// SPDX-License-Identifier: GPL-2.0-or-later /* * Backlight driver for Analog Devices ADP8860 Backlight Devices * * Copyright 2009-2010 Analog Devices Inc. */ #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/pm.h> #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/fb.h> #include <linux/backlight.h> #include <linux/leds.h> #include <linux/slab.h> #include <linux/workqueue.h> #include <linux/platform_data/adp8860.h> #define ADP8860_EXT_FEATURES #define ADP8860_USE_LEDS #define ADP8860_MFDVID … #define ADP8860_MDCR … #define ADP8860_MDCR2 … #define ADP8860_INTR_EN … #define ADP8860_CFGR … #define ADP8860_BLSEN … #define ADP8860_BLOFF … #define ADP8860_BLDIM … #define ADP8860_BLFR … #define ADP8860_BLMX1 … #define ADP8860_BLDM1 … #define ADP8860_BLMX2 … #define ADP8860_BLDM2 … #define ADP8860_BLMX3 … #define ADP8860_BLDM3 … #define ADP8860_ISCFR … #define ADP8860_ISCC … #define ADP8860_ISCT1 … #define ADP8860_ISCT2 … #define ADP8860_ISCF … #define ADP8860_ISC7 … #define ADP8860_ISC6 … #define ADP8860_ISC5 … #define ADP8860_ISC4 … #define ADP8860_ISC3 … #define ADP8860_ISC2 … #define ADP8860_ISC1 … #define ADP8860_CCFG … #define ADP8860_CCFG2 … #define ADP8860_L2_TRP … #define ADP8860_L2_HYS … #define ADP8860_L3_TRP … #define ADP8860_L3_HYS … #define ADP8860_PH1LEVL … #define ADP8860_PH1LEVH … #define ADP8860_PH2LEVL … #define ADP8860_PH2LEVH … #define ADP8860_MANUFID … #define ADP8861_MANUFID … #define ADP8863_MANUFID … #define ADP8860_DEVID(x) … #define ADP8860_MANID(x) … /* MDCR Device mode and status */ #define INT_CFG … #define NSTBY … #define DIM_EN … #define GDWN_DIS … #define SIS_EN … #define CMP_AUTOEN … #define BLEN … /* ADP8860_CCFG Main ALS comparator level enable */ #define L3_EN … #define L2_EN … #define CFGR_BLV_SHIFT … #define CFGR_BLV_MASK … #define ADP8860_FLAG_LED_MASK … #define FADE_VAL(in, out) … #define BL_CFGR_VAL(law, blv) … #define ALS_CCFG_VAL(filt) … enum { … }; struct adp8860_led { … }; struct adp8860_bl { … }; static int adp8860_read(struct i2c_client *client, int reg, uint8_t *val) { … } static int adp8860_write(struct i2c_client *client, u8 reg, u8 val) { … } static int adp8860_set_bits(struct i2c_client *client, int reg, uint8_t bit_mask) { … } static int adp8860_clr_bits(struct i2c_client *client, int reg, uint8_t bit_mask) { … } /* * Independent sink / LED */ #if defined(ADP8860_USE_LEDS) static void adp8860_led_work(struct work_struct *work) { … } static void adp8860_led_set(struct led_classdev *led_cdev, enum led_brightness value) { … } static int adp8860_led_setup(struct adp8860_led *led) { … } static int adp8860_led_probe(struct i2c_client *client) { … } static int adp8860_led_remove(struct i2c_client *client) { … } #else static int adp8860_led_probe(struct i2c_client *client) { return 0; } static int adp8860_led_remove(struct i2c_client *client) { return 0; } #endif static int adp8860_bl_set(struct backlight_device *bl, int brightness) { … } static int adp8860_bl_update_status(struct backlight_device *bl) { … } static int adp8860_bl_get_brightness(struct backlight_device *bl) { … } static const struct backlight_ops adp8860_bl_ops = …; static int adp8860_bl_setup(struct backlight_device *bl) { … } static ssize_t adp8860_show(struct device *dev, char *buf, int reg) { … } static ssize_t adp8860_store(struct device *dev, const char *buf, size_t count, int reg) { … } static ssize_t adp8860_bl_l3_dark_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8860_bl_l3_dark_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l3_dark_max, 0664, adp8860_bl_l3_dark_max_show, adp8860_bl_l3_dark_max_store); static ssize_t adp8860_bl_l2_office_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8860_bl_l2_office_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l2_office_max, 0664, adp8860_bl_l2_office_max_show, adp8860_bl_l2_office_max_store); static ssize_t adp8860_bl_l1_daylight_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8860_bl_l1_daylight_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l1_daylight_max, 0664, adp8860_bl_l1_daylight_max_show, adp8860_bl_l1_daylight_max_store); static ssize_t adp8860_bl_l3_dark_dim_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8860_bl_l3_dark_dim_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l3_dark_dim, 0664, adp8860_bl_l3_dark_dim_show, adp8860_bl_l3_dark_dim_store); static ssize_t adp8860_bl_l2_office_dim_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8860_bl_l2_office_dim_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l2_office_dim, 0664, adp8860_bl_l2_office_dim_show, adp8860_bl_l2_office_dim_store); static ssize_t adp8860_bl_l1_daylight_dim_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8860_bl_l1_daylight_dim_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l1_daylight_dim, 0664, adp8860_bl_l1_daylight_dim_show, adp8860_bl_l1_daylight_dim_store); #ifdef ADP8860_EXT_FEATURES static ssize_t adp8860_bl_ambient_light_level_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR(ambient_light_level, 0444, adp8860_bl_ambient_light_level_show, NULL); static ssize_t adp8860_bl_ambient_light_zone_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8860_bl_ambient_light_zone_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(ambient_light_zone, 0664, adp8860_bl_ambient_light_zone_show, adp8860_bl_ambient_light_zone_store); #endif static struct attribute *adp8860_bl_attributes[] = …; static const struct attribute_group adp8860_bl_attr_group = …; static int adp8860_probe(struct i2c_client *client) { … } static void adp8860_remove(struct i2c_client *client) { … } #ifdef CONFIG_PM_SLEEP static int adp8860_i2c_suspend(struct device *dev) { … } static int adp8860_i2c_resume(struct device *dev) { … } #endif static SIMPLE_DEV_PM_OPS(adp8860_i2c_pm_ops, adp8860_i2c_suspend, adp8860_i2c_resume); static const struct i2c_device_id adp8860_id[] = …; MODULE_DEVICE_TABLE(i2c, adp8860_id); static struct i2c_driver adp8860_driver = …; module_i2c_driver(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …;
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