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arm: exynos: Remove old pwm backlight driver

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Remove the unused older exynos pwm backlight driver.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Tom Rini 2022-06-10 22:59:32 -04:00
parent dc2d27ae72
commit 1e03e03d03
2 changed files with 0 additions and 64 deletions
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20
arch/arm/mach-exynos/include/mach/pwm_backlight.h
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2012 Samsung Electronics
*
* Author: Donghwa Lee <dh09.lee@samsung.com>
*/
#ifndef _PWM_BACKLIGHT_H_
#define _PWM_BACKLIGHT_H_
struct pwm_backlight_data {
int pwm_id;
int period;
int max_brightness;
int brightness;
};
extern int exynos_pwm_backlight_init(struct pwm_backlight_data *pd);
#endif /* _PWM_BACKLIGHT_H_ */

44
drivers/video/exynos/exynos_pwm_bl.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* PWM BACKLIGHT driver for Board based on EXYNOS.
*
* Author: Donghwa Lee <dh09.lee@samsung.com>
*
* Derived from linux/drivers/video/backlight/pwm_backlight.c
*/
#include <common.h>
#include <pwm.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/gpio.h>
#include <asm/arch/pwm.h>
#include <asm/arch/pwm_backlight.h>
static struct pwm_backlight_data *pwm;
static int exynos_pwm_backlight_update_status(void)
{
int brightness = pwm->brightness;
int max = pwm->max_brightness;
if (brightness == 0) {
pwm_config(pwm->pwm_id, 0, pwm->period);
pwm_disable(pwm->pwm_id);
} else {
pwm_config(pwm->pwm_id,
brightness * pwm->period / max, pwm->period);
pwm_enable(pwm->pwm_id);
}
return 0;
}
int exynos_pwm_backlight_init(struct pwm_backlight_data *pd)
{
pwm = pd;
exynos_pwm_backlight_update_status();
return 0;
}