[PATCH 1/4] arm64: dts: allwinner: add 'chassis-type' property

From: Arnaud Ferraris
Date: Sat Oct 16 2021 - 06:20:44 EST


A new 'chassis-type' root node property has recently been approved for
the device-tree specification, in order to provide a simple way for
userspace to detect the device form factor and adjust their behavior
accordingly.

This patch fills in this property for end-user devices (such as laptops,
smartphones and tablets) based on Allwinner ARM64 processors.

Signed-off-by: Arnaud Ferraris <arnaud.ferraris@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts | 1 +
arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi | 2 ++
arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts | 1 +
arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts | 1 +
4 files changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
index 34e67f5f8297..63571df24da4 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
@@ -15,6 +15,7 @@
/ {
model = "Pinebook";
compatible = "pine64,pinebook", "allwinner,sun50i-a64";
+ chassis-type = "laptop";

aliases {
serial0 = &uart0;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
index 5b44a979f250..87847116ab6d 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
@@ -12,6 +12,8 @@
#include <dt-bindings/pwm/pwm.h>

/ {
+ chassis-type = "handset";
+
aliases {
ethernet0 = &rtl8723cs;
serial0 = &uart0;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts
index 6a4af14718f5..6303cd2fc398 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts
@@ -16,6 +16,7 @@
/ {
model = "PineTab, Development Sample";
compatible = "pine64,pinetab", "allwinner,sun50i-a64";
+ chassis-type = "tablet";

aliases {
serial0 = &uart0;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts
index aef571acd67f..aff0660b899c 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts
@@ -14,6 +14,7 @@
/ {
model = "Olimex A64 Teres-I";
compatible = "olimex,a64-teres-i", "allwinner,sun50i-a64";
+ chassis-type = "laptop";

aliases {
serial0 = &uart0;
--
2.33.0