arch/arm/mach-msm/board-8974-gpiomux.c

/* Copyright (c) 2012, Code Aurora Forum. 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 90

static struct gpiomux_setting gpio_uart_config = {
	.func = GPIOMUX_FUNC_2,
	.drv = GPIOMUX_DRV_16MA,
	.pull = GPIOMUX_PULL_NONE,
	.dir = GPIOMUX_OUT_HIGH,
};

static struct gpiomux_setting slimbus = {
	.func = GPIOMUX_FUNC_1,
	.drv = GPIOMUX_DRV_8MA,
	.pull = GPIOMUX_PULL_KEEPER,
};

#if defined(CONFIG_KS8851) || defined(CONFIG_KS8851_MODULE)
static struct gpiomux_setting gpio_eth_config = {
	.pull = GPIOMUX_PULL_NONE,
	.drv = GPIOMUX_DRV_8MA,
	.func = GPIOMUX_FUNC_GPIO,
};

static struct gpiomux_setting gpio_spi_cs_config = {
	.func = GPIOMUX_FUNC_4,
	.drv = GPIOMUX_DRV_12MA,
	.pull = GPIOMUX_PULL_NONE,
};

static struct gpiomux_setting gpio_spi_config = {
	.func = GPIOMUX_FUNC_1,
	.drv = GPIOMUX_DRV_12MA,
	.pull = GPIOMUX_PULL_NONE,
};

static struct msm_gpiomux_config msm_eth_configs[] = {
	{
		.gpio = KS8851_IRQ_GPIO,
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_eth_config,
		}
	},
};
#endif
static struct gpiomux_setting gpio_i2c_config = {
	.func = GPIOMUX_FUNC_3,
	.drv = GPIOMUX_DRV_8MA,
	.pull = GPIOMUX_PULL_NONE,
};

static struct gpiomux_setting lcd_en_act_cfg = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_8MA,
	.pull = GPIOMUX_PULL_NONE,
};

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

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

static struct gpiomux_setting atmel_resout_act_cfg = {
	.func = GPIOMUX_FUNC_GPIO,
	.drv = GPIOMUX_DRV_6MA,
	.pull = GPIOMUX_PULL_UP,
};

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

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

static struct msm_gpiomux_config msm_touch_configs[] __initdata = {
	{
		.gpio      = 60,		/* TOUCH RESET */
		.settings = {
			[GPIOMUX_ACTIVE] = &atmel_resout_act_cfg,
			[GPIOMUX_SUSPENDED] = &atmel_resout_sus_cfg,
		},
	},
	{
		.gpio      = 61,		/* TOUCH IRQ */
		.settings = {
			[GPIOMUX_ACTIVE] = &atmel_int_act_cfg,
			[GPIOMUX_SUSPENDED] = &atmel_int_sus_cfg,
		},
	},

};
static struct msm_gpiomux_config msm_blsp_configs[] __initdata = {
#if defined(CONFIG_KS8851) || defined(CONFIG_KS8851_MODULE)
	{
		.gpio      = 0,		/* BLSP1 QUP SPI_DATA_MOSI */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
	{
		.gpio      = 1,		/* BLSP1 QUP SPI_DATA_MISO */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
	{
		.gpio      = 3,		/* BLSP1 QUP SPI_CLK */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
	{
		.gpio      = 9,		/* BLSP1 QUP SPI_CS_N */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_cs_config,
		},
	},
#endif
	{
		.gpio = 58,
		.settings = {
			[GPIOMUX_ACTIVE]    = &lcd_en_act_cfg,
			[GPIOMUX_SUSPENDED] = &lcd_en_sus_cfg,
		},
	},
	{
		.gpio      = 6,		/* BLSP1 QUP2 I2C_DAT */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_i2c_config,
		},
	},
	{
		.gpio      = 7,		/* BLSP1 QUP2 I2C_CLK */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_i2c_config,
		},
	},
	{
		.gpio      = 83,		/* BLSP11 QUP I2C_DAT */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_i2c_config,
		},
	},
	{
		.gpio      = 84,		/* BLSP11 QUP I2C_CLK */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_i2c_config,
		},
	},
	{
		.gpio      = 4,			/* BLSP2 UART TX */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_uart_config,
		},
	},
	{
		.gpio      = 5,			/* BLSP2 UART RX */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_uart_config,
		},
	},
};

static struct msm_gpiomux_config msm8974_slimbus_config[] __initdata = {
	{
		.gpio	= 70,		/* slimbus clk */
		.settings = {
			[GPIOMUX_SUSPENDED] = &slimbus,
		},
	},
	{
		.gpio	= 71,		/* slimbus data */
		.settings = {
			[GPIOMUX_SUSPENDED] = &slimbus,
		},
	},
};

void __init msm_8974_init_gpiomux(void)
{
	int rc;

	rc = msm_gpiomux_init(NR_GPIO_IRQS);
	if (rc) {
		pr_err(KERN_ERR "msm_8974_init_gpiomux failed %d\n", 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_blsp_configs, ARRAY_SIZE(msm_blsp_configs));

	msm_gpiomux_install(msm8974_slimbus_config,
			ARRAY_SIZE(msm8974_slimbus_config));

	msm_gpiomux_install(msm_touch_configs, ARRAY_SIZE(msm_touch_configs));
}