Adrian Hunter 1a8eb6b373 mmc: sdhci-pci: Fix eMMC driver strength for BYT-based controllers ... BIOS writers have begun the practice of setting 40 ohm eMMC driver strength even though the eMMC may not support it, on the assumption that the kernel will validate the value against the eMMC (Extended CSD DRIVER_STRENGTH [offset 197]) and revert to the default 50 ohm value if 40 ohm is invalid. This is done to avoid changing the value for different boards. Putting aside the merits of this approach, it is clear the eMMC's mask of supported driver strengths is more reliable than the value provided by BIOS. Add validation accordingly. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Fixes: 51ced59cc0 ("mmc: sdhci-pci: Use ACPI DSM to get driver strength for some Intel devices") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200422111629.4899-1-adrian.hunter@intel.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>		2020-04-22 17:57:17 +02:00
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core	mmc: core: make mmc_interrupt_hpi() static	2020-04-20 09:24:39 +02:00
host	mmc: sdhci-pci: Fix eMMC driver strength for BYT-based controllers	2020-04-22 17:57:17 +02:00
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