V4L/DVB: V4L2: sh_mobile_camera_ceu: add support for CSI2

Using CEU with CSI2 on SH-Mobile requires some special configuration of the
former. We also have to switch from calling only one subdev .s_mbus_fmt and
.try_mbus_fmt to calling all subdevices. Take care to increment CSI2 driver
use count to prevent it from unloading, while in use.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/media/sh_mobile_ceu.h b/include/media/sh_mobile_ceu.h
index b67747836878..80346a6d28a9 100644
--- a/include/media/sh_mobile_ceu.h
+++ b/include/media/sh_mobile_ceu.h
@@ -6,8 +6,11 @@
 #define SH_CEU_FLAG_HSYNC_LOW           (1 << 2) /* default High if possible */
 #define SH_CEU_FLAG_VSYNC_LOW           (1 << 3) /* default High if possible */
 
+struct device;
+
 struct sh_mobile_ceu_info {
         unsigned long flags;
+        struct device *csi2_dev;
 };
 
 #endif /* __ASM_SH_MOBILE_CEU_H__ */