Jisheng Zhang 62cf983ad8 mmc: sdhci-pxav3: fix unbalanced clock issues during probe ... Commit 0dcaa2499b ("sdhci-pxav3: Fix runtime PM initialization") tries to fix one hang issue caused by calling sdhci_add_host() on a suspended device. The fix enables the clock twice, once by clk_prepare_enable() and another by pm_runtime_get_sync(), meaning that the clock will never be gated at runtime PM suspend. I observed the power consumption regression on Marvell BG2Q SoCs. In fact, the fix is not correct. There still be a very small window during which a runtime suspend might somehow occur after pm_runtime_enable() but before pm_runtime_get_sync(). This patch fixes all of the two problems by just incrementing the usage counter before pm_runtime_enable(). It also adjust the order of disabling runtime pm and storing the usage count in the error path to handle clock gating properly. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Cc: <stable@vger.kernel.org> # v3.11+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>		2015-01-19 09:56:31 +01:00
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card	mmc: core: always check status after reset	2015-01-19 09:56:27 +01:00
core	mmc: core: Move mmc_card_removed() into mmc_start_request()	2015-01-19 09:56:30 +01:00
host	mmc: sdhci-pxav3: fix unbalanced clock issues during probe	2015-01-19 09:56:31 +01:00
Kconfig	mmc: explicitly mention SDIO support in Kconfig	2008-10-12 11:04:36 +02:00
Makefile	mmc: sdhci-pci: add platform data	2012-01-11 23:58:47 -05:00