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[PATCHv3,4/4] Input: edt-ft5x06 adjust reset delays according to datasheet

Message ID 1389961718-8130-5-git-send-email-LW@KARO-electronics.de (mailing list archive)
State New, archived
Headers show

Commit Message

Lothar Waßmann Jan. 17, 2014, 12:28 p.m. UTC
The FT5x06 datasheet specifies a minimum reset width of 5ms and a
delay between deassertion of reset and start of reporting of 300ms.
Adjust the delays to conform to the datasheet.

With the original delays I sometimes experienced communication
timeouts when initializing the controller.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
 drivers/input/touchscreen/edt-ft5x06.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
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diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index ec6b3e5..bd42845 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -653,9 +653,9 @@  static int edt_ft5x06_ts_reset(struct i2c_client *client,
 			return error;
-		mdelay(50);
+		mdelay(5);
 		gpio_set_value(tsdata->reset_pin, 1);
-		mdelay(100);
+		msleep(300);
 	return 0;