Re: [PATCHv4 1/4] ARM: dts: exynos4: add PMU syscon node

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Hi Chanho,

When testing some other patches with this series applied I found one
more issue. Please see below.

On 02.05.2014 06:26, Chanho Park wrote:
> This patch adds a PMU(Power Management Unit) syscon node. This
> should be required for USB Phy syscon regmap I/F.
> 
> Cc: Kamil Debski <k.debski@xxxxxxxxxxx>
> Signed-off-by: Chanho Park <chanho61.park@xxxxxxxxxxx>
> Reviewed-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/arm/samsung/pmu.txt | 3 +++
>  arch/arm/boot/dts/exynos4.dtsi                        | 5 +++++
>  arch/arm/boot/dts/exynos4x12.dtsi                     | 4 ++++
>  3 files changed, 12 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.txt b/Documentation/devicetree/bindings/arm/samsung/pmu.txt
> index f1f1552..b562634 100644
> --- a/Documentation/devicetree/bindings/arm/samsung/pmu.txt
> +++ b/Documentation/devicetree/bindings/arm/samsung/pmu.txt
> @@ -2,6 +2,9 @@ SAMSUNG Exynos SoC series PMU Registers
>  
>  Properties:
>   - compatible : should contain two values. First value must be one from following list:
> +		   - "samsung,exynos4210-pmu" - for Exynos4210 SoC,
> +		   - "samsung,exynos4212-pmu" - for Exynos4212 SoC,
> +		   - "samsung,exynos4412-pmu" - for Exynos4412 SoC,

Here two compatible strings are specified, one for each SoC in 4x12
family, but...

>  		   - "samsung,exynos5250-pmu" - for Exynos5250 SoC,
>  		   - "samsung,exynos5420-pmu" - for Exynos5420 SoC.
>  		second value must be always "syscon".
> diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
> index 2f8bcd0..264066f 100644
> --- a/arch/arm/boot/dts/exynos4.dtsi
> +++ b/arch/arm/boot/dts/exynos4.dtsi
> @@ -110,6 +110,11 @@
>  		reg = <0x10010000 0x400>;
>  	};
>  
> +	pmu_system_controller: system-controller@10020000 {
> +		compatible = "samsung,exynos4210-pmu", "syscon";
> +		reg = <0x10020000 0x4000>;
> +	};
> +
>  	dsi_0: dsi@11C80000 {
>  		compatible = "samsung,exynos4210-mipi-dsi";
>  		reg = <0x11C80000 0x10000>;
> diff --git a/arch/arm/boot/dts/exynos4x12.dtsi b/arch/arm/boot/dts/exynos4x12.dtsi
> index c4a9306..7f767f7 100644
> --- a/arch/arm/boot/dts/exynos4x12.dtsi
> +++ b/arch/arm/boot/dts/exynos4x12.dtsi
> @@ -119,6 +119,10 @@
>  		interrupts = <0 72 0>;
>  	};
>  
> +	pmu_system_controller: system-controller@10020000 {
> +		compatible = "samsung,exynos4x12-pmu", "syscon";

Here one node is added for both using an undocumented compatible string.
Please fix this according to documentation.

Best regards,
Tomasz
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