alsa-ucm-conf/0003-sof-hda-dsp-Support-systems-without-integrated-graph.patch

From 4722f5b3859903521ba0f92a64d86af31083ca50 Mon Sep 17 00:00:00 2001
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Date: Thu, 5 Mar 2020 14:59:56 +0200
Subject: [PATCH 3/3] sof-hda-dsp: Support systems without integrated graphics
 audio

On systems where integrated graphics audio is not present
or is disabled, the HDMI PCM nodes are disabled. Add rules to
detect these systems by checking presence of HDMI jack controls
with UCM2 rules.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
 ucm2/sof-hda-dsp/Hdmi.conf | 96 +++++++++++++++++++++++++++++-----------------
 1 file changed, 60 insertions(+), 36 deletions(-)

diff --git a/ucm2/sof-hda-dsp/Hdmi.conf b/ucm2/sof-hda-dsp/Hdmi.conf
index be6cb39945c5..6f2c4aa99db2 100644
--- a/ucm2/sof-hda-dsp/Hdmi.conf
+++ b/ucm2/sof-hda-dsp/Hdmi.conf
@@ -1,55 +1,79 @@
 # Use case Configuration for sof-hda-dsp
 
-SectionDevice."HDMI1" {
-	Comment "HDMI1/DP1 Output"
+If.hdmi1 {
+	Condition {
+		Type ControlExists
+		Control "iface=CARD,name='HDMI/DP,pcm=3 Jack'"
+	}
+	True {
+		SectionDevice."HDMI1" {
+			Comment "HDMI1/DP1 Output"
 
-	EnableSequence [
-		cset "name='IEC958 Playback Switch' on"
-	]
+			EnableSequence [
+				cset "name='IEC958 Playback Switch' on"
+			]
 
-	DisableSequence [
-		cset "name='IEC958 Playback Switch' off"
-	]
+			DisableSequence [
+				cset "name='IEC958 Playback Switch' off"
+			]
 
-	Value {
-		PlaybackPriority 500
-		PlaybackPCM "hw:${CardId},3"
-		JackControl "HDMI/DP,pcm=3 Jack"
+			Value {
+				PlaybackPriority 500
+				PlaybackPCM "hw:${CardId},3"
+				JackControl "HDMI/DP,pcm=3 Jack"
+			}
+		}
 	}
 }
 
-SectionDevice."HDMI2" {
-	Comment "HDMI2/DP2 Output"
+If.hdmi2 {
+	Condition {
+		Type ControlExists
+		Control "iface=CARD,name='HDMI/DP,pcm=4 Jack'"
+	}
+	True {
+		SectionDevice."HDMI2" {
+			Comment "HDMI2/DP2 Output"
 
-	EnableSequence [
-		cset "name='IEC958 Playback Switch',index=1 on"
-	]
+			EnableSequence [
+				cset "name='IEC958 Playback Switch',index=1 on"
+			]
 
-	DisableSequence [
-		cset "name='IEC958 Playback Switch',index=1 off"
-	]
+			DisableSequence [
+				cset "name='IEC958 Playback Switch',index=1 off"
+			]
 
-	Value {
-		PlaybackPriority 600
-		PlaybackPCM "hw:${CardId},4"
-		JackControl "HDMI/DP,pcm=4 Jack"
+			Value {
+				PlaybackPriority 600
+				PlaybackPCM "hw:${CardId},4"
+				JackControl "HDMI/DP,pcm=4 Jack"
+			}
+		}
 	}
 }
 
-SectionDevice."HDMI3" {
-	Comment "HDMI3/DP3 Output"
+If.hdmi3 {
+	Condition {
+		Type ControlExists
+		Control "iface=CARD,name='HDMI/DP,pcm=5 Jack'"
+	}
+	True {
+		SectionDevice."HDMI3" {
+			Comment "HDMI3/DP3 Output"
 
-	EnableSequence [
-		cset "name='IEC958 Playback Switch',index=2 on"
-	]
+			EnableSequence [
+				cset "name='IEC958 Playback Switch',index=2 on"
+			]
 
-	DisableSequence [
-		cset "name='IEC958 Playback Switch',index=2 off"
-	]
+			DisableSequence [
+				cset "name='IEC958 Playback Switch',index=2 off"
+			]
 
-	Value {
-		PlaybackPriority 700
-		PlaybackPCM "hw:${CardId},5"
-		JackControl "HDMI/DP,pcm=5 Jack"
+			Value {
+				PlaybackPriority 700
+				PlaybackPCM "hw:${CardId},5"
+				JackControl "HDMI/DP,pcm=5 Jack"
+			}
+		}
 	}
 }
-- 
2.16.4