[PATCH 1/2] ASoC: SOF: Intel: hda-mlink: expose unlocked interrupt enable routine

[Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>]

From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>

When the eml_lock is already taken, we need an unlocked version.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Liam Girdwood <liam.r.girdwood@xxxxxxxxx>
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
 include/sound/hda-mlink.h       |  4 ++++
 sound/soc/sof/intel/hda-mlink.c | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/include/sound/hda-mlink.h b/include/sound/hda-mlink.h
index 9ced94686ce3..6774f4b9e5fc 100644
--- a/include/sound/hda-mlink.h
+++ b/include/sound/hda-mlink.h
@@ -15,6 +15,7 @@ int hda_bus_ml_init(struct hdac_bus *bus);
 void hda_bus_ml_free(struct hdac_bus *bus);
 
 int hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid);
+void hdac_bus_eml_enable_interrupt_unlocked(struct hdac_bus *bus, bool alt, int elid, bool enable);
 void hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable);
 bool hdac_bus_eml_check_interrupt(struct hdac_bus *bus, bool alt, int elid);
 
@@ -71,6 +72,9 @@ static inline void hda_bus_ml_free(struct hdac_bus *bus) { }
 static inline int
 hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid) { return 0; }
 
+static inline void
+hdac_bus_eml_enable_interrupt_unlocked(struct hdac_bus *bus, bool alt, int elid, bool enable) { }
+
 static inline void
 hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable) { }
 
diff --git a/sound/soc/sof/intel/hda-mlink.c b/sound/soc/sof/intel/hda-mlink.c
index 9a3559c78b62..46f89d6d06f8 100644
--- a/sound/soc/sof/intel/hda-mlink.c
+++ b/sound/soc/sof/intel/hda-mlink.c
@@ -481,6 +481,24 @@ int hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid)
 }
 EXPORT_SYMBOL_NS(hdac_bus_eml_get_count, SND_SOC_SOF_HDA_MLINK);
 
+void hdac_bus_eml_enable_interrupt_unlocked(struct hdac_bus *bus, bool alt, int elid, bool enable)
+{
+	struct hdac_ext2_link *h2link;
+	struct hdac_ext_link *hlink;
+
+	h2link = find_ext2_link(bus, alt, elid);
+	if (!h2link)
+		return;
+
+	if (!h2link->intc)
+		return;
+
+	hlink = &h2link->hext_link;
+
+	hdaml_link_enable_interrupt(hlink->ml_addr + AZX_REG_ML_LCTL, enable);
+}
+EXPORT_SYMBOL_NS(hdac_bus_eml_enable_interrupt_unlocked, SND_SOC_SOF_HDA_MLINK);
+
 void hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable)
 {
 	struct hdac_ext2_link *h2link;
-- 
2.43.0