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| author |   Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2019-08-21 13:58:21 -0500 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2019-08-23 12:02:56 +0530 |
| commit | 395713d8ca434967808670000e6baa3505e8e947 (patch) | |
| tree | 4a43fbc4a30f28f3fd1e3adddd9a709698974309 /drivers/soundwire/bus.c | |
| parent | soundwire: intel: add debugfs register dump (diff) | |
| download | linux-dev-395713d8ca434967808670000e6baa3505e8e947.tar.xz linux-dev-395713d8ca434967808670000e6baa3505e8e947.zip | |
soundwire: intel: handle disabled links
On most hardware platforms, SoundWire interfaces are pin-muxed with
other interfaces (typically DMIC or I2S) and the status of each link
needs to be checked at boot time.
For Intel platforms, the BIOS provides a menu to enable/disable the
links separately, and the information is provided to the OS with an
Intel-specific _DSD property. The same capability will be added to
revisions of the MIPI DisCo specification.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190821185821.12690-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire/bus.c')
0 files changed, 0 insertions, 0 deletions