Commit e99f3c7e authored by Stefan Binding's avatar Stefan Binding Committed by Takashi Iwai
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ALSA: hda: cs35l41: Save Subsystem ID inside CS35L41 Driver 



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: default avatarStefan Binding <sbinding@opensource.cirrus.com>
Signed-off-by: default avatarVitaly Rodionov <vitalyr@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220630002335.366545-6-vitalyr@opensource.cirrus.com


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 2e81e1ff

sound/pci/hda/cs35l41_hda.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

sound/pci/hda/cs35l41_hda.h

+1 −0
Original line number Diff line number Diff line
@@ -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;