diff mbox series

[5.4,146/184] Input: ili210x - add missing negation for touch indication on ili210x

Message ID 20210510101954.913781725@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH May 10, 2021, 10:20 a.m. UTC 
From: Hansem Ro <hansemro@outlook.com>

commit ac05a8a927e5a1027592d8f98510a511dadeed14 upstream.

This adds the negation needed for proper finger detection on Ilitek
ili2107/ili210x. This fixes polling issues (on Amazon Kindle Fire)
caused by returning false for the cooresponding finger on the touchscreen.

Signed-off-by: Hansem Ro <hansemro@outlook.com>
Fixes: e3559442afd2a ("ili210x - rework the touchscreen sample processing")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/touchscreen/ili210x.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -109,7 +109,7 @@  static bool ili210x_touchdata_to_coords(
 	if (finger >= ILI210X_TOUCHES)
 		return false;
 
-	if (touchdata[0] & BIT(finger))
+	if (!(touchdata[0] & BIT(finger)))
 		return false;
 
 	*x = get_unaligned_be16(touchdata + 1 + (finger * 4) + 0);