This is a note to let you know that I've just added the patch titled
Input: synaptics - query min dimensions for fw v8.1
to the 3.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-synaptics-query-min-dimensions-for-fw-v8.1.patch
and it can be found in the queue-3.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ac097930f0730a9b777737de2b51e0fc49d2be7a Mon Sep 17 00:00:00 2001
From: Daniel Martin <consume.noise@xxxxxxxxx>
Date: Sun, 8 Mar 2015 22:28:40 -0700
Subject: Input: synaptics - query min dimensions for fw v8.1
From: Daniel Martin <consume.noise@xxxxxxxxx>
commit ac097930f0730a9b777737de2b51e0fc49d2be7a upstream.
Query the min dimensions even if the check
SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 fails, but we know that the
firmware version 8.1 is safe.
With that we don't need quirks for post-2013 models anymore as they expose
correct min and max dimensions.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=91541
Signed-off-by: Daniel Martin <consume.noise@xxxxxxxxx>
re-order the tests to check SYN_CAP_MIN_DIMENSIONS even on FW 8.1
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
Acked-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/mouse/synaptics.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -368,8 +368,14 @@ static int synaptics_resolution(struct p
}
}
- if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 &&
- SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) {
+ if (SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c) &&
+ (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 ||
+ /*
+ * Firmware v8.1 does not report proper number of extended
+ * capabilities, but has been proven to report correct min
+ * coordinates.
+ */
+ SYN_ID_FULL(priv->identity) == 0x801)) {
if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) {
psmouse_warn(psmouse,
"device claims to have min coordinates query, but I'm not able to read it.\n");
Patches currently in stable-queue which might be from consume.noise@xxxxxxxxx are
queue-3.19/input-synaptics-split-synaptics_resolution-query-first.patch
queue-3.19/input-synaptics-query-min-dimensions-for-fw-v8.1.patch
queue-3.19/input-synaptics-log-queried-and-quirked-dimension-values.patch
queue-3.19/input-synaptics-remove-obsolete-min-max-quirk-for-x240.patch
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