| Message ID | 20250216092827.15444-9-ryan@testtoast.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | arm64: dts: allwinner: h616: add LCD timing controller and display engine support | expand |
Tested on RG355XX-H Tested-by: Philippe Simons <simons.philippe@gmail.com> On 16/02/2025 10:27, Ryan Walklin wrote: > The LCD backlight for this device can be exposed as a simple GPIO- > controlled device. It would be more accurately modelled using PWM to > enable brightness control, however the PWM driver design for the H616 is > not yet upstreamed. > > Add a GPIO backlight node to the DTS. > > Signed-off-by: Ryan Walklin <ryan@testtoast.com> > --- > .../boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts > index 388487d4720e2..29d1144fc3987 100644 > --- a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts > @@ -21,6 +21,12 @@ aliases { > serial0 = &uart0; > }; > > + backlight: backlight { > + compatible = "gpio-backlight"; > + gpios = <&pio 3 28 GPIO_ACTIVE_HIGH>; // PD28 > + default-on; > + }; > + > battery: battery { > compatible = "simple-battery"; > constant-charge-current-max-microamp = <1024000>;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts index 388487d4720e2..29d1144fc3987 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts @@ -21,6 +21,12 @@ aliases { serial0 = &uart0; }; + backlight: backlight { + compatible = "gpio-backlight"; + gpios = <&pio 3 28 GPIO_ACTIVE_HIGH>; // PD28 + default-on; + }; + battery: battery { compatible = "simple-battery"; constant-charge-current-max-microamp = <1024000>;
The LCD backlight for this device can be exposed as a simple GPIO- controlled device. It would be more accurately modelled using PWM to enable brightness control, however the PWM driver design for the H616 is not yet upstreamed. Add a GPIO backlight node to the DTS. Signed-off-by: Ryan Walklin <ryan@testtoast.com> --- .../boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts | 6 ++++++ 1 file changed, 6 insertions(+)