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Commit 49f62249 authored by Anson Huang's avatar Anson Huang Committed by Dmitry Torokhov
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Input: egalax_ts - add system wakeup support 



This patch adds wakeup function support for egalax touch
screen, if "wakeup-source" is added to device tree's egalax
touch screen node, the wakeup function will be enabled, and
egalax touch screen will be able to wakeup system from suspend.

Signed-off-by: default avatarAnson Huang <Anson.Huang@nxp.com>
Reviewed-by: default avatarFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent b8a946d8

drivers/input/touchscreen/egalax_ts.c

+6 −0
Original line number Diff line number Diff line
@@ -241,6 +241,9 @@ static int __maybe_unused egalax_ts_suspend(struct device *dev) 
	struct i2c_client *client = to_i2c_client(dev);

	int ret;



	if (device_may_wakeup(dev))

		return enable_irq_wake(client->irq);



	ret = i2c_master_send(client, suspend_cmd, MAX_I2C_DATA_LEN);

	return ret > 0 ? 0 : ret;

}
@@ -249,6 +252,9 @@ static int __maybe_unused egalax_ts_resume(struct device *dev) 
{

	struct i2c_client *client = to_i2c_client(dev);



	if (device_may_wakeup(dev))

		return disable_irq_wake(client->irq);



	return egalax_wake_up_device(client);

}