linux-stable.git/drivers/soundwire/intel.c, branch v6.3

soundwire: intel: remove DAI startup/shutdown

2023-01-09T16:03:49+00:00

The only thing these DAI startup/shutdown callbacks do is play with
pm_runtime reference counts.

This is not wrong, but it's not necessary at all. At the ASoC core level,
only the component matters for pm_runtime. The ASoC core already calls
pm_runtime_get_sync() in snd_soc_pcm_component_pm_runtime_get(),
before the DAI startup callback is invoked.

None of the SoundWire codec drivers rely on pm_runtime helpers in
their DAI startup/shutdown either. This adds to the evidence that only
the component, or more precisely the device specified when registering
a component, should deal with pm_runtime transitions.

Beyond the code cleanup, this move prepares for the addition of link
power management in the auxiliary device startup/resume/suspend
callbacks. The DAI callbacks can by-design assume that the device is
already pm_runtime active.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Ranjani Sridharan 
Reviewed-by: Rander Wang 
Reviewed-by: Péter Ujfalusi 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20221215085436.2001568-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: split auxdevice to different file

2022-11-23T14:41:49+00:00

The auxdevice layer is completely generic, it should be split from
intel.c which is only geared to the 'cnl' hw_ops now.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Rander Wang 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20221111013135.38289-8-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: add in-band wake callbacks in hw_ops

2022-11-23T14:41:49+00:00

No functionality change, only add indirection for in-band wake
management helpers.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Rander Wang 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20221111013135.38289-7-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: add link power management callbacks in hw_ops

2022-11-23T14:41:49+00:00

No functionality change, only add indirection for link power
management helpers.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Rander Wang 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20221111013135.38289-6-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: add bus management callbacks in hw_ops

2022-11-23T14:41:48+00:00

No functionality change, only add indirection for bus management
helpers.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Rander Wang 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20221111013135.38289-5-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: add register_dai callback in hw_ops

2022-11-23T14:41:48+00:00

No functionality change, only add indirection for DAI registration
helper.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Rander Wang 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20221111013135.38289-4-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: add debugfs callbacks in hw_ops

2022-11-23T14:41:48+00:00

No functionality change, only add indirection for debugfs helpers.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Rander Wang 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20221111013135.38289-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: start using hw_ops

2022-11-23T14:41:48+00:00

Before introducing new hardware with completely different register
spaces and programming sequences, we need to abstract some of the
existing routines in hw_ops that will be platform-specific. For now we
only use the 'cnl' ops - after the first Intel platform with SoundWire
capabilities.

Rather than one big intrusive patch, hw_ops are introduced in this
patch so show the dependencies between drivers. Follow-up patches will
introduce callbacks for debugfs, power and bus management.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Rander Wang 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20221111013135.38289-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

Merge branch 'fixes' into next

2022-11-23T14:21:09+00:00

Merge fixes into next as Intel driver has a dependency

soundwire: cadence: use dai_runtime_array instead of dma_data

2022-11-09T04:29:46+00:00

Simplify the code with a Cadence-specific dai_runtime_array, indexed
with dai->id, instead of abusing dma_data.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Péter Ujfalusi 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20221101023521.2384586-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul