Messages in this thread Patch in this message | | | From | Philip Avinash <> | Subject | [PATCH v2 2/4] arm: gpmc: Low power transition support | Date | Thu, 7 Feb 2013 18:06:56 +0530 |
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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 +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, -- 1.7.9.5
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