linux-kernel - Re: [PATCH 2/5] arm64: dts: qcom: qrb4210-rb2: Enable display out

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Date:   Mon, 15 May 2023 15:57:59 +0000
From:   Caleb Connolly <caleb.connolly@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] arm64: dts: qcom: qrb4210-rb2: Enable display out



On 15/05/2023 13:04, Konrad Dybcio wrote:
> The RB2 has a HDMI output via an LT9611UXC bridge. Set it up.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 88 +++++++++++++++++++++++++++++++-
>  1 file changed, 87 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> index 80c6b59c8ff6..9b539720f05d 100644
> --- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> +++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts

[...]
> @@ -312,11 +385,24 @@ &sleep_clk {
>  };
>  
>  &tlmm {
> -	gpio-reserved-ranges = <37 5>, <43 2>, <47 1>,
> +	gpio-reserved-ranges = <43 2>, <47 1>,

Is this intentional?
>  			       <49 1>, <52 1>, <54 1>,
>  			       <56 3>, <61 2>, <64 1>,
>  			       <68 1>, <72 8>, <96 1>;
>  
> +	lt9611_rst_pin: lt9611-rst-state {
> +		pins = "gpio41";
> +		function = "gpio";
> +		input-disable;
> +		output-high;
> +	};
> +
> +	lt9611_irq_pin: lt9611-irq-state {
> +		pins = "gpio46";
> +		function = "gpio";
> +		bias-disable;
> +	};
> +
>  	sdc2_card_det_n: sd-card-det-n-state {
>  		pins = "gpio88";
>  		function = "gpio";
> 

-- 
Kind Regards,
Caleb (they/them)