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author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2023-04-04 13:41:26 +0300 |
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committer | Mark Brown <broonie@kernel.org> | 2023-04-06 18:45:49 +0300 |
commit | 82958c406da4fec8f818826624c33cf2e62f4147 (patch) | |
tree | d33a21be66a8b6bab5b56ccc40c3821c39d863e5 /sound | |
parent | 2b864e969be29958eb810fb611d1eac50eb7104b (diff) | |
download | linux-82958c406da4fec8f818826624c33cf2e62f4147.tar.xz |
ASoC: SOF: Intel: hda-mlink: add helper to offload link ownership
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>
Diffstat (limited to 'sound')
-rw-r--r-- | sound/soc/sof/intel/hda-mlink.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-mlink.c b/sound/soc/sof/intel/hda-mlink.c index 06613c081410..b9ce07c38bb5 100644 --- a/sound/soc/sof/intel/hda-mlink.c +++ b/sound/soc/sof/intel/hda-mlink.c @@ -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"); |