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Searched +full:rt4831 +full:- +full:backlight (Results 1 – 4 of 4) sorted by relevance

/linux/Documentation/devicetree/bindings/leds/backlight/
H A Drichtek,rt4831-backlight.yaml1 # 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>
13 RT4831 is a mutifunctional device that can provide power to the LCD display
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
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/linux/drivers/mfd/
H A Drt4831.c1 // SPDX-License-Identifier: GPL-2.0+
25 MFD_CELL_OF("rt4831-backlight", NULL, NULL, 0, 0, "richtek,rt4831-backlight"),
26 MFD_CELL_NAME("rt4831-regulator")
52 enable_gpio = devm_gpiod_get_optional(&client->dev, "enable", GPIOD_OUT_HIGH); in rt4831_probe()
54 dev_err(&client->dev, "Failed to get 'enable' GPIO\n"); in rt4831_probe()
60 dev_err(&client->dev, "Failed to initialize regmap\n"); in rt4831_probe()
66 dev_err(&client->dev, "Failed to get H/W revision\n"); in rt4831_probe()
71 dev_err(&client->dev, "Chip vendor ID 0x%02x not matched\n", chip_id); in rt4831_probe()
72 return -ENODEV; in rt4831_probe()
82 dev_err(&client->dev, "Failed to enable I2C safety timer\n"); in rt4831_probe()
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/linux/Documentation/devicetree/bindings/regulator/
H A Drichtek,rt4831-regulator.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/regulator/richtek,rt4831-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Richtek RT4831 Display Bias Voltage Regulator
10 - ChiYuan Huang <cy_huang@richtek.com>
13 RT4831 is a multifunctional device that can provide power to the LCD display
14 and LCD backlight.
23 efficiency worse. It's a trade-off.
26 https://www.richtek.com/assets/product_file/RT4831A/DS4831A-05.pdf
/linux/include/dt-bindings/leds/
H A Drt4831-backlight.h1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
3 * This header provides constants for rt4831 backlight bindings.
21 #define RT4831_BLED_ALLCHEN ((1 << 4) - 1)