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f614fb60a1
This adds a ->execute_hs400_tuning() host callback to enable optional support for host specific tuning for eMMC HS400 mode. Additionally, share mmc_get_ext_csd() through the public host headerfile, to allow it to be used by the host drivers, which is needed to support the HS400 tuning. Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com> Link: https://lore.kernel.org/r/20210917124803.22871-3-wenbin.mei@mediatek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>