On Wed, May 15, 2019 at 08:23:46PM +0200, Wolfram Sang wrote:
> From: Takeshi Saito <takeshi.saito.xv@xxxxxxxxxxx>
>
> If an SCC error occurs during a read/write command execution, a false
> positive CRC error message is output.
>
> mmcblk0: response CRC error sending r/w cmd command, card status 0x900
>
> check_scc_error() checks SCC_RVSREQ.RVSERR bit. RVSERR detects a
> correction error in the next (up or down) delay tap position. However,
> since the command is successful, only retuning needs to be executed.
> This has been confirmed by HW engineers.
>
> Thus, on SCC error, set retuning flag instead of setting an error code.
>
> Fixes: b85fb0a1c8ae ("mmc: tmio: Fix SCC error detection")
> Signed-off-by: Takeshi Saito <takeshi.saito.xv@xxxxxxxxxxx>
> [wsa: updated comment and commit message, removed some braces]
> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
