Messages in this thread Patch in this message | | | From | Benjamin Tissoires <> | Subject | [PATCH v4 3/6] Input: synaptics - Query min dimensions for fw v8.1 | Date | Fri, 6 Feb 2015 10:44:56 -0500 |
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From: Daniel Martin <consume.noise@gmail.com>
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
Cc: stable@vger.kernel.org Signed-off-by: Daniel Martin <consume.noise@gmail.com> re-order the tests to check SYN_CAP_MIN_DIMENSIONS even on FW 8.1 Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> --- v2: Don't use a list for safe firmwares.
drivers/input/mouse/synaptics.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 0485e6b..19dc87f 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -372,8 +372,13 @@ static int synaptics_resolution(struct psmouse *psmouse) } } - 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 doesn't stand the previous checks, though has + * been proven to report correct min coordinates. + * https://bugzilla.kernel.org/show_bug.cgi?id=91541 */ + (SYN_ID_MAJOR(priv->identity) == 8 && + SYN_ID_MINOR(priv->identity) == 1))) { 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"); -- 2.1.0
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