[v4,00/10] Add the PowerQUICC audio support using the QMC

Hi,

This series adds support for audio using the QMC controller available in
some Freescale PowerQUICC SoCs.

This series contains three parts in order to show the different blocks
hierarchy and their usage in this support.

The first one is related to TSA (Time Slot Assigner).
The TSA handles the data present at the pin level (TDM with up to 64
time slots) and dispatchs them to one or more serial controller (SCC).

The second is related to QMC (QUICC Multichannel Controller).
The QMC handles the data at the serial controller (SCC) level and splits
again the data to creates some virtual channels.

The last one is related to the audio component (QMC audio).
It is the glue between the QMC controller and the ASoC component. It
handles one or more QMC virtual channels and creates one DAI per QMC
virtual channels handled.

Compared to the previous iteration
  https://lore.kernel.org/linux-kernel/20230113103759.327698-1-herve.codina@bootlin.com/
this v4 series mainly:
  - updates code comment format (feedback received on v2 series and
    forgot to update in v3),
  - fixes bindings,
  - Replaces the fsl,tsa phandle and the fsl,tsa-cell-id property by a
    fsl,tsa-serial phandle and update the TSA related API,
  - Adds some missing lock in tsa_serial_connect() and
    tsa_serial_disconnect().

Best regards,
Herve Codina

Changes v3 -> v4
  - patches 2, 6 and 9
    Update code comment format.

  - patch 1
    Fix some description formats.
    Add 'additionalProperties: false' in subnode.
    Move fsl,mode to fsl,diagnostic-mode.
    Change clocks and clock-names properties.
    Add '#serial-cells' property related to the newly introduced
    fsl,tsa-serial phandle.

  - patch 2
    Move fsl,mode to fsl,diagnostic-mode.
    Replace the	fsl,tsa phandle and the	fsl,tsa-cell-id	property by a
    fsl,tsa-serial phandle and update the related API.
    Add missing locks.

  - patch 5
    Fix some description format.
    Replace the fsl,tsa phandle and the fsl,tsa-cell-id property by a
    fsl,tsa-serial phandle.
    Rename fsl,mode to fsl,operational-mode and update its description.

  - patch 6
    Replace the	fsl,tsa phandle and the	fsl,tsa-cell-id	property by a
    fsl,tsa-serial phandle and use the TSA updated API.
    Rename fsl,mode to fsl,operational-mode.

  - patch 8
    Add 'Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>'

Changes v2 -> v3
  - All bindings
    Rename fsl-tsa.h to fsl,tsa.h
    Add missing vendor prefix
    Various fixes (quotes, node names, upper/lower case)

  - patches 1 and 2 (TSA binding specific)
    Remove 'reserved' values in the routing tables
    Remove fsl,grant-mode
    Add a better description for 'fsl,common-rxtx-pins'
    Fix clocks/clocks-name handling against fsl,common-rxtx-pins
    Add information related to the delays unit
    Removed FSL_CPM_TSA_NBCELL
    Fix license in binding header file fsl,tsa.h

  - patches 5 and 6 (QMC binding specific)
    Remove fsl,cpm-command property
    Add interrupt property constraint

  - patches 8 and 9 (QMC audio binding specific)
    Remove 'items' in compatible property definition
    Add missing 'dai-common.yaml' reference
    Fix the qmc_chan phandle definition

  - patch 2 and 6
    Use io{read,write}be{32,16}
    Change commit subjects and logs

  - patch 4
    Add 'Acked-by: Christophe Leroy <christophe.leroy@csgroup.eu>'

Changes v1 -> v2:
  - patch 2 and 6
    Fix kernel test robot errors

  - other patches
    No changes

Herve Codina (10):
  dt-bindings: soc: fsl: cpm_qe: Add TSA controller
  soc: fsl: cpm1: Add support for TSA
  MAINTAINERS: add the Freescale TSA controller entry
  powerpc/8xx: Use a larger CPM1 command check mask
  dt-bindings: soc: fsl: cpm_qe: Add QMC controller
  soc: fsl: cmp1: Add support for QMC
  MAINTAINERS: add the Freescale QMC controller entry
  dt-bindings: sound: Add support for QMC audio
  ASoC: fsl: Add support for QMC audio
  MAINTAINERS: add the Freescale QMC audio entry

 .../bindings/soc/fsl/cpm_qe/fsl,qmc.yaml      |  167 ++
 .../bindings/soc/fsl/cpm_qe/fsl,tsa.yaml      |  261 +++
 .../bindings/sound/fsl,qmc-audio.yaml         |  117 ++
 MAINTAINERS                                   |   25 +
 arch/powerpc/platforms/8xx/cpm1.c             |    2 +-
 drivers/soc/fsl/qe/Kconfig                    |   23 +
 drivers/soc/fsl/qe/Makefile                   |    2 +
 drivers/soc/fsl/qe/qmc.c                      | 1533 +++++++++++++++++
 drivers/soc/fsl/qe/tsa.c                      |  864 ++++++++++
 drivers/soc/fsl/qe/tsa.h                      |   42 +
 include/dt-bindings/soc/fsl,tsa.h             |   13 +
 include/soc/fsl/qe/qmc.h                      |   71 +
 sound/soc/fsl/Kconfig                         |    9 +
 sound/soc/fsl/Makefile                        |    2 +
 sound/soc/fsl/fsl_qmc_audio.c                 |  735 ++++++++
 15 files changed, 3865 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qmc.yaml
 create mode 100644 Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,tsa.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,qmc-audio.yaml
 create mode 100644 drivers/soc/fsl/qe/qmc.c
 create mode 100644 drivers/soc/fsl/qe/tsa.c
 create mode 100644 drivers/soc/fsl/qe/tsa.h
 create mode 100644 include/dt-bindings/soc/fsl,tsa.h
 create mode 100644 include/soc/fsl/qe/qmc.h
 create mode 100644 sound/soc/fsl/fsl_qmc_audio.c