On Fri, Oct 14, 2016 at 8:00 AM, Rob Herring <robh+dt@xxxxxxxxxx> wrote: > On Thu, Oct 13, 2016 at 6:29 PM, John Stultz <john.stultz@xxxxxxxxxx> wrote: >> From: Chen Yu <chenyu56@xxxxxxxxxx> >> >> 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 <xuwei5@xxxxxxxxxxxxx> >> Cc: Guodong Xu <guodong.xu@xxxxxxxxxx> >> Cc: Amit Pundir <amit.pundir@xxxxxxxxxx> >> Cc: Rob Herring <robh+dt@xxxxxxxxxx> >> Cc: Mark Rutland <mark.rutland@xxxxxxx> >> Cc: John Youn <johnyoun@xxxxxxxxxxxx> >> Cc: Douglas Anderson <dianders@xxxxxxxxxxxx> >> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> >> Cc: linux-usb@xxxxxxxxxxxxxxx >> Signed-off-by: Chen Yu <chenyu56@xxxxxxxxxx> >> Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx> >> --- >> 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(+) >> [snip] >> diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c >> index 8e1728b..21c328b 100644 >> --- a/drivers/usb/dwc2/platform.c >> +++ b/drivers/usb/dwc2/platform.c >> @@ -585,6 +585,9 @@ static int dwc2_driver_probe(struct platform_device *dev) >> dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n", >> (unsigned long)res->start, hsotg->regs); >> >> + hsotg->change_speed_quirk = device_property_read_bool(&dev->dev, >> + "hi6220,change_speed_quirk"); > > Can't this be determined from the hi6220's compatible string? Ah. Good suggestion! I'm moving the quirk field to the core_params. Should avoid any dts or binding changes. thanks -john -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
