linux-kernel - Re: [PATCH v2 3/3] ARM: dts: stm32: add syscfg to ADC on stm32mp157c

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Message-ID: <c69cff23-b67e-2aed-f250-c237e9cd4a3d@st.com>
Date:   Mon, 15 Jul 2019 09:01:05 +0200
From:   Fabrice Gasnier <fabrice.gasnier@...com>
To:     Jonathan Cameron <jic23@...nel.org>
CC:     <robh+dt@...nel.org>, <alexandre.torgue@...com>,
        <mark.rutland@....com>, <mcoquelin.stm32@...il.com>,
        <lars@...afoo.de>, <knaack.h@....de>, <pmeerw@...erw.net>,
        <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/3] ARM: dts: stm32: add syscfg to ADC on stm32mp157c

On 7/14/19 6:13 PM, Jonathan Cameron wrote:
> On Wed, 3 Jul 2019 12:08:16 +0200
> Fabrice Gasnier <fabrice.gasnier@...com> wrote:
> 
>> On stm32mp157c, the ADC inputs are multiplexed with analog switches which
>> have reduced performances when their supply is below 2.7V (vdda by
>> default).
>> Add syscfg registers that can be used on stm32mp157c, to get full ADC
>> analog performances.
>>
>> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
> I've applied the patches using this on the assumption this will go via
> the usual SoC route.
> 
> Thanks,

Hi Jonathan,

Many thanks,
Fabrice

> 
> Jonathan
> 
>> ---
>>  arch/arm/boot/dts/stm32mp157c.dtsi | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
>> index 2dd5162..b9a5b58 100644
>> --- a/arch/arm/boot/dts/stm32mp157c.dtsi
>> +++ b/arch/arm/boot/dts/stm32mp157c.dtsi
>> @@ -862,6 +862,7 @@
>>  			clocks = <&rcc ADC12>, <&rcc ADC12_K>;
>>  			clock-names = "bus", "adc";
>>  			interrupt-controller;
>> +			st,syscfg = <&syscfg>;
>>  			#interrupt-cells = <1>;
>>  			#address-cells = <1>;
>>  			#size-cells = <0>;
>