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authorJiri Kosina <jkosina@suse.cz>2017-02-22 01:13:52 +0100
committerJiri Kosina <jkosina@suse.cz>2017-02-22 01:13:52 +0100
commit2fa299a917adb2db2d486b9e4a3072865ce70a03 (patch)
treef05b53af973fcec9994707d2d44abf8abb6545c1 /drivers
parent27a67e0f983567574ef659520d930f82cf65125a (diff)
downloadlinux-2fa299a917adb2db2d486b9e4a3072865ce70a03.tar.bz2
HID: rmi: fallback to generic/multitouch if hid-rmi is not built
Commit 279967a65b32 ("HID: rmi: Handle all Synaptics touchpads using hid-rmi") unconditionally switches over handling of all Synaptics touchpads to hid-rmi (to make use of extended features of the HW); in case CONFIG_HID_RMI is disabled though this renders the touchpad unusable, as the HID_DEVICE(HID_BUS_ANY, HID_GROUP_RMI, HID_ANY_ID, HID_ANY_ID) match doesn't exist and generic/multitouch doesn't bind to it either (due to hid group mismatch). Fix this by switching over to hid-rmi only if it has been actually built. Fixes: 279967a65b32 ("HID: rmi: Handle all Synaptics touchpads using hid-rmi") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/hid/hid-core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 538ff697a4cf..e9e87d337446 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -827,7 +827,8 @@ static int hid_scan_report(struct hid_device *hid)
* hid-rmi should take care of them,
* not hid-generic
*/
- hid->group = HID_GROUP_RMI;
+ if (IS_ENABLED(CONFIG_HID_RMI))
+ hid->group = HID_GROUP_RMI;
break;
}