linux-kernel - Re: [PATCH 3/3] arm64: dts: qcom: x1e80100-yoga: Update panel bindings

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Message-ID: <CAF6AEGvz8ZaM7a0_jVqT-zv5QOEznqrOHd_1zQcDQcQ5uM-9UA@mail.gmail.com>
Date: Thu, 18 Jul 2024 19:31:43 -0700
From: Rob Clark <robdclark@...il.com>
To: Doug Anderson <dianders@...omium.org>
Cc: linux-arm-msm@...r.kernel.org, 
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Abel Vesa <abel.vesa@...aro.org>, 
	Rob Clark <robdclark@...omium.org>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] arm64: dts: qcom: x1e80100-yoga: Update panel bindings

On Thu, Jul 18, 2024 at 4:12 PM Doug Anderson <dianders@...omium.org> wrote:
>
> Hi,
>
> On Thu, Jul 18, 2024 at 11:44 AM Rob Clark <robdclark@...il.com> wrote:
> >
> > From: Rob Clark <robdclark@...omium.org>
> >
> > Use the correct panel compatible, and wire up enable-gpio.  It is wired
> > up in the same way as the x1e80100-crd.
> >
> > Signed-off-by: Rob Clark <robdclark@...omium.org>
> > ---
> >  .../boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts   | 13 ++++++++++++-
> >  1 file changed, 12 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
> > index f569f0fbd1fc..37ef05f8c7e0 100644
> > --- a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
> > +++ b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
> > @@ -592,9 +592,13 @@ &mdss_dp3 {
> >
> >         aux-bus {
> >                 panel {
> > -                       compatible = "edp-panel";
> > +                       compatible = "samsung,atna45dc02";
>
> Instead of the above, I believe you should use:
>
> compatible = "samsung,atna45dc02", "samsung,atna33xc20";
>
> ...which makes the dts work without any code changes. This is what we
> decided upon for Stephen's panel [0]

sure, that sounds reasonable.. I only saw the first version because
that is what is in the x1e80100-next branch atm

BR,
-R

> [0] https://lore.kernel.org/r/20240715-x1e80100-crd-backlight-v2-0-31b7f2f658a3@linaro.org/
>
> -Doug
>