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    Subject[PATCH 3.16.y-ckt 166/168] USB: add reset resume quirk for usb3503
    Date
    3.16.7-ckt3 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Joonyoung Shim <jy0922.shim@samsung.com>

    commit 526a4045c60fbaede88ec95a69a73059dff02160 upstream.

    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@samsung.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Signed-off-by: Luis Henriques <luis.henriques@canonical.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 b195fdb1effc..7f4a4412b2fc 100644
    --- a/drivers/usb/core/quirks.c
    +++ b/drivers/usb/core/quirks.c
    @@ -165,6 +165,9 @@ 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 */
    };

    --
    2.1.3


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