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mmc: rtsx: add 74 Clocks in power on flow
commit 1f311c9 upstream. SD spec definition: "Host provides at least 74 Clocks before issuing first command" After 1ms for the voltage stable then start issuing the Clock signals if POWER STATE is MMC_POWER_OFF to MMC_POWER_UP to issue Clock signal to card MMC_POWER_UP to MMC_POWER_ON to stop issuing signal to card Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/1badf10aba764191a1a752edcbf90389@realtek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: Christian Löhle <CLoehle@hyperstone.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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