SDHI automatically sends CMD12 when the desired amount of data was transferred after multi block commands. However, the response from that CMD12 was never reported back to the mmc core, so that errors like ECC might go unnoticed. This series aims to fix that and clean up minor issues on the way when dealing with the autocmd12 feature. So far, I could only test that the success case was reported back to the MMC core [1]. An error case (like ECC) could not be created yet, but I will keep on trying. However, the initial flaw of the CMD12 response not reported back is fixed with this series as the success case demonstrates. If an ECC error is not properly handled, it is a seperate issue anyway. So, I think this series could go in now. No pressure for 4.11, though. But would be nice, of course ;)
The patches are based on mmc-next. A branch can be found here: git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/topic/sdhi-autocmd12-resp Thanks and all the best, Wolfram [1] http://elinux.org/Tests:SDHI-autocmd12-responses Wolfram Sang (4): mmc: host: tmio: use defines for CTL_STOP_INTERNAL_ACTION values mmc: host: tmio: fix minor typos in a comment mmc: host: tmio: don't BUG on unsupported stop commands mmc: host: tmio: fill in response from auto cmd12 drivers/mmc/host/tmio_mmc.h | 6 +++++- drivers/mmc/host/tmio_mmc_pio.c | 16 ++++++++++------ 2 files changed, 15 insertions(+), 7 deletions(-) -- 2.11.0
