From: avinashphilip@ti.com (Philip Avinash)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/4] mtd: nand: omap2: Low power transition support
Date: Wed, 23 Jan 2013 15:15:46 +0530 [thread overview]
Message-ID: <1358934346-16822-5-git-send-email-avinashphilip@ti.com> (raw)
In-Reply-To: <1358933176-12409-1-git-send-email-avinashphilip@ti.com>
Add support for Low power transition support in nand driver. Also
ensures the current transaction finishes before going to low power mode
with _suspend support in mtd layer.
Signed-off-by: Philip Avinash <avinashphilip@ti.com>
---
drivers/mtd/nand/omap2.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 8e820dd..790215b 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -2103,9 +2103,28 @@ static int omap_nand_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM
+static int omap_nand_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct mtd_info *mtd = platform_get_drvdata(pdev);
+
+ mtd->_suspend(mtd);
+ return 0;
+}
+
+static int omap_nand_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+#endif
+
static struct platform_driver omap_nand_driver = {
.probe = omap_nand_probe,
.remove = omap_nand_remove,
+#ifdef CONFIG_PM
+ .suspend = omap_nand_suspend,
+ .resume = omap_nand_resume,
+#endif
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
--
1.7.9.5
prev parent reply other threads:[~2013-01-23 9:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-23 9:26 [PATCH 0/4] LOW power sleep support for OMAP nand driver Philip Avinash
2013-01-23 9:26 ` [PATCH 1/4] arch: arm: gpmc: gpmc migration support Philip Avinash
2013-02-01 22:05 ` Tony Lindgren
2013-02-06 11:38 ` Philip, Avinash
2013-01-23 9:45 ` [PATCH 2/4] mtd: devices: elm: Low power transition support Philip Avinash
2013-01-23 9:45 ` [PATCH 3/4] arm: gpmc: " Philip Avinash
2013-01-23 9:45 ` Philip Avinash [this message]
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