linux-kernel - Re: [PATCH v3 4/4] arm64: dts: qcom: x1e80100-crd: Enable external DP

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Message-ID: <Zxip8j7dgrWkjOH/@linaro.org>
Date: Wed, 23 Oct 2024 10:46:58 +0300
From: Abel Vesa <abel.vesa@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>
Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
	Konrad Dybcio <konradybcio@...nel.org>,
	Rajendra Nayak <quic_rjendra@...cinc.com>,
	Sibi Sankar <quic_sibis@...cinc.com>,
	Johan Hovold <johan@...nel.org>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	Trilok Soni <quic_tsoni@...cinc.com>, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v3 4/4] arm64: dts: qcom: x1e80100-crd: Enable external DP

On 24-10-22 19:32:18, Bjorn Andersson wrote:
> On Tue, Oct 22, 2024 at 01:26:57PM GMT, Abel Vesa wrote:
> > Enable the remaining MDSS DP instances and force 2 data lanes for each DP.
> 
> Please document why you're forcing 2 data lanes for each DP (should this
> restriction remain when we add support for 4 lanes?) - and I would be
> extra happy if you spelled out your abbreviations.

Will do. 

> 
> Regards,
> Bjorn

Thanks for reviewing.

Abel

> 
> > 
> > Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> > ---
> >  arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 24 ++++++++++++++++++++++++
> >  1 file changed, 24 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > index 7cc45a5cd7eb7e70915d04ea7e181b56f693f768..db36e3e1a3660f3bcd7d7ddc8286e1ff5d00c94a 100644
> > --- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > +++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > @@ -1105,6 +1105,30 @@ &mdss {
> >  	status = "okay";
> >  };
> >  
> > +&mdss_dp0 {
> > +	status = "okay";
> > +};
> > +
> > +&mdss_dp0_out {
> > +	data-lanes = <0 1>;
> > +};
> > +
> > +&mdss_dp1 {
> > +	status = "okay";
> > +};
> > +
> > +&mdss_dp1_out {
> > +	data-lanes = <0 1>;
> > +};
> > +
> > +&mdss_dp2 {
> > +	status = "okay";
> > +};
> > +
> > +&mdss_dp2_out {
> > +	data-lanes = <0 1>;
> > +};
> > +
> >  &mdss_dp3 {
> >  	compatible = "qcom,x1e80100-dp";
> >  	/delete-property/ #sound-dai-cells;
> > 
> > -- 
> > 2.34.1
> >