mmc: tegra: Power on the calibration pad

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Automatic pad drive strength calibration is performed on a separate pad
identical to the ones used for driving the actual bus. Power on the
calibration pad during the calibration procedure and power it off
afterwards to save power.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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Aapo Vienamo 2018-08-30 18:06:15 +03:00 • committed by Ulf Hansson

parent 9d548f118f

commit 212b0cf141

1 changed files with 26 additions and 0 deletions

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drivers/mmc/host/sdhci-tegra.c

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