Commits
Ellen Wang committed 97d34ec136a
i2c: i801: recover from hardware PEC errors On a CRC error while using hardware-supported PEC, an additional error bit is set in the auxiliary status register. If this bit isn't cleared, all subsequent operations will fail, essentially hanging the controller. The fix is simple: check, report, and clear the bit in i801_check_post(). Also, in case the driver starts with the hardware in that state, clear it in i801_check_pre() as well. Signed-off-by: Ellen Wang <ellen@cumulusnetworks.com> Tested-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>