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ASoC: SOF: Intel: hda-mlink: add helper to get sublink LSDIID register

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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>
This commit is contained in:
Pierre-Louis Bossart 2023-08-07 16:09:56 -05:00 committed by Mark Brown
parent 9362ab78f1
commit 34e38f03d7
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 25 additions and 0 deletions
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4
include/sound/hda-mlink.h
View File

@ -42,6 +42,7 @@ int hdac_bus_eml_power_down_unlocked(struct hdac_bus *bus, bool alt, int elid, i
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);
int hdac_bus_eml_sdw_get_lsdiid_unlocked(struct hdac_bus *bus, int sublink, u16 *lsdiid);
int hdac_bus_eml_sdw_set_lsdiid(struct hdac_bus *bus, int sublink, int dev_num);
int hdac_bus_eml_sdw_map_stream_ch(struct hdac_bus *bus, int sublink, int y,
@ -145,6 +146,9 @@ 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 int
hdac_bus_eml_sdw_get_lsdiid_unlocked(struct hdac_bus *bus, int sublink, u16 *lsdiid) { return 0; }
static inline int
hdac_bus_eml_sdw_set_lsdiid(struct hdac_bus *bus, int sublink, int dev_num) { return 0; }

21
sound/soc/sof/intel/hda-mlink.c
View File

@ -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;