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/linux/Documentation/devicetree/bindings/leds/
H A Dleds-trigger-pattern.txt8 1. For gradual dimming, the dimming interval now is set as 50 milliseconds. So
9 the tuple with duration less than dimming interval (50ms) is treated as a step
11 adding intervening dimming intervals.
13 The gradual dimming format of the software pattern values should be:
H A Dnxp,pca953x.yaml13 The PCA9532 family is SMBus I/O expander optimized for dimming LEDs.
H A Dawinic,aw200xx.yaml15 for auto breathing or group dimming control. Supported devices:
H A Dleds-lm3532.txt13 1000:1 dimming ratio with programmable fade in and fade out settings.
/linux/drivers/video/backlight/
H A Dmp3309c.c5 * This driver support both analog (by I2C commands) and PWM dimming control
167 * Dimming mode I2C command (fixed dimming range 0..31) in mp3309c_bl_update_status()
169 * The 5 bits of the dimming analog value D4..D0 is allocated in mp3309c_bl_update_status()
210 * Dimming mode: the MP3309C provides two dimming control mode: in mp3309c_parse_fwnode()
227 * In I2C control mode the dimming levels (0..31) are fixed by the in mp3309c_parse_fwnode()
238 /* Enable GPIO used in I2C dimming mode only */ in mp3309c_parse_fwnode()
367 /* In PWM dimming mode, enable pwm device */ in mp3309c_probe()
/linux/Documentation/devicetree/bindings/leds/backlight/
H A Dmps,mp3309c.yaml15 It supports two different dimming modes:
17 - analog mode, via I2C commands, as default mode (32 dimming levels)
38 description: GPIO used to enable the backlight in "analog-i2c" dimming mode.
H A Dsky81452-backlight.txt13 - skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
H A Drichtek,rt4831-backlight.yaml39 Specify the backlight dimming following by PWM duty or by SW control.
H A Dmediatek,mt6370-backlight.yaml41 Enable external PWM input for backlight dimming
/linux/drivers/leds/trigger/
H A Dledtrig-pattern.c20 * When doing gradual dimming, the led brightness will be updated
66 * If current tuple's duration is less than the dimming interval, in pattern_trig_compute_brightness()
68 * doing gradual dimming. in pattern_trig_compute_brightness()
127 /* Gradual dimming */ in pattern_trig_timer_common_function()
143 /* Accumulate the gradual dimming time */ in pattern_trig_timer_common_function()
/linux/drivers/leds/
H A Dleds-ti-lmu-common.c29 * 11 bit dimming: update LSB bits and write MSB byte. in ti_lmu_common_update_brightness()
31 * 8 bit dimming: write MSB byte. in ti_lmu_common_update_brightness()
/linux/Documentation/leds/
H A Dleds-mt6370-rgb.rst15 PWM Dimming mode, breath pattern mode, and constant current mode. The device
/linux/drivers/video/fbdev/aty/
H A Dradeon_backlight.c56 /* We turn off the LCD completely instead of just dimming the in radeon_bl_update_status()