Linux v3.6 was another quiet release for ASoC with just a single notable framework feature being merged: Added the ability to add and remove DAPM paths dynamically, mostly for reparenting on clock changes. New machine drivers for Marvell Brownstone, ST-Ericsson Ux500 and ttc-dkp. New CPU drivers for Blackfin BF6xx SPORTs in I2S mode, Marvell MMP, [...]
The big news for ASoC in 3.5 is the first two changes here which are pretty major features for the subsystem: Dynamic PCM support, allowing support for SoCs with internal routing through components with tight sequencing and formatting constraints within their internal paths or where there are multiple components connected with CPU managed DMA controllers [...]
Linux version 3.4 has been released. This was a very active release for ASoC in framework terms, in addition to the usual bug fixes and so on there were a large number of framework enhancements though most are fairly small or are laying the groundwork for more user visible features like dynamic PCM. Support for [...]
Linux 3.3 was released earlier this week. Aside from a few regmap related updates it was an extremely quiet release for the ASoC framework, the next few releases look like they will be much more active: Conversion of a number of CODEC drivers to use regmap directly. This is especially beneficial for drivers for devices [...]
Linux 3.2 was released yesterday. It’s been a fairly busy release for ASoC in terms of the subsystem, including the first piece of work at moving the register I/O code over to regmap to eliminate the duplication there, but a pretty quiet one on the drivers front. Substantial optimization of the DAPM algorithm, substantially reducing the CPU [...]
Linus released version 3.1 of the kernel at Kernel Summit this morning. This has been another fairly quiet release for the framework with a few nice power optimizations, a range of driver enhancements and a fairly small set of new drivers. Lots of cleanups to the register cache code in preparation for moving the code to the [...]
One of the big things that seems to cause a learning curve for many new contributors for Linux and other projects that make a big effort with code review is the process of putting patches together in a way that makes the code review process more smoothly. This is a fairly straightforward thing but it [...]
Linux 3.0 was released today – another fairly quiet release for the ASoC core, plus the usual collection of new drivers: Support DAPM controls that affect multiple paths – mainly used for single register bits that affect the routing for a stereo pair of audio streams. Simplifications in the cache infrastructure. New machine drivers for [...]
Linux 2.6.39 was released earlier today. This release includes a few updates, the main user visible one being that machine drivers can now be registered as regular devices rather than using the soc-audio device. Support for registering machine drivers as first class devices rather than using the soc-audio device. Support for the soc-audio device will [...]
There will be an ASoC conference in Edinburgh 4th-5th May this year, held in the Scotch Malt Whisky Society in Edinburgh. Full details are in the announcement – if you’ve got an interest in embedded audio on Linux I recommend you attend, there’s a lot of development going on in this area right now and [...]