Thread (9 messages) 9 messages, 3 authors, 2026-02-26
STALE131d
Revisions (2)
  1. v1 current
  2. v2 [diff vs current]

[PATCH 2/3] arm64: dts: allwinner: sun55i-a523: Add LED controller

From: Chen-Yu Tsai <wens@kernel.org>
Date: 2026-02-25 16:08:38
Also in: linux-devicetree, linux-leds, linux-sunxi, lkml
Subsystem: arm/allwinner sunxi soc support, the rest · Maintainers: Chen-Yu Tsai, Jernej Skrabec, Samuel Holland, Linus Torvalds

The A523 SoC family features an LED controller that is identical to the
one found on previous SoCs.

Add a device node for it, and one of the possible pinmux settings. This
setting is used on the Avaota A1.

Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
---
 .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index 09bd149bbf51..b8263e2872af 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -170,6 +170,13 @@ i2s2_pi_pins: i2s2-pi-pins {
 				bias-disable;
 			};
 
+			/omit-if-no-ref/
+			ledc_ph_pin: ledc-ph-pin {
+				pins = "PH19";
+				function = "ledc";
+				allwinner,pinmux = <5>;
+			};
+
 			mmc0_pins: mmc0-pins {
 				pins = "PF0" ,"PF1", "PF2", "PF3", "PF4", "PF5";
 				allwinner,pinmux = <2>;
@@ -300,6 +307,21 @@ ccu: clock-controller@2001000 {
 			#reset-cells = <1>;
 		};
 
+		ledc: led-controller@2008000 {
+			compatible = "allwinner,sun55i-a523-ledc",
+				     "allwinner,sun50i-a100-ledc";
+			reg = <0x02008000 0x400>;
+			interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_LEDC>, <&ccu CLK_LEDC>;
+			clock-names = "bus", "mod";
+			resets = <&ccu RST_BUS_LEDC>;
+			dmas = <&dma 42>;
+			dma-names = "tx";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		ths1: thermal-sensor@2009400 {
 			compatible = "allwinner,sun55i-a523-ths1";
 			reg = <0x02009400 0x400>;
-- 
2.47.3

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