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authorDong Aisheng <b29396@freescale.com>2013-11-04 16:38:28 +0800
committerChris Ball <chris@printf.net>2014-01-13 12:48:09 -0500
commitce090a4eb9626272bfd2529520f2f16351029640 (patch)
tree1a268c86fa18352bc4ebb508ffa70c1680923c79
parent8b2bb0adce2c0cb63fcb77f4e54ac11ae54d84c0 (diff)
downloadop-kernel-dev-ce090a4eb9626272bfd2529520f2f16351029640.zip
op-kernel-dev-ce090a4eb9626272bfd2529520f2f16351029640.tar.gz
mmc: sdhci-esdhc-imx: fix runtime pm unbalance issue
Since we're using common esdhc_send_command for tuning commands and the core code will call pm_runtime_put after command is finished. So we add a pm_runtime_get_sync here to get the balance. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
-rw-r--r--drivers/mmc/host/sdhci-esdhc-imx.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index b1544a7..0ac4370 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -698,6 +698,7 @@ static void esdhc_prepare_tuning(struct sdhci_host *host, u32 val)
/* FIXME: delay a bit for card to be ready for next tuning due to errors */
mdelay(1);
+ pm_runtime_get_sync(host->mmc->parent);
reg = readl(host->ioaddr + ESDHC_MIX_CTRL);
reg |= ESDHC_MIX_CTRL_EXE_TUNE | ESDHC_MIX_CTRL_SMPCLK_SEL |
ESDHC_MIX_CTRL_FBCLK_SEL;
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