video/hdmi: Add a macro to return the size of a full infoframe

Cc: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index 0f3f82eadef7..bc6743e76e37 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -23,6 +23,9 @@ enum hdmi_infoframe_type {
 #define HDMI_SPD_INFOFRAME_SIZE    25
 #define HDMI_AUDIO_INFOFRAME_SIZE  10
 
+#define HDMI_INFOFRAME_SIZE(type)       \
+        (HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE)
+
 struct hdmi_any_infoframe {
         enum hdmi_infoframe_type type;
         unsigned char version;