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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>
This commit is contained in:
Pierre-Louis Bossart 2023-04-04 13:41:19 +03:00 committed by Mark Brown
parent 725218f1d8
commit 6857c7ee20
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2 changed files with 17 additions and 0 deletions
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5
include/sound/hda-mlink.h
View File

@ -13,6 +13,8 @@ struct hdac_bus;
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);
int hdac_bus_eml_power_up(struct hdac_bus *bus, bool alt, int elid, int sublink);
int hdac_bus_eml_power_up_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink);
@ -34,6 +36,9 @@ hda_bus_ml_init(struct hdac_bus *bus) { return 0; }
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 int
hdac_bus_eml_power_up(struct hdac_bus *bus, bool alt, int elid, int sublink)
{

12
sound/soc/sof/intel/hda-mlink.c
View File

@ -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)
{