/* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <linux/init.h>
#include <linux/ioport.h>
#include <mach/board.h>
#include <mach/gpio.h>
#include <mach/gpiomux.h>

#define KS8851_IRQ_GPIO 115

#if defined(CONFIG_KS8851) || defined(CONFIG_KS8851_MODULE)
static struct gpiomux_setting gpio_eth_config = {
	.pull = GPIOMUX_PULL_UP,
	.drv = GPIOMUX_DRV_2MA,
	.func = GPIOMUX_FUNC_GPIO,
};

static struct msm_gpiomux_config msm_eth_configs[] = {
	{
		.gpio = KS8851_IRQ_GPIO,
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_eth_config,
		}
	},
};
#endif

static struct gpiomux_setting synaptics_int_act_cfg = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_8MA,
	.pull = GPIOMUX_PULL_UP,
};

static struct gpiomux_setting synaptics_int_sus_cfg = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_2MA,
	.pull = GPIOMUX_PULL_DOWN,
};

static struct gpiomux_setting synaptics_reset_act_cfg = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_6MA,
	.pull = GPIOMUX_PULL_DOWN,
};

static struct gpiomux_setting synaptics_reset_sus_cfg = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_6MA,
	.pull = GPIOMUX_PULL_DOWN,
};

static struct gpiomux_setting gpio_keys_active = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_2MA,
	.pull = GPIOMUX_PULL_UP,
};

static struct gpiomux_setting gpio_keys_suspend = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_2MA,
	.pull = GPIOMUX_PULL_NONE,
};

static struct gpiomux_setting gpio_spi_config = {
	.func = GPIOMUX_FUNC_1,
	.drv = GPIOMUX_DRV_8MA,
	.pull = GPIOMUX_PULL_NONE,
};

static struct gpiomux_setting gpio_spi_cs_config = {
	.func = GPIOMUX_FUNC_1,
	.drv = GPIOMUX_DRV_6MA,
	.pull = GPIOMUX_PULL_DOWN,
};

static struct gpiomux_setting gpio_spi_cs_eth_config = {
	.func = GPIOMUX_FUNC_4,
	.drv = GPIOMUX_DRV_6MA,
	.pull = GPIOMUX_PULL_DOWN,
};

static struct gpiomux_setting wcnss_5wire_suspend_cfg = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv  = GPIOMUX_DRV_2MA,
	.pull = GPIOMUX_PULL_UP,
};

static struct gpiomux_setting wcnss_5wire_active_cfg = {
	.func = GPIOMUX_FUNC_1,
	.drv  = GPIOMUX_DRV_6MA,
	.pull = GPIOMUX_PULL_DOWN,
};

static struct gpiomux_setting gpio_i2c_config = {
	.func = GPIOMUX_FUNC_3,
	.drv = GPIOMUX_DRV_2MA,
	.pull = GPIOMUX_PULL_NONE,
};

static struct msm_gpiomux_config msm_keypad_configs[] __initdata = {
	{
		.gpio = 106,
		.settings = {
			[GPIOMUX_ACTIVE]    = &gpio_keys_active,
			[GPIOMUX_SUSPENDED] = &gpio_keys_suspend,
		},
	},
	{
		.gpio = 107,
		.settings = {
			[GPIOMUX_ACTIVE]    = &gpio_keys_active,
			[GPIOMUX_SUSPENDED] = &gpio_keys_suspend,
		},
	},
	{
		.gpio = 108,
		.settings = {
			[GPIOMUX_ACTIVE]    = &gpio_keys_active,
			[GPIOMUX_SUSPENDED] = &gpio_keys_suspend,
		},
	},
};

static struct gpiomux_setting lcd_rst_act_cfg = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_8MA,
	.pull = GPIOMUX_PULL_NONE,
	.dir = GPIOMUX_OUT_LOW,
};

static struct gpiomux_setting lcd_rst_sus_cfg = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_2MA,
	.pull = GPIOMUX_PULL_DOWN,
};

static struct msm_gpiomux_config msm_lcd_configs[] __initdata = {
	{
		.gpio = 25,
		.settings = {
			[GPIOMUX_ACTIVE]    = &lcd_rst_act_cfg,
			[GPIOMUX_SUSPENDED] = &lcd_rst_sus_cfg,
		},
	}
};

static struct msm_gpiomux_config msm_blsp_configs[] __initdata = {
	{
		.gpio      = 0,		/* BLSP1 QUP1 SPI_DATA_MOSI */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
	{
		.gpio      = 1,		/* BLSP1 QUP1 SPI_DATA_MISO */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
	{
		.gpio      = 2,		/* BLSP1 QUP1 SPI_CS1 */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_cs_config,
		},
	},
	{
		.gpio      = 3,		/* BLSP1 QUP1 SPI_CLK */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
	{
		.gpio      = 14,	/* BLSP1 QUP4 I2C_SDA */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_i2c_config,
		},
	},
	{
		.gpio      = 15,	/* BLSP1 QUP4 I2C_SCL */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_i2c_config,
		},
	},
	{
		.gpio      = 18,		/* BLSP1 QUP5 I2C_SDA */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_i2c_config,
		},
	},
	{
		.gpio      = 19,		/* BLSP1 QUP5 I2C_SCL */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_i2c_config,
		},
	},
	{
		.gpio      = 22,		/* BLSP1 QUP1 SPI_CS_ETH */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_cs_eth_config,
		},
	},
};

static struct msm_gpiomux_config msm_synaptics_configs[] __initdata = {
	{
		.gpio = 16,
		.settings = {
			[GPIOMUX_ACTIVE] = &synaptics_reset_act_cfg,
			[GPIOMUX_SUSPENDED] = &synaptics_reset_sus_cfg,
		},
	},
	{
		.gpio = 17,
		.settings = {
			[GPIOMUX_ACTIVE] = &synaptics_int_act_cfg,
			[GPIOMUX_SUSPENDED] = &synaptics_int_sus_cfg,
		},
	},
};

static struct gpiomux_setting sd_card_det_active_config = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_2MA,
	.pull = GPIOMUX_PULL_NONE,
	.dir = GPIOMUX_IN,
};

static struct gpiomux_setting sd_card_det_sleep_config = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_2MA,
	.pull = GPIOMUX_PULL_UP,
	.dir = GPIOMUX_IN,
};

static struct msm_gpiomux_config sd_card_det __initdata = {
	.gpio = 38,
	.settings = {
		[GPIOMUX_ACTIVE]    = &sd_card_det_active_config,
		[GPIOMUX_SUSPENDED] = &sd_card_det_sleep_config,
	},
};

static struct msm_gpiomux_config wcnss_5wire_interface[] = {
	{
		.gpio = 40,
		.settings = {
			[GPIOMUX_ACTIVE]    = &wcnss_5wire_active_cfg,
			[GPIOMUX_SUSPENDED] = &wcnss_5wire_suspend_cfg,
		},
	},
	{
		.gpio = 41,
		.settings = {
			[GPIOMUX_ACTIVE]    = &wcnss_5wire_active_cfg,
			[GPIOMUX_SUSPENDED] = &wcnss_5wire_suspend_cfg,
		},
	},
	{
		.gpio = 42,
		.settings = {
			[GPIOMUX_ACTIVE]    = &wcnss_5wire_active_cfg,
			[GPIOMUX_SUSPENDED] = &wcnss_5wire_suspend_cfg,
		},
	},
	{
		.gpio = 43,
		.settings = {
			[GPIOMUX_ACTIVE]    = &wcnss_5wire_active_cfg,
			[GPIOMUX_SUSPENDED] = &wcnss_5wire_suspend_cfg,
		},
	},
	{
		.gpio = 44,
		.settings = {
			[GPIOMUX_ACTIVE]    = &wcnss_5wire_active_cfg,
			[GPIOMUX_SUSPENDED] = &wcnss_5wire_suspend_cfg,
		},
	},
};

static struct gpiomux_setting gpio_suspend_config[] = {
	{
		.func = GPIOMUX_FUNC_GPIO,  /* IN-NP */
		.drv = GPIOMUX_DRV_2MA,
		.pull = GPIOMUX_PULL_NONE,
	},
	{
		.func = GPIOMUX_FUNC_GPIO,  /* O-LOW */
		.drv = GPIOMUX_DRV_2MA,
		.pull = GPIOMUX_PULL_NONE,
		.dir = GPIOMUX_OUT_LOW,
	},
};

static struct gpiomux_setting cam_settings[] = {
	{
		.func = GPIOMUX_FUNC_1, /*active 1*/ /* 0 */
		.drv = GPIOMUX_DRV_2MA,
		.pull = GPIOMUX_PULL_NONE,
	},

	{
		.func = GPIOMUX_FUNC_1, /*suspend*/ /* 1 */
		.drv = GPIOMUX_DRV_2MA,
		.pull = GPIOMUX_PULL_DOWN,
	},

	{
		.func = GPIOMUX_FUNC_1, /*i2c suspend*/ /* 2 */
		.drv = GPIOMUX_DRV_2MA,
		.pull = GPIOMUX_PULL_KEEPER,
	},

	{
		.func = GPIOMUX_FUNC_GPIO, /*active 0*/ /* 3 */
		.drv = GPIOMUX_DRV_2MA,
		.pull = GPIOMUX_PULL_NONE,
	},

	{
		.func = GPIOMUX_FUNC_GPIO, /*suspend 0*/ /* 4 */
		.drv = GPIOMUX_DRV_2MA,
		.pull = GPIOMUX_PULL_DOWN,
	},
};


static struct msm_gpiomux_config msm_sensor_configs[] __initdata = {
	{
		.gpio = 26, /* CAM_MCLK0 */
		.settings = {
			[GPIOMUX_ACTIVE]    = &cam_settings[0],
			[GPIOMUX_SUSPENDED] = &cam_settings[1],
		},
	},
	{
		.gpio = 27, /* CAM_MCLK1 */
		.settings = {
			[GPIOMUX_ACTIVE]    = &cam_settings[0],
			[GPIOMUX_SUSPENDED] = &cam_settings[1],
		},

	},
	{
		.gpio = 29, /* CCI_I2C_SDA0 */
		.settings = {
			[GPIOMUX_ACTIVE]    = &cam_settings[0],
			[GPIOMUX_SUSPENDED] = &gpio_suspend_config[0],
		},
	},
	{
		.gpio = 30, /* CCI_I2C_SCL0 */
		.settings = {
			[GPIOMUX_ACTIVE]    = &cam_settings[0],
			[GPIOMUX_SUSPENDED] = &gpio_suspend_config[0],
		},
	},
	{
		.gpio = 36, /* CAM1_STANDBY_N */
		.settings = {
			[GPIOMUX_ACTIVE]    = &cam_settings[3],
			[GPIOMUX_SUSPENDED] = &cam_settings[4],
		},
	},
	{
		.gpio = 37, /* CAM1_RST_N */
		.settings = {
			[GPIOMUX_ACTIVE]    = &cam_settings[3],
			[GPIOMUX_SUSPENDED] = &cam_settings[4],
		},
	},
	{
		.gpio = 35, /* CAM2_STANDBY_N */
		.settings = {
			[GPIOMUX_ACTIVE]    = &cam_settings[3],
			[GPIOMUX_SUSPENDED] = &cam_settings[4],
		},
	},
	{
		.gpio = 28, /* CAM2_RST_N */
		.settings = {
			[GPIOMUX_ACTIVE]    = &cam_settings[3],
			[GPIOMUX_SUSPENDED] = &cam_settings[4],
		},
	},

};

void __init msm8226_init_gpiomux(void)
{
	int rc;

	rc = msm_gpiomux_init_dt();
	if (rc) {
		pr_err("%s failed %d\n", __func__, rc);
		return;
	}

#if defined(CONFIG_KS8851) || defined(CONFIG_KS8851_MODULE)
	msm_gpiomux_install(msm_eth_configs, ARRAY_SIZE(msm_eth_configs));
#endif
	msm_gpiomux_install(msm_keypad_configs,
			ARRAY_SIZE(msm_keypad_configs));

	msm_gpiomux_install(msm_blsp_configs, ARRAY_SIZE(msm_blsp_configs));
	msm_gpiomux_install(wcnss_5wire_interface,
				ARRAY_SIZE(wcnss_5wire_interface));

	msm_gpiomux_install(&sd_card_det, 1);
	msm_gpiomux_install(msm_synaptics_configs,
			ARRAY_SIZE(msm_synaptics_configs));
	msm_gpiomux_install_nowrite(msm_lcd_configs,
			ARRAY_SIZE(msm_lcd_configs));
	msm_gpiomux_install(msm_sensor_configs, ARRAY_SIZE(msm_sensor_configs));
}