diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-23 09:12:15 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-23 09:12:15 +0200 |
commit | 575ec5e5e943aaea06a6043e87f9759066230039 (patch) | |
tree | 114cba2002b6f33980462d5f40ab4432ca3d9213 /Documentation/driver-api | |
parent | 7a4462a96777b64b22412f782de226c90290bf75 (diff) | |
parent | a81844034e5b382df6cc06bc2943ae24be797afd (diff) | |
download | linux-575ec5e5e943aaea06a6043e87f9759066230039.tar.bz2 |
Merge tag 'soundwire-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next
Vinod writes:
soundwire updates for 5.9-rc1
This contains few core changes and bunch of Intel driver updates:
- Adds definitions for 1.2 spec
- Sanyog left as a MAINTAINER and Bard took his place while Sanyog
is a reviewer now.
- Intel: Lots of updates to stream/dai handling, wake support and link
synchronization.
* tag 'soundwire-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (31 commits)
Soundwire: intel_init: save Slave(s) _ADR info in sdw_intel_ctx
soundwire: intel: add wake interrupt support
soundwire: intel/cadence: merge Soundwire interrupt handlers/threads
soundwire: intel_init: use EXPORT_SYMBOL_NS
soundwire: intel_init: add implementation of sdw_intel_enable_irq()
soundwire: intel: introduce helper for link synchronization
soundwire: intel: introduce a helper to arm link synchronization
soundwire: intel: revisit SHIM programming sequences.
soundwire: intel: reuse code for wait loops to set/clear bits
soundwire: fix the kernel-doc comment
soundwire: sdw.h: fix indentation
soundwire: sdw.h: fix PRBS/Static_1 swapped definitions
soundwire: intel: don't free dma_data in DAI shutdown
soundwire: cadence: allocate/free dma_data in set_sdw_stream
soundwire: intel: remove stream allocation/free
soundwire: stream: add helper to startup/shutdown streams
soundwire: intel: implement get_sdw_stream() operations
MAINTAINERS: change SoundWire maintainer
soundwire: bus: initialize bus clock base and scale registers
soundwire: extend SDW_SLAVE_ENTRY
...
Diffstat (limited to 'Documentation/driver-api')
-rw-r--r-- | Documentation/driver-api/soundwire/stream.rst | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/driver-api/soundwire/stream.rst b/Documentation/driver-api/soundwire/stream.rst index 1b386076402c..8858cea7bfe0 100644 --- a/Documentation/driver-api/soundwire/stream.rst +++ b/Documentation/driver-api/soundwire/stream.rst @@ -293,6 +293,10 @@ per stream. From ASoC DPCM framework, this stream state maybe linked to int sdw_alloc_stream(char * stream_name); +The SoundWire core provides a sdw_startup_stream() helper function, +typically called during a dailink .startup() callback, which performs +stream allocation and sets the stream pointer for all DAIs +connected to a stream. SDW_STREAM_CONFIGURED ~~~~~~~~~~~~~~~~~~~~~ @@ -509,7 +513,12 @@ In .shutdown() the data structure maintaining stream state are freed up. void sdw_release_stream(struct sdw_stream_runtime * stream); -Not Supported +The SoundWire core provides a sdw_shutdown_stream() helper function, +typically called during a dailink .shutdown() callback, which clears +the stream pointer for all DAIS connected to a stream and releases the +memory allocated for the stream. + + Not Supported ============= 1. A single port with multiple channels supported cannot be used between two |