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ASoC: SOF: Intel: hda-mlink: add helper to offload link ownership

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For DMIC and SSP, the DSP will be responsible for programming the
blobs and link registers.

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/20230404104127.5629-18-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2023-04-04 13:41:26 +03:00 committed by Mark Brown
parent 2b864e969b
commit 82958c406d
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 43 additions and 0 deletions
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7
include/sound/hda-mlink.h
View File

@ -52,6 +52,8 @@ int hda_bus_ml_suspend(struct hdac_bus *bus);
struct hdac_ext_link *hdac_bus_eml_ssp_get_hlink(struct hdac_bus *bus);
struct hdac_ext_link *hdac_bus_eml_dmic_get_hlink(struct hdac_bus *bus);
int hdac_bus_eml_enable_offload(struct hdac_bus *bus, bool alt, int elid, bool enable);
#else
static inline int
@ -151,4 +153,9 @@ hdac_bus_eml_ssp_get_hlink(struct hdac_bus *bus) { return NULL; }
static inline struct hdac_ext_link *
hdac_bus_eml_dmic_get_hlink(struct hdac_bus *bus) { return NULL; }
static inline int
hdac_bus_eml_enable_offload(struct hdac_bus *bus, bool alt, int elid, bool enable)
{
return 0;
}
#endif /* CONFIG_SND_SOC_SOF_HDA */

36
sound/soc/sof/intel/hda-mlink.c
View File

@ -333,6 +333,18 @@ static void hdaml_link_set_lsdiid(u32 __iomem *lsdiid, int dev_num)
writel(val, lsdiid);
}
static void hdaml_lctl_offload_enable(u32 __iomem *lctl, bool enable)
{
u32 val = readl(lctl);
if (enable)
val |= AZX_ML_LCTL_OFLEN;
else
val &= ~AZX_ML_LCTL_OFLEN;
writel(val, lctl);
}
/* END HDAML section */
static int hda_ml_alloc_h2link(struct hdac_bus *bus, int index)
@ -812,6 +824,30 @@ struct hdac_ext_link *hdac_bus_eml_dmic_get_hlink(struct hdac_bus *bus)
}
EXPORT_SYMBOL_NS(hdac_bus_eml_dmic_get_hlink, SND_SOC_SOF_HDA_MLINK);
int hdac_bus_eml_enable_offload(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 -ENODEV;
if (!h2link->ofls)
return 0;
hlink = &h2link->hext_link;
mutex_lock(&h2link->eml_lock);
hdaml_lctl_offload_enable(hlink->ml_addr + AZX_REG_ML_LCTL, enable);
mutex_unlock(&h2link->eml_lock);
return 0;
}
EXPORT_SYMBOL_NS(hdac_bus_eml_enable_offload, SND_SOC_SOF_HDA_MLINK);
#endif
MODULE_LICENSE("Dual BSD/GPL");