Technicalities » release http://www.sirena.org.uk/log Just another random blog Sat, 21 Jan 2012 23:41:17 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 ASoC updates in 2.6.39 http://www.sirena.org.uk/log/2011/05/19/asoc-updates-in-2-6-39/ http://www.sirena.org.uk/log/2011/05/19/asoc-updates-in-2-6-39/#comments Thu, 19 May 2011 21:26:18 +0000 Mark Brown http://www.sirena.org.uk/log/?p=344 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 be removed at some point in the future.
  • Support for ordering widget power changes within widget types, helping with large CODECs and multi-stage amplifiers.
  • Support for waiting for multiple slow events to complete during DAPM sequences, making it easier to handle things like DC offset correction on multiple outputs.
  • CPU support for Intel Medfield and nVidia Tegra2.
  • CODEC support for Cirrus CS4271, Freescale SGTL5000, Maxim MAX8950, National Semiconductors LM4857, TI SN95031 and Wolfson WM8991
  • Machine support for Intel Medfield MID reference platforms, nVidia Harmony, and Visstrim M10.
]]> http://www.sirena.org.uk/log/2011/05/19/asoc-updates-in-2-6-39/feed/ 0 ASoC changes in 2.6.37 http://www.sirena.org.uk/log/2011/01/05/asoc-changes-in-2-6-37/ http://www.sirena.org.uk/log/2011/01/05/asoc-changes-in-2-6-37/#comments Wed, 05 Jan 2011 11:34:45 +0000 Mark Brown http://www.sirena.org.uk/log/?p=313 2.6.37, which was released today, has been a very big release for ASoC – about 40,000 lines of changes covering every single file within the subsystem plus a bunch of new drivers. The highlights are:

  • Overhaul of the core APIs for registration of all kinds of devices from my co-maintainer Liam Girdwood, reducing the level of direct coupling between machine drivers and their CODEC and CPU drivers allowing ASoC machines to have multiple CODEC devices and multiple instances of the same CODEC device within a system.
  • New CODEC drivers for  88PM860x CODEC, MAX98088/9, WL1273, WM8962, WM8804, and WM8985.
  • New CPU drivers for EP93xx AC’97 controllers, MPC85xx SSI ports, and SH HDMI controllers.
  • Machine support for Freescale P1022 DS, Marvell Tavor and Saarb and Simplemachines Sim.One
]]> http://www.sirena.org.uk/log/2011/01/05/asoc-changes-in-2-6-37/feed/ 0 ASoC updates in 2.6.31 http://www.sirena.org.uk/log/2009/09/10/asoc-updates-in-2-6-31/ http://www.sirena.org.uk/log/2009/09/10/asoc-updates-in-2-6-31/#comments Thu, 10 Sep 2009 10:33:07 +0000 Mark Brown http://www.sirena.org.uk/log/?p=138 Linux 2.6.31 was released today. This was a fairly busy release for the ASoC subsystem, with updates including:

  • DAPM supply widget, for automatically managing things like charge pumps and gateable clocks which may be used by more than one widget.
  • Core support for setting up constraints for symmetric sample rates (for systems with a shared LRCLK).
  • Support for a range of new CODECs: STAC9766, WM8940, WM8960, WM8988, and WM9081
  • New CPU support too: MPC5200 AC97 and the I2S interface of the Stretch S6000.

Plus lots of updates and fixes to existing code, especially to the OMAP and TWL4030 drivers.

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