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ASoC: SOF: Intel: hda-mlink: add convenience helpers for SoundWire PM 

The updated SoundWire Intel driver will need to rely on Extended
HDaudio links for power management, but it doesn't need to be aware of
all the HDaudio structures. Add convenience helpers to avoid polluting
SoundWire drivers too much with HDaudio information.

Since the SoundWire/Intel solution already takes the lock at a higher
level, the _unlocked PM helpers are used.

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/20230404104127.5629-10-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2023-04-04 13:41:18 +03:00 committed by Mark Brown
parent fc7dab8ec0
commit 725218f1d8
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GPG Key ID: 24D68B725D5487D0
2 changed files with 21 additions and 0 deletions
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9
include/sound/hda-mlink.h
View File

@ -19,6 +19,9 @@ int hdac_bus_eml_power_up_unlocked(struct hdac_bus *bus, bool alt, int elid, int
int hdac_bus_eml_power_down(struct hdac_bus *bus, bool alt, int elid, int sublink);
int hdac_bus_eml_power_down_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink);
int hdac_bus_eml_sdw_power_up_unlocked(struct hdac_bus *bus, int sublink);
int hdac_bus_eml_sdw_power_down_unlocked(struct hdac_bus *bus, int sublink);
void hda_bus_ml_put_all(struct hdac_bus *bus);
void hda_bus_ml_reset_losidv(struct hdac_bus *bus);
int hda_bus_ml_resume(struct hdac_bus *bus);
@ -55,6 +58,12 @@ hdac_bus_eml_power_down_unlocked(struct hdac_bus *bus, bool alt, int elid, int s
return 0;
}
static inline int
hdac_bus_eml_sdw_power_up_unlocked(struct hdac_bus *bus, int sublink) { return 0; }
static inline int
hdac_bus_eml_sdw_power_down_unlocked(struct hdac_bus *bus, int sublink) { return 0; }
static inline void hda_bus_ml_put_all(struct hdac_bus *bus) { }
static inline void hda_bus_ml_reset_losidv(struct hdac_bus *bus) { }
static inline int hda_bus_ml_resume(struct hdac_bus *bus) { return 0; }

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

@ -414,6 +414,18 @@ int hdac_bus_eml_power_down_unlocked(struct hdac_bus *bus, bool alt, int elid, i
}
EXPORT_SYMBOL_NS(hdac_bus_eml_power_down_unlocked, SND_SOC_SOF_HDA_MLINK);
int hdac_bus_eml_sdw_power_up_unlocked(struct hdac_bus *bus, int sublink)
{
return hdac_bus_eml_power_up_unlocked(bus, true, AZX_REG_ML_LEPTR_ID_SDW, sublink);
}
EXPORT_SYMBOL_NS(hdac_bus_eml_sdw_power_up_unlocked, SND_SOC_SOF_HDA_MLINK);
int hdac_bus_eml_sdw_power_down_unlocked(struct hdac_bus *bus, int sublink)
{
return hdac_bus_eml_power_down_unlocked(bus, true, AZX_REG_ML_LEPTR_ID_SDW, sublink);
}
EXPORT_SYMBOL_NS(hdac_bus_eml_sdw_power_down_unlocked, SND_SOC_SOF_HDA_MLINK);
void hda_bus_ml_put_all(struct hdac_bus *bus)
{
struct hdac_ext_link *hlink;