arm64: dts: rockchip: add LED for ROCK Pi 4A/B/C/A+/B+

only user_led2 (blue) is supported.

user_led1 (green) is not connected to any gpio so it cannot be
controlled.

Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Link: https://lore.kernel.org/r/20220908031726.1307105-1-naoki@radxa.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
index 401e1ae9d94432c19b5c271fec9329c3a695cd05..6464a6729729754e907e32173bd57f3d08d24853 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
@@ -6,6 +6,7 @@
 
 /dts-v1/;
 #include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/leds/common.h>
 #include <dt-bindings/pwm/pwm.h>
 #include "rk3399.dtsi"
 #include "rk3399-opp.dtsi"
@@ -27,6 +28,20 @@
                #clock-cells = <0>;
        };
 
+       leds {
+               compatible = "gpio-leds";
+               pinctrl-names = "default";
+               pinctrl-0 = <&user_led2>;
+
+               /* USER_LED2 */
+               led-0 {
+                       function = LED_FUNCTION_STATUS;
+                       color = <LED_COLOR_ID_BLUE>;
+                       gpios = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger = "heartbeat";
+               };
+       };
+
        sdio_pwrseq: sdio-pwrseq {
                compatible = "mmc-pwrseq-simple";
                clocks = <&rk808 1>;
@@ -553,6 +568,12 @@
                };
        };
 
+       leds {
+               user_led2: user-led2 {
+                       rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
        pcie {
                pcie_pwr_en: pcie-pwr-en {
                        rockchip,pins = <2 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;