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(parent: 27902c1) | patch
mmc: tmio: add support for the VccQ regulator
authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Fri, 15 Feb 2013 15:14:00 +0000 (16:14 +0100)
committerChris Ball <cjb@laptop.org>
Sun, 24 Feb 2013 19:37:24 +0000 (14:37 -0500)
commit619b08d45a40229040d6db8c9fb1f40b7e58b71f
tree8615eb31a5c4f751c7fc87cd7fbbaffaa7b4fbebtree | snapshot
parent27902c14aa2376d53755b6c02e3be671fd890e30commit | diff
mmc: tmio: add support for the VccQ regulator

Some SD/MMC interfaces use 2 power regulators: one to power the card itself
(Vcc) and another one to pull signal lines up (VccQ). In case of eMMC and
UHS SD cards the regulators also have to be configured to supply different
voltages. The preferred order of turning supply power on and off is to
turn Vcc first on and last off.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
drivers/mmc/host/tmio_mmc_pio.c diff | blob | history
Domain: System / Kernel;