| Message ID | 20160912152801.2972665-1-arnd@arndb.de |
|---|---|
| State | Accepted |
| Commit | 7a4b9a29f8e5e16c28dbc56a8d2da7b6b3e482c7 |
| Headers | show |
| Series | [1/2,media] Input: atmel_mxt: disallow impossible configuration | expand |
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index fce1e41ffe8b..ccf933969587 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -117,7 +117,8 @@ config TOUCHSCREEN_ATMEL_MXT config TOUCHSCREEN_ATMEL_MXT_T37 bool "Support T37 Diagnostic Data" - depends on TOUCHSCREEN_ATMEL_MXT && VIDEO_V4L2 + depends on TOUCHSCREEN_ATMEL_MXT + depends on VIDEO_V4L2=y || (TOUCHSCREEN_ATMEL_MXT=m && VIDEO_V4L2=m) select VIDEOBUF2_VMALLOC help Say Y here if you want support to output data from the T37
The newnly added debug mode for the atmel_mxt_ts 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/touchscreen/atmel_mxt_ts.o: In function `mxt_vidioc_querycap': atmel_mxt_ts.c:(.text.mxt_vidioc_querycap+0x10): undefined reference to `video_devdata' drivers/input/touchscreen/atmel_mxt_ts.o: In function `mxt_buffer_queue': atmel_mxt_ts.c:(.text.mxt_buffer_queue+0x20): undefined reference to `vb2_plane_vaddr' atmel_mxt_ts.c:(.text.mxt_buffer_queue+0x164): undefined reference to `vb2_buffer_done' drivers/input/touchscreen/atmel_mxt_ts.o: In function `mxt_free_object_table': atmel_mxt_ts.c:(.text.mxt_free_object_table+0x18): undefined reference to `video_unregister_device' atmel_mxt_ts.c:(.text.mxt_free_object_table+0x20): undefined reference to `v4l2_device_unregister' The best workaround I could come up with is to disallow the debug mode unless it's actually possible to call it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: ecfdd7e2660e ("[media] Input: atmel_mxt_ts - output diagnostic debug via V4L2 device") --- drivers/input/touchscreen/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html