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authorArnd Bergmann <arnd@arndb.de>2018-05-25 11:25:11 -0400
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2018-06-05 09:46:45 -0400
commitee20a4459ee5afdc5c69725abd438e20cc4ac0ad (patch)
tree630995bba61eb906e51f2d12eb2938748614cda6 /drivers/media
parent0dc68cabdb626e33d02561529e6a4c681b72a784 (diff)
downloadlinux-ee20a4459ee5afdc5c69725abd438e20cc4ac0ad.tar.bz2
media: marvel-ccic: allow ccic and mmp drivers to coexist
Randconfig builds fail when one of the two is a built-in driver and the other one is a loadable module: drivers/media/platform/marvell-ccic/mcam-core.o: In function `mccic_register': mcam-core.c:(.text+0x2594): undefined reference to `__this_module' drivers/media/platform/marvell-ccic/mcam-core.o:(.rodata+0x50): undefined reference to `__this_module' The problem is that mcam-core.c can not be built both ways at the smae time. However, we can make kbuild take care of that by making the core driver a separate module, which can be either built-in or loadable as needed. Making it a separate module requires exporting a few symbols and adding the module license from the header. Fixes: 0a9c643c8faa ("media: marvel-ccic: re-enable mmp-driver build") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/marvell-ccic/Makefile9
-rw-r--r--drivers/media/platform/marvell-ccic/mcam-core.c9
2 files changed, 12 insertions, 6 deletions
diff --git a/drivers/media/platform/marvell-ccic/Makefile b/drivers/media/platform/marvell-ccic/Makefile
index 05a792c579a2..b3a4d0cdccb8 100644
--- a/drivers/media/platform/marvell-ccic/Makefile
+++ b/drivers/media/platform/marvell-ccic/Makefile
@@ -1,6 +1,5 @@
-obj-$(CONFIG_VIDEO_CAFE_CCIC) += cafe_ccic.o
-cafe_ccic-y := cafe-driver.o mcam-core.o
-
-obj-$(CONFIG_VIDEO_MMP_CAMERA) += mmp_camera.o
-mmp_camera-y := mmp-driver.o mcam-core.o
+obj-$(CONFIG_VIDEO_CAFE_CCIC) += cafe_ccic.o mcam-core.o
+cafe_ccic-y := cafe-driver.o
+obj-$(CONFIG_VIDEO_MMP_CAMERA) += mmp_camera.o mcam-core.o
+mmp_camera-y := mmp-driver.o
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index 80670eeee142..dfdbd4354b74 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -1720,6 +1720,7 @@ int mccic_irq(struct mcam_camera *cam, unsigned int irqs)
}
return handled;
}
+EXPORT_SYMBOL_GPL(mccic_irq);
/* ---------------------------------------------------------------------- */
/*
@@ -1830,7 +1831,7 @@ out_unregister:
v4l2_device_unregister(&cam->v4l2_dev);
return ret;
}
-
+EXPORT_SYMBOL_GPL(mccic_register);
void mccic_shutdown(struct mcam_camera *cam)
{
@@ -1850,6 +1851,7 @@ void mccic_shutdown(struct mcam_camera *cam)
v4l2_ctrl_handler_free(&cam->ctrl_handler);
v4l2_device_unregister(&cam->v4l2_dev);
}
+EXPORT_SYMBOL_GPL(mccic_shutdown);
/*
* Power management
@@ -1868,6 +1870,7 @@ void mccic_suspend(struct mcam_camera *cam)
}
mutex_unlock(&cam->s_mutex);
}
+EXPORT_SYMBOL_GPL(mccic_suspend);
int mccic_resume(struct mcam_camera *cam)
{
@@ -1898,4 +1901,8 @@ int mccic_resume(struct mcam_camera *cam)
}
return ret;
}
+EXPORT_SYMBOL_GPL(mccic_resume);
#endif /* CONFIG_PM */
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Jonathan Corbet <corbet@lwn.net>");