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Input: atmel_mxt_ts - don't report zero pressure from T9 

If T9.CTRL DISAMP is set, then pressure is reported as zero. This means
some app layers (eg tslib) will ignore the contact.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Nick Dyer 2018-07-27 11:49:10 -07:00 committed by Dmitry Torokhov
parent a4891f1058
commit 2ca3ba0ae4
1 changed files with 4 additions and 0 deletions
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4
drivers/input/touchscreen/atmel_mxt_ts.c
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@ -843,6 +843,10 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
mxt_input_sync(data);
}
/* if active, pressure must be non-zero */
if (!amplitude)
amplitude = MXT_PRESSURE_DEFAULT;
/* Touch active */
input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 1);
input_report_abs(input_dev, ABS_MT_POSITION_X, x);