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(-)
--- 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);