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authorSarah Sharp <sarah.a.sharp@linux.intel.com>2009-08-07 17:04:55 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2009-09-23 09:46:17 -0400
commitac9d8fe7c6a8041cca5a0738915d2c4e21381421 (patch)
tree6ac3db149d39a61900e6df41ab9424f933a51489 /arch/m32r
parent82d1009f537c2a43be0a410abd33521f76ee3a5a (diff)
USB: xhci: Add quirk for Fresco Logic xHCI hardware.
This Fresco Logic xHCI host controller chip revision puts bad data into the output endpoint context after a Reset Endpoint command. It needs a Configure Endpoint command (instead of a Set TR Dequeue Pointer command) after the reset endpoint command. Set up the input context before issuing the Reset Endpoint command so we don't copy bad data from the output endpoint context. The HW also can't handle two commands queued at once, so submit the TRB for the Configure Endpoint command in the event handler for the Reset Endpoint command. Devices that stall on control endpoints before a configuration is selected will not work under this Fresco Logic xHCI host controller revision. This patch is for prototype hardware that will be given to other companies for evaluation purposes only, and should not reach consumer hands. Fresco Logic's next chip rev should have this bug fixed. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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