ASoC: SOF: Intel: MTL: Enable DMI L1

DMI L1 should be enabled unconditionally after FW boot is complete.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230220075804.4829-4-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/mtl.c

@@ -280,6 +280,9 @@ static int mtl_dsp_post_fw_run(struct snd_sof_dev *sdev)
 	}
 
 	hda_sdw_int_enable(sdev, true);
+
+	/* enable DMI L1 */
+	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, MTL_EM2, MTL_EM2_L1SEN, MTL_EM2_L1SEN);
 	return 0;
 }
 

sound/soc/sof/intel/mtl.h

@@ -28,6 +28,8 @@
 #define MTL_HFINTIPPTR_PTR_MASK		GENMASK(20, 0)
 
 #define MTL_HDA_VS_D0I3C		0x1D4A
+#define MTL_EM2				0x1c44
+#define MTL_EM2_L1SEN			BIT(13)
 
 #define MTL_DSP2CXCAP_PRIMARY_CORE	0x178D00
 #define MTL_DSP2CXCTL_PRIMARY_CORE	0x178D04