[PATCH 2/3] input: touchscreen: edt-ft5x06: assert reset during suspend

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



If the device is not configured as wakeup source, it can be put in reset
during suspend to save some power.

Signed-off-by: Daniel Mack <daniel@xxxxxxxxxx>
---
 drivers/input/touchscreen/edt-ft5x06.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 955f085627fa..c34a0b23f90a 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1036,9 +1036,12 @@ static int edt_ft5x06_ts_remove(struct i2c_client *client)
 static int __maybe_unused edt_ft5x06_ts_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
+	struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
 
 	if (device_may_wakeup(dev))
 		enable_irq_wake(client->irq);
+	else if (tsdata->reset_gpio)
+		gpiod_set_value_cansleep(tsdata->reset_gpio, 1);
 
 	return 0;
 }
@@ -1046,9 +1049,12 @@ static int __maybe_unused edt_ft5x06_ts_suspend(struct device *dev)
 static int __maybe_unused edt_ft5x06_ts_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
+	struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
 
 	if (device_may_wakeup(dev))
 		disable_irq_wake(client->irq);
+	else if (tsdata->reset_gpio)
+		gpiod_set_value_cansleep(tsdata->reset_gpio, 0);
 
 	return 0;
 }
-- 
2.14.3

--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Media Devel]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Linux Wireless Networking]     [Linux Omap]

  Powered by Linux