AuxXxilium/linux_dsm_epyc7002
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61d7437ed1
linux_dsm_epyc7002/drivers/mmc
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Raul E Rangel 61d7437ed1 mmc: sdhci-acpi: Fix HS400 tuning for AMDI0040 
The AMD eMMC Controller can only use the tuned clock while in HS200 and
HS400 mode. If we switch to a different mode, we need to disable the
tuned clock. If we have previously performed tuning and switch back to
HS200 or HS400, we can re-enable the tuned clock.

Previously the tuned clock was not getting disabled when switching to
DDR52 which is part of the HS400 tuning sequence.

Fixes: 34597a3f60 ("mmc: sdhci-acpi: Add support for ACPI HID of AMD Controller with HS400")
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20200819125832.v2.1.Ie8f0689ec9f449203328b37409d1cf06b565f331@changeid
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-08-21 10:57:20 +02:00
..
core This tree adds the sched_set_fifo*() encapsulation APIs to remove 2020-08-06 11:55:43 -07:00
host mmc: sdhci-acpi: Fix HS400 tuning for AMDI0040 2020-08-21 10:57:20 +02:00
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