We disable root clock in runtime pm to save power.
Patch 2~4 are some fixes needed for enable runtime pm or it may
break the UHS cards(SD3.0/eMMC4.5).
Below are some tests result i ran which passed mmc_test tool after enable rpm:
SDHC UHS1 on imx6q sabreauto
eMMC 4.5 on imx6sl evk
SDXC UHS1 on imx6sl evk
eMMC DDR on imx6q sabresd
SDHC on imx6q sabresd
ChangeLog:
v1->v2: only patch 5 changed. Add pm_runtime_set_active
based on Ulf's comments.
Dong Aisheng (5):
mmc: sdhci-pltfm: export pltfm suspend/resume api
mmc: sdhci-esdhc-imx: tuning bits should not be cleared during reset
mmc: sdhci-esdhc-imx: clear SDHCI_CTRL_EXEC_TUNING should not affect
other bits
mmc: sdhci-esdhc-imx: fix runtime pm unblance issue
mmc: sdhci-esdhc-imx: add runtime pm support
drivers/mmc/host/sdhci-esdhc-imx.c | 81 ++++++++++++++++++++++++++++++------
drivers/mmc/host/sdhci-pltfm.c | 6 ++-
drivers/mmc/host/sdhci-pltfm.h | 2 +
3 files changed, 74 insertions(+), 15 deletions(-)
--
1.7.2.rc3
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