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Commit 1a3ed0dc authored by Alex Leibovich's avatar Alex Leibovich Committed by Ulf Hansson
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mmc: sdhci-xenon: fix 1.8v regulator stabilization



Automatic Clock Gating is a feature used for the power consumption
optimisation. It turned out that during early init phase it may prevent the
stable voltage switch to 1.8V - due to that on some platforms an endless
printout in dmesg can be observed: "mmc1: 1.8V regulator output did not
became stable" Fix the problem by disabling the ACG at very beginning of
the sdhci_init and let that be enabled later.

Fixes: 3a3748db ("mmc: sdhci-xenon: Add Marvell Xenon SDHC core functionality")
Signed-off-by: default avatarAlex Leibovich <alexl@marvell.com>
Signed-off-by: default avatarMarcin Wojtas <mw@semihalf.com>
Cc: stable@vger.kernel.org
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20201211141656.24915-1-mw@semihalf.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent ca1219c0
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