linux-kernel - Re: [PATCH v5 7/8] [DNI] arm64: dts: renesas: salvator-x-max9286: Specify channel amplitude

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Message-ID: <71d9898f-2371-7c9d-e0da-cdec1b69ba0f@ideasonboard.com>
Date:   Wed, 18 Nov 2020 13:40:00 +0000
From:   Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
To:     Jacopo Mondi <jacopo+renesas@...ndi.org>,
        laurent.pinchart+renesas@...asonboard.com,
        niklas.soderlund+renesas@...natech.se, geert@...ux-m68k.org
Cc:     linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org, Hyun Kwon <hyunk@...inx.com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        sergei.shtylyov@...il.com
Subject: Re: [PATCH v5 7/8] [DNI] arm64: dts: renesas: salvator-x-max9286:
 Specify channel amplitude

Hi Jacopo,

On 16/11/2020 13:53, Jacopo Mondi wrote:
> Use the newly introduced 'maxim,initial-reverse-channel-mV'
> property to specify the initial reverse channel amplitude when
> the remote serializers are pre-programmed with noise immunity threshold
> enabled.
> 
> Signed-off-by: Jacopo Mondi <jacopo+renesas@...ndi.org>

Tested-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>



> ---
>  arch/arm64/boot/dts/renesas/salvator-x-max9286.dtsi | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/salvator-x-max9286.dtsi b/arch/arm64/boot/dts/renesas/salvator-x-max9286.dtsi
> index 6f4798859542..f14a133b7302 100644
> --- a/arch/arm64/boot/dts/renesas/salvator-x-max9286.dtsi
> +++ b/arch/arm64/boot/dts/renesas/salvator-x-max9286.dtsi
> @@ -128,6 +128,7 @@ gmsl-deserializer@4c {
>  		compatible = "maxim,max9286";
>  		reg = <0x4c>;
>  		poc-supply = <&poc_12v>;
> +		maxim,initial-reverse-channel-mV = <170>;
>  
>  		ports {
>  			#address-cells = <1>;
> @@ -263,6 +264,7 @@ gmsl-deserializer@6c {
>  		compatible = "maxim,max9286";
>  		reg = <0x6c>;
>  		poc-supply = <&poc_12v>;
> +		maxim,initial-reverse-channel-mV = <170>;
>  
>  		ports {
>  			#address-cells = <1>;
>