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| author | Daniel Baluta <daniel.baluta@nxp.com> | 2019-12-04 15:15:53 -0600 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-12-09 18:39:35 +0000 |
| commit | 285880a23d105e5d34b311b0c44061dffb07e405 (patch) | |
| tree | 086e6f66bde82028caf102e86cce299bb16c9f5c /sound/soc/sof/intel/bdw.c | |
| parent | 80acdd4f8ff763183dc1cd7f1cd31db9eaaecdc8 (diff) | |
| download | linux-285880a23d105e5d34b311b0c44061dffb07e405.tar.bz2 | |
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/intel/bdw.c')
| -rw-r--r-- | sound/soc/sof/intel/bdw.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/bdw.c b/sound/soc/sof/intel/bdw.c index 141dad554764..c09885c0eb7d 100644 --- a/sound/soc/sof/intel/bdw.c +++ b/sound/soc/sof/intel/bdw.c @@ -17,6 +17,7 @@ #include <sound/sof/xtensa.h> #include "../ops.h" #include "shim.h" +#include "../sof-audio.h" /* BARs */ #define BDW_DSP_BAR 0 @@ -536,6 +537,32 @@ static int bdw_probe(struct snd_sof_dev *sdev) return ret; } +static void bdw_machine_select(struct snd_sof_dev *sdev) +{ + struct snd_sof_pdata *sof_pdata = sdev->pdata; + const struct sof_dev_desc *desc = sof_pdata->desc; + struct snd_soc_acpi_mach *mach; + + mach = snd_soc_acpi_find_machine(desc->machines); + if (!mach) { + dev_warn(sdev->dev, "warning: No matching ASoC machine driver found\n"); + return; + } + + sof_pdata->tplg_filename = mach->sof_tplg_filename; + mach->mach_params.acpi_ipc_irq_index = desc->irqindex_host_ipc; + sof_pdata->machine = mach; +} + +static void bdw_set_mach_params(const struct snd_soc_acpi_mach *mach, + struct device *dev) +{ + struct snd_soc_acpi_mach_params *mach_params; + + mach_params = (struct snd_soc_acpi_mach_params *)&mach->mach_params; + mach_params->platform = dev_name(dev); +} + /* Broadwell DAIs */ static struct snd_soc_dai_driver bdw_dai[] = { { @@ -574,6 +601,12 @@ const struct snd_sof_dsp_ops sof_bdw_ops = { .ipc_msg_data = intel_ipc_msg_data, .ipc_pcm_params = intel_ipc_pcm_params, + /* machine driver */ + .machine_select = bdw_machine_select, + .machine_register = sof_machine_register, + .machine_unregister = sof_machine_unregister, + .set_mach_params = bdw_set_mach_params, + /* debug */ .debug_map = bdw_debugfs, .debug_map_count = ARRAY_SIZE(bdw_debugfs), |