mmc: core: sdio: hold retuning if sdio in 1-bit mode

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tuning only support in 4-bit mode or 8 bit mode, so in 1-bit mode,
need to hold retuning.

Find this issue when use manual tuning method on imx93. When system
resume back, SDIO WIFI try to switch back to 4 bit mode, first will
trigger retuning, and all tuning command failed.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: dfa13ebbe3 ("mmc: host: Add facility to support re-tuning")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230830093922.3095850-1-haibo.chen@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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Haibo Chen 2023-08-30 17:39:22 +08:00 • committed by Ulf Hansson

parent 1bbac8d6af

commit 32a9cdb886

1 changed files with 7 additions and 1 deletions

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drivers/mmc/core/sdio.c

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