From: Pekon Gupta <pekon@ti.com>
To: linux-mtd@lists.infradead.org, linux-omap@vger.kernel.org,
tony@atomide.com
Cc: avinash philip <avinashphilip@ti.com>, Pekon Gupta <pekon@ti.com>
Subject: [PATCH v4 2/3] arm: gpmc: Low power transition support
Date: Wed, 12 Jun 2013 16:30:57 +0530 [thread overview]
Message-ID: <1371034858-19984-3-git-send-email-pekon@ti.com> (raw)
In-Reply-To: <1371034858-19984-1-git-send-email-pekon@ti.com>
From: avinash philip <avinashphilip@ti.com>
With GPMC converted to platform driver recently, adds low power
transition support in driver itself.
Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Pekon Gupta <pekon@ti.com>
---
arch/arm/mach-omap2/gpmc.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 1380cee..b5c4752 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -1655,6 +1655,24 @@ static int gpmc_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int gpmc_suspend(struct device *dev)
+{
+ omap3_gpmc_save_context();
+ pm_runtime_put_sync(dev);
+ return 0;
+}
+
+static int gpmc_resume(struct device *dev)
+{
+ pm_runtime_get_sync(dev);
+ omap3_gpmc_restore_context();
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(gpmc_pm_ops, gpmc_suspend, gpmc_resume);
+
static struct platform_driver gpmc_driver = {
.probe = gpmc_probe,
.remove = gpmc_remove,
@@ -1662,6 +1680,7 @@ static struct platform_driver gpmc_driver = {
.name = DEVICE_NAME,
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(gpmc_dt_ids),
+ .pm = &gpmc_pm_ops,
},
};
--
1.8.1
next prev parent reply other threads:[~2013-06-12 11:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-12 11:00 [PATCH v4 0/3] suspend/resume support for OMAP nand driver Pekon Gupta
2013-06-12 11:00 ` [PATCH v4 1/3] arm: gpmc: Converts GPMC driver to pm_runtime capable Pekon Gupta
2013-06-12 11:00 ` Pekon Gupta [this message]
2013-06-12 17:01 ` [PATCH v4 2/3] arm: gpmc: Low power transition support Tony Lindgren
2013-06-12 17:38 ` Tony Lindgren
2013-06-12 11:00 ` [PATCH v4 3/3] mtd: devices: elm: " Pekon Gupta
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