Changelog of Wolfson / Cirrus Logic linux driver for Raspberry Pi

2017-01-20
cirrus-ng-linux-4.9.4.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-ng-4.9.4
- Fixed noise on line in when micbias is off


2016-12-18
cirrus-ng-linux-4.9.0.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-ng-4.9.0
- Initial release of reworked Wolfson/Cirrus driver

Important Note:

The sound card name has changed from "snd_rpi_wsp" to "RPi-Cirrus".
Thus the old "usecase" and "listen" scripts no longer work. Use the
updated scripts from "cirrus-ng-scripts.tgz" instead.


2016-07-04
cirrus-linux-4.4.14.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-4.4.14
- Drop local I2S/DMA fixes, these issues have been fixed in the RPi kernel


2016-04-12
cirrus-linux-4.4.6.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-4.4.6
- Switch to kernel 4.4 series, version 4.4.6
- Remove now obsolete non-devicetree code from driver

Important notes if you update from kernel 4.1.y:
- Update the GPU firmware using "sudo SKIP_KERNEL=1 rpi-update"
  before installing the 4.4 kernel. Failing to do this may
  result in various errors or a non-booting system!
- Check that you have "dtoverlay=rpi-cirrus-wm5102" in your config.txt,
  the old variant "dtoverlay=rpi-cirrus-wm5102-overlay" is no
  longer supported.


2016-03-11
cirrus-linux-4.1.19.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-4.1.19
- Included I2S fixes for RPi 3
- Add missing .owner field in snd_soc_card
- Silence probe deferral messages from register card


2016-02-18
cirrus-linux-4.1.18.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-4.1.18

- Rebased driver on top of current RPi 4.1 kernel tree


2016-01-24
cirrus-linux-4.1.16.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-4.1.16

- Added proper fix for 44.1kHz/48kHz switching bug
- Reworked DAPM code
- Added several WM5102/Arizona related commits from kernel 4.4 and 4.5


2015-11-21
cirrus-linux-4.1.13.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-4.1.13

- Removed the rather ugly custom wm8804 one-time-init code and use
  the in-kernel wm8804 driver's hardware reset feature instead.
  You can now remove the following lines from /etc/modprobe.d/cirrus.conf

  softdep snd-soc-wm8804-i2c pre: snd-soc-rpi-wsp-preinit
  softdep snd-soc-rpi-wsp pre: snd-soc-wm8804-i2c

- Fixed a bug in the bcm2708-dmaengine driver that caused the physical
  period/buffer layout to be different than the one requested from ALSA.
- Bumped the maximum DMA transfer limit from 32k to 64k-4 as in
  the 4.3 kernel bcm2835-dma driver
- Set the maximum period size of the I2S driver to the limit of the
  DMA driver (64k-4 bytes) to ensure the physical period/buffer
  allocation will always be as requested by ALSA


2015-10-30
cirrus-linux-4.1.12.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-4.1.12

- No major changes, just rebased onto rpi-4.1.12 kernel


2015-08-22
cirrus-linux-4.1.6.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-4.1.6

- Move one-time wm8804 init code from card driver into a separate
  module. This fixes wm8804 detection problems. You have to add the
  following two lines to your /etc/modprobe.d/cirrus.conf file:

  softdep snd-soc-wm8804-i2c pre: snd-soc-rpi-wsp-preinit
  softdep snd-soc-rpi-wsp pre: snd-soc-wm8804-i2c


2015-07-30
cirrus-linux-4.0.9.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-4.0.9

- Configure wm5102 interrupt pin in devicetree

2015-06-16
cirrus-linux-3.18.16.tgz
source: https://github.com/HiassofT/rpi-linux/tree/cirrus-3.18.16

- Add FLL1 setup back to snd_rpi_wsp_config_5102_clks to fix
  switching between 44.1kHz and 48kHz related rates
- Add DCVDD commits from Cirrus linux tree
- Disable spidev 0 in DT overlay
- Don't register arizona irq if it's 0
- Remove direct w->codec access, use snd_soc_dapm_to_codec instead