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Message-Id: <20230722121719.150094-1-krzysztof.kozlowski@linaro.org>
Date: Sat, 22 Jul 2023 14:17:17 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Alim Akhtar <alim.akhtar@...sung.com>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 1/3] ARM: dts: samsung: exynos4x12: replace duplicate pmu node with phandle
Devicetree for the FIMC IS camera included duplicated PMU node as its
child. This is not a correct representation of the hardware. Mapping
the PMU (Power Management Unit) IO memory should be via syscon-like
phandle (samsung,pmu-syscon, already used for other drivers), not by
duplicating "pmu" Devicetree node inside the FIMC IS.
The change is not compatible with older Linux kernel, which does not
parse samsung,pmu-syscon property.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
Changes in v2:
1. None
Depends on:
https://lore.kernel.org/linux-devicetree/20230722115441.139628-1-krzysztof.kozlowski@linaro.org/T/#t
---
arch/arm/boot/dts/samsung/exynos4x12.dtsi | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/samsung/exynos4x12.dtsi b/arch/arm/boot/dts/samsung/exynos4x12.dtsi
index 84c1db221c98..4524c1e6bb2f 100644
--- a/arch/arm/boot/dts/samsung/exynos4x12.dtsi
+++ b/arch/arm/boot/dts/samsung/exynos4x12.dtsi
@@ -516,15 +516,12 @@ fimc_is: fimc-is@...00000 {
iommus = <&sysmmu_fimc_isp>, <&sysmmu_fimc_drc>,
<&sysmmu_fimc_fd>, <&sysmmu_fimc_mcuctl>;
iommu-names = "isp", "drc", "fd", "mcuctl";
+ samsung,pmu-syscon = <&pmu_system_controller>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
status = "disabled";
- pmu@...20000 {
- reg = <0x10020000 0x3000>;
- };
-
i2c1_isp: i2c-isp@...40000 {
compatible = "samsung,exynos4212-i2c-isp";
reg = <0x12140000 0x100>;
--
2.34.1
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