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ALSA: hda: cs35l41: Save Subsystem ID inside CS35L41 Driver

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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>
Link: https://lore.kernel.org/r/20220630002335.366545-6-vitalyr@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Stefan Binding 2022-06-30 01:23:26 +01:00 committed by Takashi Iwai
parent 2e81e1fffd
commit e99f3c7e32
2 changed files with 4 additions and 0 deletions
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3
sound/pci/hda/cs35l41_hda.c
View file

@ -355,6 +355,9 @@ 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->codec->core.subsystem_id);
cs35l41->codec = comps->codec;
strscpy(comps->name, dev_name(dev), sizeof(comps->name));
comps->playback_hook = cs35l41_hda_playback_hook;

1
sound/pci/hda/cs35l41_hda.h
View file

@ -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 mutex fw_mutex;
struct regmap_irq_chip_data *irq_data;
bool firmware_running;