linux-kernel - Re: [PATCHv7 0/4] iio: adc: exynos_adc: Support Exynos3250 ADC and code clean

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Date:	Mon, 21 Jul 2014 10:57:35 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Chanwoo Choi <cw00.choi@...sung.com>
Cc:	linux-arm-kernel@...ts.infradead.org, jic23@...nel.org,
	ch.naveen@...sung.com, mark.rutland@....com,
	devicetree@...r.kernel.org, kgene.kim@...sung.com,
	pawel.moll@....com, ijc+devicetree@...lion.org.uk,
	linux-iio@...r.kernel.org, t.figa@...sung.com,
	rdunlap@...radead.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	kyungmin.park@...sung.com, robh+dt@...nel.org, galak@...eaurora.org
Subject: Re: [PATCHv7 0/4] iio: adc: exynos_adc: Support Exynos3250 ADC and code clean

On Monday 21 July 2014 17:11:12 Chanwoo Choi wrote:
> >    work to address the comments and do testing.
> 
> OK, I'll add this patch.
> But, I have a question.
> 
> Your patch add following compatible string.
> "s3c64100-adc" is right?
> 
>  static const struct of_device_id exynos_adc_match[] = {
>         {
> +               .compatible = "samsung,s3c64100-adc",
> +               .data = &exynos_adc_s3c64xx_data,
> +       }, {

There is a typo, thanks for spotting this. It should be
"samsung,s3c6410-adc", not "samsung,s3c64100-adc".

> > b) For the "compatible" string, I think it makes sense to set a fallback to
> >    "samsung,exynos-adc-v2" in the case for exynos3250, making the DT
> >    representation
> > 
> >       compatible = "samsung,exynos3250-adc", "samsung,exynos-adc-v2";
> > 
> >    It's not entirely compatible because of the addition of the clock, but
> >    since the register layout is the same, I think it still make sense.
> 
> OK, I'll add it in exynos3250.dtsi as following:
> 
>                 adc: adc@...C0000 {
> -                       compatible = "samsung,exynos-adc-v3";
> +                       compatible = "samsung,exynos3250-adc",
> +                                    "samsung,exynos-adc-v2";
>                         reg = <0x126C0000 0x100>, <0x10020718 0x4>;
>                         interrupts = <0 137 0>;
> -                       clock-names = "adc", "sclk_tsadc";
> +                       clock-names = "adc", "sclk";
>                         clocks = <&cmu CLK_TSADC>, <&cmu CLK_SCLK_TSADC>;
>                         #io-channel-cells = <1>;
>                         io-channel-ranges;

Ok, looks good.

	Arnd
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