linux-kernel - Re: [PATCH v2 2/2] arm64: dts: qcom: x1e80100-yoga: Update panel bindings

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Message-ID: <Zp5vboqXeVWaNrs-@linaro.org>
Date: Mon, 22 Jul 2024 16:40:46 +0200
From: Stephan Gerhold <stephan.gerhold@...aro.org>
To: Rob Clark <robdclark@...il.com>
Cc: linux-arm-msm@...r.kernel.org, Doug Anderson <dianders@...omium.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 v2 2/2] arm64: dts: qcom: x1e80100-yoga: Update panel
 bindings

On Mon, Jul 22, 2024 at 07:37:05AM -0700, Rob Clark wrote:
> On Mon, Jul 22, 2024 at 12:15 AM Stephan Gerhold
> <stephan.gerhold@...aro.org> wrote:
> >
> > On Fri, Jul 19, 2024 at 11:52:50AM -0700, Rob Clark 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..28a6ea5a24fd 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", "samsung,atna33xc20";
> > > +                     enable-gpios = <&pmc8380_3_gpios 4 GPIO_ACTIVE_HIGH>;
> > >                       power-supply = <&vreg_edp_3p3>;
> > >
> > > +                     pinctrl-0 = <&edp_bl_en>;
> > > +                     pinctrl-names = "default";
> > > +
> > >                       port {
> > >                               edp_panel_in: endpoint {
> > >                                       remote-endpoint = <&mdss_dp3_out>;
> > > @@ -663,6 +667,13 @@ &pcie6a_phy {
> > >       status = "okay";
> > >  };
> > >
> > > +&pmc8380_3_gpios {
> > > +     edp_bl_en: edp-bl-en-state {
> > > +             pins = "gpio4";
> > > +             function = "normal";
> > > +     };
> >
> > Did you omit the "power-source" here on purpose? It works without
> > because the firmware already configures this pin, but ideally we should
> > provide the full configuration.
> 
> I just copied the CRD.. other than the panel, things appear to be
> wired up in the same way.
> 

It looks like Abel has an older version of my patch in his tree. The
patch that I sent upstream has the "power-source":

https://lore.kernel.org/linux-arm-msm/20240715-x1e80100-crd-backlight-v2-3-31b7f2f658a3@linaro.org/

Can you copy it from there?

Thanks,
Stephan