[PATCH 2/2] drm/edid: Add alternate clock for SMPTE 4K

Wayne Lin Wayne.Lin at amd.com
Tue Nov 12 07:53:07 UTC 2019


[Why]
In hdmi_mode_alternate_clock(), it adds an exception for VIC 4
mode (4096x2160 at 24) due to there is no alternate clock defined for
that mode in HDMI1.4b. But HDMI2.0 adds 23.98Hz for that mode.

[How]
Remove the exception

Signed-off-by: Wayne Lin <Wayne.Lin at amd.com>
---
 drivers/gpu/drm/drm_edid.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index fcd7ae29049d..ed2782c53a93 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3126,9 +3126,6 @@ static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code)
 static unsigned int
 hdmi_mode_alternate_clock(const struct drm_display_mode *hdmi_mode)
 {
-	if (hdmi_mode->vdisplay == 4096 && hdmi_mode->hdisplay == 2160)
-		return hdmi_mode->clock;
-
 	return cea_mode_alternate_clock(hdmi_mode);
 }
 
-- 
2.17.1



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