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Message-Id: <20250227-apple-codec-changes-v3-3-cbb130030acf@gmail.com>
Date: Thu, 27 Feb 2025 22:07:30 +1000
From: James Calligeros <jcalligeros99@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
Shenghao Ding <shenghao-ding@...com>, Kevin Lu <kevin-lu@...com>,
Baojun Xu <baojun.xu@...com>, Dan Murphy <dmurphy@...com>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Shi Fu <shifu0704@...ndersoft.com>,
Jean Delvare <jdelvare@...e.com>, Guenter Roeck <linux@...ck-us.net>
Cc: Alyssa Rosenzweig <alyssa@...enzweig.io>,
Martin Povišer <povik+lin@...ebit.org>,
Hector Martin <marcan@...can.st>, linux-sound@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
asahi@...ts.linux.dev, linux-hwmon@...r.kernel.org,
Neal Gompa <neal@...pa.dev>, James Calligeros <jcalligeros99@...il.com>
Subject: [PATCH v3 03/20] ASoC: tas2764: Extend driver to SN012776
From: Martin Povišer <povik+lin@...ebit.org>
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@...pa.dev>
Signed-off-by: Martin Povišer <povik+lin@...ebit.org>
Signed-off-by: James Calligeros <jcalligeros99@...il.com>
---
sound/soc/codecs/tas2764.c | 43 +++++++++++++++++++++++--
sound/soc/codecs/tas2764.h | 3 ++
2 files changed, 43 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c
index c0a1d0c2a93890105a169717a7fb75ec05f93146..d9b4f898789fa9b59c94c97e3b130950b88c3a76 100644
--- a/sound/soc/codecs/tas2764.c
+++ b/sound/soc/codecs/tas2764.c
@@ -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;
@@ -533,10 +540,16 @@ 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;
@@ -585,6 +598,27 @@ 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;
}
@@ -716,6 +750,8 @@ 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);
@@ -752,7 +788,8 @@ 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);
diff --git a/sound/soc/codecs/tas2764.h b/sound/soc/codecs/tas2764.h
index 9490f2686e38919a726e649884d9b6ad761493a2..69c0f91cb423986f7f0ded0b2160927f024d957d 100644
--- a/sound/soc/codecs/tas2764.h
+++ b/sound/soc/codecs/tas2764.h
@@ -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__ */
--
2.48.1
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