56 lines
1.5 KiB
Diff
56 lines
1.5 KiB
Diff
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While mainlining Rock Pi 4 its leds were probably overlooked in the dts.
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Power led is not usable in currently available board revisions <= 1.4
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and is disabled in dts to not confuse users who would like to fiddle with it.
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It could possibly be made controllable by its gpio with the help
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of soldering iron, steady hands, patience (SMD0402) and additional overlay
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to enable the led and its gpio pin in device tree.
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diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
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index e03062715..a97e02bc0 100644
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--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
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+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
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@@ -111,6 +111,25 @@
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regulator-max-microvolt = <1400000>;
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vin-supply = <&vcc5v0_sys>;
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};
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+
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+ leds {
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+ compatible = "gpio-leds";
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&power_led_gpio>, <&status_led_gpio>;
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+
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+ power-status {
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+ label = "power";
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+ gpios = <&gpio3 RK_PD4 GPIO_ACTIVE_HIGH>;
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+ linux,default-trigger = "default-on";
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+ status = "disabled";
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+ };
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+
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+ system-status {
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+ label = "status";
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+ gpios = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>;
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+ linux,default-trigger = "heartbeat";
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+ };
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+ };
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};
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&cpu_l0 {
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@@ -457,6 +476,16 @@
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};
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};
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+ leds {
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+ power_led_gpio: power_led_gpio {
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+ rockchip,pins = <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
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+ };
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+
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+ status_led_gpio: status_led_gpio {
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+ rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
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+ };
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+ };
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+
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pmic {
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pmic_int_l: pmic-int-l {
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rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
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