This patchset is step by step improving support for runtime PM in the mmc core
layer for sd and mmc. The sequence for how to handle suspend/resume while using
MMC_CAP_AGGRESSIVE_PM is now optimized to only perform actions when needed and
thus improving especially the suspend time.
The two first patches has been sent earlier to the mmc-list, but for convenience
I have decided to fold them in here instead. The old versions of these can be
dropped.
The final patch is adding a new host cap, MMC_CAP_RUNTIME_RESUME, which means
the resume is moved to be finalized at the runtime_resume. Using this feature
will have great impact on the total resume time for the platform.
Patches has been tested on ux500, using a various of combination of
MMC_CAP_RUNTIME_RESUME, MMC_CAP_AGGRESSIVE_PM and MMC_CAP_NONREMOVABLE. The
needed CONFIG_MMC_UNSAFE_RESUME has also been set.
Ulf Hansson (4):
mmc: Don't force card to active state when entering suspend/shutdown
mmc: core: Remove redundant mmc_power_up|off at runtime callbacks
mmc: core: Improve runtime PM support during suspend/resume for
sd/mmc
mmc: core: Add MMC_CAP_RUNTIME_RESUME to resume at runtime_resume
drivers/mmc/card/block.c | 2 -
drivers/mmc/core/mmc.c | 94 ++++++++++++++++++++++++++++++++--------------
drivers/mmc/core/sd.c | 79 ++++++++++++++++++++++++++------------
include/linux/mmc/card.h | 4 ++
include/linux/mmc/host.h | 1 +
5 files changed, 125 insertions(+), 55 deletions(-)
--
1.7.9.5
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