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authorLothar Waßmann <LW@KARO-electronics.de>2014-03-28 09:27:50 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2014-03-28 09:33:05 -0700
commitc0808467494318029f71185b42b61f1ae153afdc (patch)
treec1d1a19380fde1c1c301aa8a2d401aedd1e5846a /drivers/input
parentdac90dc23211996286c3b934057d0df77cfef0b4 (diff)
downloadop-kernel-dev-c0808467494318029f71185b42b61f1ae153afdc.zip
op-kernel-dev-c0808467494318029f71185b42b61f1ae153afdc.tar.gz
Input: edt-ft5x06 - adjust delays to conform datasheet
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> Acked-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/touchscreen/edt-ft5x06.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 9d61f1e..fd18e58 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -635,7 +635,7 @@ static int edt_ft5x06_ts_reset(struct i2c_client *client,
return error;
}
- mdelay(5);
+ msleep(5);
gpio_set_value(tsdata->wake_pin, 1);
}
if (gpio_is_valid(tsdata->reset_pin)) {
@@ -650,9 +650,9 @@ static int edt_ft5x06_ts_reset(struct i2c_client *client,
return error;
}
- mdelay(50);
+ msleep(5);
gpio_set_value(tsdata->reset_pin, 1);
- mdelay(100);
+ msleep(300);
}
return 0;
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