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ASoC: tas2764: Extend driver to SN012776

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[ Upstream commit ad18392962df46a858432839cc6bcaf2ede7cc86 ]

SN012776 is a speaker amp chip found in Apple's 2021 laptops. It appears
similar and more-or-less compatible to TAS2764. Extend the TAS2764
driver with some SN012776 specifics and configure the chip assuming
it's in one of the Apple machines.

Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Signed-off-by: James Calligeros <jcalligeros99@gmail.com>
Link: https://patch.msgid.link/20250227-apple-codec-changes-v3-3-cbb130030acf@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 592ab3936b09 ("ASoC: tas2764: Reinit cache on part reset")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Martin Povišer
2025-02-27 22:07:30 +10:00
committed by Greg Kroah-Hartman
parent 9468bcd92d
commit d1f8358c5d
2 changed files with 43 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
sound/soc/codecs/tas2764.c
View File

@@ -14,6 +14,7 @@
#include <linux/regulator/consumer.h>
#include <linux/regmap.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/slab.h>
#include <sound/soc.h>
#include <sound/pcm.h>
@@ -23,6 +24,11 @@
#include "tas2764.h"
enum tas2764_devid {
DEVID_TAS2764 = 0,
DEVID_SN012776 = 1
};
struct tas2764_priv {
struct snd_soc_component *component;
struct gpio_desc *reset_gpio;
@@ -30,7 +36,8 @@ struct tas2764_priv {
struct regmap *regmap;
struct device *dev;
int irq;
enum tas2764_devid devid;
int v_sense_slot;
int i_sense_slot;
@@ -525,10 +532,16 @@ static struct snd_soc_dai_driver tas2764_dai_driver[] = {
},
};
static uint8_t sn012776_bop_presets[] = {
0x01, 0x32, 0x02, 0x22, 0x83, 0x2d, 0x80, 0x02, 0x06,
0x32, 0x46, 0x30, 0x02, 0x06, 0x38, 0x40, 0x30, 0x02,
0x06, 0x3e, 0x37, 0x30, 0xff, 0xe6
};
static int tas2764_codec_probe(struct snd_soc_component *component)
{
struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);
int ret;
int ret, i;
tas2764->component = component;
@@ -577,6 +590,27 @@ static int tas2764_codec_probe(struct snd_soc_component *component)
if (ret < 0)
return ret;
switch (tas2764->devid) {
case DEVID_SN012776:
ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
TAS2764_PWR_CTRL_BOP_SRC,
TAS2764_PWR_CTRL_BOP_SRC);
if (ret < 0)
return ret;
for (i = 0; i < ARRAY_SIZE(sn012776_bop_presets); i++) {
ret = snd_soc_component_write(component,
TAS2764_BOP_CFG0 + i,
sn012776_bop_presets[i]);
if (ret < 0)
return ret;
}
break;
default:
break;
}
return 0;
}
@@ -708,6 +742,8 @@ static int tas2764_i2c_probe(struct i2c_client *client)
if (!tas2764)
return -ENOMEM;
tas2764->devid = (enum tas2764_devid)of_device_get_match_data(&client->dev);
tas2764->dev = &client->dev;
tas2764->irq = client->irq;
i2c_set_clientdata(client, tas2764);
@@ -744,7 +780,8 @@ MODULE_DEVICE_TABLE(i2c, tas2764_i2c_id);
#if defined(CONFIG_OF)
static const struct of_device_id tas2764_of_match[] = {
{ .compatible = "ti,tas2764" },
{ .compatible = "ti,tas2764", .data = (void *)DEVID_TAS2764 },
{ .compatible = "ti,sn012776", .data = (void *)DEVID_SN012776 },
{},
};
MODULE_DEVICE_TABLE(of, tas2764_of_match);

3
sound/soc/codecs/tas2764.h
View File

@@ -29,6 +29,7 @@
#define TAS2764_PWR_CTRL_ACTIVE 0x0
#define TAS2764_PWR_CTRL_MUTE BIT(0)
#define TAS2764_PWR_CTRL_SHUTDOWN BIT(1)
#define TAS2764_PWR_CTRL_BOP_SRC BIT(7)
#define TAS2764_VSENSE_POWER_EN 3
#define TAS2764_ISENSE_POWER_EN 4
@@ -116,4 +117,6 @@
#define TAS2764_INT_CLK_CFG TAS2764_REG(0x0, 0x5c)
#define TAS2764_INT_CLK_CFG_IRQZ_CLR BIT(2)
#define TAS2764_BOP_CFG0 TAS2764_REG(0X0, 0x1d)
#endif /* __TAS2764__ */