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/kernel/linux/linux-5.10/drivers/video/backlight/
Dktd253-backlight.c3 * Backlight driver for the Kinetic KTD253
38 static void ktd253_backlight_set_max_ratio(struct ktd253_backlight *ktd253) in ktd253_backlight_set_max_ratio() argument
40 gpiod_set_value_cansleep(ktd253->gpiod, 1); in ktd253_backlight_set_max_ratio()
45 static int ktd253_backlight_stepdown(struct ktd253_backlight *ktd253) in ktd253_backlight_stepdown() argument
63 gpiod_set_value(ktd253->gpiod, 0); in ktd253_backlight_stepdown()
65 gpiod_set_value(ktd253->gpiod, 1); in ktd253_backlight_stepdown()
68 dev_err(ktd253->dev, "PCM on backlight took too long (%llu ns)\n", ns); in ktd253_backlight_stepdown()
77 struct ktd253_backlight *ktd253 = bl_get_data(bl); in ktd253_backlight_update_status() local
80 u16 current_ratio = ktd253->ratio; in ktd253_backlight_update_status()
83 dev_dbg(ktd253->dev, "new brightness/ratio: %d/32\n", brightness); in ktd253_backlight_update_status()
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DMakefile38 obj-$(CONFIG_BACKLIGHT_KTD253) += ktd253-backlight.o
DKconfig186 tristate "Backlight Driver for Kinetic KTD253"
189 Say y to enabled the backlight driver for the Kinetic KTD253
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/leds/backlight/
Dkinetic,ktd253.yaml4 $id: http://devicetree.org/schemas/leds/backlight/kinetic,ktd253.yaml#
7 title: Kinetic Technologies KTD253 one-wire backlight
13 The Kinetic Technologies KTD253 is a white LED backlight that is
24 const: kinetic,ktd253
43 compatible = "kinetic,ktd253";
/kernel/linux/linux-5.10/arch/arm/boot/dts/
Dste-ux500-samsung-skomer.dts111 ktd253: backlight { label
112 compatible = "kinetic,ktd253";
409 backlight = <&ktd253>;
/kernel/linux/linux-5.10/
DMAINTAINERS9813 KTD253 BACKLIGHT DRIVER
9816 F: Documentation/devicetree/bindings/leds/backlight/kinetic,ktd253.yaml
9817 F: drivers/video/backlight/ktd253-backlight.c