[PATCH 7/7] soundwire: intel: remove PDM support

[Mark Brown]

On Mon, Dec 13, 2021 at 01:46:34PM +0800, Bard Liao wrote:
> From: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
> 
> While the hardware supports PDM streams, this capability has never
> been tested or enabled on any product, so this is dead-code. Let's
> remove all this.

This doesn't build with current code, I'm guessing due to a Soundwire
dependency I don't have:

/mnt/kernel/drivers/soundwire/intel.c:1142:3: error: 'const struct snd_soc_dai_ops' has no member named 'set_sdw_stream'; did you mean 'set_stream'?
 1142 |  .set_sdw_stream = intel_pdm_set_sdw_stream,
      |   ^~~~~~~~~~~~~~
      |   set_stream
/mnt/kernel/drivers/soundwire/intel.c:1142:20: error: initialization of 'int (*)(struct snd_pcm_substream *, struct snd_pcm_hw_params *, struct snd_soc_dai *)' from incompatible pointer type 'int (*)(struct snd_soc_dai *, void *, int)' [-Werror=incompatible-pointer-types]
 1142 |  .set_sdw_stream = intel_pdm_set_sdw_stream,
      |                    ^~~~~~~~~~~~~~~~~~~~~~~~
/mnt/kernel/drivers/soundwire/intel.c:1142:20: note: (near initialization for 'intel_pdm_dai_ops.hw_params')
/mnt/kernel/drivers/soundwire/intel.c:1143:3: error: 'const struct snd_soc_dai_ops' has no member named 'get_sdw_stream'; did you mean 'get_stream'?
 1143 |  .get_sdw_stream = intel_get_sdw_stream,
      |   ^~~~~~~~~~~~~~
      |   get_stream
/mnt/kernel/drivers/soundwire/intel.c:1143:20: error: initialization of 'int (*)(struct snd_pcm_substream *, struct snd_soc_dai *)' from incompatible pointer type 'void * (*)(struct snd_soc_dai *, int)' [-Werror=incompatible-pointer-types]
 1143 |  .get_sdw_stream = intel_get_sdw_stream,
      |                    ^~~~~~~~~~~~~~~~~~~~
/mnt/kernel/drivers/soundwire/intel.c:1143:20: note: (near initialization for 'intel_pdm_dai_ops.hw_free')
cc1: all warnings being treated as errors
make[3]: *** [/mnt/kernel/scripts/Makefile.build:287: drivers/soundwire/intel.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/mnt/kernel/scripts/Makefile.build:549: drivers/soundwire] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/mnt/kernel/Makefile:1846: drivers] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:219: __sub-make] Error 2
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