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path: root/drivers/input/keyboard/sh_keysc.c
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Diffstat (limited to 'drivers/input/keyboard/sh_keysc.c')
-rw-r--r--drivers/input/keyboard/sh_keysc.c41
1 files changed, 37 insertions, 4 deletions
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
index 5c8a1bcf7ca..cea70e6a103 100644
--- a/drivers/input/keyboard/sh_keysc.c
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -219,6 +219,8 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev)
pdata->scan_timing, priv->iomem_base + KYCR1_OFFS);
iowrite16(0, priv->iomem_base + KYOUTDR_OFFS);
iowrite16(KYCR2_IRQ_LEVEL, priv->iomem_base + KYCR2_OFFS);
+
+ device_init_wakeup(&pdev->dev, 1);
return 0;
err5:
free_irq(irq, pdev);
@@ -253,17 +255,48 @@ static int __devexit sh_keysc_remove(struct platform_device *pdev)
return 0;
}
+static int sh_keysc_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+ unsigned short value;
+
+ value = ioread16(priv->iomem_base + KYCR1_OFFS);
+
+ if (device_may_wakeup(dev)) {
+ value |= 0x80;
+ enable_irq_wake(irq);
+ }
+ else
+ value &= ~0x80;
+
+ iowrite16(value, priv->iomem_base + KYCR1_OFFS);
+ return 0;
+}
+
+static int sh_keysc_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ int irq = platform_get_irq(pdev, 0);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(irq);
-#define sh_keysc_suspend NULL
-#define sh_keysc_resume NULL
+ return 0;
+}
+
+static struct dev_pm_ops sh_keysc_dev_pm_ops = {
+ .suspend = sh_keysc_suspend,
+ .resume = sh_keysc_resume,
+};
struct platform_driver sh_keysc_device_driver = {
.probe = sh_keysc_probe,
.remove = __devexit_p(sh_keysc_remove),
- .suspend = sh_keysc_suspend,
- .resume = sh_keysc_resume,
.driver = {
.name = "sh_keysc",
+ .pm = &sh_keysc_dev_pm_ops,
}
};