From mboxrd@z Thu Jan 1 00:00:00 1970 From: avinashphilip@ti.com (Philip Avinash) Date: Wed, 23 Jan 2013 15:15:45 +0530 Subject: [PATCH 3/4] arm: gpmc: Low power transition support In-Reply-To: <1358933176-12409-1-git-send-email-avinashphilip@ti.com> References: <1358933176-12409-1-git-send-email-avinashphilip@ti.com> Message-ID: <1358934346-16822-4-git-send-email-avinashphilip@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org With GPMC converted to platform driver recently, adds low power transition support in driver itself. Signed-off-by: Philip Avinash --- 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 aed958a..af10617 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -1357,9 +1357,29 @@ 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(); + clk_disable_unprepare(gpmc_l3_clk); + return 0; +} + +static int gpmc_resume(struct platform_device *pdev) +{ + clk_prepare_enable(gpmc_l3_clk); + 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