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85 lines
2.8 KiB
Diff
85 lines
2.8 KiB
Diff
From 2741c914411cdc260eafe7887536e80d9d1c6966 Mon Sep 17 00:00:00 2001
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From: Brent Lu <brent.lu@intel.com>
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Date: Sat, 30 Oct 2021 01:14:04 +0800
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Subject: [PATCH 433/435] ASoC: soc-acpi: add comp_ids field for machine driver
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matching
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A machine driver needs to be enumerated by more than one ACPI HID if
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it supports second headphone driver (i.e. rt5682 and rt5682s).
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However, the id field in snd_soc_acpi_mach structure could contain
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only one HID. By adding a 'comp_ids' field which can contain several
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HIDs, we can enumerate a machine driver by multiple ACPI HIDs.
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Signed-off-by: Brent Lu <brent.lu@intel.com>
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Link: https://lore.kernel.org/r/20211029171409.611600-2-brent.lu@intel.com
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Signed-off-by: Mark Brown <broonie@kernel.org>
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---
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include/sound/soc-acpi.h | 3 +++
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sound/soc/soc-acpi.c | 24 ++++++++++++++++++++++--
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2 files changed, 25 insertions(+), 2 deletions(-)
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diff --git a/include/sound/soc-acpi.h b/include/sound/soc-acpi.h
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index d4fecd025..20958aedc 100644
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--- a/include/sound/soc-acpi.h
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+++ b/include/sound/soc-acpi.h
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@@ -150,6 +150,8 @@ struct snd_soc_acpi_link_adr {
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* all firmware/topology related fields.
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*
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* @id: ACPI ID (usually the codec's) used to find a matching machine driver.
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+ * @comp_ids: list of compatible audio codecs using the same machine driver,
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+ * firmware and topology
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* @link_mask: describes required board layout, e.g. for SoundWire.
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* @links: array of link _ADR descriptors, null terminated.
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* @drv_name: machine driver name
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@@ -168,6 +170,7 @@ struct snd_soc_acpi_link_adr {
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/* Descriptor for SST ASoC machine driver */
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struct snd_soc_acpi_mach {
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const u8 id[ACPI_ID_LEN];
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+ const struct snd_soc_acpi_codecs *comp_ids;
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const u32 link_mask;
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const struct snd_soc_acpi_link_adr *links;
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const char *drv_name;
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diff --git a/sound/soc/soc-acpi.c b/sound/soc/soc-acpi.c
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index 395229bf5..2ae99b49d 100644
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--- a/sound/soc/soc-acpi.c
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+++ b/sound/soc/soc-acpi.c
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@@ -8,14 +8,34 @@
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#include <linux/module.h>
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#include <sound/soc-acpi.h>
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+static bool snd_soc_acpi_id_present(struct snd_soc_acpi_mach *machine)
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+{
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+ const struct snd_soc_acpi_codecs *comp_ids = machine->comp_ids;
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+ int i;
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+
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+ if (machine->id[0]) {
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+ if (acpi_dev_present(machine->id, NULL, -1))
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+ return true;
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+ }
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+
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+ if (comp_ids) {
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+ for (i = 0; i < comp_ids->num_codecs; i++) {
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+ if (acpi_dev_present(comp_ids->codecs[i], NULL, -1))
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+ return true;
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+ }
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+ }
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+
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+ return false;
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+}
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+
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struct snd_soc_acpi_mach *
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snd_soc_acpi_find_machine(struct snd_soc_acpi_mach *machines)
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{
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struct snd_soc_acpi_mach *mach;
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struct snd_soc_acpi_mach *mach_alt;
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- for (mach = machines; mach->id[0]; mach++) {
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- if (acpi_dev_present(mach->id, NULL, -1)) {
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+ for (mach = machines; mach->id[0] || mach->comp_ids; mach++) {
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+ if (snd_soc_acpi_id_present(mach)) {
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if (mach->machine_quirk) {
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mach_alt = mach->machine_quirk(mach);
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if (!mach_alt)
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--
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2.35.2
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