mmc: jz4740: Add support for vqmmc power supply

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Support enabling / disabling the vqmmc power supply if it was provided
by the firmware.

Provide the .start_signal_voltage_switch callback to change the voltage
of the external vqmmc power supply.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20230131210229.68129-2-paul@crapouillou.net
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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Paul Cercueil 2023-01-31 21:02:29 +00:00 • committed by Ulf Hansson

parent fe3e137c6d

commit 152b5245e3

1 changed files with 37 additions and 1 deletions

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drivers/mmc/host/jz4740_mmc.c

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