linux/arch/arm/mach-s3c24xx/setup-camif.c
Krzysztof Kozlowski 84b2170109 ARM: S3C24XX: Add SPDX license identifiers
Replace GPL license statements with SPDX license identifiers (GPL-2.0
and GPL-2.0+).  The h1940-bluetooth.c was licensed under GPL-1.0.  This
also adds GPL-2.0 to few files lacking license statement.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-01-03 18:36:43 +01:00

68 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0
//
// Copyright (C) 2012 Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
//
// Helper functions for S3C24XX/S3C64XX SoC series CAMIF driver
#include <linux/gpio.h>
#include <plat/gpio-cfg.h>
#include <mach/gpio-samsung.h>
/* Number of camera port pins, without FIELD */
#define S3C_CAMIF_NUM_GPIOS 13
/* Default camera port configuration helpers. */
static void camif_get_gpios(int *gpio_start, int *gpio_reset)
{
#ifdef CONFIG_ARCH_S3C24XX
*gpio_start = S3C2410_GPJ(0);
*gpio_reset = S3C2410_GPJ(12);
#else
/* s3c64xx */
*gpio_start = S3C64XX_GPF(0);
*gpio_reset = S3C64XX_GPF(3);
#endif
}
int s3c_camif_gpio_get(void)
{
int gpio_start, gpio_reset;
int ret, i;
camif_get_gpios(&gpio_start, &gpio_reset);
for (i = 0; i < S3C_CAMIF_NUM_GPIOS; i++) {
int gpio = gpio_start + i;
if (gpio == gpio_reset)
continue;
ret = gpio_request(gpio, "camif");
if (!ret)
ret = s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
if (ret) {
pr_err("failed to configure GPIO %d\n", gpio);
for (--i; i >= 0; i--)
gpio_free(gpio--);
return ret;
}
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
return 0;
}
void s3c_camif_gpio_put(void)
{
int i, gpio_start, gpio_reset;
camif_get_gpios(&gpio_start, &gpio_reset);
for (i = 0; i < S3C_CAMIF_NUM_GPIOS; i++) {
int gpio = gpio_start + i;
if (gpio != gpio_reset)
gpio_free(gpio);
}
}