[PATCHv3 2/2] mtd: m25p80: Add Power Management support

[Zhiqiang Hou]

From: Hou Zhiqiang <Zhiqiang.Hou at freescale.com>

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou at freescale.com>
---
V3:
 - No change.
V2:
 - Call spi_nor_suspend/resume instead of spi_nor_scan.

 drivers/mtd/devices/m25p80.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index c9c3b7f..016fe94 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -224,6 +224,26 @@ static int m25p_remove(struct spi_device *spi)
 	return mtd_device_unregister(&flash->spi_nor.mtd);
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int m25p_suspend(struct device *dev)
+{
+	struct m25p *flash = dev_get_drvdata(dev);
+	struct spi_nor *nor = &flash->spi_nor;
+
+	return spi_nor_suspend(nor);
+}
+
+static int m25p_resume(struct device *dev)
+{
+	struct m25p *flash = dev_get_drvdata(dev);
+	struct spi_nor *nor = &flash->spi_nor;
+
+	return spi_nor_resume(nor);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(m25p_pm_ops, m25p_suspend, m25p_resume);
+
 /*
  * Do NOT add to this array without reading the following:
  *
@@ -290,6 +310,7 @@ static struct spi_driver m25p80_driver = {
 	.driver = {
 		.name	= "m25p80",
 		.of_match_table = m25p_of_table,
+		.pm	= &m25p_pm_ops,
 	},
 	.id_table	= m25p_ids,
 	.probe	= m25p_probe,
-- 
2.1.0.27.g96db324