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SubjectRe: [PATCH 2/2] dt-bindings: usb: document snps,dis_split_quirk property in dwc3
On Fri, Dec 17, 2021 at 8:46 AM Yaqin Pan <akingchen@vivo.com> wrote:
>
> >> >> Add snps,dis_split_quirk property for dwc3 controller
> >> >>
> >> >> Signed-off-by: Yaqin Pan <akingchen@vivo.com>
> >> >> ---
> >> >> Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 6 ++++++
> >> >> 1 file changed, 6 insertions(+)
> >> >>
> >> >> diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> >> >> index 41416fbd92aa..e9615ca8f447 100644
> >> >> --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> >> >> +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> >> >> @@ -226,6 +226,12 @@ properties:
> >> >> avoid -EPROTO errors with usbhid on some devices (Hikey 970).
> >> >> type: boolean
> >> >> + snps,dis_split_quirk:
> >
> >I'm tired of the never ending DWC3 quirks. Imply this from the
> >compatible unless it varies by board.
>
> Yes, this is a DWC3 controller compatible issue.

Again, imply this from the compatible STRING (or the compatible string
of the parent node). I don't really want to see more quirk properties
unless they are board or instance specific (meaning for a given SoC,
the setting varies).

What is the downside to always setting this bit in the controller even
if not needed? Answer that question in your commit message.

Rob

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