summaryrefslogtreecommitdiffstats
path: root/drivers/input
diff options
context:
space:
mode:
authorArnd Bergmann <arnd@arndb.de>2016-09-12 12:30:33 -0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-09-19 16:24:43 -0300
commit47d8e00ca3f9269498b4333d5c787f1442ebdbb6 (patch)
tree962db26e37d045e04205a4c2759f04e56298070e /drivers/input
parent7a4b9a29f8e5e16c28dbc56a8d2da7b6b3e482c7 (diff)
downloadlinux-47d8e00ca3f9269498b4333d5c787f1442ebdbb6.tar.bz2
[media] Input: synaptics-rmi4: disallow impossible configuration
The newly added debug mode for the synaptics-rmi4 driver relies on the v4l2 interface and vb2_vmalloc, but those might be configured as loadable modules when the driver itself is built-in, resulting in a link failure: drivers/input/rmi4/rmi_core.o: In function `rmi_f54_remove': rmi_f54.c:(.text.rmi_f54_remove+0x14): undefined reference to `video_unregister_device' rmi_f54.c:(.text.rmi_f54_remove+0x20): undefined reference to `v4l2_device_unregister' drivers/input/rmi4/rmi_core.o: In function `rmi_f54_vidioc_s_input': rmi_f54.c:(.text.rmi_f54_vidioc_s_input+0x10): undefined reference to `video_devdata' drivers/input/rmi4/rmi_core.o: In function `rmi_f54_vidioc_g_input': rmi_f54.c:(.text.rmi_f54_vidioc_g_input+0x10): undefined reference to `video_devdata' drivers/input/rmi4/rmi_core.o: In function `rmi_f54_vidioc_fmt': rmi_f54.c:(.text.rmi_f54_vidioc_fmt+0x10): undefined reference to `video_devdata' drivers/input/rmi4/rmi_core.o: In function `rmi_f54_vidioc_enum_input': rmi_f54.c:(.text.rmi_f54_vidioc_enum_input+0x10): undefined reference to `video_devdata' drivers/input/rmi4/rmi_core.o: In function `rmi_f54_vidioc_querycap': ... The best workaround I could come up with is to disallow the debug mode unless it's actually possible to call it. Fixes: 3a762dbd5347 ("[media] Input: synaptics-rmi4 - add support for F54 diagnostics") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/rmi4/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/rmi4/Kconfig b/drivers/input/rmi4/Kconfig
index f3418b65eb41..4c8a55857e00 100644
--- a/drivers/input/rmi4/Kconfig
+++ b/drivers/input/rmi4/Kconfig
@@ -65,7 +65,7 @@ config RMI4_F30
config RMI4_F54
bool "RMI4 Function 54 (Analog diagnostics)"
depends on RMI4_CORE
- depends on VIDEO_V4L2
+ depends on VIDEO_V4L2=y || (RMI4_CORE=m && VIDEO_V4L2=m)
select VIDEOBUF2_VMALLOC
help
Say Y here if you want to add support for RMI4 function 54