From: Stefan Binding sbinding@opensource.cirrus.com
The Subsystem ID is read from the HDA driver, and will be used by the CS35L41 driver to be able to uniquely identify the laptop, which is required to be able to define firmware to be used by specific models.
Signed-off-by: Stefan Binding sbinding@opensource.cirrus.com Signed-off-by: Vitaly Rodionov vitalyr@opensource.cirrus.com ---
Changes since v2: - No change
sound/pci/hda/cs35l41_hda.c | 3 +++ sound/pci/hda/cs35l41_hda.h | 1 + sound/pci/hda/hda_component.h | 1 + sound/pci/hda/patch_realtek.c | 1 + 4 files changed, 6 insertions(+)
diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c index fe2ba03e602b..c235b899aa04 100644 --- a/sound/pci/hda/cs35l41_hda.c +++ b/sound/pci/hda/cs35l41_hda.c @@ -346,6 +346,9 @@ static int cs35l41_hda_bind(struct device *dev, struct device *master, void *mas return -EBUSY;
comps->dev = dev; + if (!cs35l41->acpi_subsystem_id) + cs35l41->acpi_subsystem_id = devm_kasprintf(dev, GFP_KERNEL, + "%.8x", comps->subsystem_id); cs35l41->codec = comps->codec; strscpy(comps->name, dev_name(dev), sizeof(comps->name)); comps->playback_hook = cs35l41_hda_playback_hook; diff --git a/sound/pci/hda/cs35l41_hda.h b/sound/pci/hda/cs35l41_hda.h index 03c5f14631dd..b8352088a5cb 100644 --- a/sound/pci/hda/cs35l41_hda.h +++ b/sound/pci/hda/cs35l41_hda.h @@ -42,6 +42,7 @@ struct cs35l41_hda { int channel_index; unsigned volatile long irq_errors; const char *amp_name; + const char *acpi_subsystem_id; struct regmap_irq_chip_data *irq_data; bool firmware_running; bool halo_initialized; diff --git a/sound/pci/hda/hda_component.h b/sound/pci/hda/hda_component.h index 534e845b9cd1..fa6df52e7855 100644 --- a/sound/pci/hda/hda_component.h +++ b/sound/pci/hda/hda_component.h @@ -14,6 +14,7 @@ struct hda_component { struct device *dev; char name[HDA_MAX_NAME_SIZE]; + int subsystem_id; struct hda_codec *codec; void (*playback_hook)(struct device *dev, int action); }; diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index cd289b17ca13..b8249c4dcb1d 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6632,6 +6632,7 @@ static void cs35l41_generic_fixup(struct hda_codec *cdc, int action, const char if (!name) return; spec->comps[i].codec = cdc; + spec->comps[i].subsystem_id = cdc->core.subsystem_id; component_match_add(dev, &spec->match, component_compare_dev_name, name); } ret = component_master_add_with_match(dev, &comp_master_ops, spec->match);