From: Dong Aisheng <b29396@freescale.com>
To: linux-mmc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org, cjb@laptop.org,
shawn.guo@linaro.org, s.hauer@pengutronix.de,
b29396@freescale.com, wsa@the-dreams.de
Subject: [PATCH 4/5] mmc: sdhci-esdhc-imx: fix runtime pm unblance issue
Date: Wed, 30 Oct 2013 22:12:17 +0800 [thread overview]
Message-ID: <1383142338-25062-5-git-send-email-b29396@freescale.com> (raw)
In-Reply-To: <1383142338-25062-1-git-send-email-b29396@freescale.com>
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 blance.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
---
drivers/mmc/host/sdhci-esdhc-imx.c | 1 +
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 0bd99eb..da8026b 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;
--
1.7.2.rc3
next prev parent reply other threads:[~2013-10-30 14:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-30 14:12 [PATCH 0/5] mmc: sdhci-esdhc-imx: add runtime pm support Dong Aisheng
2013-10-30 14:12 ` [PATCH 1/5] mmc: sdhci-pltfm: export pltfm suspend/resume api Dong Aisheng
2013-10-30 14:12 ` [PATCH 2/5] mmc: sdhci-esdhc-imx: tuning bits should not be cleared during reset Dong Aisheng
2013-10-30 14:12 ` [PATCH 3/5] mmc: sdhci-esdhc-imx: clear SDHCI_CTRL_EXEC_TUNING should not affect other bits Dong Aisheng
2013-10-30 14:12 ` Dong Aisheng [this message]
2013-10-30 14:12 ` [PATCH 5/5] mmc: sdhci-esdhc-imx: add runtime pm support Dong Aisheng
2013-10-30 22:49 ` Ulf Hansson
2013-11-01 12:31 ` Dong Aisheng
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