linux-kernel - Re: [PATCHv4 3/4] iio: devicetree: Add DT binding documentation for Exynos3250 ADC

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Message-ID: <CAHfPSqBepO+73vLyJJox1fP=0-F5KSE3uyjh-HXYXkHRLpw0QA@mail.gmail.com>
Date:	Wed, 18 Jun 2014 11:42:51 +0530
From:	Naveen Krishna Ch <naveenkrishna.ch@...il.com>
To:	Chanwoo Choi <cw00.choi@...sung.com>
Cc:	jic23@...nel.org, My self <ch.naveen@...sung.com>,
	t.figa@...sung.com, Kukjin Kim <kgene.kim@...sung.com>,
	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	rdunlap@...radead.org, sachin.kamat@...aro.org,
	linux-iio@...r.kernel.org,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCHv4 3/4] iio: devicetree: Add DT binding documentation for
 Exynos3250 ADC

Hello Chanwoo,

On 18 June 2014 07:51, Chanwoo Choi <cw00.choi@...sung.com> wrote:
> This patch add DT binding documentation for Exynos3250 ADC IP. Exynos3250 has
> special clock ('sclk_tsadc') for ADC which provide clock to internal ADC.
>
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> Acked-by: Kyungmin Park <kyungmin.park@...sung.com>

Changes look good to me.
Reviewed-by: Naveen Krishna Chatradhi <ch.naveen@...sung.com>

> ---
>  .../devicetree/bindings/arm/samsung/exynos-adc.txt   | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
> index 5d49f2b..3a5af82 100644
> --- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
> +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
> @@ -14,6 +14,8 @@ Required properties:
>                                 for exynos4412/5250 controllers.
>                         Must be "samsung,exynos-adc-v2" for
>                                 future controllers.
> +                       Must be "samsung,exynos3250-adc-v2" for
> +                               for exynos3250 controllers.
>  - reg:                 Contains ADC register address range (base address and
>                         length) and the address of the phy enable register.
>  - interrupts:          Contains the interrupt information for the timer. The
> @@ -21,7 +23,11 @@ Required properties:
>                         the Samsung device uses.
>  - #io-channel-cells = <1>; As ADC has multiple outputs
>  - clocks               From common clock binding: handle to adc clock.
> +                       From common clock binding: handle to sclk_tsadc clock
> +                       if using Exynos3250.
>  - clock-names          From common clock binding: Shall be "adc".
> +                       From common clock binding: Shall be "sclk_tsadc"
> +                       if using Exynos3250.
>  - vdd-supply           VDD input supply.
>
>  Note: child nodes can be added for auto probing from device tree.
> @@ -41,6 +47,20 @@ adc: adc@...10000 {
>         vdd-supply = <&buck5_reg>;
>  };
>
> +Example: adding device info in dtsi file for Exynos3250 with additional sclk
> +
> +adc: adc@...C0000 {
> +       compatible = "samsung,exynos3250-adc-v2";
> +       reg = <0x126C0000 0x100>, <0x10020718 0x4>;
> +       interrupts = <0 137 0>;
> +       #io-channel-cells = <1>;
> +       io-channel-ranges;
> +
> +       clocks = <&cmu CLK_TSADC>, <&cmu CLK_SCLK_TSADC>;
> +       clock-names = "adc", "sclk_adc";
> +
> +       vdd-supply = <&buck5_reg>;
> +};
>
>  Example: Adding child nodes in dts file
>
> --
> 1.8.0
>
> --
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