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Commit 46249ea6 authored by Anton Ekblad's avatar Anton Ekblad Committed by Dmitry Torokhov
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Input: appletouch - apply idle reset logic to all touchpads 



Not only Geyser 3 but also Geyser 1 need to be reset after they become
idle to stop them from needlessly waking up the kernel. Do idle reset
on all touchpads, regardless of their version - if we see 10 empty
packets the touchpad needs to be reset; good touchpads should not send
empty packets anyway.

Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 14e40206

drivers/input/mouse/appletouch.c

+11 −14
Original line number Diff line number Diff line
@@ -504,25 +504,22 @@ static void atp_complete(struct urb* urb) 
		memset(dev->xy_acc, 0, sizeof(dev->xy_acc));

	}



	/* Geyser 3 will continue to send packets continually after

	input_report_key(dev->input, BTN_LEFT, key);

	input_sync(dev->input);



	/* Many Geysers will continue to send packets continually after

	   the first touch unless reinitialised. Do so if it's been

	   idle for a while in order to avoid waking the kernel up

	   several hundred times a second */



	if (atp_is_geyser_3(dev)) {

	if (!x && !y && !key) {

		dev->idlecount++;

		if (dev->idlecount == 10) {

			dev->valid = 0;

			schedule_work(&dev->work);

		}

		}

		else

	} else

		dev->idlecount = 0;

	}



	input_report_key(dev->input, BTN_LEFT, key);

	input_sync(dev->input);



exit:

	retval = usb_submit_urb(dev->urb, GFP_ATOMIC);