From 8f4c834d89150e9b1c6c3e006668ed6fd9ee2b15 Mon Sep 17 00:00:00 2001
From: Tomasz Maciej Nowak <tmn505@gmail.com>
Date: Thu, 22 Aug 2024 20:41:02 +0200
Subject: [PATCH] ARM: tegra: Wire up two front panel LEDs on TrimSlice

Pins responsible for controlling these LEDs need to have tristate
control removed if we want them as GPIOs. This change aligns with
pinmux configuration of "dte" pin group in downstream kernel[1].
These LEDs had no function assigned on vendor kernel and there is no
label on the case, the only markings are on PCB which are part of node
names (ds1 marking is on power LED controlled by PMIC), so generic term
is assigned as the function.

1. https://github.com/compulab/trimslice-android-kernel/blob/upstream/arch/arm/mach-tegra/board-trimslice-pinmux.c#L45

Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 .../arm/boot/dts/nvidia/tegra20-trimslice.dts | 30 +++++++++++++++----
 1 file changed, 25 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boot/dts/nvidia/tegra20-trimslice.dts b/arch/arm/boot/dts/nvidia/tegra20-trimslice.dts
index 7cae6ad57544..4caeeb9f1e1d 100644
--- a/arch/arm/boot/dts/nvidia/tegra20-trimslice.dts
+++ b/arch/arm/boot/dts/nvidia/tegra20-trimslice.dts
@@ -2,6 +2,7 @@
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
 #include "tegra20.dtsi"
 #include "tegra20-cpu-opp.dtsi"
 
@@ -201,16 +202,17 @@
 			conf_ata {
 				nvidia,pins = "ata", "atc", "atd", "ate",
 					"crtp", "dap2", "dap3", "dap4", "dta",
-					"dtb", "dtc", "dtd", "dte", "gmb",
-					"gme", "i2cp", "pta", "slxc", "slxd",
-					"spdi", "spdo", "uda";
+					"dtb", "dtc", "dtd", "gmb", "gme",
+					"i2cp", "pta", "slxc", "slxd", "spdi",
+					"spdo", "uda";
 				nvidia,pull = <TEGRA_PIN_PULL_NONE>;
 				nvidia,tristate = <TEGRA_PIN_ENABLE>;
 			};
 			conf_atb {
 				nvidia,pins = "atb", "cdev1", "cdev2", "dap1",
-					"gma", "gmc", "gmd", "gpu", "gpu7",
-					"gpv", "sdio1", "slxa", "slxk", "uac";
+					"dte", "gma", "gmc", "gmd", "gpu",
+					"gpu7", "gpv", "sdio1", "slxa", "slxk",
+					"uac";
 				nvidia,pull = <TEGRA_PIN_PULL_NONE>;
 				nvidia,tristate = <TEGRA_PIN_DISABLE>;
 			};
@@ -408,6 +410,24 @@
 		};
 	};
 
+	leds {
+		compatible = "gpio-leds";
+
+		led-ds2 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_INDICATOR;
+			function-enumerator = <2>;
+			gpios = <&gpio TEGRA_GPIO(D, 2) GPIO_ACTIVE_LOW>;
+		};
+
+		led-ds3 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_INDICATOR;
+			function-enumerator = <3>;
+			gpios = <&gpio TEGRA_GPIO(BB, 5) GPIO_ACTIVE_LOW>;
+		};
+	};
+
 	poweroff {
 		compatible = "gpio-poweroff";
 		gpios = <&gpio TEGRA_GPIO(X, 7) GPIO_ACTIVE_LOW>;
-- 
2.50.1