[alsa-devel] [PATCH 5/5] ASoC: omap-hdmi-audio: Fix invalid combination of DM_INH and CA

[Jyri Sarha]

From: Misael Lopez Cruz <misael.lopez at ti.com>

DM_INH = 1 (stereo downmix prohibited) and CA = 0x00 (Channel
Allocation: FR, FL) is an invalid combination according to the
HDMI Compliance Test 7.31 "Audio InfoFrame".

Signed-off-by: Misael Lopez Cruz <misael.lopez at ti.com>
Signed-off-by: Jyri Sarha <jsarha at ti.com>
---
 sound/soc/omap/omap-hdmi-audio.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/omap/omap-hdmi-audio.c b/sound/soc/omap/omap-hdmi-audio.c
index 8df303f..aeef25c 100644
--- a/sound/soc/omap/omap-hdmi-audio.c
+++ b/sound/soc/omap/omap-hdmi-audio.c
@@ -217,7 +217,11 @@ static int hdmi_dai_hw_params(struct snd_pcm_substream *substream,
 	else
 		cea->db4_ca = 0x13;
 
-	cea->db5_dminh_lsv = CEA861_AUDIO_INFOFRAME_DB5_DM_INH_PROHIBITED;
+	if (cea->db4_ca == 0x00)
+		cea->db5_dminh_lsv = CEA861_AUDIO_INFOFRAME_DB5_DM_INH_PERMITTED;
+	else
+		cea->db5_dminh_lsv = CEA861_AUDIO_INFOFRAME_DB5_DM_INH_PROHIBITED;
+
 	/* the expression is trivial but makes clear what we are doing */
 	cea->db5_dminh_lsv |= (0 & CEA861_AUDIO_INFOFRAME_DB5_LSV);
 
-- 
1.9.1