linux-kernel - Re: [PATCH 06/13] ARM: dts: qcom: enable usb phy by default for ipq8064

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Message-ID: <62c58b03.1c69fb81.527d5.ecc6@mx.google.com>
Date:   Wed, 6 Jul 2022 14:59:10 +0200
From:   Christian Marangi <ansuelsmth@...il.com>
To:     Konrad Dybcio <konrad.dybcio@...ainline.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jonathan McDowell <noodles@...th.li>
Subject: Re: [PATCH 06/13] ARM: dts: qcom: enable usb phy by default for
 ipq8064

On Wed, Jul 06, 2022 at 03:04:44PM +0200, Konrad Dybcio wrote:
> 
> 
> On 5.07.2022 15:39, Christian Marangi wrote:
> > Enable usb phy by default. When the usb phy were pushed, half of them
> > were flagged as disabled by mistake. Fix this to correctly init dwc3
> > node on any ipq8064 based SoC.
> Are you sure they are used on *all* devices? If not, you will
> lose power by enabling unused hw..
> 
> Konrad

Well there could be device that have no usb at all... so honestly
enabling one of them is also wrong. Should I disable the other and
enable it for the upstream device?

Also it's all handled by dummy vbus so i think we can ignore the losing
power thing. (this thing is old)

> > 
> > Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> > Tested-by: Jonathan McDowell <noodles@...th.li>
> > ---
> >  arch/arm/boot/dts/qcom-ipq8064.dtsi | 4 ----
> >  1 file changed, 4 deletions(-)
> > 
> > diff --git a/arch/arm/boot/dts/qcom-ipq8064.dtsi b/arch/arm/boot/dts/qcom-ipq8064.dtsi
> > index b2faa4a067e9..9c32c637ea46 100644
> > --- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
> > +++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
> > @@ -1177,8 +1177,6 @@ hs_phy_0: phy@...f8800 {
> >  			clocks = <&gcc USB30_0_UTMI_CLK>;
> >  			clock-names = "ref";
> >  			#phy-cells = <0>;
> > -
> > -			status = "disabled";
> >  		};
> >  
> >  		ss_phy_0: phy@...f8830 {
> > @@ -1187,8 +1185,6 @@ ss_phy_0: phy@...f8830 {
> >  			clocks = <&gcc USB30_0_MASTER_CLK>;
> >  			clock-names = "ref";
> >  			#phy-cells = <0>;
> > -
> > -			status = "disabled";
> >  		};
> >  
> >  		usb3_0: usb3@...f8800 {

-- 
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