From: Ville Syrjälä <ville.syrj...@linux.intel.com>
I think this should provide most of necessary logic for
adding aspecr ratios to the HDMI 4k modes.
Cc: Wayne Lin <wayne...@amd.com>
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/drm_edid.c | 37 +++++++++++++++++++++++++++++++------
1 file changed, 31 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index c7f9f7ca75a2..c76814edc784 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3210,6 +3210,11 @@ static enum hdmi_picture_aspect
drm_get_cea_aspect_ratio(const u8 video_code)
return edid_cea_modes[video_code].picture_aspect_ratio;
}
+static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code)
+{
+ return edid_4k_modes[video_code].picture_aspect_ratio;
+}
+
/*
* Calculate the alternate clock for HDMI modes (those from the HDMI vendor
* specific block).
@@ -3236,6 +3241,9 @@ static u8 drm_match_hdmi_mode_clock_tolerance(const
struct drm_display_mode *to_
if (!to_match->clock)
return 0;
+ if (to_match->picture_aspect_ratio)
+ match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
+
for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
unsigned int clock1, clock2;
@@ -3271,6 +3279,9 @@ static u8 drm_match_hdmi_mode(const struct
drm_display_mode *to_match)
if (!to_match->clock)
return 0;
+ if (to_match->picture_aspect_ratio)
+ match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
+
for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
unsigned int clock1, clock2;
@@ -5218,6 +5229,7 @@ drm_hdmi_avi_infoframe_from_display_mode(struct
hdmi_avi_infoframe *frame,
const struct drm_display_mode *mode)
{
enum hdmi_picture_aspect picture_aspect;
+ u8 vic, hdmi_vic;
int err;
if (!frame || !mode)
@@ -5230,7 +5242,8 @@ 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_mode_cea_vic(connector, mode);
+ vic = drm_mode_cea_vic(connector, mode);
+ hdmi_vic = drm_mode_hdmi_vic(connector, mode);
frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
@@ -5244,11 +5257,15 @@ drm_hdmi_avi_infoframe_from_display_mode(struct
hdmi_avi_infoframe *frame,
/*
* Populate picture aspect ratio from either
- * user input (if specified) or from the CEA mode list.
+ * user input (if specified) or from the CEA/HDMI mode lists.
*/
picture_aspect = mode->picture_aspect_ratio;
- if (picture_aspect == HDMI_PICTURE_ASPECT_NONE)
- picture_aspect = drm_get_cea_aspect_ratio(frame->video_code);
+ if (picture_aspect == HDMI_PICTURE_ASPECT_NONE) {
+ if (vic)
+ picture_aspect = drm_get_cea_aspect_ratio(vic);
+ else if (hdmi_vic)
+ picture_aspect = drm_get_hdmi_aspect_ratio(hdmi_vic);
+ }
/*
* The infoframe can't convey anything but none, 4:3
@@ -5256,12 +5273,20 @@ drm_hdmi_avi_infoframe_from_display_mode(struct
hdmi_avi_infoframe *frame,
* we can only satisfy it by specifying the right VIC.
*/
if (picture_aspect > HDMI_PICTURE_ASPECT_16_9) {
- if (picture_aspect !=
- drm_get_cea_aspect_ratio(frame->video_code))
+ if (vic) {
+ if (picture_aspect != drm_get_cea_aspect_ratio(vic))
+ return -EINVAL;
+ } else if (hdmi_vic) {
+ if (picture_aspect !=
drm_get_hdmi_aspect_ratio(hdmi_vic))
+ return -EINVAL;
+ } else {
return -EINVAL;
+ }
+
picture_aspect = HDMI_PICTURE_ASPECT_NONE;
}
+ frame->video_code = vic;
frame->picture_aspect = picture_aspect;
frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
--
2.21.0
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