From ac05a8a927e5a1027592d8f98510a511dadeed14 Mon Sep 17 00:00:00 2001
From: Hansem Ro <hansemro@outlook.com>
Date: Thu, 6 May 2021 13:27:10 -0700
Subject: [PATCH] Input: ili210x - add missing negation for touch indication on
 ili210x
Git-commit: ac05a8a927e5a1027592d8f98510a511dadeed14
References: git-fixes
Patch-mainline: v5.13-rc1

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: Oliver Neukum <oneukum@suse.com>
---
 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);