mmc: sdhci: Set SDHCI_POWER_ON with external vmmc
Host controllers lacking the required internal vmmc regulator may still follow the spec with regard to the LSB of SDHCI_POWER_CONTROL. Set the SDHCI_POWER_ON bit when vmmc is enabled to encourage the controller to to drive CMD, DAT, SDCLK. This fixes a regression observed on some Qualcomm and Nvidia boards caused by 52221610 mmc: sdhci: Improve external VDD regulator support. Fixes: 52221610 (mmc: sdhci: Improve external VDD regulator support) Signed-off-by: NTim Kryger <tim.kryger@gmail.com> Tested-by: NBjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
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