linux-kernel - Re: [PATCH 3/4] ARM: shmobile: emev2: Add PFC information to emev2.dtsi

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Date:	Tue, 13 Jan 2015 16:45:59 +0200
From:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:	Niklas Söderlund <niso@....se>
Cc:	linux-kernel@...r.kernel.org, linus.walleij@...aro.org,
	devicetree@...r.kernel.org, linux-sh@...r.kernel.org,
	magnus.damm@...il.com
Subject: Re: [PATCH 3/4] ARM: shmobile: emev2: Add PFC information to emev2.dtsi

Hi Niklas,

Thank you for the patch.

On Friday 12 December 2014 21:01:36 Niklas Söderlund wrote:
> With this information all GPIOs can make use of the PFC functionality.
> 
> Signed-off-by: Niklas Söderlund <niso@....se>
> ---
>  arch/arm/boot/dts/emev2.dtsi | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/emev2.dtsi b/arch/arm/boot/dts/emev2.dtsi
> index cc7bfe0..518b7fa 100644
> --- a/arch/arm/boot/dts/emev2.dtsi
> +++ b/arch/arm/boot/dts/emev2.dtsi
> @@ -169,12 +169,19 @@
>  		clock-names = "sclk";
>  	};
> 
> +	pfc: pfc@...40200 {
> +		compatible = "renesas,pfc-emev2";
> +		reg = <0xe0140200 0x14>, <0xe0140284 0xc>,
> +			<0xe0140294 0x8>, <0xe01402a8 0x4>;

I think a single reg entry set to <0xe0140200 0x100> should be enough.

> +	};
> +
>  	gpio0: gpio@...50000 {
>  		compatible = "renesas,em-gio";
>  		reg = <0xe0050000 0x2c>, <0xe0050040 0x20>;
>  		interrupts = <0 67 IRQ_TYPE_LEVEL_HIGH>,
>  			     <0 68 IRQ_TYPE_LEVEL_HIGH>;
>  		gpio-controller;
> +		gpio-ranges = <&pfc 0 0 32>;
>  		#gpio-cells = <2>;
>  		ngpios = <32>;
>  		interrupt-controller;
> @@ -186,6 +193,7 @@
>  		interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>,
>  			     <0 70 IRQ_TYPE_LEVEL_HIGH>;
>  		gpio-controller;
> +		gpio-ranges = <&pfc 0 32 32>;
>  		#gpio-cells = <2>;
>  		ngpios = <32>;
>  		interrupt-controller;
> @@ -197,6 +205,7 @@
>  		interrupts = <0 71 IRQ_TYPE_LEVEL_HIGH>,
>  			     <0 72 IRQ_TYPE_LEVEL_HIGH>;
>  		gpio-controller;
> +		gpio-ranges = <&pfc 0 64 32>;
>  		#gpio-cells = <2>;
>  		ngpios = <32>;
>  		interrupt-controller;
> @@ -208,6 +217,7 @@
>  		interrupts = <0 73 IRQ_TYPE_LEVEL_HIGH>,
>  			     <0 74 IRQ_TYPE_LEVEL_HIGH>;
>  		gpio-controller;
> +		gpio-ranges = <&pfc 0 96 32>;
>  		#gpio-cells = <2>;
>  		ngpios = <32>;
>  		interrupt-controller;
> @@ -219,6 +229,7 @@
>  		interrupts = <0 75 IRQ_TYPE_LEVEL_HIGH>,
>  			     <0 76 IRQ_TYPE_LEVEL_HIGH>;
>  		gpio-controller;
> +		gpio-ranges = <&pfc 0 128 32>;

Shouldn't this be <&pfc 0 128 31>; ?

>  		#gpio-cells = <2>;
>  		ngpios = <31>;
>  		interrupt-controller;

-- 
Regards,

Laurent Pinchart

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