From 285880a23d105e5d34b311b0c44061dffb07e405 Mon Sep 17 00:00:00 2001
From: Daniel Baluta <daniel.baluta@nxp.com>
Date: Wed, 4 Dec 2019 15:15:53 -0600
Subject: 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>
---
sound/soc/sof/sof-pci-dev.c | 28 +---------------------------
1 file changed, 1 insertion(+), 27 deletions(-)
(limited to 'sound/soc/sof/sof-pci-dev.c')
diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c
index 046bd57657ca..1c7b87392708 100644
--- a/sound/soc/sof/sof-pci-dev.c
+++ b/sound/soc/sof/sof-pci-dev.c
@@ -275,7 +275,6 @@ static int sof_pci_probe(struct pci_dev *pci,
struct device *dev = &pci->dev;
const struct sof_dev_desc *desc =
(const struct sof_dev_desc *)pci_id->driver_data;
- struct snd_soc_acpi_mach *mach;
struct snd_sof_pdata *sof_pdata;
const struct snd_sof_dsp_ops *ops;
int ret;
@@ -306,35 +305,10 @@ static int sof_pci_probe(struct pci_dev *pci,
if (ret < 0)
return ret;
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
- /* force nocodec mode */
- dev_warn(dev, "Force to use nocodec mode\n");
- mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL);
- if (!mach) {
- ret = -ENOMEM;
- goto release_regions;
- }
- ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops);
- if (ret < 0)
- goto release_regions;
-
-#else
- /* find machine */
- mach = snd_soc_acpi_find_machine(desc->machines);
- if (!mach) {
- dev_warn(dev, "warning: No matching ASoC machine driver found\n");
- } else {
- mach->mach_params.platform = dev_name(dev);
- sof_pdata->fw_filename = mach->sof_fw_filename;
- sof_pdata->tplg_filename = mach->sof_tplg_filename;
- }
-#endif /* CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE */
-
sof_pdata->name = pci_name(pci);
- sof_pdata->machine = mach;
sof_pdata->desc = (struct sof_dev_desc *)pci_id->driver_data;
sof_pdata->dev = dev;
- sof_pdata->platform = dev_name(dev);
+ sof_pdata->fw_filename = desc->default_fw_filename;
/* alternate fw and tplg filenames ? */
if (fw_path)
--
cgit v1.2.3