From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Extract the logic to compute the final CEA VIC to a small helper.
We'll reorder it a bit to make future modifications more
straightforward. No function changes.
Cc: Wayne Lin <waynelin@xxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_edid.c | 53 +++++++++++++++++++++-----------------
1 file changed, 30 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 3df8267adab9..495b7fb4d9ef 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5160,6 +5160,35 @@ drm_hdmi_infoframe_set_hdr_metadata(struct hdmi_drm_infoframe *frame,
}
EXPORT_SYMBOL(drm_hdmi_infoframe_set_hdr_metadata);
+static u8 drm_mode_cea_vic(struct drm_connector *connector,
+ const struct drm_display_mode *mode)
+{
+ u8 vendor_if_vic = drm_match_hdmi_mode(mode);
+ bool is_s3d = mode->flags & DRM_MODE_FLAG_3D_MASK;
+ u8 vic;
+
+ /*
+ * HDMI spec says if a mode is found in HDMI 1.4b 4K modes
+ * we should send its VIC in vendor infoframes, else send the
+ * VIC in AVI infoframes. Lets check if this mode is present in
+ * HDMI 1.4b 4K modes
+ */
+ if (drm_valid_hdmi_vic(vendor_if_vic) && !is_s3d)
+ return 0;
+
+ vic = drm_match_cea_mode(mode);
+
+ /*
+ * HDMI 1.4 VIC range: 1 <= VIC <= 64 (CEA-861-D) but
+ * HDMI 2.0 VIC range: 1 <= VIC <= 107 (CEA-861-F). So we
+ * have to make sure we dont break HDMI 1.4 sinks.
+ */
+ if (!is_hdmi2_sink(connector) && vic > 64)
+ return 0;
+
+ return vic;
+}
+
/**
* drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
* data from a DRM display mode
@@ -5187,29 +5216,7 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
if (mode->flags & DRM_MODE_FLAG_DBLCLK)
frame->pixel_repeat = 1;
- frame->video_code = drm_match_cea_mode(mode);
-
- /*
- * HDMI 1.4 VIC range: 1 <= VIC <= 64 (CEA-861-D) but
- * HDMI 2.0 VIC range: 1 <= VIC <= 107 (CEA-861-F). So we
- * have to make sure we dont break HDMI 1.4 sinks.
- */
- if (!is_hdmi2_sink(connector) && frame->video_code > 64)
- frame->video_code = 0;
-
- /*
- * HDMI spec says if a mode is found in HDMI 1.4b 4K modes
- * we should send its VIC in vendor infoframes, else send the
- * VIC in AVI infoframes. Lets check if this mode is present in
- * HDMI 1.4b 4K modes
- */
- if (frame->video_code) {
- u8 vendor_if_vic = drm_match_hdmi_mode(mode);
- bool is_s3d = mode->flags & DRM_MODE_FLAG_3D_MASK;
-
- if (drm_valid_hdmi_vic(vendor_if_vic) && !is_s3d)
- frame->video_code = 0;
- }
+ frame->video_code = drm_mode_cea_vic(connector, mode);
frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
--
2.21.0
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