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Input: ili210x - add missing negation for touch indication on ili210x

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commit ac05a8a927 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: e3559442af ("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>
This commit is contained in:
Hansem Ro 2021-05-06 13:27:10 -07:00 • committed by Greg Kroah-Hartman
commit 072f787e87
1 changed files with 1 additions and 1 deletions
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2
drivers/input/touchscreen/ili210x.c
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@ -87,7 +87,7 @@ static bool ili210x_touchdata_to_coords(const u8 *touchdata,
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);