linux/drivers/video/backlight/lp8788_bl.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * TI LP8788 MFD - backlight driver
 *
 * Copyright 2012 Texas Instruments
 *
 * Author: Milo(Woogyom) Kim <[email protected]>
 */

#include <linux/backlight.h>
#include <linux/err.h>
#include <linux/mfd/lp8788.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>

/* Register address */
#define LP8788_BL_CONFIG …
#define LP8788_BL_EN …
#define LP8788_BL_PWM_INPUT_EN …
#define LP8788_BL_FULLSCALE_SHIFT …
#define LP8788_BL_DIM_MODE_SHIFT …
#define LP8788_BL_PWM_POLARITY_SHIFT …

#define LP8788_BL_BRIGHTNESS …

#define LP8788_BL_RAMP …
#define LP8788_BL_RAMP_RISE_SHIFT …

#define MAX_BRIGHTNESS …
#define DEFAULT_BL_NAME …

struct lp8788_bl { … };

static int lp8788_backlight_configure(struct lp8788_bl *bl)
{ … }

static int lp8788_bl_update_status(struct backlight_device *bl_dev)
{ … }

static const struct backlight_ops lp8788_bl_ops = …;

static int lp8788_backlight_register(struct lp8788_bl *bl)
{ … }

static void lp8788_backlight_unregister(struct lp8788_bl *bl)
{ … }

static ssize_t lp8788_get_bl_ctl_mode(struct device *dev,
				     struct device_attribute *attr, char *buf)
{ … }

static DEVICE_ATTR(bl_ctl_mode, S_IRUGO, lp8788_get_bl_ctl_mode, NULL);

static struct attribute *lp8788_attributes[] = …;

static const struct attribute_group lp8788_attr_group = …;

static int lp8788_backlight_probe(struct platform_device *pdev)
{ … }

static void lp8788_backlight_remove(struct platform_device *pdev)
{ … }

static struct platform_driver lp8788_bl_driver = …;
module_platform_driver(…) …;

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