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/openbmc/linux/Documentation/devicetree/bindings/leds/backlight/
H A Dmediatek,mt6370-backlight.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/mediatek,mt6370-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiaEn Wu <chiaen_wu@richtek.com>
21 - $ref: common.yaml#
26 - mediatek,mt6370-backlight
27 - mediatek,mt6372-backlight
29 default-brightness:
32 max-brightness:
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/openbmc/linux/drivers/video/backlight/
H A Dmt6370-backlight.c1 // SPDX-License-Identifier: GPL-2.0-only
82 brightness_val[0] = (brightness - 1) & priv->dim2_mask; in mt6370_bl_update_status()
83 brightness_val[1] = (brightness - 1) >> priv->dim2_shift; in mt6370_bl_update_status()
85 ret = regmap_raw_write(priv->regmap, MT6370_REG_BL_DIM2, in mt6370_bl_update_status()
91 gpiod_set_value(priv->enable_gpio, !!brightness); in mt6370_bl_update_status()
94 return regmap_update_bits(priv->regmap, MT6370_REG_BL_EN, in mt6370_bl_update_status()
105 ret = regmap_read(priv->regmap, MT6370_REG_BL_EN, &enable); in mt6370_bl_get_brightness()
112 ret = regmap_raw_read(priv->regmap, MT6370_REG_BL_DIM2, in mt6370_bl_get_brightness()
117 brightness = brightness_val[1] << priv->dim2_shift; in mt6370_bl_get_brightness()
118 brightness += brightness_val[0] & priv->dim2_mask; in mt6370_bl_get_brightness()
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/openbmc/linux/Documentation/devicetree/bindings/mfd/
H A Drichtek,rt4831.yaml1 # 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>
23 https://www.richtek.com/assets/product_file/RT4831A/DS4831A-05.pdf
33 enable-gpios:
40 $ref: ../regulator/richtek,rt4831-regulator.yaml
43 $ref: ../leds/backlight/richtek,rt4831-backlight.yaml
46 - compatible
47 - reg
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