From: Daniel Martin <consume.noise@xxxxxxxxx>
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.
v2: Don't use a list for safe firmwares.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=91541
Signed-off-by: Daniel Martin <consume.noise@xxxxxxxxx>
---
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 7a78d75..0b7805c 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -368,8 +368,13 @@ 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_EXT_CAP_REQUESTS(priv->capabilities) >= 7 &&
+ SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) ||
+ /* 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");
--
2.2.2
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