[v6,0/3] ASoC: sun4i-i2s: Updates to the driver

Message

Code Kipper Aug. 26, 2019, 6:07 p.m. UTC

From: Marcus Cooper <[e-mail]>

Hi All,

here is a patch series to add some improvements to the sun4i-i2s driver
which is enough to get HDMI audio working on the A83T, A64, H3 and
H5 platforms.

I've dropped a lot of the functionality that was presented earlier in favour
of getting initial HDMI audio delivered. H6 and multi-channel HDMI will
follow shortly.

My test branch for this can be found at
https://github.com/codekipper/linux-sunxi/commits/upstream-i2s , I've been
using a Pine64 to test with; validating the new SoC block with HDMI audio
and ensuring that I've not broken the old block by making sure that the audio
codec still works.

BR,
CK

---
v6 changes compared to v5 are:
- removed patches for multi-channel and H6 HDMI audio.
- removed patch for 20, 24 and 32 bit (will push support for just 20 and 24bit)
- ditched tdm patches as support has already been added.
- added fix for A83T reg map.

v5 changes compared to v4 are:
- removed delivered patches.
- Added more details to commit messages.
- replaced some reg fields with function calls.
- Added DSP_A and DSP_B support for H3 and later SoCs.
- Added support for the Allwinner H6.

v4 changes compared to v3 are:
- Moved patches around so that the more controversial of patches are
  at the top of the stack.
- Added more details to commit messages.
- Fixed 20bit audio PCM format to use 4 bytes.
- Reduced number of flags used to indicate a new SoC.

v3 changes compared to v2 are:
 - added back slave mode changes
 - added back the use of tdm properties
 - changes to regmap and caching
 - removed loopback functionality
 - fixes to the channel offset mask

v2 changes compared to v1 are:
 - removed slave mode changes which didn't set mclk and bclk div.
 - removed use of tdm and now use a dedicated property.
 - fix commit message to better explain reason for sign extending
 - add divider calculations for newer SoCs.
 - add support for multi-lane i2s data output.
 - add support for 20, 24 and 32 bit samples.
 - add loopback property so blocks can be tested without a codec.

---

Marcus Cooper (3):
  ASoC: sun4i-i2s: incorrect regmap for A83T
  ASoC: sun4i-i2s: Add regmap field to sign extend sample
  ASoC: sun4i-i2s: Adjust LRCLK width

 sound/soc/sunxi/sun4i-i2s.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)