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

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Date:   Mon, 29 Jul 2019 09:23:06 +0200
From:   Alexandre Torgue <alexandre.torgue@...com>
To:     Fabrice Gasnier <fabrice.gasnier@...com>, <jic23@...nel.org>,
        <robh+dt@...nel.org>
CC:     <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

Hi fabrice

On 7/3/19 12:08 PM, Fabrice Gasnier 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>
> ---
>   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>;
> 


Applied on stm32-next.

Thanks.
Alex