[v2,00/19] ASoC: fsl_micfil: Driver updates

Message

Sascha Hauer March 28, 2022, 11:27 a.m. UTC

This series has a bunch of cleanups for the FSL MICFIL driver. There is
not much chance for regressions in this series as the driver currently
can't work at all. The MICFIL needs multififo support in the i.MX SDMA
engine which is added with this series, see 10/19.

The multififo support is selected in the dma phandle arguments in the
device tree, the transfer type must be '25' aka IMX_DMATYPE_MULTI_SAI.
This is set already to 25 in the upstream i.MX8M[NM] dtsi files, but the
SDMA driver silently ignores unsupported values instead of throwing an
error. This is fixed in this series and multififo support is added.

I think the series should go via the ASoC tree, so I'll need an ack from
the DMA guys for 9/19 and 10/10.

Changes since v1:
- Drop unused variable sw_done_sel
- Evaluate sdmac->direction directly instead of storing value in n_fifos
- add missing include linux/bitfield.h

Sascha Hauer (19):
  ASoC: fsl_micfil: Drop unnecessary register read
  ASoC: fsl_micfil: Drop unused register read
  ASoC: fsl_micfil: drop fsl_micfil_set_mclk_rate()
  ASoC: fsl_micfil: do not define SHIFT/MASK for single bits
  ASoC: fsl_micfil: use GENMASK to define register bit fields
  ASoC: fsl_micfil: use clear/set bits
  ASoC: fsl_micfil: drop error messages from failed register accesses
  ASoC: fsl_micfil: drop unused variables
  dma: imx-sdma: error out on unsupported transfer types
  dma: imx-sdma: Add multi fifo support
  ASoC: fsl_micfil: add multi fifo support
  ASoC: fsl_micfil: use define for OSR default value
  ASoC: fsl_micfil: Drop get_pdm_clk()
  ASoC: fsl_micfil: simplify clock setting
  ASoC: fsl_micfil: rework quality setting
  ASoC: fsl_micfil: drop unused include
  ASoC: fsl_micfil: drop only once used defines
  ASoC: fsl_micfil: drop support for undocumented property
  ASoC: fsl_micfil: fold fsl_set_clock_params() into its only user

 drivers/dma/imx-sdma.c                |  74 +++++-
 include/linux/platform_data/dma-imx.h |   7 +
 sound/soc/fsl/fsl_micfil.c            | 369 +++++++++-----------------
 sound/soc/fsl/fsl_micfil.h            | 269 +++++--------------
 4 files changed, 269 insertions(+), 450 deletions(-)