linux-kernel - Re: [PATCH v2 1/2] arm64: dts: qcom: Enable lvds panel-DV215FHM-R01 for rb3gen2 industrial mezzanine

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Message-ID: <7649a0dd-b343-4ab1-b1f8-b9941f59f564@oss.qualcomm.com>
Date: Fri, 30 Jan 2026 11:54:33 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Gopi Botlagunta <venkata.botlagunta@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, venkata.valluru@....qualcomm.com,
        jessica.zhang@....qualcomm.com, Yi Zhang <zhanyi@....qualcomm.com>
Subject: Re: [PATCH v2 1/2] arm64: dts: qcom: Enable lvds panel-DV215FHM-R01
 for rb3gen2 industrial mezzanine

On 1/30/26 11:27 AM, Gopi Botlagunta wrote:
> Below is the routing diagram of dsi lanes from qcs6490 soc to
> mezzanine.
> 
> DSI0 --> SW1403.4 --> LT9611uxc --> hdmi port
>                  |
>                   --> SW2700.1 --> dsi connector
>                               |
>                                --> LT9211c --> LVDS connector
> 
> Disable hdmi connector for industrial mezzanine and enable
> LT9211c bridge and lvds panel node.
> LT9211c is powered by default with reset gpio connected to 117.
> 
> Signed-off-by: Gopi Botlagunta <venkata.botlagunta@....qualcomm.com>
> Co-developed-by: Yi Zhang <zhanyi@....qualcomm.com>
> Signed-off-by: Yi Zhang <zhanyi@....qualcomm.com>
> ---
>  .../qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso | 106 +++++++++++++++++++++
>  1 file changed, 106 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso
> index 619a42b5ef48..cc8ee1643167 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso
> @@ -8,6 +8,112 @@
>  #include <dt-bindings/clock/qcom,gcc-sc7280.h>
>  #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
>  
> +/ {
> +
> +	hdmi-connector {

Please add a label to this node in the base dts and reference it &as_such,
the current approach is very error-prone

Konrad