mmc: sdhci-acpi: Clear amd_sdhci_host on reset
The commit 61d7437e ("mmc: sdhci-acpi: Fix HS400 tuning for AMDI0040") broke resume for eMMC HS400. When the system suspends the eMMC controller is powered down. So, on resume we need to reinitialize the controller. Although, amd_sdhci_host was not getting cleared, so the DLL was never re-enabled on resume. This results in HS400 being non-functional. To fix the problem, this change clears the tuned_clock flag, clears the dll_enabled flag and disables the DLL on reset. Fixes: 61d7437e ("mmc: sdhci-acpi: Fix HS400 tuning for AMDI0040") Signed-off-by:Raul E Rangel <rrangel@chromium.org> Acked-by:
Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20200831150517.1.I93c78bfc6575771bb653c9d3fca5eb018a08417d@changeid Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org>
parent
f4d51dff
Please register or sign in to comment