[PATCH] drm/radeon: Use correct value for unknown audio/video latency

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Valid values are 1 to 251 for 0 to 500 ms latency, 0 for unknown
and 255 for audio/video unsupported by sink, according to HDMI 1.3 spec.
Also matches Radeon HDA verb 0xf7b documentation.

Signed-off-by: Stefan Brüns <stefan.bruens@xxxxxxxxxxxxxx>
---
 drivers/gpu/drm/radeon/dce6_afmt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c
index e0a6e9e..2b14506 100644
--- a/drivers/gpu/drm/radeon/dce6_afmt.c
+++ b/drivers/gpu/drm/radeon/dce6_afmt.c
@@ -136,13 +136,13 @@ void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
 			tmp = VIDEO_LIPSYNC(connector->video_latency[1]) |
 				AUDIO_LIPSYNC(connector->audio_latency[1]);
 		else
-			tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
+			tmp = VIDEO_LIPSYNC(0) | AUDIO_LIPSYNC(0);
 	} else {
 		if (connector->latency_present[0])
 			tmp = VIDEO_LIPSYNC(connector->video_latency[0]) |
 				AUDIO_LIPSYNC(connector->audio_latency[0]);
 		else
-			tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
+			tmp = VIDEO_LIPSYNC(0) | AUDIO_LIPSYNC(0);
 	}
 	WREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC, tmp);
 }
-- 
1.8.4.5

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