From ad3f360ef20f311721184e461a844f2d86abcc88 Mon Sep 17 00:00:00 2001 From: Hansem Ro Date: Thu, 6 May 2021 13:27:10 -0700 Subject: [PATCH] Input: ili210x - add missing negation for touch indication on ili210x 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 Fixes: e3559442afd2a ("ili210x - rework the touchscreen sample processing") Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/touchscreen/ili210x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c index f4ebdab06280..22839dde1d09 100644 --- a/drivers/input/touchscreen/ili210x.c +++ b/drivers/input/touchscreen/ili210x.c @@ -109,7 +109,7 @@ static bool ili210x_touchdata_to_coords(struct ili210x *priv, u8 *touchdata, 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);