mmc: sdio: enable runtime PM for SDIO functions
authorOhad Ben-Cohen <ohad@wizery.com>
Sat, 2 Oct 2010 11:54:11 +0000 (13:54 +0200)
committerChris Ball <cjb@laptop.org>
Sat, 23 Oct 2010 13:11:18 +0000 (21:11 +0800)
commit40bba0c1ca83a370f749c8bc9afda71cf79ebd91
tree1d2725b031284717468b22b90df59d5939506187
parent81968561bd69536c82be7ee654b04c68cd3e1746
mmc: sdio: enable runtime PM for SDIO functions

Enable runtime PM for SDIO functions.

SDIO functions are initialized with a disabled runtime PM state,
and are set active (and their usage count is incremented)
only before potential drivers are probed.

SDIO function drivers that support runtime PM should call
pm_runtime_put_noidle() in their probe routine, and
pm_runtime_get_noresume() in their remove routine (very
similarly to PCI drivers).

In case a matching driver does not support runtime PM, power will
always be kept high (since the usage count is positive).

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Tested-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
drivers/mmc/core/sdio.c
drivers/mmc/core/sdio_bus.c