Re: [PATCH] ARM: dts: imx6qdl-nitrogen6_max: Disable LVDS channels

From: Fabio Estevam
Date: Mon Apr 08 2019 - 16:38:00 EST


Hi Robert,

[Adding Gary]

On Mon, Apr 8, 2019 at 2:54 PM Robert Foss <robert.foss@xxxxxxxxxxxxx> wrote:
>
> If a LVDS device is not connected, having the LVDS channels
> enabled will prevent imx-ldb from probing correctly even
> if other CRTCs are connected.
>
> Signed-off-by: Robert Foss <robert.foss@xxxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi
> index 39200e5dc896..5b413cf4c250 100644
> --- a/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi
> @@ -703,7 +703,7 @@
> status = "okay";
>
> lvds-channel@0 {
> - status = "okay";
> + status = "disabled";
>
> port@4 {
> reg = <4>;
> @@ -715,7 +715,7 @@
> };
>
> lvds-channel@1 {
> - status = "okay";
> + status = "disabled";

I am not sure I understood what you are trying to fix.

Could you please share some logs when imx-ldb fails to probe correctly?

Is this a regression?