chip3_base);

	if (rmii_en) {
		val |= BIT(8);
		ret = davinci_cfg_reg_list(da850_evm_rmii_pins);
		pr_info("EMAC: RMII PHY configured, MII PHY will not be"
							" functional\n");
	} else {
		val &= ~BIT(8);
		ret = davinci_cfg_reg_list(da850_evm_mii_pins);
		pr_info("EMAC: MII PHY configured, RMII PHY will not be"
							" functional\n");
	}

	if (ret)
		pr_warning("da850_evm_init: cpgmac/rmii mux setup failed: %d\n",
				ret);

	/* configure the CFGCHIP3 register for RMII or MII */
	__raw_writel(val, cfg_chip3_base);

	ret = davinci_cfg_reg(DA850_GPIO2_6);
	if (ret)
		pr_warning("da850_evm_init:GPIO(2,6) mux setup "
							"failed\n");

	ret = gpio_request(DA850_MII_MDIO_CLKEN_PIN, "mdio_clk_en");
	if (ret) {
		pr_warning("Cannot open GPIO %d\n",
					DA850_MII_MDIO_CLKEN_PIN);
		return ret;
	}

	/* Enable/Disable MII MDIO clock */
	gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en);

	soc_info->emac_pdata->phy_id = DA850_EVM_PHY_ID;

	ret = da8xx_register_emac();
	if (ret)
		pr_warning("da850_evm_init: emac registration failed: %d\n",
				ret);

	return 0;
}
device_initcall(da850_evm_config_emac);

static const struct vpif_input da850_ch2_inputs[] = {
		{
		.input = {
			.index = 0,
			.name = "Camera",
			.type = V4L2_INPUT_TYPE_CAMERA,
			.std = V4L2_STD_BAYER_ALL
		},
		.subdev_name = "mt9t031",
	},
};

/*
 * The following EDMA channels/slots are not being used by drivers (for
 * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM, hence
 * they are being reserved for codecs on the DSP side.
 */
static const s16 da850_dma0_rsv_chans[][2] = {
	/* (offset, number) */
	{ 8,  6},
	{24,  4},
	{30,  2},
	{-1, -1}
};

static const s16 da850_dma0_rsv_slots[][2] = {
	/* (offset, number) */
	{ 8,  6},
	{24,  4},
	{30, 50},
	{-1, -1}
};

static const s16 da850_dma1_rsv_chans[][2] = {
	/* (offset, number) */
	{ 0, 28},
	{30,  2},
	{-1, -1}
};

static const s16 da850_dma1_rsv_slots[][2] = {
	/* (offset, number) */
	{ 0, 28},
	{30, 90},
	{-1, -1}
};

static struct edma_rsv_info da850_edma_cc0_rsv = {
	.rsv_chans	= da850_dma0_rsv_chans,
	.rsv_slots	= da850_dma0_rsv_slots,
};

static struct edma_rsv_info da850_edma_cc1_rsv = {
	.rsv_chans	= da850_dma1_rsv_chans,
	.rsv_slots	= da850_dma1_rsv_slots,
};

static struct edma_rsv_info *da850_edma_rsv[2] = {
	&da850_edma_cc0_rsv,
	&da850_edma_cc1_rsv,
};

#ifdef CONFIG_CPU_FREQ
static __init int da850_evm_init_cpufreq(void)
{
	switch (system_rev & 0xF) {
	case 3:
		da850_max_speed = 456000;
		break;
	case 2:
		da850_max_speed = 408000;
		break;
	case 1:
		da850_max_speed = 372000;
		break;
	}

	return da850_register_cpufreq("pll0_sysclk3");
}
#else
static __init int da850_evm_init_cpufreq(void) { return 0; }
#endif

static struct i2c_gpio_platform_data da850_gpio_i2c_pdata = {
	.sda_pin	= GPIO_TO_PIN(1, 4),
	.scl_pin	= GPIO_TO_PIN(1, 5),
	.udelay		= 2,			/* 250 KHz */
};

static struct platform_device da850_gpio_i2c = {
	.name		= "i2c-gpio",
	.id		= 1,
	.dev		= {
		.platform_data	= &da850_gpio_i2c_pdata,
	},
};

/* Retaining these APIs, since the VPIF drivers do not check NULL handlers */
static int da850_set_vpif_clock(int mux_mode, int hd)
{
	return 0;
}

static int da850_setup_vpif_input_channel_mode(int mux_mode)
{
	return 0;
}

/*Enable mt9t031 by configuring pca9543a i2c switch on sensor
 */
int da850_vpif_setup_input_path(int ch, const char *name)
{
	int ret = 0;

	if (have_imager())
		ret = da850_enable_pca9543a(1);

	return ret;
}

static int da850_vpif_intr_status(void __iomem *vpif_base, int channel)
{
	int status = 0;
	int mask;

	if (channel < 0 || channel > 3)
		return 0;

	mask = 1 << channel;
	status = __raw_readl((vpif_base + VPIF_STATUS)) & mask;
	__raw_writel(status, (vpif_base + VPIF_STATUS_CLR));

	return status;
}

#if defined(CONFIG_DA850_UI_SD_VIDEO_PORT)
/* VPIF capture configuration */
static struct tvp514x_platform_data tvp5146_pdata = {
	.clk_polarity = 0,
	.hs_polarity = 1,
	.vs_polarity = 1
};
#endif

#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)

static struct vpif_subdev_info da850_vpif_capture_sdev_info[] = {
#if defined(CONFIG_DA850_UI_CAMERA)
	{
		.name	= "mt9t031",
		.board_info = {
			I2C_BOARD_INFO("mt9t031", 0x5d),
			.platform_data = (void *)1,
		},
		.vpif_if = {
			.if_type = VPIF_IF_RAW_BAYER,
			.hd_pol = 0,
			.vd_pol = 0,
			.fid_pol = 0,
		},
	},
#elif defined(CONFIG_DA850_UI_SD_VIDEO_PORT)
	{
		.name	= TVP5147_CH0,
		.board_info = {
			I2C_BOARD_INFO("tvp5146", 0x5d),
			.platform_data = &tvp5146_pdata,
		},
		.input = INPUT_CVBS_VI2B,
		.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
		.can_route = 1,
		.vpif_if = {
			.if_type = VPIF_IF_BT656,
			.hd_pol = 1,
			.vd_pol = 1,
			.fid_pol = 0,
		},
	},
	{
		.name	= TVP5147_CH1,
		.board_info = {
			I2C_BOARD_INFO("tvp5146", 0x5c),
			.platform_data = &tvp5146_pdata,
		},
		.input = INPUT_SVIDEO_VI2C_VI1C,
		.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
		.can_route = 1,
		.vpif_if = {
			.if_type = VPIF_IF_BT656,
			.hd_pol = 1,
			.vd_pol = 1,
			.fid_pol = 0,
		},
	},
#endif
};

static const struct vpif_input da850_ch0_inputs[] = {
	{
		.input = {
			.index = 0,
			.name = "Composite",
			.type = V4L2_INPUT_TYPE_CAMERA,
			.std = TVP514X_STD_ALL,
		},
		.subdev_name = TVP5147_CH0,
	},
};

static const struct vpif_input da850_ch1_inputs[] = {
       {
		.input = {
			.index = 0,
			.name = "S-Video",
			.type = V4L2_INPUT_TYPE_CAMERA,
			.std = TVP514X_STD_ALL,
		},
		.subdev_name = TVP5147_CH1,
	},
};

static struct vpif_capture_config da850_vpif_capture_config = {
	.setup_input_channel_mode = da850_setup_vpif_input_channel_mode,
	.setup_input_path = da850_vpif_setup_input_path,
	.intr_status = da850_vpif_intr_status,
	.subdev_info = da850_vpif_capture_sdev_info,
	.subdev_count = ARRAY_SIZE(da850_vpif_capture_sdev_info),
#if defined(CONFIG_DA850_UI_SD_VIDEO_PORT)
	.chan_config[0] = {
		.inputs = da850_ch0_inputs,
		.input_count = ARRAY_SIZE(da850_ch0_inputs),
	},
	.chan_config[1] = {
		.inputs = da850_ch1_inputs,
		.input_count = ARRAY_SIZE(da850_ch1_inputs),
	},
#elif defined(CONFIG_DA850_UI_CAMERA)
	.chan_config[0] = {
		.inputs = da850_ch2_inputs,
		.input_count = ARRAY_SIZE(da850_ch2_inputs),
	},
#endif
	.card_name      = "DA850/OMAP-L138 Video Capture",
};

/* VPIF display configuration */
static struct vpif_subdev_info da850_vpif_subdev[] = {
	{
		.name	= "adv7343",
		.board_info = {
			I2C_BOARD_INFO("adv7343", 0x2a),
		},
	},
};

static const char *vpif_output[] = {
	"Composite",
	"Component",
	"S-Video",
};

static struct vpif_display_config da850_vpif_display_config = {
	.set_clock	= da850_set_vpif_clock,
	.intr_status	= da850_vpif_intr_status,
	.subdevinfo	= da850_vpif_subdev,
	.subdev_count	= ARRAY_SIZE(da850_vpif_subdev),
	.output		= vpif_output,
	.output_count	= ARRAY_SIZE(vpif_output),
	.card_name	= "DA850/OMAP-L138 Video Display",
};

#if defined(CONFIG_DAVINCI_MCBSP0)
#define HAS_MCBSP0 1
#else
#define HAS_MCBSP0 0
#endif

#if defined(CONFIG_DAVINCI_MCBSP1)
#define HAS_MCBSP1 1
#else
#define HAS_MCBSP1 0
#endif

#if defined(CONFIG_TI_DAVINCI_EMAC) || \
	defined(CONFIG_TI_DAVINCI_EMAC_MODULE)
#define HAS_EMAC 1
#else
#define HAS_EMAC 0
#endif

#if defined(CONFIG_SND_DA850_SOC_EVM) || \
	defined(CONFIG_SND_DA850_SOC_EVM_MODULE)
#define HAS_MCASP 1
#else
#define HAS_MCASP 0
#endif

#if defined(CONFIG_DAVINCI_UART1_AFE)
#define HAS_UART1_AFE 1
#else
#define HAS_UART1_AFE 0
#endif

#if defined(CONFIG_DA850_UI_RMII) && (HAS_EMAC)
#define HAS_RMII 1
#else
#define HAS_RMII 0
#endif

#if defined(CONFIG_DA850_UI_LCD) && defined(CONFIG_FB_DA8XX) ||\
		defined(CONFIG_FB_DA8XX_MODULE)
#define HAS_GLCD 1
#else
#define HAS_GLCD 0
#endif

#if defined(CONFIG_VIDEO_DAVINCI_VPIF_DISPLAY) ||\
		defined(CONFIG_VIDEO_DAVINCI_VPIF_DISPLAY_MODULE)
#define HAS_VPIF_DISPLAY 1
#else
#define HAS_VPIF_DISPLAY 0
#endif

#if defined(CONFIG_VIDEO_DAVINCI_VPIF_CAPTURE) ||\
		defined(CONFIG_VIDEO_DAVINCI_VPIF_CAPTURE_MODULE)
#define HAS_VPIF_CAPTURE 1
#else
#define HAS_VPIF_CAPTURE 0
#endif

#if defined(CONFIG_VIDEO_DAVINCI_VPIF_CAPTURE) ||\
		defined(CONFIG_VIDEO_DAVINCI_VPIF_CAPTURE_MODULE)
#define HAS_VPIF_CAPTURE 1
#else
#define HAS_VPIF_CAPTURE 0
#endif

#define DA850EVM_SATA_REFCLKPN_RATE	(100 * 1000 * 1000)

#if defined(CONFIG_SPI_DAVINCI)
#define HAS_SPI 1
#else
#define HAS_SPI 0
#endif

#if defined(CONFIG_FB_DA8XX)
#define HAS_LCD	1
#else
#define HAS_LCD	0
#endif

#ifdef CONFIG_DA850_MISTRAL_WL12XX

static struct wl12xx_platform_data da850_wl12xx_wlan_data __initdata = {
	.irq = -1,
	.board_ref_clock = CONFIG_DA850_MISTRAL_WL12XX_REFCLOCK,
	.platform_quirks = WL12XX_PLATFORM_QUIRK_EDGE_IRQ,
};

static void da850_wl12xx_set_platform_data(void)
{
	da850_wl12xx_wlan_data.irq = gpio_to_irq(DA850_WLAN_IRQ);
	if (wl12xx_set_platform_data(&da850_wl12xx_wlan_data))
		pr_err("Error setting wl12xx data\n");
}

#else

static void da850_wl12xx_set_platform_data(void) { }

#endif

static void da850_wl12xx_init(void)
{
	if (gpio_request(DA850_WLAN_EN, "wl12xx") ||
	    gpio_direction_output(DA850_WLAN_EN, 0))
		pr_err("Error initializing the wl12xx enable gpio\n");

	if (gpio_request(DA850_WLAN_IRQ, "wl12xx_irq") ||
	    gpio_direction_input(DA850_WLAN_IRQ))
		pr_err("Error initializing the wl12xx irq gpio\n");
	if (gpio_request(WL1271_BT_EN_GPIO, "wl1271 BT Enable") ||
	    gpio_direction_output(WL1271_BT_EN_GPIO,0))
		pr_err("Failed to request BT_EN GPIO\n");

	da850_wl12xx_set_platform_data();
}

static __init void da850_evm_init(void)
{
	int ret;
	char mask = 0;
	struct davinci_soc_info *soc_info = &davinci_soc_info;

	u8 rmii_en = soc_info->emac_pdata->rmii_en;
	ret = da850_register_edma(da850_edma_rsv);
	if (ret)
		pr_warning("da850_evm_init: edma registration failed: %d\n",
				ret);

	ret = davinci_cfg_reg_list(da850_i2c0_pins);
	if (ret)
		pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
				ret);

	platform_device_register(&da850_gpio_i2c);

	/* Register PRUSS device */
	da8xx_register_pruss();

	ret = da8xx_register_watchdog();
	if (ret)
		pr_warning("da830_evm_init: watchdog registration failed: %d\n",
				ret);

	/* Support for UART 1 */
	ret = davinci_cfg_reg_list(da850_uart1_pins);
	if (ret)
		pr_warning("da850_evm_init: UART 1 mux setup failed:"
						" %d\n", ret);

	ret = da850_register_sata(DA850EVM_SATA_REFCLKPN_RATE);
	if (ret)
		pr_warning("da850_evm_init: sata registration failed: %d\n",
				ret);

	if (HAS_MMC) {
		ret = davinci_cfg_reg_list(da850_mmcsd0_pins);
		if (ret)
			pr_warning("da850_evm_init: mmcsd0 mux setup failed:"
					" %d\n", ret);

		ret = davinci_cfg_reg_list(da850_mmcsd1_pins);
		if (ret)
			pr_warning("da850_evm_init: mmcsd1 mux setup failed:"
					" %d\n", ret);

		ret = gpio_request(DA850_MMCSD_CD_PIN, "MMC CD\n");
		if (ret)
			pr_warning("da850_evm_init: can not open GPIO %d\n",
					DA850_MMCSD_CD_PIN);
		gpio_direction_input(DA850_MMCSD_CD_PIN);

		ret = gpio_request(DA850_MMCSD_WP_PIN, "MMC WP\n");
		if (ret)
			pr_warning("da850_evm_init: can not open GPIO %d\n",
					DA850_MMCSD_WP_PIN);
		gpio_direction_input(DA850_MMCSD_WP_PIN);

		ret = da8xx_register_mmcsd0(&da850_mmc_config[0]);
		if (ret)
			pr_warning("da850_evm_init: mmcsd0 registration failed:"
					" %d\n", ret);
		ret = da850_register_mmcsd1(&da850_mmc_config[1]);
		if (ret)
			pr_warning("da850_evm_init: mmcsd0 registration failed:"
					" %d\n", ret);

		da850_wl12xx_init();
	}

	davinci_serial_init(&da850_evm_uart_config);

	if (have_imager())
		i2c_add_driver(&pca9543a_driver);

	i2c_register_board_info(1, da850_evm_i2c_devices,
			ARRAY_SIZE(da850_evm_i2c_devices));

	/*
	 * shut down uart 0 and 1; they are not used on the board and
	 * accessing them causes endless "too much work in irq53" messages
	 * with arago fs
	 */
	__raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);

	if (HAS_MCBSP0) {
		if (HAS_EMAC)
			pr_warning("WARNING: both MCBSP0 and EMAC are "
				"enabled, but they share pins.\n"
				"\tDisable one of them.\n");

		ret = davinci_cfg_reg_list(da850_mcbsp0_pins);
		if (ret)
			pr_warning("da850_evm_init: mcbsp0 mux setup failed:"
					" %d\n", ret);

		ret = da850_init_mcbsp(&da850_mcbsp0_config);
		if (ret)
			pr_warning("da850_evm_init: mcbsp0 registration"
					"failed: %d\n",	ret);
	}

	if (HAS_MCBSP1) {
		ret = davinci_cfg_reg_list(da850_mcbsp1_pins);
		if (ret)
			pr_warning("da850_evm_init: mcbsp1 mux setup failed:"
					" %d\n", ret);

		ret = da850_init_mcbsp(&da850_mcbsp1_config);
		if (ret)
			pr_warning("da850_evm_init: mcbsp1 registration"
					" failed: %d\n", ret);
	}
	 
	if (HAS_MCASP) {
		if ((HAS_MCBSP0 || HAS_MCBSP1))
			pr_warning("WARNING: both McASP and McBSP are enabled, "
					"but they share pins.\n"
					"\tOnly McASP will work. If you want "
					"McBSP support, disable McASP.\n");
		if (HAS_UART1_AFE)
			pr_warning("WARNING: both McASP and UART1_AFE are "
				"enabled, but they share pins.\n"
					"\tDisable one of them.\n");

		ret = davinci_cfg_reg_list(da850_mcasp_pins);
		if (ret)
			pr_warning("da850_evm_init: mcasp mux setup failed:"
					"%d\n", ret);

		da8xx_register_mcasp(0, &da850_evm_snd_data);
	}

	ret = davinci_cfg_reg_list(da850_lcdcntl_pins);
	if (ret)
		pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
				ret);

	/* Handle board specific muxing for LCD here */
	ret = davinci_cfg_reg_list(da850_evm_lcdc_pins);
	if (ret)
		pr_warning("da850_evm_init: evm specific lcd mux setup "
				"failed: %d\n",	ret);

	ret = da850_lcd_hw_init();
	if (ret)
		pr_warning("da850_evm_init: lcd initialization failed: %d\n",
				ret);

	sharp_lk043t1dg01_pdata.panel_power_ctrl = da850_panel_power_ctrl,
	ret = da8xx_register_lcdc(&sharp_lk043t1dg01_pdata);
	if (ret)
		pr_warning("da850_evm_init: lcdc registration failed: %d\n",
				ret);

	ret = da8xx_register_rtc();
	if (ret)
		pr_warning("da850_evm_init: rtc setup failed: %d\n", ret);

	ret = da850_evm_init_cpufreq();
	if (ret)
		pr_warning("da850_evm_init: cpufreq registration failed: %d\n",
				ret);

	ret = da8xx_register_cpuidle();
	if (ret)
		pr_warning("da850_evm_init: cpuidle registration failed: %d\n",
				ret);

	ret = da850_register_pm(&da850_pm_device);
	if (ret)
		pr_warning("da850_evm_init: suspend registration failed: %d\n",
				ret);

	if (system_rev & 0x100) {
		((struct flash_platform_data *)da850evm_spi_info[0] \
		.platform_data)->type = "w25x64";
	} else {
		((struct flash_platform_data *)da850evm_spi_info[0] \
		.platform_data)->type = "m25p64";
	}

	da850evm_init_spi1(da850evm_spi_info, ARRAY_SIZE(da850evm_spi_info));

	if (HAS_VPIF_DISPLAY || HAS_VPIF_CAPTURE) {
		ret = da850_register_vpif();
		if (ret)
			pr_warning("da850_evm_init: VPIF registration failed: "
					"%d\n",	ret);
	}

	if (!HAS_RMII && HAS_VPIF_CAPTURE) {
		ret = davinci_cfg_reg_list(da850_vpif_capture_pins);
		if (ret)
			pr_warning("da850_evm_init: vpif capture mux failed: "
					"%d\n",	ret);

		ret = da850_register_vpif_capture(&da850_vpif_capture_config);
		if (ret)
			pr_warning("da850_evm_init: VPIF registration failed: "
					"%d\n",	ret);

	}

	if (!HAS_GLCD && HAS_VPIF_DISPLAY) {
		ret = davinci_cfg_reg_list(da850_vpif_display_pins);
		if (ret)
			pr_warning("da850_evm_init: vpif capture mux failed: "
					"%d\n",	ret);

		ret = da850_register_vpif_display(&da850_vpif_display_config);
		if (ret)
			pr_warning("da850_evm_init: VPIF registration failed: "
					"%d\n",	ret);

	}

	if (rmii_en) {
		ret = davinci_cfg_reg_list(da850_ehrpwm0_pins);
		if (ret)
			pr_warning("da850_evm_init: ehrpwm0 mux setup failed:"
			       "%d\n",	ret);
		else
			mask = BIT(0) | BIT(1);
	} else {
		pr_warning("da850_evm_init: eHRPWM module 0 cannot be used"
			" since it is being used by MII interface\n");
		mask = 0;
	}

	if (!HAS_LCD) {
		ret = davinci_cfg_reg_list(da850_ehrpwm1_pins);
		if (ret)
			pr_warning("da850_evm_init: eHRPWM module1 output A mux"
			" setup failed %d\n", ret);
		else
			mask = mask | BIT(2);
	} else {
		pr_warning("da850_evm_init: eHRPWM module1 outputA cannot be"
			" used since it is being used by LCD\n");
	}

	if (!HAS_SPI) {
		ret = davinci_cfg_reg(DA850_EHRPWM1_B);
		if (ret)
			pr_warning("da850_evm_init: eHRPWM module1 outputB mux"
				" setup failed %d\n", ret);
		else
			mask =  mask  | BIT(3);
	} else {
		pr_warning("da850_evm_init: eHRPWM module1 outputB cannot be"
			" used since it is being used by spi1\n");
	}

	da850_register_ehrpwm(mask);

	ret = platform_device_register(&da850evm_backlight);
	if (ret)
		pr_warning("da850_evm_init: backlight device registration"
				" failed: %d\n", ret);

	ret = davinci_cfg_reg(DA850_ECAP2_APWM2);
	if (ret)
		pr_warning("da850_evm_init:ecap mux failed: %d\n", ret);

	ret = da850_register_ecap(2);
	if (ret)
		pr_warning("da850_evm_init: eCAP registration failed: %d\n",
			       ret);
	ret = davinci_cfg_reg_list(da850_wl1271_pins);
	if (ret)
		pr_warning("da850_evm_init: wl1271 mux setup failed:"
		       "%d\n",	ret);
 
	ret = platform_device_register(&wl1271_device);
	if (ret)
		pr_warning("da850_evm_init: wl1271 device registration"
				" failed: %d\n", ret);
	/* initilaize usb module */
	da850_evm_usb_init();
}

#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init da850_evm_console_init(void)
{
	if (!machine_is_davinci_da850_evm())
		return 0;

	return add_preferred_console("ttyS", 2, "115200");
}
console_initcall(da850_evm_console_init);
#endif

static void __init da850_evm_map_io(void)
{
	da850_init();
}

MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138/AM18x EVM")
	.boot_params	= (DA8XX_DDR_BASE + 0x100),
	.map_io		= da850_evm_map_io,
	.init_irq	= cp_intc_init,
	.timer		= &davinci_timer,
	.init_machine	= da850_evm_init,
MACHINE_END

Above changes (marked in red) I did in board file. I didn't get below marked stuff. Is this required? Is that mapping already done in my file or I need to do it explicitly. Problem is I don't know how to read platform board file so could you please explain a bit.

static struct matrix_keypad_platform_data da850_keypad_platform_data = {
    .keymap_data       = &da850_keymap_data,
    .row_gpios         = da850_keypad_row_gpios,
    .num_row_gpios     = ARRAY_SIZE(da850_keypad_row_gpios),
    .col_gpios         = da850_keypad_col_gpios,
    .num_col_gpios     = ARRAY_SIZE(da850_keypad_col_gpios),
    .active_low        = true,
    .debounce_ms       = 5,
    .col_scan_delay_us = 2,
};


static short da850_matrix_gpio[] __initdata= { 
    DA850_GPIO2_1,
    DA850_GPIO2_7,
    DA850_GPIO2_6,
    DA850_GPIO2_2,
    -1 
};

File:drivers/input/keyboard/Makefile
obj-$(CONFIG_KEYBOARD_TCA6416)        += tca6416-keypad.o
obj-$(CONFIG_KEYBOARD_TCA8418)        += tca8418_keypad.o
obj-$(CONFIG_KEYBOARD_HIL)        += hil_kbd.o

File: drivers/input/keyboard/Kconfig
config KEYBOARD_TCA6416
    tristate "TCA6416/TCA6408A Keypad Support"
    depends on I2C
    help
      This driver implements basic keypad functionality
      for keys connected through TCA6416/TCA6408A IO expanders.

      Say Y here if your device has keys connected to
      TCA6416/TCA6408A IO expander. Your board-specific setup logic
      must also provide pin-mask details(of which TCA6416 pins
      are used for keypad).

      If enabled the entire TCA6416 device will be managed through
      this driver.

      To compile this driver as a module, choose M here: the
      module will be called tca6416_keypad.

config KEYBOARD_TCA8418
    tristate "TCA8418 Keypad Support"
    depends on I2C
    help
      This driver implements basic keypad functionality
      for keys connected through TCA8418 keypad decoder.

      Say Y here if your device has keys connected to
      TCA8418 keypad decoder.

      If enabled the complete TCA8418 device will be managed through
      this driver.

      To compile this driver as a module, choose M here: the
      module will be called tca8418_keypad.

config KEYBOARD_MATRIX

Hi Aditya,

Sorry for the delayed response.

Thanks for your files and schematics.

Could you attach your complete bootup log and board file one more time.

Please attach the files and not text paste in post.