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Commit 7cdcb8d1 authored by Roger Quadros's avatar Roger Quadros Committed by Dmitry Torokhov
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Input: pixcir_i2c_ts - implement wakeup from suspend 



Improve the suspend and resume handlers to allow the device
to wakeup the system from suspend.

Signed-off-by: default avatarRoger Quadros <rogerq@ti.com>
Acked-by: default avatarMugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 0dfc8d41

drivers/input/touchscreen/pixcir_i2c_ts.c

+43 −4
Original line number Original line Diff line number Diff line
@@ -264,21 +264,59 @@ static void pixcir_input_close(struct input_dev *dev) 
static int pixcir_i2c_ts_suspend(struct device *dev)

static int pixcir_i2c_ts_suspend(struct device *dev)

{

{

	struct i2c_client *client = to_i2c_client(dev);

	struct i2c_client *client = to_i2c_client(dev);

	struct pixcir_i2c_ts_data *ts = i2c_get_clientdata(client);

	struct input_dev *input = ts->input;

	int ret = 0;



	mutex_lock(&input->mutex);



	if (device_may_wakeup(&client->dev)) {

		if (!input->users) {

			ret = pixcir_start(ts);

			if (ret) {

				dev_err(dev, "Failed to start\n");

				goto unlock;

			}

		}





	if (device_may_wakeup(&client->dev))

		enable_irq_wake(client->irq);

		enable_irq_wake(client->irq);

	} else if (input->users) {

		ret = pixcir_stop(ts);

	}





	return 0;

unlock:

	mutex_unlock(&input->mutex);



	return ret;

}

}





static int pixcir_i2c_ts_resume(struct device *dev)

static int pixcir_i2c_ts_resume(struct device *dev)

{

{

	struct i2c_client *client = to_i2c_client(dev);

	struct i2c_client *client = to_i2c_client(dev);

	struct pixcir_i2c_ts_data *ts = i2c_get_clientdata(client);

	struct input_dev *input = ts->input;

	int ret = 0;





	if (device_may_wakeup(&client->dev))

	mutex_lock(&input->mutex);



	if (device_may_wakeup(&client->dev)) {

		disable_irq_wake(client->irq);

		disable_irq_wake(client->irq);





	return 0;

		if (!input->users) {

			ret = pixcir_stop(ts);

			if (ret) {

				dev_err(dev, "Failed to stop\n");

				goto unlock;

			}

		}

	} else if (input->users) {

		ret = pixcir_start(ts);

	}



unlock:

	mutex_unlock(&input->mutex);



	return ret;

}

}

#endif

#endif
@@ -366,6 +404,7 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client, 
	if (error)

	if (error)

		return error;

		return error;





	i2c_set_clientdata(client, tsdata);

	device_init_wakeup(&client->dev, 1);

	device_init_wakeup(&client->dev, 1);





	return 0;

	return 0;