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linux-stable/drivers/mmc
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Raul E Rangel 0f7b79a44e mmc: sdhci: sdhci-pci-o2micro: Correctly set bus width when tuning 
The O2Micro controller only supports tuning at 4-bits. So the host driver
needs to change the bus width while tuning and then set it back when done.

There was a bug in the original implementation in that mmc->ios.bus_width
also wasn't updated. Thus setting the incorrect blocksize in
sdhci_send_tuning which results in a tuning failure.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Fixes: 0086fc217d ("mmc: sdhci: Add support for O2 hardware tuning")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-06-18 13:38:06 +02:00
..
core mmc: core: Add sdio_retune_hold_now() and sdio_retune_release() 2019-06-18 13:30:32 +02:00
host mmc: sdhci: sdhci-pci-o2micro: Correctly set bus width when tuning 2019-06-18 13:38:06 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00