mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 16:54:20 +08:00
84b2170109
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>
68 lines
1.4 KiB
C
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);
|
|
}
|
|
}
|