v4l2: camera_proxy: Rationalize arguments to format helpers

To clarify code, adopt the following rules for format helpers:

- All variables representing V4L2 pixel formats shall use uint32_t
- All variables representing DRM pixel formats shall use PixelFormat
- Functions returning positive values only shall not have a signed
  return type

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

1 files changed, 5 insertions, 5 deletions

diff --git a/src/v4l2/v4l2_camera_proxy.h b/src/v4l2/v4l2_camera_proxy.h
index bef0f0af..3d702084 100644
--- a/src/v4l2/v4l2_camera_proxy.h
+++ b/src/v4l2/v4l2_camera_proxy.h
@@ -54,12 +54,12 @@ private:
 	int vidioc_streamon(int *arg);
 	int vidioc_streamoff(int *arg);
 
-	static int bplMultiplier(unsigned int format);
-	static int imageSize(unsigned int format, unsigned int width,
-			     unsigned int height);
+	static unsigned int bplMultiplier(uint32_t format);
+	static unsigned int imageSize(uint32_t format, unsigned int width,
+				      unsigned int height);
 
-	static unsigned int v4l2ToDrm(unsigned int pixelformat);
-	static unsigned int drmToV4L2(unsigned int pixelformat);
+	static PixelFormat v4l2ToDrm(uint32_t format);
+	static uint32_t drmToV4L2(PixelFormat format);
 
 	unsigned int refcount_;
 	unsigned int index_;