@@ -59,6 +59,7 @@ struct st1232_ts_data {
const struct st_chip_info *chip_info;
int read_buf_len;
u8 *read_buf;
+ bool suspended;
};
static int st1232_ts_read_data(struct st1232_ts_data *ts, u8 reg,
@@ -173,9 +174,13 @@ static int st1232_ts_parse_and_report(struct st1232_ts_data *ts)
static irqreturn_t st1232_ts_irq_handler(int irq, void *dev_id)
{
struct st1232_ts_data *ts = dev_id;
+ struct i2c_client *client = ts->client;
int count;
int error;
+ if (ts->suspended && device_may_wakeup(&client->dev))
+ pm_wakeup_event(&client->dev, 0);
+
error = st1232_ts_read_data(ts, REG_XY_COORDINATES, ts->read_buf_len);
if (error)
goto out;
@@ -344,10 +349,16 @@ static int st1232_ts_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct st1232_ts_data *ts = i2c_get_clientdata(client);
+ struct input_dev *input = ts->input_dev;
+
+ mutex_lock(&input->mutex);
+ ts->suspended = true;
if (!device_may_wakeup(&client->dev))
st1232_ts_power(ts, false);
+ mutex_unlock(&input->mutex);
+
return 0;
}
@@ -355,10 +366,16 @@ static int st1232_ts_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct st1232_ts_data *ts = i2c_get_clientdata(client);
+ struct input_dev *input = ts->input_dev;
+
+ mutex_lock(&input->mutex);
+ ts->suspended = false;
if (!device_may_wakeup(&client->dev))
st1232_ts_power(ts, true);
+ mutex_unlock(&input->mutex);
+
return 0;
}
This device driver provides wakeup capabilities but the wakeup events are not reflected in sysfs. Add pm_wakeup_event to the interrupt handler in order to do so. Signed-off-by: Javier Carrasco <javier.carrasco@wolfvision.net> --- drivers/input/touchscreen/st1232.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)