topology: sdw: Update echo ref channel number on max98373

yongzhi1 · lgirdwood · commit 2de506025f85 · 2020-10-20T10:38:06.000+01:00
The topology has two speaker amp configured, with voltage info
feedback-ed to host for each channel in the EchoRef, so update
SMART_REF_CH_NUM accordingly.

Signed-off-by: Yong Zhi &lt;yong.zhi@intel.com&gt;
diff --git a/tools/topology/sof-tgl-sdw-max98373-rt5682.m4 b/tools/topology/sof-tgl-sdw-max98373-rt5682.m4
@@ -65,7 +65,7 @@ define(`SMART_RX_CHANNELS', 4)
 define(`SMART_FB_CHANNELS', 4)
 # Ref capture related
 define(`SMART_REF_PPL_ID', 4)
-define(`SMART_REF_CH_NUM', 4)
+define(`SMART_REF_CH_NUM', 2)
 # PCM related
 define(`SMART_PCM_ID', 2)
 define(`SMART_PCM_NAME', `smart373-spk')
