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authorPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>2023-04-04 13:41:19 +0300
committerMark Brown <broonie@kernel.org>2023-04-06 18:45:42 +0300
commit6857c7ee202cf4b8224882bcee8e3b97c26b6484 (patch)
tree391459366fbe38eae0e2cdfdd8b269de4fd59f2d /sound
parent725218f1d8210ee6eba2c2e923ea26a312fb3f46 (diff)
downloadlinux-6857c7ee202cf4b8224882bcee8e3b97c26b6484.tar.xz
ASoC: SOF: Intel: hda-mlink: add helper to return sublink count
This is needed for SoundWire integration. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20230404104127.5629-11-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/sof/intel/hda-mlink.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-mlink.c b/sound/soc/sof/intel/hda-mlink.c
index 5045c10bed76..02743c342f28 100644
--- a/sound/soc/sof/intel/hda-mlink.c
+++ b/sound/soc/sof/intel/hda-mlink.c
@@ -328,6 +328,18 @@ find_ext2_link(struct hdac_bus *bus, bool alt, int elid)
return NULL;
}
+int hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid)
+{
+ struct hdac_ext2_link *h2link;
+
+ h2link = find_ext2_link(bus, alt, elid);
+ if (!h2link)
+ return 0;
+
+ return h2link->slcount;
+}
+EXPORT_SYMBOL_NS(hdac_bus_eml_get_count, SND_SOC_SOF_HDA_MLINK);
+
static int hdac_bus_eml_power_up_base(struct hdac_bus *bus, bool alt, int elid, int sublink,
bool eml_lock)
{