| Message ID | 20190209104018.6765-1-harald@ccbib.org (mailing list archive) |
|---|---|
| State | Mainlined, archived |
| Commit | 24bd5d2cb93bc282e3c15e4d10fcd3210192f954 |
| Headers | show |
| Series | [PATCHv4] arm64: dts: allwinner: a64: teres-i: enable backlight | expand |
On Sat, Feb 09, 2019 at 10:40:18AM +0000, Harald Geyer wrote: > Enable pwm and add a pretty standard backlight node. > > The regulator is always on, but we include it anyway, because it is > required by the binding document. > > Signed-off-by: Harald Geyer <harald@ccbib.org> Applied, thanks! Maxime
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts index 7b7b14ba58e6..0ec46b969a75 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts @@ -21,6 +21,15 @@ serial0 = &uart0; }; + backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 50000 0>; + power-supply = <®_dcdc1>; + brightness-levels = <0 5 7 10 14 20 28 40 56 80 112>; + default-brightness-level = <5>; + enable-gpios = <&pio 3 23 GPIO_ACTIVE_HIGH>; /* PD23 */ + }; + chosen { stdout-path = "serial0:115200n8"; @@ -131,6 +140,10 @@ status = "okay"; }; +&pwm { + status = "okay"; +}; + &r_rsb { status = "okay";
Enable pwm and add a pretty standard backlight node. The regulator is always on, but we include it anyway, because it is required by the binding document. Signed-off-by: Harald Geyer <harald@ccbib.org> --- Changes since v3: * Adjust brightness-levels to follow closer to an exponential law * Change default value to have a similar brightness to what we had before. Changes since v2: * Drop all the other stuff that got merged a year ago. * Rebased on current sunxi/for-next branch * Add power-supply property (just to conform to the binding) * Use slightly different brightness-levels Actually I tried omitting brightness-levels completely, as it is now optional. However automatic calculation gives unreasonable results (depending on the exact value of pwm period). A report has been sent to the author of the code. .../arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+)