topology2: sdw-dmic-generic: add eqiir to control DC offset

For some reason we had the EQIIR for topology1/IPC3 but we didn't add
it for topology2/IPC4.  All recordings show there's a strong DC offset
with RT722 and other codecs, so let's add this component by default in
the non-passthrough cases.

The widget is added in the scope of a pipeline, so that the
auto-generated instance is not handled at a global level.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

tools/topology/topology2/platform/intel/sdw-dmic-generic.conf

@@ -1,8 +1,10 @@
 # route and pipeline index start from pcm id * 10
 
 Define {
+	SDW_DMIC_CAPTURE_PCM_NAME	"Microphone"
 	SDW_DMIC_STREAM 'SDW3-Capture'
 	SDW_DMIC_BE_ID 4
+	SDW_DMIC_PASSTHROUGH "false"
 }
 
 Object.Dai.ALH [
@@ -71,6 +73,35 @@ Object.Widget {
 			priority	0
 			lp_mode	0
 			dynamic_pipeline 1
+
+			IncludeByKey.SDW_DMIC_PASSTHROUGH {
+				"false" {
+					Object.Widget.eqiir [
+						{
+							num_input_audio_formats 1
+							num_output_audio_formats 1
+							# index 41 is in	herited from the pipeline definition
+							Object.Base.input_audio_format [
+								{
+									in_bit_depth		32
+									in_valid_bit_depth	32
+								}
+							]
+							Object.Base.output_audio_format [
+								{
+									out_bit_depth		32
+									out_valid_bit_depth	32
+								}
+							]
+
+							Object.Control.bytes."1" {
+								<include/components/eqiir/highpass_40hz_0db_48khz.conf>
+								name '$SDW_DMIC_CAPTURE_PCM_NAME Capture IIR Eq'
+							}
+						}
+					]
+				}
+			}
 		}
 	]
 }
@@ -91,9 +122,25 @@ Object.PCM.pcm [
 	}
 ]
 
-Object.Base.route [
+IncludeByKey.SDW_DMIC_PASSTHROUGH {
+	"true" {
+		Object.Base.route [
 			{
 				source	"alh-copier.$SDW_DMIC_STREAM.0"
 				sink	"host-copier.4.capture"
 			}
-]
+		]
+	}
+	"false" {
+		Object.Base.route [
+			{
+				source	"alh-copier.$SDW_DMIC_STREAM.0"
+				sink	"eqiir.41.0"
+			}
+			{
+				source "eqiir.41.0"
+				sink	"host-copier.4.capture"
+			}
+		]
+	}
+}