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| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2024-08-19 08:55:47 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-08-19 12:25:52 +0100 |
| commit | d2234596be2192d9c1ae34f8c7534531191bc433 (patch) | |
| tree | f11c6f35342385104ce1aa2e85c49fb7f6eb28f3 /include/linux/soundwire/sdw_intel.h | |
| parent | b27404b2bbf951a11500525dea15681cc970226c (diff) | |
| download | linux-d2234596be2192d9c1ae34f8c7534531191bc433.tar.gz linux-d2234596be2192d9c1ae34f8c7534531191bc433.tar.bz2 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 'include/linux/soundwire/sdw_intel.h')
| -rw-r--r-- | include/linux/soundwire/sdw_intel.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/soundwire/sdw_intel.h b/include/linux/soundwire/sdw_intel.h index 87d82ea9a13a..cb8e7396b4db 100644 --- a/include/linux/soundwire/sdw_intel.h +++ b/include/linux/soundwire/sdw_intel.h @@ -388,6 +388,7 @@ struct sdw_intel; /* struct intel_sdw_hw_ops - SoundWire ops for Intel platforms. * @debugfs_init: initialize all debugfs capabilities * @debugfs_exit: close and cleanup debugfs capabilities + * @get_link_count: fetch link count from hardware registers * @register_dai: read all PDI information and register DAIs * @check_clock_stop: throw error message if clock is not stopped. * @start_bus: normal start @@ -412,6 +413,8 @@ struct sdw_intel_hw_ops { void (*debugfs_init)(struct sdw_intel *sdw); void (*debugfs_exit)(struct sdw_intel *sdw); + int (*get_link_count)(struct sdw_intel *sdw); + int (*register_dai)(struct sdw_intel *sdw); void (*check_clock_stop)(struct sdw_intel *sdw); |