[PATCH v1 0/4] Add static channel mapping between soundwire master and slave

[Mohammad Rafi Shaik]

Add static channel map support between soundwire master and slave.
This patch series will resolve channel mask mismatch between master and slave.

Scenario: wcd937x AMIC2 usecase

                          Master                 Slave (wcd937x)
                     +--------------+           +--------------+
                     |  +--------+  |           |  +--------+  |
         AMIC1 ----->|  | PORT1  |  |           |  |   TX1  |  |<-----------AMIC1
         AMIC2 ----->|  |        |  |           |  |        |  |
                     |  +--------+  |           |  +--------+  |
                     |              |           |              |
         AMIC3 ----->|  +--------+  |           |  +--------+  |
                     |  |  PORT2 |  |           |  |   TX2  |  |<-----------AMIC2
                     |  |        |  |           |  |        |  |<-----------AMIC3
                     |  +--------+  |           |  +--------+  |
                     |              |           |              |
                     |  +--------+  |           |  +--------+  |
 DMIC0...DMIC3------>|  |  PORT3 |  |           |  |   TX3  |  |<-----------DMIC0...DMIC3
                     |  |        |  |           |  |        |  |<-----------MBHC
                     |  +--------+  |           |  +--------+  |
                     |              |           |              |
                     |  +--------+  |           |  +--------+  |
 DMIC4...DMIC37----->|  |  PORT4 |  |           |  |   TX4  |  |<-----------DMIC4...DMIC7
                     |  |        |  |           |  |        |  |
                     |  +--------+  |           |  +--------+  |
                     |              |           |              |
                     +------------- +           +--------------+

For AMIC2 usecase, The Slave need to configure TX2 Port with channel mask 1 and
for Master required PORT1 with channel mask 2,

In existing design master and slave configured with same channel mask, it will fail
AMIC2 usecase.

The New design will help to configure channel mapping between master and slave from
device tree.

Mohammad Rafi Shaik (4):
  ASoC: dt-bindings: wcd938x-sdw: Add static channel mapping support
  soundwire: stream: Add set_master_channel_map() to set static channel
    mapping
  soundwire: qcom: Add static channel mapping support in soundwire
    master
  ASoC: codecs: wcd937x: Add static channel mapping support in
    wcd937x-sdw

 .../bindings/sound/qcom,wcd937x-sdw.yaml      | 28 ++++++++++
 drivers/soundwire/qcom.c                      | 18 +++++++
 drivers/soundwire/stream.c                    | 16 ++++++
 include/linux/soundwire/sdw.h                 |  5 ++
 sound/soc/codecs/wcd937x-sdw.c                | 52 ++++++++++++++++---
 sound/soc/codecs/wcd937x.c                    | 12 ++++-
 sound/soc/codecs/wcd937x.h                    |  6 ++-
 7 files changed, 126 insertions(+), 11 deletions(-)


base-commit: 9aaeb87ce1e966169a57f53a02ba05b30880ffb8
-- 
2.25.1