// SPDX-License-Identifier: GPL-2.0-or-later /* * Backlight driver for Analog Devices ADP8870 Backlight Devices * * Copyright 2009-2011 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/workqueue.h> #include <linux/slab.h> #include <linux/platform_data/adp8870.h> #define ADP8870_EXT_FEATURES #define ADP8870_USE_LEDS #define ADP8870_MFDVID … #define ADP8870_MDCR … #define ADP8870_INT_STAT … #define ADP8870_INT_EN … #define ADP8870_CFGR … #define ADP8870_BLSEL … #define ADP8870_PWMLED … #define ADP8870_BLOFF … #define ADP8870_BLDIM … #define ADP8870_BLFR … #define ADP8870_BLMX1 … #define ADP8870_BLDM1 … #define ADP8870_BLMX2 … #define ADP8870_BLDM2 … #define ADP8870_BLMX3 … #define ADP8870_BLDM3 … #define ADP8870_BLMX4 … #define ADP8870_BLDM4 … #define ADP8870_BLMX5 … #define ADP8870_BLDM5 … #define ADP8870_ISCLAW … #define ADP8870_ISCC … #define ADP8870_ISCT1 … #define ADP8870_ISCT2 … #define ADP8870_ISCF … #define ADP8870_ISC1 … #define ADP8870_ISC2 … #define ADP8870_ISC3 … #define ADP8870_ISC4 … #define ADP8870_ISC5 … #define ADP8870_ISC6 … #define ADP8870_ISC7 … #define ADP8870_ISC7_L2 … #define ADP8870_ISC7_L3 … #define ADP8870_ISC7_L4 … #define ADP8870_ISC7_L5 … #define ADP8870_CMP_CTL … #define ADP8870_ALS1_EN … #define ADP8870_ALS2_EN … #define ADP8870_ALS1_STAT … #define ADP8870_ALS2_STAT … #define ADP8870_L2TRP … #define ADP8870_L2HYS … #define ADP8870_L3TRP … #define ADP8870_L3HYS … #define ADP8870_L4TRP … #define ADP8870_L4HYS … #define ADP8870_L5TRP … #define ADP8870_L5HYS … #define ADP8870_PH1LEVL … #define ADP8870_PH1LEVH … #define ADP8870_PH2LEVL … #define ADP8870_PH2LEVH … #define ADP8870_MANUFID … #define ADP8870_DEVID(x) … #define ADP8870_MANID(x) … /* MDCR Device mode and status */ #define D7ALSEN … #define INT_CFG … #define NSTBY … #define DIM_EN … #define GDWN_DIS … #define SIS_EN … #define CMP_AUTOEN … #define BLEN … /* ADP8870_ALS1_EN Main ALS comparator level enable */ #define L5_EN … #define L4_EN … #define L3_EN … #define L2_EN … #define CFGR_BLV_SHIFT … #define CFGR_BLV_MASK … #define ADP8870_FLAG_LED_MASK … #define FADE_VAL(in, out) … #define BL_CFGR_VAL(law, blv) … #define ALS_CMPR_CFG_VAL(filt) … struct adp8870_bl { … }; struct adp8870_led { … }; static int adp8870_read(struct i2c_client *client, int reg, uint8_t *val) { … } static int adp8870_write(struct i2c_client *client, u8 reg, u8 val) { … } static int adp8870_set_bits(struct i2c_client *client, int reg, uint8_t bit_mask) { … } static int adp8870_clr_bits(struct i2c_client *client, int reg, uint8_t bit_mask) { … } /* * Independent sink / LED */ #if defined(ADP8870_USE_LEDS) static void adp8870_led_work(struct work_struct *work) { … } static void adp8870_led_set(struct led_classdev *led_cdev, enum led_brightness value) { … } static int adp8870_led_setup(struct adp8870_led *led) { … } static int adp8870_led_probe(struct i2c_client *client) { … } static int adp8870_led_remove(struct i2c_client *client) { … } #else static int adp8870_led_probe(struct i2c_client *client) { return 0; } static int adp8870_led_remove(struct i2c_client *client) { return 0; } #endif static int adp8870_bl_set(struct backlight_device *bl, int brightness) { … } static int adp8870_bl_update_status(struct backlight_device *bl) { … } static int adp8870_bl_get_brightness(struct backlight_device *bl) { … } static const struct backlight_ops adp8870_bl_ops = …; static int adp8870_bl_setup(struct backlight_device *bl) { … } static ssize_t adp8870_show(struct device *dev, char *buf, int reg) { … } static ssize_t adp8870_store(struct device *dev, const char *buf, size_t count, int reg) { … } static ssize_t adp8870_bl_l5_dark_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_bl_l5_dark_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l5_dark_max, 0664, adp8870_bl_l5_dark_max_show, adp8870_bl_l5_dark_max_store); static ssize_t adp8870_bl_l4_indoor_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_bl_l4_indoor_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l4_indoor_max, 0664, adp8870_bl_l4_indoor_max_show, adp8870_bl_l4_indoor_max_store); static ssize_t adp8870_bl_l3_office_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_bl_l3_office_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l3_office_max, 0664, adp8870_bl_l3_office_max_show, adp8870_bl_l3_office_max_store); static ssize_t adp8870_bl_l2_bright_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_bl_l2_bright_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l2_bright_max, 0664, adp8870_bl_l2_bright_max_show, adp8870_bl_l2_bright_max_store); static ssize_t adp8870_bl_l1_daylight_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_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, adp8870_bl_l1_daylight_max_show, adp8870_bl_l1_daylight_max_store); static ssize_t adp8870_bl_l5_dark_dim_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_bl_l5_dark_dim_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l5_dark_dim, 0664, adp8870_bl_l5_dark_dim_show, adp8870_bl_l5_dark_dim_store); static ssize_t adp8870_bl_l4_indoor_dim_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_bl_l4_indoor_dim_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l4_indoor_dim, 0664, adp8870_bl_l4_indoor_dim_show, adp8870_bl_l4_indoor_dim_store); static ssize_t adp8870_bl_l3_office_dim_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_bl_l3_office_dim_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l3_office_dim, 0664, adp8870_bl_l3_office_dim_show, adp8870_bl_l3_office_dim_store); static ssize_t adp8870_bl_l2_bright_dim_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_bl_l2_bright_dim_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(l2_bright_dim, 0664, adp8870_bl_l2_bright_dim_show, adp8870_bl_l2_bright_dim_store); static ssize_t adp8870_bl_l1_daylight_dim_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_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, adp8870_bl_l1_daylight_dim_show, adp8870_bl_l1_daylight_dim_store); #ifdef ADP8870_EXT_FEATURES static ssize_t adp8870_bl_ambient_light_level_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR(ambient_light_level, 0444, adp8870_bl_ambient_light_level_show, NULL); static ssize_t adp8870_bl_ambient_light_zone_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adp8870_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, adp8870_bl_ambient_light_zone_show, adp8870_bl_ambient_light_zone_store); #endif static struct attribute *adp8870_bl_attributes[] = …; static const struct attribute_group adp8870_bl_attr_group = …; static int adp8870_probe(struct i2c_client *client) { … } static void adp8870_remove(struct i2c_client *client) { … } #ifdef CONFIG_PM_SLEEP static int adp8870_i2c_suspend(struct device *dev) { … } static int adp8870_i2c_resume(struct device *dev) { … } #endif static SIMPLE_DEV_PM_OPS(adp8870_i2c_pm_ops, adp8870_i2c_suspend, adp8870_i2c_resume); static const struct i2c_device_id adp8870_id[] = …; MODULE_DEVICE_TABLE(i2c, adp8870_id); static struct i2c_driver adp8870_driver = …; module_i2c_driver(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …;
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