[PATCH alsa-ucm-conf 5/8] codecs/rt5640: Unify capture volume for AIF1 and AIF2 recording paths

[Hans de Goede]

The rt5640 codec is sometimes used with AIF1 connected to the
SoC and sometimes with AIF2 connected to the SoC.

The rt5640 UCM configuration deals with this by accepting input from
and sending output to both AIFs, relying on the kernels DAPM framework to
disable parts of the graph which are connected to the unconnected AIF.

Before this commit codecs/rt5640/EnableSeq.conf was adding a +9dB
(digital) boost to recording going through the 'ADC' path to AIF1,
while not touching the 'Mono ADC' path to AIF2.

This was causing recordings on devices using AIF2 to be somewhat soft.

This commit unifies the record volume control settings for both paths by
only using the '[Mono ]ADC Capture Volume' control, which is present
in both paths and setting it to +9dB on both paths.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 ucm2/codecs/rt5640/EnableSeq.conf | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/ucm2/codecs/rt5640/EnableSeq.conf b/ucm2/codecs/rt5640/EnableSeq.conf
index 223cceb..8b30153 100644
--- a/ucm2/codecs/rt5640/EnableSeq.conf
+++ b/ucm2/codecs/rt5640/EnableSeq.conf
@@ -39,10 +39,14 @@ EnableSequence [
 	cset "name='Mono ADC R2 Mux' DMIC R1"
 	cset "name='Mono ADC Capture Switch' on"
 
-	# 47=0dB, 0.375 dB/step, set it to 6 dB to help with soft mics
-	cset "name='ADC Capture Volume' 63"
-	# Set ADC Boost Gain to 3dB higher vals result in too much noise
-	cset "name='ADC Boost Gain' 1"
+	# 47=0dB, 0.375 dB/step, set it to 9 dB to help with soft mics
+	cset "name='ADC Capture Volume' 71"
+	cset "name='Mono ADC Capture Volume' 71"
+
+	# The second 'Mono ADC' path does not have a 'Boost Gain',
+        # set this to 0dB so that the volume of the AIF1 and AIF2 paths is equal.
+	cset "name='ADC Boost Gain' 0"
+
 	# Set IN1/IN3 internal mic boost to 8 (max)
 	# Set IN2 headset-mic boost to 1, headset mics are quite loud
 	cset "name='IN1 Boost' 8"
-- 
2.30.1