[coreboot-gerrit] Change in coreboot[master]: mb/google/volteer: add Audio changes for Max98357a & ALC5682I

[Nick Vaccaro (Code Review)]

Nick Vaccaro has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/39356 )

Change subject: mb/google/volteer: add Audio changes for Max98357a & ALC5682I
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mb/google/volteer: add Audio changes for Max98357a & ALC5682I

Add support for MAX98357a amplifier and ALC5682I codec on volteer.

BUG=b:144708516, b:148385924
TEST=none

Change-Id: I225faac68729b28be65b4d8f1f83769a874f84ff
Signed-off-by: Nick Vaccaro 
---
M src/mainboard/google/volteer/variants/baseboard/devicetree.cb
1 file changed, 14 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/56/39356/1

diff --git a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
index d44975f..65df68c 100644
--- a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
@@ -107,6 +107,20 @@
    	[PchSerialIoIndexUART2] = PchSerialIoDisabled,
    }"

+	# HD Audio
+	register "PchHdaDspEnable" = "1"
+	register "PchHdaAudioLinkHdaEnable" = "0"
+	register "PchHdaAudioLinkDmicEnable[0]" = "1"
+	register "PchHdaAudioLinkDmicEnable[1]" = "1"
+	register "PchHdaAudioLinkSspEnable[0]" = "1"
+	register "PchHdaAudioLinkSspEnable[1]" = "1"
+        # iDisp-Link T-Mode 0: 2T, 2: 4T, 3: 8T, 4: 16T
+	register "PchHdaIDispLinkTmode" = "2"
+        # iDisp-Link Freq 4: 96MHz, 3: 48MHz.
+	register "PchHdaIDispLinkFrequency" = "4"
+        # Not disconnected/enumerable
+	register "PchHdaIDispCodecDisconnect" = "0"
+
    # DP port
    register "DdiPortAConfig" = "1"	# eDP
    register "DdiPortBConfig" = "0"