linux-kernel - Re: [PATCHv3 4/6] arm64: dts: amlogic: odroidc2: use vbus-supply for power source for usb nodes

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Message-ID: <CAFBinCDDASbbwBWdPnzq4352yepamD-ziG09Ki=BvjZ9xMLXdQ@mail.gmail.com>
Date:   Sat, 28 Aug 2021 18:06:55 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Anand Moon <linux.amoon@...il.com>
Cc:     linux-phy@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Matt Corallo <oc2udbzfd@...tcorallo.com>,
        Rob Herring <robh+dt@...nel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Emiliano Ingrassia <ingrassia@...genesys.com>
Subject: Re: [PATCHv3 4/6] arm64: dts: amlogic: odroidc2: use vbus-supply for
 power source for usb nodes

Hi Anand,

On Tue, Aug 17, 2021 at 6:18 AM Anand Moon <linux.amoon@...il.com> wrote:
>
> Use vbus-supply instead of phy-supply as power source for dwc2
> nodes. Drop vbus-supply for usb0 node, as it will handle later.
This is more of a question than a review comment:
Do you think that the USB power setup on Odroid-C1 and Odroid-C2 is
different or the same?
On Odroid-C1 we know that only the PWREN signal which goes to the
Micro-USB connector is configurable while VBUS for the USB host ports
is always enabled.

> Fixes: e841ec956e53 ("ARM64: dts: meson-gxbb-odroidc2:
>        fix usb1 power supply")
>
most Linux commits which I have seen don't use a blank line here
Also I think it's recommended not to break the "Fixes" tag into
multiple lines, even if the text is long
see [0] for example


Best regards,
Martin


[0] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=425bec0032f59eeee12520085cd054fac09cc66e