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ASoC: wm8804: Add ACPI support

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HID made of either Wolfson/CirrusLogic PCI ID + 8804 identifier.

This helps enumerate the HifiBerry Digi+ HAT boards on the Up2 platform.

The scripts at https://github.com/thesofproject/acpi-scripts can be
used to add the ACPI initrd overlays.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2018-08-22 22:49:36 -05:00 committed by Mark Brown
parent 7509487785
commit 960cdd50ca
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GPG Key ID: 24D68B725D5487D0
1 changed files with 14 additions and 1 deletions
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15
sound/soc/codecs/wm8804-i2c.c
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@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/acpi.h>
#include "wm8804.h"
@ -40,17 +41,29 @@ static const struct i2c_device_id wm8804_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id);
#if defined(CONFIG_OF)
static const struct of_device_id wm8804_of_match[] = {
{ .compatible = "wlf,wm8804", },
{ }
};
MODULE_DEVICE_TABLE(of, wm8804_of_match);
#endif
#ifdef CONFIG_ACPI
static const struct acpi_device_id wm8804_acpi_match[] = {
{ "1AEC8804", 0 }, /* Wolfson PCI ID + part ID */
{ "10138804", 0 }, /* Cirrus Logic PCI ID + part ID */
{ },
};
MODULE_DEVICE_TABLE(acpi, wm8804_acpi_match);
#endif
static struct i2c_driver wm8804_i2c_driver = {
.driver = {
.name = "wm8804",
.pm = &wm8804_pm,
.of_match_table = wm8804_of_match,
.of_match_table = of_match_ptr(wm8804_of_match),
.acpi_match_table = ACPI_PTR(wm8804_acpi_match),
},
.probe = wm8804_i2c_probe,
.remove = wm8804_i2c_remove,