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Date: Mon, 14 Jul 2014 13:57:54 +0200 From: Marek Szyprowski <m.szyprowski@...sung.com> To: Joonyoung Shim <jy0922.shim@...sung.com>, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org Cc: gregkh@...uxfoundation.org, broonie@...aro.org, tobetter@...il.com Subject: Re: [PATCH 2/2] USB: add reset resume quirk for usb3503 Hello, On 2014-07-10 07:22, Joonyoung Shim wrote: > The usb device will autoresume from choose_wakeup() if it is > autosuspended with the wrong wakeup setting, but below errors occur > because usb3503 misc driver will switch to standby mode when suspended. > > As add USB_QUIRK_RESET_RESUME, it can stop setting wrong wakeup from > autosuspend_check(). > > [ 7.734717] usb 1-3: reset high-speed USB device number 3 using exynos-ehci > [ 7.854658] usb 1-3: device descriptor read/64, error -71 > [ 8.079657] usb 1-3: device descriptor read/64, error -71 > [ 8.294664] usb 1-3: reset high-speed USB device number 3 using exynos-ehci > [ 8.414658] usb 1-3: device descriptor read/64, error -71 > [ 8.639657] usb 1-3: device descriptor read/64, error -71 > [ 8.854667] usb 1-3: reset high-speed USB device number 3 using exynos-ehci > [ 9.264598] usb 1-3: device not accepting address 3, error -71 > [ 9.374655] usb 1-3: reset high-speed USB device number 3 using exynos-ehci > [ 9.784601] usb 1-3: device not accepting address 3, error -71 > [ 9.784838] usb usb1-port3: device 1-3 not suspended yet > > Signed-off-by: Joonyoung Shim <jy0922.shim@...sung.com> Acked-by: Marek Szyprowski <m.szyprowski@...sung.com> > --- > drivers/usb/core/quirks.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c > index 739ee8e..2c9ba407 100644 > --- a/drivers/usb/core/quirks.c > +++ b/drivers/usb/core/quirks.c > @@ -152,6 +152,9 @@ static const struct usb_device_id usb_quirk_list[] = { > /* INTEL VALUE SSD */ > { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME }, > > + /* USB3503 */ > + { USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME }, > + > { } /* terminating entry must be last */ > }; > Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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