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| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2023-08-08 00:09:56 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-08-08 01:09:46 +0300 |
| commit | 34e38f03d7e77141ef6879c69ca55fc2a44b9f2e (patch) | |
| tree | 955d3fffe4944a3659db15d1d52c3a6f692bee44 /sound/soc/sof/intel | |
| parent | 9362ab78f175db2003674e008ef1b8917725d502 (diff) | |
| download | linux-34e38f03d7e77141ef6879c69ca55fc2a44b9f2e.tar.xz | |
ASoC: SOF: Intel: hda-mlink: add helper to get sublink LSDIID register
We need to retrieve the current value to deal with the HDAudio
WAKEEN/WAKESTS setup.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Link: https://lore.kernel.org/r/20230807210959.506849-18-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/intel')
| -rw-r--r-- | sound/soc/sof/intel/hda-mlink.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-mlink.c b/sound/soc/sof/intel/hda-mlink.c index df87b3791c23..9fbbcc1744db 100644 --- a/sound/soc/sof/intel/hda-mlink.c +++ b/sound/soc/sof/intel/hda-mlink.c @@ -331,6 +331,11 @@ static bool hdaml_link_check_cmdsync(u32 __iomem *lsync, u32 cmdsync_mask) return !!(val & cmdsync_mask); } +static u16 hdaml_link_get_lsdiid(u16 __iomem *lsdiid) +{ + return readw(lsdiid); +} + static void hdaml_link_set_lsdiid(u16 __iomem *lsdiid, int dev_num) { u16 val; @@ -752,6 +757,22 @@ int hdac_bus_eml_sdw_power_down_unlocked(struct hdac_bus *bus, int sublink) } EXPORT_SYMBOL_NS(hdac_bus_eml_sdw_power_down_unlocked, SND_SOC_SOF_HDA_MLINK); +int hdac_bus_eml_sdw_get_lsdiid_unlocked(struct hdac_bus *bus, int sublink, u16 *lsdiid) +{ + struct hdac_ext2_link *h2link; + struct hdac_ext_link *hlink; + + h2link = find_ext2_link(bus, true, AZX_REG_ML_LEPTR_ID_SDW); + if (!h2link) + return -ENODEV; + + hlink = &h2link->hext_link; + + *lsdiid = hdaml_link_get_lsdiid(hlink->ml_addr + AZX_REG_ML_LSDIID_OFFSET(sublink)); + + return 0; +} EXPORT_SYMBOL_NS(hdac_bus_eml_sdw_get_lsdiid_unlocked, SND_SOC_SOF_HDA_MLINK); + int hdac_bus_eml_sdw_set_lsdiid(struct hdac_bus *bus, int sublink, int dev_num) { struct hdac_ext2_link *h2link; |