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https://github.com/coolsnowwolf/lede.git
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65 lines
1.6 KiB
Diff
65 lines
1.6 KiB
Diff
From 470d9385f7c772c4cb88e0fdfa3484baba9d15c9 Mon Sep 17 00:00:00 2001
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From: Thomas Glanzmann <thomas@glanzmann.de>
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Date: Mon, 21 Feb 2022 23:01:36 +0100
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Subject: [PATCH 012/171] arm64: dts: apple: Add backlight node to j293/j313
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It can be turned off with:
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echo 1 > /sys/class/backlight/backlight/bl_power
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It can be turned on with:
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echo 0 > /sys/class/backlight/backlight/bl_power
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Needs CONFIG_BACKLIGHT_GPIO=m.
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Signed-off-by: Thomas Glanzmann <thomas@glanzmann.de>
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---
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arch/arm64/boot/dts/apple/t8103-j293.dts | 12 ++++++++++++
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arch/arm64/boot/dts/apple/t8103-j313.dts | 12 ++++++++++++
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2 files changed, 24 insertions(+)
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diff --git a/arch/arm64/boot/dts/apple/t8103-j293.dts b/arch/arm64/boot/dts/apple/t8103-j293.dts
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index 4f5f7d38e799..6f1050185a80 100644
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--- a/arch/arm64/boot/dts/apple/t8103-j293.dts
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+++ b/arch/arm64/boot/dts/apple/t8103-j293.dts
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@@ -75,3 +75,15 @@ &i2c2 {
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&i2c4 {
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status = "okay";
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};
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+
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+/ {
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+ backlight: gpio-bl {
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+ compatible = "gpio-backlight";
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+ gpios = <&smc_gpio 18 GPIO_ACTIVE_HIGH>;
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+ default-on;
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+ };
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+};
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+
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+&framebuffer0 {
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+ backlight = <&backlight>;
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+};
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diff --git a/arch/arm64/boot/dts/apple/t8103-j313.dts b/arch/arm64/boot/dts/apple/t8103-j313.dts
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index d6722d8809d1..3e4045c05905 100644
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--- a/arch/arm64/boot/dts/apple/t8103-j313.dts
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+++ b/arch/arm64/boot/dts/apple/t8103-j313.dts
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@@ -67,3 +67,15 @@ &pcie0_dart_2 {
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/delete-node/ &port01;
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/delete-node/ &port02;
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+
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+/ {
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+ backlight: gpio-bl {
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+ compatible = "gpio-backlight";
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+ gpios = <&smc_gpio 18 GPIO_ACTIVE_HIGH>;
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+ default-on;
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+ };
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+};
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+
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+&framebuffer0 {
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+ backlight = <&backlight>;
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+};
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--
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2.34.1
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