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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-18 16:55:52 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-18 16:55:52 +0200
commit93467b31bec6da512b51544e5e4584f2745e995e (patch)
tree2ea2be38c5e4dc9aafffbbc0db5aae0f6513a1d9 /drivers/input/touchscreen/touchwin.c
parent8ca1f4c6fb1462ee120730ea75c19da10d2f2d6f (diff)
parent7a5cef0db4795d9d453a12e0f61b5b7634fc4d40 (diff)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/input/touchscreen/touchwin.c')
-rw-r--r--drivers/input/touchscreen/touchwin.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/input/touchscreen/touchwin.c b/drivers/input/touchscreen/touchwin.c
index 099fd88e65d8..3ed33378dfcd 100644
--- a/drivers/input/touchscreen/touchwin.c
+++ b/drivers/input/touchscreen/touchwin.c
@@ -63,12 +63,15 @@ static irqreturn_t tw_interrupt(struct serio *serio,
if (data) { /* touch */
tw->touched = 1;
tw->data[tw->idx++] = data;
- /* verify length and that the two Y's are the same */
- if (tw->idx == TW_LENGTH && tw->data[1] == tw->data[2]) {
- input_report_abs(dev, ABS_X, tw->data[0]);
- input_report_abs(dev, ABS_Y, tw->data[1]);
- input_report_key(dev, BTN_TOUCH, 1);
- input_sync(dev);
+ /* a full packet ends the accumulation, valid or not */
+ if (tw->idx == TW_LENGTH) {
+ /* report only if the two Y's are the same */
+ if (tw->data[1] == tw->data[2]) {
+ input_report_abs(dev, ABS_X, tw->data[0]);
+ input_report_abs(dev, ABS_Y, tw->data[1]);
+ input_report_key(dev, BTN_TOUCH, 1);
+ input_sync(dev);
+ }
tw->idx = 0;
}
} else if (tw->touched) { /* untouch */