On Thu, Oct 13, 2016 at 4:29 PM, John Stultz <[email protected]> wrote: > From: Chen Yu <[email protected]> > > The Hi6220's usb controller is limited in that it does not > automatically autonegotiate the usb speed. Thus it requires a > quirk so that we can manually negotiate the best usb speed for > the attached device. > > Cc: Wei Xu <[email protected]> > Cc: Guodong Xu <[email protected]> > Cc: Amit Pundir <[email protected]> > Cc: Rob Herring <[email protected]> > Cc: Mark Rutland <[email protected]> > Cc: John Youn <[email protected]> > Cc: Douglas Anderson <[email protected]> > Cc: Greg Kroah-Hartman <[email protected]> > Cc: [email protected] > Signed-off-by: Chen Yu <[email protected]> > Signed-off-by: John Stultz <[email protected]> > --- > arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 1 + > drivers/usb/dwc2/core.h | 7 +++ > drivers/usb/dwc2/hcd.c | 75 > +++++++++++++++++++++++++++++++ > drivers/usb/dwc2/platform.c | 3 ++ > 4 files changed, 86 insertions(+) > > diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi > b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi > index 17839db..2c8f435 100644 > --- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi > +++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi > @@ -752,6 +752,7 @@ > g-np-tx-fifo-size = <128>; > g-tx-fifo-size = <128 128 128 128 128 128>; > interrupts = <0 77 0x4>; > + hi6220,change_speed_quirk;
I also realize I'm missing the DT binding documentation for this, but I wanted to get a rough idea if this approach was ok first. On the next submission (if there aren't major objections to the approach) I can split the binding documentation and dts change into different patches. thanks -john
