| Message ID | 1361278219-23108-3-git-send-email-avinashphilip@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Philip Avinash <avinashphilip@ti.com> writes: > With GPMC converted to platform driver recently, adds low power > transition support in driver itself. > > Signed-off-by: Philip Avinash <avinashphilip@ti.com> > --- > Changes since v1: > Module disable & enable added using pm_runtime support. > > arch/arm/mach-omap2/gpmc.c | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c > index b1cd6c1..cc57988 100644 > --- a/arch/arm/mach-omap2/gpmc.c > +++ b/arch/arm/mach-omap2/gpmc.c > @@ -1361,9 +1361,29 @@ static __devexit int gpmc_remove(struct platform_device *pdev) > return 0; > } > > +#ifdef CONFIG_PM This should be CONFIG_PM_SLEEP for suspend/resume specific stuff. > +static int gpmc_suspend(struct platform_device *pdev, pm_message_t state) > +{ > + omap3_gpmc_save_context(); > + pm_runtime_put_sync(&pdev->dev); > + return 0; > +} > + > +static int gpmc_resume(struct platform_device *pdev) > +{ > + pm_runtime_get_sync(&pdev->dev); > + omap3_gpmc_restore_context(); > + return 0; > +} > +#endif > + > static struct platform_driver gpmc_driver = { > .probe = gpmc_probe, > .remove = __devexit_p(gpmc_remove), > +#ifdef CONFIG_PM > + .suspend = gpmc_suspend, > + .resume = gpmc_resume, > +#endif These are the legacy PM operations, you need to use the ones in the drivers struct dev_pm_ops. > .driver = { > .name = DEVICE_NAME, > .owner = THIS_MODULE, Kevin
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index b1cd6c1..cc57988 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -1361,9 +1361,29 @@ static __devexit int gpmc_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int gpmc_suspend(struct platform_device *pdev, pm_message_t state) +{ + omap3_gpmc_save_context(); + pm_runtime_put_sync(&pdev->dev); + return 0; +} + +static int gpmc_resume(struct platform_device *pdev) +{ + pm_runtime_get_sync(&pdev->dev); + omap3_gpmc_restore_context(); + return 0; +} +#endif + static struct platform_driver gpmc_driver = { .probe = gpmc_probe, .remove = __devexit_p(gpmc_remove), +#ifdef CONFIG_PM + .suspend = gpmc_suspend, + .resume = gpmc_resume, +#endif .driver = { .name = DEVICE_NAME, .owner = THIS_MODULE,
With GPMC converted to platform driver recently, adds low power transition support in driver itself. Signed-off-by: Philip Avinash <avinashphilip@ti.com> --- Changes since v1: Module disable & enable added using pm_runtime support. arch/arm/mach-omap2/gpmc.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)