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dmaengine: dw: move PM to suspend_late / resume_early stages 

There is no need to use *_noirq version of suspend and resume PM callbacks. The
suspend_late / resume_early suit better (it was discussed in [1]) and in future
could be used for runtime PM support.

[1] http://www.spinics.net/lists/kernel/msg1650974.html

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Andy Shevchenko 2014-04-15 16:18:41 +03:00 committed by Vinod Koul
parent baca66f796
commit 067bd4fdfa
1 changed files with 4 additions and 14 deletions
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18
drivers/dma/dw/platform.c
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@ -256,7 +256,7 @@ MODULE_DEVICE_TABLE(acpi, dw_dma_acpi_id_table);
#ifdef CONFIG_PM_SLEEP #ifdef CONFIG_PM_SLEEP
static int dw_suspend_noirq(struct device *dev) static int dw_suspend_late(struct device *dev)
{ {
struct platform_device *pdev = to_platform_device(dev); struct platform_device *pdev = to_platform_device(dev);
struct dw_dma_chip *chip = platform_get_drvdata(pdev); struct dw_dma_chip *chip = platform_get_drvdata(pdev);
@ -264,7 +264,7 @@ static int dw_suspend_noirq(struct device *dev)
return dw_dma_suspend(chip); return dw_dma_suspend(chip);
} }
static int dw_resume_noirq(struct device *dev) static int dw_resume_early(struct device *dev)
{ {
struct platform_device *pdev = to_platform_device(dev); struct platform_device *pdev = to_platform_device(dev);
struct dw_dma_chip *chip = platform_get_drvdata(pdev); struct dw_dma_chip *chip = platform_get_drvdata(pdev);
@ -272,20 +272,10 @@ static int dw_resume_noirq(struct device *dev)
return dw_dma_resume(chip); return dw_dma_resume(chip);
} }
#else /* !CONFIG_PM_SLEEP */ #endif /* CONFIG_PM_SLEEP */
#define dw_suspend_noirq NULL
#define dw_resume_noirq NULL
#endif /* !CONFIG_PM_SLEEP */
static const struct dev_pm_ops dw_dev_pm_ops = { static const struct dev_pm_ops dw_dev_pm_ops = {
.suspend_noirq = dw_suspend_noirq, SET_LATE_SYSTEM_SLEEP_PM_OPS(dw_suspend_late, dw_resume_early)
.resume_noirq = dw_resume_noirq,
.freeze_noirq = dw_suspend_noirq,
.thaw_noirq = dw_resume_noirq,
.restore_noirq = dw_resume_noirq,
.poweroff_noirq = dw_suspend_noirq,
}; };
static struct platform_driver dw_driver = { static struct platform_driver dw_driver = {