diff options
| author |   Brent Lu <brent.lu@intel.com> | 2021-10-30 01:14:04 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2021-10-29 18:55:16 +0100 |
| commit | cafa39b650ec3ba8e9efa0825f1c08e029b5a1ed (patch) | |
| tree | b00009f43edb1521d026a2cd86492cb470c4a566 | |
| parent | ASoC: mediatek: mt8195: add mt8195-mt6359-rt1011-rt5682 bindings document (diff) | |
| download | linux-dev-cafa39b650ec3ba8e9efa0825f1c08e029b5a1ed.tar.xz linux-dev-cafa39b650ec3ba8e9efa0825f1c08e029b5a1ed.zip | |
ASoC: soc-acpi: add comp_ids field for machine driver matching
A machine driver needs to be enumerated by more than one ACPI HID if
it supports second headphone driver (i.e. rt5682 and rt5682s).
However, the id field in snd_soc_acpi_mach structure could contain
only one HID. By adding a 'comp_ids' field which can contain several
HIDs, we can enumerate a machine driver by multiple ACPI HIDs.
Signed-off-by: Brent Lu <brent.lu@intel.com>
Link: https://lore.kernel.org/r/20211029171409.611600-2-brent.lu@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | include/sound/soc-acpi.h | 3 | ||||
| -rw-r--r-- | sound/soc/soc-acpi.c | 24 |
2 files changed, 25 insertions, 2 deletions
diff --git a/include/sound/soc-acpi.h b/include/sound/soc-acpi.h index 2f3fa385c092..31f4c4f9aeea 100644 --- a/include/sound/soc-acpi.h +++ b/include/sound/soc-acpi.h @@ -129,6 +129,8 @@ struct snd_soc_acpi_link_adr { * all firmware/topology related fields. * * @id: ACPI ID (usually the codec's) used to find a matching machine driver. + * @comp_ids: list of compatible audio codecs using the same machine driver, + * firmware and topology * @link_mask: describes required board layout, e.g. for SoundWire. * @links: array of link _ADR descriptors, null terminated. * @drv_name: machine driver name @@ -146,6 +148,7 @@ struct snd_soc_acpi_link_adr { /* Descriptor for SST ASoC machine driver */ struct snd_soc_acpi_mach { const u8 id[ACPI_ID_LEN]; + const struct snd_soc_acpi_codecs *comp_ids; const u32 link_mask; const struct snd_soc_acpi_link_adr *links; const char *drv_name; diff --git a/sound/soc/soc-acpi.c b/sound/soc/soc-acpi.c index 395229bf5c51..2ae99b49d3f5 100644 --- a/sound/soc/soc-acpi.c +++ b/sound/soc/soc-acpi.c @@ -8,14 +8,34 @@ #include <linux/module.h> #include <sound/soc-acpi.h> +static bool snd_soc_acpi_id_present(struct snd_soc_acpi_mach *machine) +{ + const struct snd_soc_acpi_codecs *comp_ids = machine->comp_ids; + int i; + + if (machine->id[0]) { + if (acpi_dev_present(machine->id, NULL, -1)) + return true; + } + + if (comp_ids) { + for (i = 0; i < comp_ids->num_codecs; i++) { + if (acpi_dev_present(comp_ids->codecs[i], NULL, -1)) + return true; + } + } + + return false; +} + struct snd_soc_acpi_mach * snd_soc_acpi_find_machine(struct snd_soc_acpi_mach *machines) { struct snd_soc_acpi_mach *mach; struct snd_soc_acpi_mach *mach_alt; - for (mach = machines; mach->id[0]; mach++) { - if (acpi_dev_present(mach->id, NULL, -1)) { + for (mach = machines; mach->id[0] || mach->comp_ids; mach++) { + if (snd_soc_acpi_id_present(mach)) { if (mach->machine_quirk) { mach_alt = mach->machine_quirk(mach); if (!mach_alt) |