kernel/drivers/input/mouse/cypress_ps2.c, branch linux-4.16.y

Input: mouse - drop unnecessary calls to input_set_drvdata

2017-01-23T01:22:28Z

Since there is no call to dev_get_drvdata() or input_get_drvdata(), the call to input_set_drvdata() is unnecessary and can be dropped. Signed-off-by: Guenter Roeck Signed-off-by: Dmitry Torokhov

Input: mouse - use local variables consistently

2017-01-22T07:52:22Z

If a function declares a variable to access a structure element, use it consistently. Signed-off-by: Guenter Roeck Signed-off-by: Dmitry Torokhov

Input: psmouse - use IS_ENABLED instead of homegrown code

2015-02-16T00:08:35Z

Instead of having various protocols provide _supported() functions, let's use IS_ENABLED() macro that works well in "if" statements. Acked-by: Hans de Goede Reviewed-by: Benjamin Tissoires Signed-off-by: Dmitry Torokhov

Input: MT - add support for balanced slot assignment

2015-02-01T19:50:35Z

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

Input: cypress_ps2 - don't report as a button pads

2014-03-26T20:33:58Z

The cypress PS/2 trackpad models supported by the cypress_ps2 driver emulate BTN_RIGHT events in firmware based on the finger position, as part of this no motion events are sent when the finger is in the button area. The INPUT_PROP_BUTTONPAD property is there to indicate to userspace that BTN_RIGHT events should be emulated in userspace, which is not necessary in this case. When INPUT_PROP_BUTTONPAD is advertised userspace will wait for a motion event before propagating the button event higher up the stack, as it needs current abs x + y data for its BTN_RIGHT emulation. Since in the cypress_ps2 pads don't report motion events in the button area, this means that clicks in the button area end up being ignored, so INPUT_PROP_BUTTONPAD actually causes problems for these touchpads, and removing it fixes: https://bugs.freedesktop.org/show_bug.cgi?id=76341 Reported-by: Adam Williamson Tested-by: Adam Williamson Reviewed-by: Peter Hutterer Signed-off-by: Hans de Goede Signed-off-by: Dmitry Torokhov

Input: delete non-required instances of include

2014-01-07T07:23:57Z

None of these files are actually using any __init type directives and hence don't need to include . Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - do not consider data bad if palm is detected

2013-10-31T15:40:22Z

If hardware (or firmware) detects palm on the surface of the device it does not mean that the data packet is bad from the protocol standpoint. Instead of reporting PSMOUSE_BAD_DATA in this case simply threat it as if nothing touches the surface. BugLink: http://bugs.launchpad.net/bugs/1229361 Signed-off-by: Joseph Salisbury Tested-by: Kamal Mostafa Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - remove useless cast

2013-10-31T08:01:30Z

Get rid of unnecessary (void *) casting in 'cypress_init' function. Signed-off-by: Geyslan G. Bem Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - remove casting the return value which is a void pointer

2013-09-18T14:51:18Z

Casting the return value which is a void pointer is redundant. The conversion from void pointer to any other pointer type is guaranteed by the C programming language. Signed-off-by: Jingoo Han Signed-off-by: Dmitry Torokhov

Input: cypress_ps2 - fix trackpadi found in Dell XPS12

2013-02-22T08:09:04Z

Avoid firmware glitch in Cypress PS/2 Trackpad firmware version 11 (as observed in Dell XPS12) which prevents driver from recognizing the trackpad. BugLink: http://launchpad.net/bugs/1103594 Signed-off-by: Kamal Mostafa Cc: Dudley Du Signed-off-by: Dmitry Torokhov