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| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2015-01-20 22:13:21 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2015-02-12 08:22:18 +0100 |
| commit | bf44a4175e566c72ae2d01929f76a04a9e861e0d (patch) | |
| tree | 6938a44a9251186e4096ba02f96b49f7058f2a02 /drivers/dma/sh | |
| parent | dmaengine: shdmac: use SET_RUNTIME_PM_OPS() (diff) | |
| download | linux-bf44a4175e566c72ae2d01929f76a04a9e861e0d.tar.xz linux-bf44a4175e566c72ae2d01929f76a04a9e861e0d.zip | |
dmaengine: shdmac: extend PM methods
In order to make it possible to restore from hibernation not only in Linux but
also in e.g. U-Boot, we have to use sh_dmae_{suspend|resume}() for the {freeze|
thaw|restore}() PM methods. It's handy to achieve this with SIMPLE_DEV_PM_OPS()
macro; since that macro doesn't do anything when CONFIG_PM_SLEEP is undefined,
we don't need to #define sh_dmae_{suspend|resume} NULL anymore but we'll have to
enclose sh_dmae_{suspend|resume}() into the new #ifdef...
Based on original patch by Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/sh')
| -rw-r--r-- | drivers/dma/sh/shdmac.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c index 023344f7f78e..b2431aa30033 100644 --- a/drivers/dma/sh/shdmac.c +++ b/drivers/dma/sh/shdmac.c @@ -600,7 +600,9 @@ static int sh_dmae_runtime_resume(struct device *dev) return sh_dmae_rst(shdev); } +#endif +#ifdef CONFIG_PM_SLEEP static int sh_dmae_suspend(struct device *dev) { return 0; @@ -632,14 +634,10 @@ static int sh_dmae_resume(struct device *dev) return 0; } -#else -#define sh_dmae_suspend NULL -#define sh_dmae_resume NULL #endif static const struct dev_pm_ops sh_dmae_pm = { - .suspend = sh_dmae_suspend, - .resume = sh_dmae_resume, + SET_SYSTEM_SLEEP_PM_OPS(sh_dmae_suspend, sh_dmae_resume) SET_RUNTIME_PM_OPS(sh_dmae_runtime_suspend, sh_dmae_runtime_resume, NULL) }; |