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

From: Arnd Bergmann
Date: Mon Jul 21 2014 - 04:58:18 EST


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@126C0000 {
> - 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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