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mtd: mxc-nand: don't disable clock in mxcnd-suspend

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The clock must already be off after mtd->suspend.  Disabling it again
results in an negative overflow of the clock usage count.  This didn't
hurt as mxcnd_resume undid it after wake up.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Uwe Kleine-König 2010-01-11 17:53:16 +01:00 committed by David Woodhouse
parent b840bc11b5
commit 9c14b153e6
1 changed files with 6 additions and 4 deletions
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10
drivers/mtd/nand/mxc_nand.c
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@ -888,8 +888,12 @@ static int mxcnd_suspend(struct platform_device *pdev, pm_message_t state)
DEBUG(MTD_DEBUG_LEVEL0, "MXC_ND : NAND suspend\n");
ret = mtd->suspend(mtd);
/* Disable the NFC clock */
clk_disable(host->clk);
/*
* nand_suspend locks the device for exclusive access, so
* the clock must already be off.
*/
BUG_ON(!ret && host->clk_act);
return ret;
}
@ -903,8 +907,6 @@ static int mxcnd_resume(struct platform_device *pdev)
DEBUG(MTD_DEBUG_LEVEL0, "MXC_ND : NAND resume\n");
/* Enable the NFC clock */
clk_enable(host->clk);
mtd->resume(mtd);
return ret;