| /linux/Documentation/devicetree/bindings/mfd/ |
| H A D | ti-lmu.txt | 6 ------ ---------------------------------
7 LM3631 Backlight and regulator
8 LM3632 Backlight and regulator
9 LM3633 Backlight, LED and fault monitor
10 LM3695 Backlight
11 LM36274 Backlight and regulator
14 - compatible: Should be one of:
20 - reg: I2C slave address.
28 - enable-gpios: A GPIO specifier for hardware enable pin.
29 - ramp-up-us: Current ramping from one brightness level to
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| H A D | mediatek,mt6370.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
13 MT6370 is a highly-integrated smart power management IC, which includes a
14 single cell Li-Ion/Li-Polymer switching battery charger, a USB Type-C &
15 Power Delivery (PD) controller, dual flash LED current sources, a RGB LED
16 driver, a backlight WLED driver, a display bias driver and a general LDO for
26 wakeup-source: true
31 interrupt-controller: true
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| /linux/Documentation/devicetree/bindings/leds/backlight/ |
| H A D | led-backlight.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/led-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: led-backlight
10 - Lee Jones <lee@kernel.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
15 This binding is used to describe a basic backlight device made of LEDs. It
16 can also be used to describe a backlight device controlled by the output of
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| H A D | kinetic,ktz8866.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/kinetic,ktz8866.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Kinetic Technologies KTZ8866 backlight
10 - Jianhua Lu <lujianhua000@gmail.com>
13 The Kinetic Technologies KTZ8866 is a high efficiency 6-channels-current-sinks
14 led backlight with dual lcd bias power.
15 https://www.kinet-ic.com/ktz8866/
18 - $ref: common.yaml#
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| H A D | lm3630a-backlight.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/lm3630a-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TI LM3630A High-Efficiency Dual-String White LED
10 - Lee Jones <lee@kernel.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
15 The LM3630A is a current-mode boost converter which supplies the power and
26 '#address-cells':
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| H A D | common.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/common.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Common backlight properties
10 - Lee Jones <lee@kernel.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
15 Backlight devices provide backlight for different types of graphical
17 LED powered by a boost converter.
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| H A D | ti,lm3509.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/ti,lm3509.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TI LM3509 High Efficiency Boost for White LED's and/or OLED Displays
10 - Patrick Gansterer <paroga@paroga.com>
23 "#address-cells":
26 "#size-cells":
29 reset-gpios:
32 ti,brightness-rate-of-change-us:
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| H A D | arcxcnn_bl.txt | 1 Binding for ArcticSand arc2c0608 LED driver
4 - compatible: should be "arc,arc2c0608"
5 - reg: slave address
8 - default-brightness: brightness value on boot, value from: 0-4095
9 - label: The name of the backlight device
11 - led-sources: List of enabled channels from 0 to 5.
14 - arc,led-config-0: setting for register ILED_CONFIG_0
15 - arc,led-config-1: setting for register ILED_CONFIG_1
16 - arc,dim-freq: PWM mode frequence setting (bits [3:0] used)
17 - arc,comp-config: setting for register CONFIG_COMP
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| H A D | sky81452-backlight.txt | 1 SKY81452-backlight bindings
4 - compatible : Must be "skyworks,sky81452-backlight"
7 - name : Name of backlight device. Default is 'lcd-backlight'.
8 - gpios : GPIO to use to EN pin.
10 - led-sources : List of enabled channels from 0 to 5.
12 - skyworks,ignore-pwm : Ignore both PWM input
13 - skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
14 - skyworks,phase-shift : Enable phase shift mode
15 - skyworks,short-detection-threshold-volt
17 - skyworks,current-limit-mA
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| H A D | richtek,rt4831-backlight.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/richtek,rt4831-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Richtek RT4831 Backlight
10 - ChiYuan Huang <cy_huang@richtek.com>
14 and LCD backlight.
16 For the LCD backlight, it can provide four channel WLED driving capability.
20 https://www.richtek.com/assets/product_file/RT4831A/DS4831A-05.pdf
23 - $ref: common.yaml#
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| /linux/Documentation/devicetree/bindings/leds/ |
| H A D | leds-lm36274.txt | 1 * Texas Instruments LM36274 4-Channel LCD Backlight Driver w/Integrated Bias
3 The LM36274 is an integrated four-channel WLED driver and LCD bias supply.
4 The backlight boost provides the power to bias four parallel LED strings with
5 up to 29V total output voltage. The 11-bit LED current is programmable via
9 Documentation/devicetree/bindings/mfd/ti-lmu.txt
12 Documentation/devicetree/bindings/regulator/lm363x-regulator.txt
14 Required backlight properties:
15 - compatible:
16 "ti,lm36274-backlight"
17 - reg : 0
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| H A D | leds-lm3697.txt | 1 * Texas Instruments - LM3697 Highly Efficient White LED Driver
3 The LM3697 11-bit LED driver provides high-
4 performance backlight dimming for 1, 2, or 3 series
5 LED strings while delivering up to 90% efficiency.
10 - compatible:
12 - reg : I2C slave address
13 - #address-cells : 1
14 - #size-cells : 0
17 - enable-gpios : GPIO pin to enable/disable the device
18 - vled-supply : LED supply
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| H A D | leds-lm3532.txt | 1 * Texas Instruments - lm3532 White LED driver with ambient light sensing
4 The LM3532 provides the 3 high-voltage, low-side current sinks. The device is
5 programmable over an I2C-compatible interface and has independent
7 method allows for different LED currents in each current sink thus allowing
8 for a wide variety of backlight and keypad applications.
11 each with 32 internal voltage setting resistors, 8-bit logarithmic and linear
16 - compatible : "ti,lm3532"
17 - reg : I2C slave address
18 - #address-cells : 1
19 - #size-cells : 0
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| /linux/drivers/hid/ |
| H A D | hid-corsair.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * - Vengeance K70 Keyboard
7 * - K70 RAPIDFIRE Keyboard
8 * - Vengeance K90 Keyboard
9 * - Scimitar PRO RGB Gaming Mouse
24 #include "hid-ids.h"
43 struct k90_led *backlight; member
52 return usage - 0xd0 + 1; in corsair_usage_to_gkey()
55 return usage - 0xe8 + 17; in corsair_usage_to_gkey()
81 MODULE_PARM_DESC(gkey_codes, "Key codes for the G-keys");
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| /linux/drivers/leds/trigger/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "LED Trigger support"
13 tristate "LED Timer Trigger"
16 via sysfs. Some LED hardware can be programmed to start
17 blinking the LED without any further software interaction.
18 For more details read Documentation/leds/leds-class.rst.
23 tristate "LED One-shot Trigger"
25 This allows LEDs to blink in one-shot pulses with parameters
28 or on dense events, where this blinks the LED at constant rate if
36 bool "LED Disk Trigger"
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| H A D | ledtrig-backlight.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Backlight emulation LED trigger
21 struct led_classdev *led; member
33 struct led_classdev *led = n->led; in fb_notifier_callback() local
42 blank = fb_event->data; in fb_notifier_callback()
45 if (new_status == n->old_status) in fb_notifier_callback()
48 if ((n->old_status == UNBLANK) ^ n->invert) { in fb_notifier_callback()
49 n->brightness = led->brightness; in fb_notifier_callback()
50 led_set_brightness_nosleep(led, LED_OFF); in fb_notifier_callback()
52 led_set_brightness_nosleep(led, n->brightness); in fb_notifier_callback()
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| /linux/drivers/video/backlight/ |
| H A D | adp8860_bl.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Backlight driver for Analog Devices ADP8860 Backlight Devices
5 * Copyright 2009-2010 Analog Devices Inc.
15 #include <linux/backlight.h>
29 #define ADP8860_BLSEN 0x05 /* Sink enable backlight or independent */
30 #define ADP8860_BLOFF 0x06 /* Backlight off timeout */
31 #define ADP8860_BLDIM 0x07 /* Backlight dim timeout */
32 #define ADP8860_BLFR 0x08 /* Backlight fade in and out rates */
33 #define ADP8860_BLMX1 0x09 /* Backlight (Brightness Level 1-daylight) maximum current */
34 #define ADP8860_BLDM1 0x0A /* Backlight (Brightness Level 1-daylight) dim current */
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| H A D | adp8870_bl.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Backlight driver for Analog Devices ADP8870 Backlight Devices
5 * Copyright 2009-2011 Analog Devices Inc.
15 #include <linux/backlight.h>
30 #define ADP8870_BLSEL 0x05 /* Sink enable backlight or independent */
32 #define ADP8870_BLOFF 0x07 /* Backlight off timeout */
33 #define ADP8870_BLDIM 0x08 /* Backlight dim timeout */
34 #define ADP8870_BLFR 0x09 /* Backlight fade in and out rates */
35 #define ADP8870_BLMX1 0x0A /* Backlight (Brightness Level 1-daylight) maximum current */
36 #define ADP8870_BLDM1 0x0B /* Backlight (Brightness Level 1-daylight) dim current */
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| H A D | led_bl.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2015-2019 Texas Instruments Incorporated - http://www.ti.com/
9 #include <linux/backlight.h>
30 if (priv->levels) in led_bl_set_brightness()
31 bkl_brightness = priv->levels[level]; in led_bl_set_brightness()
35 for (i = 0; i < priv->nb_leds; i++) in led_bl_set_brightness()
36 led_set_brightness(priv->leds[i], bkl_brightness); in led_bl_set_brightness()
38 priv->enabled = true; in led_bl_set_brightness()
45 if (!priv->enabled) in led_bl_power_off()
48 for (i = 0; i < priv->nb_leds; i++) in led_bl_power_off()
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| /linux/Documentation/devicetree/bindings/chrome/ |
| H A D | google,cros-kbd-led-backlight.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/chrome/google,cros-kbd-led-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ChromeOS keyboard backlight LED driver.
10 - Tzung-Bi Shih <tzungbi@kernel.org>
14 const: google,cros-kbd-led-backlight
17 - compatible
22 - |
24 #address-cells = <1>;
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| /linux/arch/arm/boot/dts/ti/omap/ |
| H A D | omap4-xyboard-mz609.dts | 1 // SPDX-License-Identifier: GPL-2.0-only
2 /dts-v1/;
4 #include "motorola-mapphone-mz607-mz617.dtsi"
8 compatible = "motorola,xyboard-mz609", "ti,omap4430", "ti,omap4";
11 stdout-path = &uart3;
18 backlight: backlight { label
19 compatible = "led-backlight";
22 brightness-levels = <31 63 95 127 159 191 223 255>;
23 default-brightness-level = <6>;
28 led-controller@38 {
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| /linux/arch/arm/boot/dts/st/ |
| H A D | stm32mp157c-lxa-tac-gen2.dts | 1 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)
3 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
8 /dts-v1/;
11 #include "stm32mp15xc-lxa-tac.dtsi"
15 compatible = "lxa,stm32mp157c-tac-gen2", "oct,stm32mp15xx-osd32", "st,stm32mp157";
17 backlight: backlight { label
18 compatible = "pwm-backlight";
19 power-supply = <&v3v3>;
21 brightness-levels = <0 31 63 95 127 159 191 223 255>;
22 default-brightness-level = <7>;
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| H A D | stm32mp157c-lxa-mc1.dts | 1 /* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */
3 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
7 /dts-v1/;
10 #include "stm32mp15xx-osd32.dtsi"
11 #include "stm32mp15xxac-pinctrl.dtsi"
13 #include <dt-bindings/gpio/gpio.h>
14 #include <dt-bindings/pwm/pwm.h>
17 model = "Linux Automation MC-1 board";
18 compatible = "lxa,stm32mp157c-mc1", "oct,stm32mp15xx-osd32", "st,stm32mp157";
27 backlight: backlight { label
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| /linux/Documentation/leds/ |
| H A D | well-known-leds.txt | 1 -*- org -*-
4 userland. LED devices have one problem there, and that is naming of
6 just know right "name" for given LED function, but situation got more
17 Notice there's a list of functions in include/dt-bindings/leds/common.h .
24 player. For example, a game controller with 4 LEDs, may be programmed with "x---"
25 to indicate player 1, "-x--" to indicate player 2 etcetera where "x" means on.
26 Input drivers can utilize the LED class to expose the individual player LEDs
31 Good: "input*:*:player-{1,2,3,4,5}
38 Legacy: "shift-key-light" (Motorola Droid 4, capslock)
45 Frontlight/backlight of main keyboard.
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| /linux/drivers/gpu/drm/panel/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
17 Y030XX067A 320x480 3.0" panel as found in the YLM RG-280M, RG-300
18 and RG-99 handheld gaming consoles.
46 as found in the YLM RS-97 handheld gaming console.
49 tristate "Boe BF060Y8M-AJ0 panel"
54 Say Y here if you want to enable support for Boe BF060Y8M-AJ0
57 the host and backlight is controlled through DSI commands.
66 TFT-LCD modules. The panel has a 1200x1920 resolution and uses
68 the host and has a built-in LED backlight.
71 tristate "Boe TH101MB31UIG002-28A panel"
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