diff options
| author | Daniel Baluta <daniel.baluta@nxp.com> | 2019-12-05 00:15:53 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-12-09 21:39:35 +0300 |
| commit | 285880a23d105e5d34b311b0c44061dffb07e405 (patch) | |
| tree | 086e6f66bde82028caf102e86cce299bb16c9f5c /sound/soc/sof/sof-audio.h | |
| parent | 80acdd4f8ff763183dc1cd7f1cd31db9eaaecdc8 (diff) | |
| download | linux-285880a23d105e5d34b311b0c44061dffb07e405.tar.xz | |
ASoC: SOF: Make creation of machine device from SOF core optional
Currently, SOF probes machine drivers by creating a platform device
and passing the machine description as private data.
This is driven by the ACPI restrictions. Ideally, ACPI tables
should contain the description for the machine driver. This is
not possible because ACPI tables are frozen and used on multiple
OS-es (e.g Windows).
In the case of Device Tree we don't have this restriction, so we
choose to probe the machine drivers by creating a DT node as is
the standard ALSA way.
This patch makes the probing of machine drivers from SOF
core optional allowing for Device Tree platforms to decouple
the SOF core from machine driver probing.
Along with this, it also consolidates the machine driver selection
for Intel platforms by defining optional ops for selecting the machine
driver based on the ACPI match for HDA and non-HDA platforms and
setting the mach params.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191204211556.12671-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/sof-audio.h')
| -rw-r--r-- | sound/soc/sof/sof-audio.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h index 5703698633af..a62fb2da6a6e 100644 --- a/sound/soc/sof/sof-audio.h +++ b/sound/soc/sof/sof-audio.h @@ -204,4 +204,8 @@ int sof_restore_pipelines(struct device *dev); int sof_set_hw_params_upon_resume(struct device *dev); bool snd_sof_dsp_d0i3_on_suspend(struct snd_sof_dev *sdev); +/* Machine driver enumeration */ +int sof_machine_register(struct snd_sof_dev *sdev, void *pdata); +void sof_machine_unregister(struct snd_sof_dev *sdev, void *pdata); + #endif |