[openwrt/openwrt] realtek: add sys-led disable pinctrl for rtl930x

[LEDE Commits]

svanheule pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/cd7a225d28494478c2d588d23b0021167bba1bad

commit cd7a225d28494478c2d588d23b0021167bba1bad
Author: Sander Vanheule <sander at svanheule.net>
AuthorDate: Fri Nov 26 22:16:02 2021 +0100

    realtek: add sys-led disable pinctrl for rtl930x
    
    Like for RTL838x devices, add a pinctrl-single node to manage the
    sys-led/gpio0 mux, and allow using the pin as GPIO.
    
    Co-developed-by: INAGAKI Hiroshi <musashino.open at gmail.com>
    Signed-off-by: INAGAKI Hiroshi <musashino.open at gmail.com>
    Signed-off-by: Sander Vanheule <sander at svanheule.net>
---
 target/linux/realtek/dts-5.10/rtl930x.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/target/linux/realtek/dts-5.10/rtl930x.dtsi b/target/linux/realtek/dts-5.10/rtl930x.dtsi
index bfde5e6ff6..c2a992a174 100644
--- a/target/linux/realtek/dts-5.10/rtl930x.dtsi
+++ b/target/linux/realtek/dts-5.10/rtl930x.dtsi
@@ -135,6 +135,21 @@
 
 	};
 
+	pinmux_led: pinmux at 1b00cc00 {
+		compatible = "pinctrl-single";
+		reg = <0x1b00cc00 0x4>;
+
+		pinctrl-single,bit-per-mux;
+		pinctrl-single,register-width = <32>;
+		pinctrl-single,function-mask = <0x1>;
+		#pinctrl-cells = <2>;
+
+		/* enable GPIO 0 */
+		pinmux_disable_sys_led: disable_sys_led {
+			pinctrl-single,bits = <0x0 0x0 0x1000>;
+		};
+	};
+
 	ethernet0: ethernet at 1b00a300 {
 		compatible = "realtek,rtl838x-eth";
 		reg = <0x1b00a300 0x100>;