Input: reset device timestamp on sync (4370b231) · Commits · 戴 / test

We need to reset input device's timestamp on input_sync(), otherwise drivers not using input_set_timestamp() will end up with a stale timestamp after their clients consume first input event. Fixes: ("Input: allow drivers specify timestamp for input events") Reported-by:

John Stultz <john.stultz@linaro.org> Signed-off-by:

Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/input.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -397,6 +397,13 @@ static void input_handle_event(struct input_dev *dev,
		if (dev->num_vals >= 2)
		input_pass_values(dev, dev->vals, dev->num_vals);
		dev->num_vals = 0;
		/*
		* Reset the timestamp on flush so we won't end up
		* with a stale one. Note we only need to reset the
		* monolithic one as we use its presence when deciding
		* whether to generate a synthetic timestamp.
		*/
		dev->timestamp[INPUT_CLK_MONO] = ktime_set(0, 0);
		} else if (dev->num_vals >= dev->max_vals - 2) {
		dev->vals[dev->num_vals++] = input_value_sync;
		input_pass_values(dev, dev->vals, dev->num_vals);

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