^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Backlight driver for Analog Devices ADP8860 Backlight Devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2009-2010 Analog Devices Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/pm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/fb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/backlight.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/leds.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/platform_data/adp8860.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define ADP8860_EXT_FEATURES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define ADP8860_USE_LEDS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define ADP8860_MFDVID 0x00 /* Manufacturer and device ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define ADP8860_MDCR 0x01 /* Device mode and status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define ADP8860_MDCR2 0x02 /* Device mode and Status Register 2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define ADP8860_INTR_EN 0x03 /* Interrupts enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define ADP8860_CFGR 0x04 /* Configuration register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define ADP8860_BLSEN 0x05 /* Sink enable backlight or independent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define ADP8860_BLOFF 0x06 /* Backlight off timeout */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define ADP8860_BLDIM 0x07 /* Backlight dim timeout */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define ADP8860_BLFR 0x08 /* Backlight fade in and out rates */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define ADP8860_BLMX1 0x09 /* Backlight (Brightness Level 1-daylight) maximum current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define ADP8860_BLDM1 0x0A /* Backlight (Brightness Level 1-daylight) dim current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define ADP8860_BLMX2 0x0B /* Backlight (Brightness Level 2-office) maximum current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define ADP8860_BLDM2 0x0C /* Backlight (Brightness Level 2-office) dim current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define ADP8860_BLMX3 0x0D /* Backlight (Brightness Level 3-dark) maximum current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define ADP8860_BLDM3 0x0E /* Backlight (Brightness Level 3-dark) dim current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define ADP8860_ISCFR 0x0F /* Independent sink current fade control register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define ADP8860_ISCC 0x10 /* Independent sink current control register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define ADP8860_ISCT1 0x11 /* Independent Sink Current Timer Register LED[7:5] */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define ADP8860_ISCT2 0x12 /* Independent Sink Current Timer Register LED[4:1] */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define ADP8860_ISCF 0x13 /* Independent sink current fade register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define ADP8860_ISC7 0x14 /* Independent Sink Current LED7 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define ADP8860_ISC6 0x15 /* Independent Sink Current LED6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define ADP8860_ISC5 0x16 /* Independent Sink Current LED5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define ADP8860_ISC4 0x17 /* Independent Sink Current LED4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define ADP8860_ISC3 0x18 /* Independent Sink Current LED3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define ADP8860_ISC2 0x19 /* Independent Sink Current LED2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define ADP8860_ISC1 0x1A /* Independent Sink Current LED1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define ADP8860_CCFG 0x1B /* Comparator configuration */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define ADP8860_CCFG2 0x1C /* Second comparator configuration */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define ADP8860_L2_TRP 0x1D /* L2 comparator reference */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define ADP8860_L2_HYS 0x1E /* L2 hysteresis */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define ADP8860_L3_TRP 0x1F /* L3 comparator reference */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define ADP8860_L3_HYS 0x20 /* L3 hysteresis */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define ADP8860_PH1LEVL 0x21 /* First phototransistor ambient light level-low byte register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define ADP8860_PH1LEVH 0x22 /* First phototransistor ambient light level-high byte register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define ADP8860_PH2LEVL 0x23 /* Second phototransistor ambient light level-low byte register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define ADP8860_PH2LEVH 0x24 /* Second phototransistor ambient light level-high byte register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define ADP8860_MANUFID 0x0 /* Analog Devices ADP8860 Manufacturer ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define ADP8861_MANUFID 0x4 /* Analog Devices ADP8861 Manufacturer ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define ADP8863_MANUFID 0x2 /* Analog Devices ADP8863 Manufacturer ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define ADP8860_DEVID(x) ((x) & 0xF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define ADP8860_MANID(x) ((x) >> 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /* MDCR Device mode and status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define INT_CFG (1 << 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define NSTBY (1 << 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #define DIM_EN (1 << 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define GDWN_DIS (1 << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define SIS_EN (1 << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define CMP_AUTOEN (1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #define BLEN (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* ADP8860_CCFG Main ALS comparator level enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define L3_EN (1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #define L2_EN (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define CFGR_BLV_SHIFT 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define CFGR_BLV_MASK 0x3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #define ADP8860_FLAG_LED_MASK 0xFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #define FADE_VAL(in, out) ((0xF & (in)) | ((0xF & (out)) << 4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define BL_CFGR_VAL(law, blv) ((((blv) & CFGR_BLV_MASK) << CFGR_BLV_SHIFT) | ((0x3 & (law)) << 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define ALS_CCFG_VAL(filt) ((0x7 & filt) << 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) adp8860,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) adp8861,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) adp8863
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct adp8860_led {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct led_classdev cdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct work_struct work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) enum led_brightness new_brightness;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) int flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct adp8860_bl {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct backlight_device *bl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) struct adp8860_led *led;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) struct adp8860_backlight_platform_data *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) unsigned long cached_daylight_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) int revid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) int current_brightness;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) unsigned en_ambl_sens:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) unsigned gdwn_dis:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static int adp8860_read(struct i2c_client *client, int reg, uint8_t *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) ret = i2c_smbus_read_byte_data(client, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) dev_err(&client->dev, "failed reading at 0x%02x\n", reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) *val = (uint8_t)ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static int adp8860_write(struct i2c_client *client, u8 reg, u8 val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return i2c_smbus_write_byte_data(client, reg, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static int adp8860_set_bits(struct i2c_client *client, int reg, uint8_t bit_mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct adp8860_bl *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) uint8_t reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) mutex_lock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) ret = adp8860_read(client, reg, ®_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (!ret && ((reg_val & bit_mask) != bit_mask)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) reg_val |= bit_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) ret = adp8860_write(client, reg, reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) static int adp8860_clr_bits(struct i2c_client *client, int reg, uint8_t bit_mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct adp8860_bl *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) uint8_t reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) mutex_lock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) ret = adp8860_read(client, reg, ®_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (!ret && (reg_val & bit_mask)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) reg_val &= ~bit_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) ret = adp8860_write(client, reg, reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * Independent sink / LED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) #if defined(ADP8860_USE_LEDS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) static void adp8860_led_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) struct adp8860_led *led = container_of(work, struct adp8860_led, work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) adp8860_write(led->client, ADP8860_ISC1 - led->id + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) led->new_brightness >> 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) static void adp8860_led_set(struct led_classdev *led_cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) enum led_brightness value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) struct adp8860_led *led;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) led = container_of(led_cdev, struct adp8860_led, cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) led->new_brightness = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) schedule_work(&led->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) static int adp8860_led_setup(struct adp8860_led *led)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) struct i2c_client *client = led->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) ret = adp8860_write(client, ADP8860_ISC1 - led->id + 1, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) ret |= adp8860_set_bits(client, ADP8860_ISCC, 1 << (led->id - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) if (led->id > 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ret |= adp8860_set_bits(client, ADP8860_ISCT1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) (led->flags & 0x3) << ((led->id - 5) * 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) ret |= adp8860_set_bits(client, ADP8860_ISCT2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) (led->flags & 0x3) << ((led->id - 1) * 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static int adp8860_led_probe(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) struct adp8860_backlight_platform_data *pdata =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) dev_get_platdata(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) struct adp8860_bl *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct adp8860_led *led, *led_dat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct led_info *cur_led;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int ret, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) led = devm_kcalloc(&client->dev, pdata->num_leds, sizeof(*led),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (led == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) ret = adp8860_write(client, ADP8860_ISCFR, pdata->led_fade_law);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) ret = adp8860_write(client, ADP8860_ISCT1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) (pdata->led_on_time & 0x3) << 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) ret |= adp8860_write(client, ADP8860_ISCF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) FADE_VAL(pdata->led_fade_in, pdata->led_fade_out));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) dev_err(&client->dev, "failed to write\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) for (i = 0; i < pdata->num_leds; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) cur_led = &pdata->leds[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) led_dat = &led[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) led_dat->id = cur_led->flags & ADP8860_FLAG_LED_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (led_dat->id > 7 || led_dat->id < 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) dev_err(&client->dev, "Invalid LED ID %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) led_dat->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (pdata->bl_led_assign & (1 << (led_dat->id - 1))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) dev_err(&client->dev, "LED %d used by Backlight\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) led_dat->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) ret = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) led_dat->cdev.name = cur_led->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) led_dat->cdev.default_trigger = cur_led->default_trigger;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) led_dat->cdev.brightness_set = adp8860_led_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) led_dat->cdev.brightness = LED_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) led_dat->flags = cur_led->flags >> FLAG_OFFT_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) led_dat->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) led_dat->new_brightness = LED_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) INIT_WORK(&led_dat->work, adp8860_led_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) ret = led_classdev_register(&client->dev, &led_dat->cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) dev_err(&client->dev, "failed to register LED %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) led_dat->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) ret = adp8860_led_setup(led_dat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) dev_err(&client->dev, "failed to write\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) data->led = led;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) for (i = i - 1; i >= 0; --i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) led_classdev_unregister(&led[i].cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) cancel_work_sync(&led[i].work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) static int adp8860_led_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) struct adp8860_backlight_platform_data *pdata =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) dev_get_platdata(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) struct adp8860_bl *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) for (i = 0; i < pdata->num_leds; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) led_classdev_unregister(&data->led[i].cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) cancel_work_sync(&data->led[i].work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) static int adp8860_led_probe(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) static int adp8860_led_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) static int adp8860_bl_set(struct backlight_device *bl, int brightness)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct adp8860_bl *data = bl_get_data(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) if (data->en_ambl_sens) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) if ((brightness > 0) && (brightness < ADP8860_MAX_BRIGHTNESS)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) /* Disable Ambient Light auto adjust */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) ret |= adp8860_clr_bits(client, ADP8860_MDCR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) CMP_AUTOEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) ret |= adp8860_write(client, ADP8860_BLMX1, brightness);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) * MAX_BRIGHTNESS -> Enable Ambient Light auto adjust
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) * restore daylight l1 sysfs brightness
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ret |= adp8860_write(client, ADP8860_BLMX1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) data->cached_daylight_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) ret |= adp8860_set_bits(client, ADP8860_MDCR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) CMP_AUTOEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) ret |= adp8860_write(client, ADP8860_BLMX1, brightness);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (data->current_brightness && brightness == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) ret |= adp8860_set_bits(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) ADP8860_MDCR, DIM_EN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) else if (data->current_brightness == 0 && brightness)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) ret |= adp8860_clr_bits(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) ADP8860_MDCR, DIM_EN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) data->current_brightness = brightness;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) static int adp8860_bl_update_status(struct backlight_device *bl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) return adp8860_bl_set(bl, backlight_get_brightness(bl));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static int adp8860_bl_get_brightness(struct backlight_device *bl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) struct adp8860_bl *data = bl_get_data(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) return data->current_brightness;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) static const struct backlight_ops adp8860_bl_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) .update_status = adp8860_bl_update_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) .get_brightness = adp8860_bl_get_brightness,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) static int adp8860_bl_setup(struct backlight_device *bl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct adp8860_bl *data = bl_get_data(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) struct adp8860_backlight_platform_data *pdata = data->pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) ret |= adp8860_write(client, ADP8860_BLSEN, ~pdata->bl_led_assign);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) ret |= adp8860_write(client, ADP8860_BLMX1, pdata->l1_daylight_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) ret |= adp8860_write(client, ADP8860_BLDM1, pdata->l1_daylight_dim);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) if (data->en_ambl_sens) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) data->cached_daylight_max = pdata->l1_daylight_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) ret |= adp8860_write(client, ADP8860_BLMX2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) pdata->l2_office_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) ret |= adp8860_write(client, ADP8860_BLDM2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) pdata->l2_office_dim);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) ret |= adp8860_write(client, ADP8860_BLMX3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) pdata->l3_dark_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) ret |= adp8860_write(client, ADP8860_BLDM3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) pdata->l3_dark_dim);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) ret |= adp8860_write(client, ADP8860_L2_TRP, pdata->l2_trip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) ret |= adp8860_write(client, ADP8860_L2_HYS, pdata->l2_hyst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) ret |= adp8860_write(client, ADP8860_L3_TRP, pdata->l3_trip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) ret |= adp8860_write(client, ADP8860_L3_HYS, pdata->l3_hyst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) ret |= adp8860_write(client, ADP8860_CCFG, L2_EN | L3_EN |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) ALS_CCFG_VAL(pdata->abml_filt));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) ret |= adp8860_write(client, ADP8860_CFGR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) BL_CFGR_VAL(pdata->bl_fade_law, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) ret |= adp8860_write(client, ADP8860_BLFR, FADE_VAL(pdata->bl_fade_in,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) pdata->bl_fade_out));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) ret |= adp8860_set_bits(client, ADP8860_MDCR, BLEN | DIM_EN | NSTBY |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) (data->gdwn_dis ? GDWN_DIS : 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) static ssize_t adp8860_show(struct device *dev, char *buf, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) struct adp8860_bl *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) uint8_t reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) mutex_lock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) error = adp8860_read(data->client, reg, ®_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) return sprintf(buf, "%u\n", reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) static ssize_t adp8860_store(struct device *dev, const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) size_t count, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) struct adp8860_bl *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) ret = kstrtoul(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) mutex_lock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) adp8860_write(data->client, reg, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) static ssize_t adp8860_bl_l3_dark_max_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) return adp8860_show(dev, buf, ADP8860_BLMX3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) static ssize_t adp8860_bl_l3_dark_max_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) struct device_attribute *attr, const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return adp8860_store(dev, buf, count, ADP8860_BLMX3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) static DEVICE_ATTR(l3_dark_max, 0664, adp8860_bl_l3_dark_max_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) adp8860_bl_l3_dark_max_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) static ssize_t adp8860_bl_l2_office_max_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) return adp8860_show(dev, buf, ADP8860_BLMX2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) static ssize_t adp8860_bl_l2_office_max_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) struct device_attribute *attr, const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) return adp8860_store(dev, buf, count, ADP8860_BLMX2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) static DEVICE_ATTR(l2_office_max, 0664, adp8860_bl_l2_office_max_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) adp8860_bl_l2_office_max_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) static ssize_t adp8860_bl_l1_daylight_max_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return adp8860_show(dev, buf, ADP8860_BLMX1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) static ssize_t adp8860_bl_l1_daylight_max_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) struct device_attribute *attr, const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) struct adp8860_bl *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) int ret = kstrtoul(buf, 10, &data->cached_daylight_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) return adp8860_store(dev, buf, count, ADP8860_BLMX1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) static DEVICE_ATTR(l1_daylight_max, 0664, adp8860_bl_l1_daylight_max_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) adp8860_bl_l1_daylight_max_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) static ssize_t adp8860_bl_l3_dark_dim_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) return adp8860_show(dev, buf, ADP8860_BLDM3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) static ssize_t adp8860_bl_l3_dark_dim_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) return adp8860_store(dev, buf, count, ADP8860_BLDM3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) static DEVICE_ATTR(l3_dark_dim, 0664, adp8860_bl_l3_dark_dim_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) adp8860_bl_l3_dark_dim_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) static ssize_t adp8860_bl_l2_office_dim_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) return adp8860_show(dev, buf, ADP8860_BLDM2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) static ssize_t adp8860_bl_l2_office_dim_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) return adp8860_store(dev, buf, count, ADP8860_BLDM2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) static DEVICE_ATTR(l2_office_dim, 0664, adp8860_bl_l2_office_dim_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) adp8860_bl_l2_office_dim_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) static ssize_t adp8860_bl_l1_daylight_dim_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) return adp8860_show(dev, buf, ADP8860_BLDM1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) static ssize_t adp8860_bl_l1_daylight_dim_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) return adp8860_store(dev, buf, count, ADP8860_BLDM1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) static DEVICE_ATTR(l1_daylight_dim, 0664, adp8860_bl_l1_daylight_dim_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) adp8860_bl_l1_daylight_dim_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) #ifdef ADP8860_EXT_FEATURES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) static ssize_t adp8860_bl_ambient_light_level_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) struct adp8860_bl *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) uint8_t reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) uint16_t ret_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) mutex_lock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) error = adp8860_read(data->client, ADP8860_PH1LEVL, ®_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) if (!error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) ret_val = reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) error = adp8860_read(data->client, ADP8860_PH1LEVH, ®_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) /* Return 13-bit conversion value for the first light sensor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) ret_val += (reg_val & 0x1F) << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) return sprintf(buf, "%u\n", ret_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) static DEVICE_ATTR(ambient_light_level, 0444,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) adp8860_bl_ambient_light_level_show, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) static ssize_t adp8860_bl_ambient_light_zone_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) struct adp8860_bl *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) uint8_t reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) mutex_lock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) error = adp8860_read(data->client, ADP8860_CFGR, ®_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) return sprintf(buf, "%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) ((reg_val >> CFGR_BLV_SHIFT) & CFGR_BLV_MASK) + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) static ssize_t adp8860_bl_ambient_light_zone_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) struct adp8860_bl *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) uint8_t reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) ret = kstrtoul(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) if (val == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) /* Enable automatic ambient light sensing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) adp8860_set_bits(data->client, ADP8860_MDCR, CMP_AUTOEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) } else if ((val > 0) && (val <= 3)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) /* Disable automatic ambient light sensing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) adp8860_clr_bits(data->client, ADP8860_MDCR, CMP_AUTOEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) /* Set user supplied ambient light zone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) mutex_lock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) ret = adp8860_read(data->client, ADP8860_CFGR, ®_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) reg_val &= ~(CFGR_BLV_MASK << CFGR_BLV_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) reg_val |= (val - 1) << CFGR_BLV_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) adp8860_write(data->client, ADP8860_CFGR, reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) mutex_unlock(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) static DEVICE_ATTR(ambient_light_zone, 0664,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) adp8860_bl_ambient_light_zone_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) adp8860_bl_ambient_light_zone_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) static struct attribute *adp8860_bl_attributes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) &dev_attr_l3_dark_max.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) &dev_attr_l3_dark_dim.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) &dev_attr_l2_office_max.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) &dev_attr_l2_office_dim.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) &dev_attr_l1_daylight_max.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) &dev_attr_l1_daylight_dim.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) #ifdef ADP8860_EXT_FEATURES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) &dev_attr_ambient_light_level.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) &dev_attr_ambient_light_zone.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) static const struct attribute_group adp8860_bl_attr_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) .attrs = adp8860_bl_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) static int adp8860_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) struct backlight_device *bl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) struct adp8860_bl *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) struct adp8860_backlight_platform_data *pdata =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) dev_get_platdata(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) struct backlight_properties props;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) uint8_t reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) if (!i2c_check_functionality(client->adapter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) I2C_FUNC_SMBUS_BYTE_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) if (!pdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) dev_err(&client->dev, "no platform data?\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) if (data == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) ret = adp8860_read(client, ADP8860_MFDVID, ®_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) switch (ADP8860_MANID(reg_val)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) case ADP8863_MANUFID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) data->gdwn_dis = !!pdata->gdwn_dis;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) case ADP8860_MANUFID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) data->en_ambl_sens = !!pdata->en_ambl_sens;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) case ADP8861_MANUFID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) data->gdwn_dis = !!pdata->gdwn_dis;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) dev_err(&client->dev, "failed to probe\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) /* It's confirmed that the DEVID field is actually a REVID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) data->revid = ADP8860_DEVID(reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) data->pdata = pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) data->id = id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) data->current_brightness = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) i2c_set_clientdata(client, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) memset(&props, 0, sizeof(props));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) props.type = BACKLIGHT_RAW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) props.max_brightness = ADP8860_MAX_BRIGHTNESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) mutex_init(&data->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) bl = devm_backlight_device_register(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) dev_driver_string(&client->dev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) &client->dev, data, &adp8860_bl_ops, &props);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) if (IS_ERR(bl)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) dev_err(&client->dev, "failed to register backlight\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) return PTR_ERR(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) bl->props.brightness = ADP8860_MAX_BRIGHTNESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) data->bl = bl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) if (data->en_ambl_sens)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) ret = sysfs_create_group(&bl->dev.kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) &adp8860_bl_attr_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) dev_err(&client->dev, "failed to register sysfs\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) ret = adp8860_bl_setup(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) backlight_update_status(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) dev_info(&client->dev, "%s Rev.%d Backlight\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) client->name, data->revid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) if (pdata->num_leds)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) adp8860_led_probe(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) if (data->en_ambl_sens)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) sysfs_remove_group(&data->bl->dev.kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) &adp8860_bl_attr_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) static int adp8860_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) struct adp8860_bl *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) adp8860_clr_bits(client, ADP8860_MDCR, NSTBY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) if (data->led)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) adp8860_led_remove(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) if (data->en_ambl_sens)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) sysfs_remove_group(&data->bl->dev.kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) &adp8860_bl_attr_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) static int adp8860_i2c_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) adp8860_clr_bits(client, ADP8860_MDCR, NSTBY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) static int adp8860_i2c_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) adp8860_set_bits(client, ADP8860_MDCR, NSTBY | BLEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) static SIMPLE_DEV_PM_OPS(adp8860_i2c_pm_ops, adp8860_i2c_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) adp8860_i2c_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) static const struct i2c_device_id adp8860_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) { "adp8860", adp8860 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) { "adp8861", adp8861 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) { "adp8863", adp8863 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) MODULE_DEVICE_TABLE(i2c, adp8860_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) static struct i2c_driver adp8860_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) .name = KBUILD_MODNAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) .pm = &adp8860_i2c_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) .probe = adp8860_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) .remove = adp8860_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) .id_table = adp8860_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) module_i2c_driver(adp8860_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) MODULE_DESCRIPTION("ADP8860 Backlight driver");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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