linux-kernel - [PATCH 2/3] pda_power: add suspend/resume support

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Message-ID: <20080106122839.GA13275@doriath.ww600.siemens.net>
Date:	Sun, 6 Jan 2008 15:28:39 +0300
From:	Dmitry Baryshkov <dbaryshkov@...il.com>
To:	cbouatmailru@...il.com, linux-kernel@...r.kernel.org, cbou@...l.ru,
	dwmw2@...radead.org
Subject: [PATCH 2/3] pda_power: add suspend/resume support

Add suspend/resume/wakeup support for pda_power.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@...il.com>

diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index d98622f..d1ebfa0 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -239,12 +239,44 @@ static int pda_power_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int pda_power_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	if (device_may_wakeup(&pdev->dev)) {
+		if (ac_irq)
+			enable_irq_wake(ac_irq->start);
+		if (usb_irq)
+			enable_irq_wake(usb_irq->start);
+	}
+
+	return 0;
+}
+
+static int pda_power_resume(struct platform_device *pdev)
+{
+	if (device_may_wakeup(&pdev->dev)) {
+		if (usb_irq)
+			disable_irq_wake(usb_irq->start);
+		if (ac_irq)
+			disable_irq_wake(ac_irq->start);
+	}
+
+	return 0;
+}
+#else
+#define pda_power_suspend	NULL
+#define pda_power_resume	NULL
+#endif
+
+
 static struct platform_driver pda_power_pdrv = {
 	.driver = {
 		.name = "pda-power",
 	},
 	.probe = pda_power_probe,
 	.remove = pda_power_remove,
+	.suspend = pda_power_suspend,
+	.resume = pda_power_resume,
 };
 
 static int __init pda_power_init(void)
-- 
With best wishes
Dmitry

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