[PATCH v5 0/3] Add RZ/G2L Sound support

[Biju Das]

This patch series aims to add ASoC support on RZ/G2L SoC's.

It is based on the work done by Chris Brandt for RZ/A ASoC driver.

v4->v5
 * Moved validation of sample bits in hw_params
 * Removed validation of frame bits as it is redundant
 * split the rz_ssi_start_stop function into rz_ssi_start and rz_ssi_stop.
 * remove the spin_lock around rz_ssi_stream_init.
 * Updated dmas description and removed fixes as it is an enhancement
   now.
 * updated ssi_start functions with setting fifo thresholds
   and ssi_stop function with cancel all dma txn.
v3->v4:
 * Updated the subject line as per style for the subsystem.
 * Removed select SND_SIMPLE_CARD from Kconfig
 * Added C++ comments for copyright and driver description.
 * Moved validation of channels in hw_params
 * removed asm issue reported by bot as well as Mark
 * replaced master/slave macros with provider/consumer macros
 * Improved locking and added more null pointer checks.
v2->v3:
 * Fixed the dependency on KCONFIG
 * Merged the binding patch with dma feature added
 * Updated dt binding example with encoded #dma-cells value.
 * Improved Error handling in probe function
 * Removed the passing legacy channel configuration parameters from
   dmaengine_slave_config function
 * started using dma_request_chan instead of deprecated
   dma_request_slave_channel
 * Removed SoC dtsi and config patches from this series. Will send it later.
v1->v2:
 * Rebased to latest rc kernel

Biju Das (3):
  ASoC: sh: Add RZ/G2L SSIF-2 driver
  ASoC: dt-bindings: renesas,rz-ssi: Update slave dma channel
    configuration parameters
  ASoC: sh: rz-ssi: Add SSI DMAC support

 .../bindings/sound/renesas,rz-ssi.yaml        |   22 +-
 sound/soc/sh/Kconfig                          |    6 +
 sound/soc/sh/Makefile                         |    4 +
 sound/soc/sh/rz-ssi.c                         | 1063 +++++++++++++++++
 4 files changed, 1093 insertions(+), 2 deletions(-)
 create mode 100644 sound/soc/sh/rz-ssi.c

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2.17.1