HID: rmi: The address of query8 must be calculated based on which query registers are present
If a touchpad does not report relative data then query 6 will not be present and the address
of query 8 will be one less. This patches calculates the location of query 8 instead of
hardcoding the offset.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index a994477..b51200f 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -632,17 +632,6 @@
has_rel = !!(buf[0] & BIT(3));
has_gestures = !!(buf[0] & BIT(5));
- if (has_gestures) {
- /* query 8 to find out if query 10 exists */
- ret = rmi_read(hdev, data->f11.query_base_addr + 8, buf);
- if (ret) {
- hid_err(hdev, "can not read gesture information: %d.\n",
- ret);
- return ret;
- }
- has_query10 = !!(buf[0] & BIT(2));
- }
-
/*
* At least 4 queries are guaranteed to be present in F11
* +1 for query 5 which is present since absolute events are
@@ -653,8 +642,19 @@
if (has_rel)
++query_offset; /* query 6 is present */
- if (has_gestures)
+ if (has_gestures) {
+ /* query 8 to find out if query 10 exists */
+ ret = rmi_read(hdev,
+ data->f11.query_base_addr + query_offset + 1, buf);
+ if (ret) {
+ hid_err(hdev, "can not read gesture information: %d.\n",
+ ret);
+ return ret;
+ }
+ has_query10 = !!(buf[0] & BIT(2));
+
query_offset += 2; /* query 7 and 8 are present */
+ }
if (has_query9)
++query_offset;