ASoC: SOF: Intel: hda: add multi-link helper for LOSVID

Add new helper to deal with LOSVID.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20221027193540.259520-7-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/hda-ctrl.c

@@ -185,9 +185,6 @@ int hda_dsp_ctrl_clock_power_gating(struct snd_sof_dev *sdev, bool enable)
 int hda_dsp_ctrl_init_chip(struct snd_sof_dev *sdev)
 {
 	struct hdac_bus *bus = sof_to_bus(sdev);
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
-	struct hdac_ext_link *hlink;
-#endif
 	struct hdac_stream *stream;
 	int sd_offset, ret = 0;
 
@@ -269,11 +266,7 @@ int hda_dsp_ctrl_init_chip(struct snd_sof_dev *sdev)
 				  upper_32_bits(bus->posbuf.addr));
 	}
 
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
-	/* Reset stream-to-link mapping */
-	list_for_each_entry(hlink, &bus->hlink_list, list)
-		writel(0, hlink->ml_addr + AZX_REG_ML_LOSIDV);
-#endif
+	hda_bus_ml_reset_losidv(bus);
 
 	bus->chip_init = true;
 

sound/soc/sof/intel/hda-mlink.c

@@ -42,4 +42,13 @@ void hda_bus_ml_put_all(struct hdac_bus *bus)
 		snd_hdac_ext_bus_link_put(bus, hlink);
 }
 
+void hda_bus_ml_reset_losidv(struct hdac_bus *bus)
+{
+	struct hdac_ext_link *hlink;
+
+	/* Reset stream-to-link mapping */
+	list_for_each_entry(hlink, &bus->hlink_list, list)
+		writel(0, hlink->ml_addr + AZX_REG_ML_LOSIDV);
+}
+
 #endif

sound/soc/sof/intel/hda.h

@@ -746,11 +746,13 @@ static inline int hda_codec_i915_exit(struct snd_sof_dev *sdev) { return 0; }
 
 void hda_bus_ml_get_capabilities(struct hdac_bus *bus);
 void hda_bus_ml_put_all(struct hdac_bus *bus);
+void hda_bus_ml_reset_losidv(struct hdac_bus *bus);
 
 #else
 
 static inline void hda_bus_ml_get_capabilities(struct hdac_bus *bus) { }
 static inline void hda_bus_ml_put_all(struct hdac_bus *bus) { }
+static inline void hda_bus_ml_reset_losidv(struct hdac_bus *bus) { }
 
 #endif /* CONFIG_SND_SOC_SOF_HDA */