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SubjectRe: [PATCH v3 10/13] ARM: dts: rockchip: add saradc support for rv1108
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Hi Andy,

Am Freitag, 11. August 2017, 11:46:51 CEST schrieb Andy Yan:
> Add saradc device tree node for rv1108 soc
>
> Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
>

> + adc: adc@1038c000 {
> + compatible = "rockchip,rv1108-saradc", "rockchip,rk3399-saradc";
> + reg = <0x1038c000 0x100>;
> + interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
> + #io-channel-cells = <1>;
> + io-channel-ranges;

What do you need the io-channel-ranges for?
I.e. according to the documenation it is meant for when the adc is also
a "bus node" and has children that should inherit channels from it.

In all saradc uses so far we only have separate nodes referencing the
adc controller (like adc-keys etc), so this does not look like it is needed?


Heiko

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