[PATCH v6 0/3] ASoC: fsl: add bitcount and timestamp controls

[Shengjiu Wang <shengjiu.wang@nxp.com>]

The SAI and XCVR have the timestamp counters and bit counters, which can
be used by software to track the progress of the transmitter and receiver.
They can also be used to calculate the relative frequency of the bit clock
against the bus interface clock.

changes in v6:
- define FSL_ASOC_SINGLE_EXT and FSL_ASOC_ENUM_EXT, which are
  SNDRV_CTL_ELEM_ACCESS_VOLATILE.
- return 0 in fsl_asoc_put_volsw, fsl_asoc_put_enum_double and
  fsl_asoc_put_xr_sx to avoid control event notification.

changes in v5:
- use EXPORT_SYMBOL_GPL to replace EXPORT_SYMBOL in patch 1/3

changes in v4:
- use the pm_runtime_resume_and_get to get pm reference before calling
  fuctions and use pm_runtime_put_autosuspend to release the reference
  in patch 1/3

changes in v3:
- define own functions which check the pm status before accessing the
  registers to avoid -EBUSY error reported by mixer-test.

Changes in v2:
- remove arrays of enums, define transmit_tstmp_enum and receive_tstmp_enum
  separately.
- remove __bf_shf(), define the XXX_SHIFT macros.

Shengjiu Wang (3):
  ASoC: fsl_utils: Add snd_kcontrol functions for specific cases
  ASoC: fsl_sai: add bitcount and timestamp controls
  ASoC: fsl_xcvr: add bitcount and timestamp controls

 sound/soc/fsl/fsl_sai.c   |  66 +++++++++++++++++++
 sound/soc/fsl/fsl_sai.h   |   4 ++
 sound/soc/fsl/fsl_utils.c | 131 ++++++++++++++++++++++++++++++++++++++
 sound/soc/fsl/fsl_utils.h |  48 ++++++++++++++
 sound/soc/fsl/fsl_xcvr.c  |  64 +++++++++++++++++++
 sound/soc/fsl/fsl_xcvr.h  |  18 ++++++
 6 files changed, 331 insertions(+)

-- 
2.34.1