linux-kernel - [PATCH] arm64: dts: rockchip: Add a few aliases to the PineTab2 dtsi

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Message-Id: <987e68d1c5e9a0cc56d730aec87246aa5ab8ea14.1725535770.git.dsimic@manjaro.org>
Date: Thu,  5 Sep 2024 13:32:19 +0200
From: Dragan Simic <dsimic@...jaro.org>
To: linux-rockchip@...ts.infradead.org
Cc: heiko@...ech.de,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	linux-kernel@...r.kernel.org,
	Diederik de Haas <didi.debian@...ow.org>
Subject: [PATCH] arm64: dts: rockchip: Add a few aliases to the PineTab2 dtsi

Sprinkle a few commonly used aliases onto the PineTab2 dtsi file, to improve
its readability a bit, to make it easier to refer to the actual nodes later,
if needed, and to add a bit more detail to some of the labels.

No functional changes are introduced, which was validated by decompiling and
comparing all affected board dtb files before and after these changes.  When
compared with the decompiled original dtb files, some of the phandles in the
updated dtb files have different values, and the updated dtb files contain
some additional phandles and additional symbols that come from the introduced
aliases, but they still effectively remain the same as the originals.

Suggested-by: Diederik de Haas <didi.debian@...ow.org>
Signed-off-by: Dragan Simic <dsimic@...jaro.org>
---

Notes:
    This patch wasn't tested on a PineTab2 before it was submitted to the
    mailing list, because I don't have that device, but Diederik has already
    agreed to test this patch on his PineTab2 and provide feedback.

 arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi
index db40281eafbe..04d98715ae6e 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi
@@ -41,7 +41,7 @@ button-vol-down {
 		};
 	};
 
-	backlight: backlight {
+	backlight: backlight-dsi {
 		compatible = "pwm-backlight";
 		pwms = <&pwm4 0 25000 0>;
 		brightness-levels = <20 220>;
@@ -551,20 +551,20 @@ regulator-state-mem {
 			};
 		};
 
-		charger {
+		rk817_charger: charger {
 			monitored-battery = <&battery>;
 			rockchip,resistor-sense-micro-ohms = <10000>;
 			rockchip,sleep-enter-current-microamp = <300000>;
 			rockchip,sleep-filter-current-microamp = <100000>;
 		};
 	};
 };
 
 &i2c1 {
 	clock-frequency = <400000>;
 	status = "okay";
 
-	touchscreen@5d {
+	touchscreen: touchscreen@5d {
 		compatible = "goodix,gt911";
 		reg = <0x5d>;
 		interrupt-parent = <&gpio0>;
@@ -583,13 +583,13 @@ &i2c2 {
 	pinctrl-0 = <&i2c2m1_xfer>;
 	status = "okay";
 
-	vcm@c {
+	vcm: vcm@c {
 		compatible = "dongwoon,dw9714";
 		reg = <0x0c>;
 		vcc-supply = <&vcc1v8_dvp>;
 	};
 
-	camera@36 {
+	camerab: camera@36 {
 		compatible = "ovti,ov5648";
 		reg = <0x36>;
 		pinctrl-names = "default";
@@ -619,7 +619,7 @@ &i2c5 {
 	clock-frequency = <400000>;
 	status = "okay";
 
-	accelerometer@18 {
+	accelerometer: accelerometer@18 {
 		compatible = "silan,sc7a20";
 		reg = <0x18>;
 		interrupt-parent = <&gpio3>;