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ARM: S5P: Add platform helpers for camera GPIO configuration

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Add functions for configuration of the parallel camera
bus pins on S5PV210 and Exynos4 SoC.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Sylwester Nawrocki 2011-03-10 21:49:31 +09:00 committed by Kukjin Kim
parent 6d2f42cc27
commit 0048a17348
7 changed files with 127 additions and 0 deletions
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5
arch/arm/mach-exynos4/Kconfig
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@ -76,6 +76,11 @@ config EXYNOS4_SETUP_SDHCI_GPIO
help
Common setup code for SDHCI gpio.
config EXYNOS4_SETUP_FIMC
bool
help
Common setup code for the camera interfaces.
# machine support
menu "EXYNOS4 Machines"

1
arch/arm/mach-exynos4/Makefile
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@ -41,6 +41,7 @@ obj-y += dev-audio.o
obj-$(CONFIG_EXYNOS4_DEV_PD) += dev-pd.o
obj-$(CONFIG_EXYNOS4_DEV_SYSMMU) += dev-sysmmu.o
obj-$(CONFIG_EXYNOS4_SETUP_FIMC) += setup-fimc.o
obj-$(CONFIG_EXYNOS4_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_EXYNOS4_SETUP_I2C2) += setup-i2c2.o
obj-$(CONFIG_EXYNOS4_SETUP_I2C3) += setup-i2c3.o

44
arch/arm/mach-exynos4/setup-fimc.c Normal file
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@ -0,0 +1,44 @@
/*
* Copyright (C) 2011 Samsung Electronics Co., Ltd.
*
* Exynos4 camera interface GPIO configuration.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/gpio.h>
#include <plat/gpio-cfg.h>
#include <plat/camport.h>
int exynos4_fimc_setup_gpio(enum s5p_camport_id id)
{
u32 gpio8, gpio5;
u32 sfn;
int ret;
switch (id) {
case S5P_CAMPORT_A:
gpio8 = EXYNOS4_GPJ0(0); /* PCLK, VSYNC, HREF, DATA[0:4] */
gpio5 = EXYNOS4_GPJ1(0); /* DATA[5:7], CLKOUT, FIELD */
sfn = S3C_GPIO_SFN(2);
break;
case S5P_CAMPORT_B:
gpio8 = EXYNOS4_GPE0(0); /* DATA[0:7] */
gpio5 = EXYNOS4_GPE1(0); /* PCLK, VSYNC, HREF, CLKOUT, FIELD */
sfn = S3C_GPIO_SFN(3);
break;
default:
WARN(1, "Wrong camport id: %d\n", id);
return -EINVAL;
}
ret = s3c_gpio_cfgall_range(gpio8, 8, sfn, S3C_GPIO_PULL_UP);
if (ret)
return ret;
return s3c_gpio_cfgall_range(gpio5, 5, sfn, S3C_GPIO_PULL_UP);
}

5
arch/arm/mach-s5pv210/Kconfig
View File

@ -53,6 +53,11 @@ config S5PV210_SETUP_SDHCI_GPIO
help
Common setup code for SDHCI gpio.
config S5PV210_SETUP_FIMC
bool
help
Common setup code for the camera interfaces.
menu "S5PC110 Machines"
config MACH_AQUILA

1
arch/arm/mach-s5pv210/Makefile
View File

@ -31,6 +31,7 @@ obj-y += dev-audio.o
obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o
obj-$(CONFIG_S5PV210_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S5PV210_SETUP_FIMC) += setup-fimc.o
obj-$(CONFIG_S5PV210_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_S5PV210_SETUP_I2C2) += setup-i2c2.o
obj-$(CONFIG_S5PV210_SETUP_IDE) += setup-ide.o

43
arch/arm/mach-s5pv210/setup-fimc.c Normal file
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@ -0,0 +1,43 @@
/*
* Copyright (C) 2011 Samsung Electronics Co., Ltd.
*
* S5PV210 camera interface GPIO configuration.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/gpio.h>
#include <plat/gpio-cfg.h>
#include <plat/camport.h>
int s5pv210_fimc_setup_gpio(enum s5p_camport_id id)
{
u32 gpio8, gpio5;
int ret;
switch (id) {
case S5P_CAMPORT_A:
gpio8 = S5PV210_GPE0(0);
gpio5 = S5PV210_GPE1(0);
break;
case S5P_CAMPORT_B:
gpio8 = S5PV210_GPJ0(0);
gpio5 = S5PV210_GPJ1(0);
break;
default:
WARN(1, "Wrong camport id: %d\n", id);
return -EINVAL;
}
ret = s3c_gpio_cfgall_range(gpio8, 8, S3C_GPIO_SFN(2),
S3C_GPIO_PULL_UP);
if (ret)
return ret;
return s3c_gpio_cfgall_range(gpio5, 5, S3C_GPIO_SFN(2),
S3C_GPIO_PULL_UP);
}

28
arch/arm/plat-s5p/include/plat/camport.h Normal file
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@ -0,0 +1,28 @@
/*
* Copyright (C) 2011 Samsung Electronics Co., Ltd.
*
* S5P series camera interface helper functions
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef PLAT_S5P_CAMPORT_H_
#define PLAT_S5P_CAMPORT_H_ __FILE__
enum s5p_camport_id {
S5P_CAMPORT_A,
S5P_CAMPORT_B,
};
/*
* The helper functions to configure GPIO for the camera parallel bus.
* The camera port can be multiplexed with any FIMC entity, even multiple
* FIMC entities are allowed to be attached to a single port simultaneously.
* These functions are to be used in the board setup code.
*/
int s5pv210_fimc_setup_gpio(enum s5p_camport_id id);
int exynos4_fimc_setup_gpio(enum s5p_camport_id id);
#endif