[PATCH 17/17] arm64: dts: exynosautov9: add specific compatibles to several blocks

Krzysztof Kozlowski
2023-11-08T10:48:04Z

ExynosAutov9 reuses several devices from older designs, thus historically
we kept the old (block's) compatible only. This works fine and there is
no bug here, however guidelines expressed in
Documentation/devicetree/bindings/writing-bindings.rst state that:
1. Compatibles should be specific.
2. We should add new compatibles in case of bugs or features.

Add compatibles specific to ExynosAutov9 in front of all old-SoC-like
compatibles. This will also help reviews of new code using existing
DTS as template. No functional impact on Linux drivers behavior.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
arch/arm64/boot/dts/exynos/exynosautov9.dtsi | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
index b228cd7e351e..417aa56a81f6 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
@@ -166,7 +166,8 @@ soc: soc@0 {
ranges = <0x0 0x0 0x0 0x20000000>;

chipid@10000000 {
- compatible = "samsung,exynos850-chipid";
+ compatible = "samsung,exynosautov9-chipid",
+ "samsung,exynos850-chipid";
reg = <0x10000000 0x24>;
};

@@ -349,7 +350,8 @@ pinctrl_peric1: pinctrl@10830000 {
};

pmu_system_controller: system-controller@10460000 {
- compatible = "samsung,exynos7-pmu", "syscon";
+ compatible = "samsung,exynosautov9-pmu",
+ "samsung,exynos7-pmu", "syscon";
reg = <0x10460000 0x10000>;

reboot: syscon-reboot {
--
2.34.1