Re: [PATCH v2 2/2] arm64: dts: qcom: Enable secondary USB controller on QCS615 Ride

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On Thu, Dec 12, 2024 at 07:14:22PM +0100, Konrad Dybcio wrote:
> On 11.12.2024 9:26 AM, Song Xue wrote:
> > From: Krishna Kurapati <krishna.kurapati@xxxxxxxxxxxxxxxx>
> > 
> > Enable secondary USB controller on QCS615 Ride platform. The secondary
> > USB controller is made "host", as it is a Type-A port.
> > 
> > Signed-off-by: Krishna Kurapati <krishna.kurapati@xxxxxxxxxxxxxxxx>
> > Co-developed-by: Song Xue <quic_songxue@xxxxxxxxxxx>
> > Signed-off-by: Song Xue <quic_songxue@xxxxxxxxxxx>
> > ---
> >  arch/arm64/boot/dts/qcom/qcs615-ride.dts | 28 ++++++++++++++++++++++++++++
> >  1 file changed, 28 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> > index f41319ff47b983d771da52775fa78b4385c4e532..26ce0496d13ccbfea392c6d50d9edcab85fbc653 100644
> > --- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> > +++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> > @@ -203,6 +203,15 @@ &gcc {
> >  		 <&sleep_clk>;
> >  };
> >  
> > +&pm8150_gpios {
> > +	usb2_en_state: usb2-en-state {
> > +		pins = "gpio10";
> > +		function = "normal";
> > +		output-high;
> > +		power-source = <0>;
> > +	};
> 
> Does this go to an enable pin of a vreg / switch?
> 
> I think we settled on describing such cases as fixed regulators
> (that are always-on for now) - would you remember, +Dmitry?

You are right. Usually it's a fixed regulator. At least there should be
an explanation for that pin.

> 
> The rest looks good.
> 
> Konrad

-- 
With best wishes
Dmitry




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