From: Hansem Ro <hansemro@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Fixes: e3559442afd2a ("ili210x - rework the touchscreen sample processing")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/touchscreen/ili210x.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -87,7 +87,7 @@ static bool ili210x_touchdata_to_coords(
unsigned int *x, unsigned int *y,
unsigned int *z)
{
- if (touchdata[0] & BIT(finger))
+ if (!(touchdata[0] & BIT(finger)))
return false;
*x = get_unaligned_be16(touchdata + 1 + (finger * 4) + 0);
