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Merge pull request #1491 from piter75/rock-pi-4-bring-leds-back

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Bring back the LEDs to Rock Pi 4
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Tony 2019-08-04 16:23:01 -04:00 • committed by GitHub
commit f0400a21c7
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patch/kernel/rockchip64-dev/board-rockpi4-dts-leds.patch Normal file
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@ -0,0 +1,55 @@
While mainlining Rock Pi 4 its leds were probably overlooked in the dts.
Power led is not usable in currently available board revisions <= 1.4
and is disabled in dts to not confuse users who would like to fiddle with it.
It could possibly be made controllable by its gpio with the help
of soldering iron, steady hands, patience (SMD0402) and additional overlay
to enable the led and its gpio pin in device tree.
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
index e03062715..a97e02bc0 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
@@ -111,6 +111,25 @@
regulator-max-microvolt = <1400000>;
vin-supply = <&vcc5v0_sys>;
};
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&power_led_gpio>, <&status_led_gpio>;
+
+ power-status {
+ label = "power";
+ gpios = <&gpio3 RK_PD4 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "default-on";
+ status = "disabled";
+ };
+
+ system-status {
+ label = "status";
+ gpios = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
};
&cpu_l0 {
@@ -457,6 +476,16 @@
};
};
+ leds {
+ power_led_gpio: power_led_gpio {
+ rockchip,pins = <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ status_led_gpio: status_led_gpio {
+ rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
pmic {
pmic_int_l: pmic-int-l {
rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;