From 448c7f3830ca283e485aa943279acea6bde8b270 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Sun, 1 Feb 2015 11:25:14 -0800 Subject: Input: MT - add support for balanced slot assignment Some devices are not fast enough to differentiate between a fast-moving contact and a new contact. This problem cannot be fully resolved because information is truly missing, but it is possible to safe-guard against obvious mistakes by restricting movement with a maximum displacement. The new problem formulation for dmax > 0 cannot benefit from the speedup for positive definite matrices, but since the convergence is faster, the result is about the same. For a handful of contacts, the latency difference is truly negligible. Suggested-by: Benjamin Tissoires Tested-by: Benjamin Tissoires Signed-off-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/bcm5974.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input/mouse/bcm5974.c') diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c index c329cdb0b91a..b10709f04615 100644 --- a/drivers/input/mouse/bcm5974.c +++ b/drivers/input/mouse/bcm5974.c @@ -564,7 +564,7 @@ static int report_tp_state(struct bcm5974 *dev, int size) dev->index[n++] = &f[i]; } - input_mt_assign_slots(input, dev->slots, dev->pos, n); + input_mt_assign_slots(input, dev->slots, dev->pos, n, 0); for (i = 0; i < n; i++) report_finger_data(input, dev->slots[i], -- cgit v1.2.1