Re: [PATCH v2] ARM64: dts: meson-axg: add saradc support

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Kevin Hilman <khilman@xxxxxxxxxxxx> writes:

> Jerome Brunet <jbrunet@xxxxxxxxxxxx> writes:
>
>> On Mon, 2018-07-02 at 22:25 +0000, Yixun Lan wrote:
>>> From: Xingyu Chen <xingyu.chen@xxxxxxxxxxx>
>>> 
>>> Add the DT info for SAR ADC of the Amlogic's Meson-AXG SoC.
>>> 
>>> Signed-off-by: Xingyu Chen <xingyu.chen@xxxxxxxxxxx>
>>> Signed-off-by: Yixun Lan <yixun.lan@xxxxxxxxxxx>
>>> ---
>>> Hi kevin
>>>   I just re-send this patch which rebased to your khilman/v4.18/integ branch
>>>   Thanks
>>> Yixun
>>> 
>>> nothing changed since patch v1 [1]:
>>>  -
>>> 
>>> [1] https://lkml.kernel.org/r/20180326092117.208416-1-yixun.lan@xxxxxxxxxxx
>>> 
>>> ---
>>>  .../arm64/boot/dts/amlogic/meson-axg-s400.dts |  5 +++++
>>>  arch/arm64/boot/dts/amlogic/meson-axg.dtsi    | 21 +++++++++++++++++++
>>>  2 files changed, 26 insertions(+)
>>> 
>>> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
>>> index 4b3331fbfe39..6041f68b32ae 100644
>>> --- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
>>> +++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
>>> @@ -153,3 +153,8 @@
>>>  		compatible = "brcm,bcm4329-fmac";
>>>  	};
>>>  };
>>> +
>>> +&saradc {
>>> +	status = "okay";
>>> +	vref-supply = <&vddio_ao18>;
>>> +};
>>> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
>>> index 67d7115e4eff..52678a69dbf8 100644
>>> --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
>>> +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
>>> @@ -91,6 +91,13 @@
>>>  		method = "smc";
>>>  	};
>>>  
>>> +	vddio_ao18: regulator-vddio_ao18 {
>>> +		compatible = "regulator-fixed";
>>> +		regulator-name = "VDDIO_AO18";
>>> +		regulator-min-microvolt = <1800000>;
>>> +		regulator-max-microvolt = <1800000>;
>>> +	};
>>
>> Kevin, Yixun,
>>
>> I find odd that we are adding a regulator to SoC device tree file.
>> Those regulator are usually part of board file
>>
>> Unless the regulator is actually inside the SoC, this is not the place for it.
>>
>> Sorry for not catching this earlier.
>
> You're right, I should've noticed this earlier also.
>
> Yixun, can you resend this with the regulators in the board file please?
>
> In the mean time, I've dropped this from v4.19/dt64 branch,

Nevermind, Jerome fixed this up already in a series of DT updates for
AXG, so I'll keep it as is.

Thanks Jerome!

Kevin
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