linux/drivers/video/backlight/88pm860x_bl.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Backlight driver for Marvell Semiconductor 88PM8606
 *
 * Copyright (C) 2009 Marvell International Ltd.
 *	Haojian Zhuang <[email protected]>
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/fb.h>
#include <linux/i2c.h>
#include <linux/backlight.h>
#include <linux/mfd/88pm860x.h>
#include <linux/module.h>

#define MAX_BRIGHTNESS …
#define MIN_BRIGHTNESS …

#define CURRENT_BITMASK …

struct pm860x_backlight_data { … };

static int backlight_power_set(struct pm860x_chip *chip, int port,
		int on)
{ … }

static int pm860x_backlight_set(struct backlight_device *bl, int brightness)
{ … }

static int pm860x_backlight_update_status(struct backlight_device *bl)
{ … }

static int pm860x_backlight_get_brightness(struct backlight_device *bl)
{ … }

static const struct backlight_ops pm860x_backlight_ops = …;

#ifdef CONFIG_OF
static int pm860x_backlight_dt_init(struct platform_device *pdev,
				    struct pm860x_backlight_data *data,
				    char *name)
{ … }
#else
#define pm860x_backlight_dt_init …
#endif

static int pm860x_backlight_probe(struct platform_device *pdev)
{ … }

static struct platform_driver pm860x_backlight_driver = …;

module_platform_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…) …;