kernel_samsung_msm8974/arch/arm/mach-msm/board-krypton-gpiomux.c

/* Copyright (c) 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 75

#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_config[] = {
	{
		.gpio = KS8851_IRQ_GPIO,
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_eth_config,
		}
	},
};
#endif

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

static struct gpiomux_setting gpio_spi_config = {
	.func = GPIOMUX_FUNC_2,
	.drv = GPIOMUX_DRV_6MA,
	.pull = GPIOMUX_PULL_NONE,
};

static struct msm_gpiomux_config msm_blsp_configs[] __initdata = {
	{
		.gpio      = 8,	       /* BLSP1 UART TX */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_uart_config,
		},
	},
	{
		.gpio      = 9,	       /* BLSP1 UART RX */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_uart_config,
		},
	},
	{
		.gpio      = 20,		/* BLSP1 QUP6 SPI_DATA_MOSI */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
	{
		.gpio      = 21,		/* BLSP1 QUP6 SPI_DATA_MISO */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
	{
		.gpio      = 23,		/* BLSP1 QUP6 SPI_CLK */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
	{
		.gpio      = 22,		/* BLSP1 QUP6 SPI_CS */
		.settings = {
			[GPIOMUX_SUSPENDED] = &gpio_spi_config,
		},
	},
};

void __init msmkrypton_init_gpiomux(void)
{
	int rc;

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

	msm_gpiomux_install(msm_blsp_configs, ARRAY_SIZE(msm_blsp_configs));
#if defined(CONFIG_KS8851) || defined(CONFIG_KS8851_MODULE)
	msm_gpiomux_install(msm_eth_config, ARRAY_SIZE(msm_eth_config));
#endif
}