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

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Date:   Sun, 14 Jul 2019 17:13:10 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Fabrice Gasnier <fabrice.gasnier@...com>
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 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,

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>;