linux-stable/drivers/mmc
Christophe Kerello d8e193f13b mmc: mmci: stm32: Check when the voltage switch procedure should be done
If the card has not been power cycled, it may still be using 1.8V
signaling. This situation is detected in mmc_sd_init_card function and
should be handled in mmci stm32 variant.  The host->pwr_reg variable is
also correctly protected with spin locks.

Fixes: 94b94a93e3 ("mmc: mmci_sdmmc: Implement signal voltage callbacks")
Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210701143353.13188-1-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2021-08-04 12:46:02 +02:00
..
core mmc: core: Don't allocate IDA for OF aliases 2021-07-14 18:55:28 +02:00
host mmc: mmci: stm32: Check when the voltage switch procedure should be done 2021-08-04 12:46:02 +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