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| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2024-08-19 02:55:47 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-08-19 13:25:52 +0200 |
| commit | d2234596be2192d9c1ae34f8c7534531191bc433 (patch) | |
| tree | f11c6f35342385104ce1aa2e85c49fb7f6eb28f3 /drivers/soundwire/intel.h | |
| parent | ALSA/ASoC/SoundWire: Intel: use single definition for SDW_INTEL_MAX_LINKS (diff) | |
| download | linux-d2234596be2192d9c1ae34f8c7534531191bc433.tar.xz linux-d2234596be2192d9c1ae34f8c7534531191bc433.zip | |
soundwire: intel: add probe-time check on link id
In older platforms, the number of links was constant and hard-coded to
4. Newer platforms can have varying number of links, so we need to add
a probe-time check to make sure the ACPI-reported information with
_DSD properties is aligned with hardware capabilities reported in the
SoundWire LCAP register.
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20240819005548.5867-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/soundwire/intel.h')
| -rw-r--r-- | drivers/soundwire/intel.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/soundwire/intel.h b/drivers/soundwire/intel.h index 68838e843b54..1db4d9d3a3ba 100644 --- a/drivers/soundwire/intel.h +++ b/drivers/soundwire/intel.h @@ -222,6 +222,13 @@ static inline bool sdw_intel_sync_check_cmdsync_unlocked(struct sdw_intel *sdw) return false; } +static inline int sdw_intel_get_link_count(struct sdw_intel *sdw) +{ + if (SDW_INTEL_CHECK_OPS(sdw, get_link_count)) + return SDW_INTEL_OPS(sdw, get_link_count)(sdw); + return 4; /* default on older generations */ +} + /* common bus management */ int intel_start_bus(struct sdw_intel *sdw); int intel_start_bus_after_reset(struct sdw_intel *sdw); |