diff mbox series

[1/3] ASoC: tlv320aic32x4: prepare driver for different device variants

Message ID 20210615094933.3076392-2-ch@denx.de (mailing list archive)
State Superseded
Headers show
Series ASoC: tlv320aic32x4: Add support for TAS2505 | expand

Commit Message

Claudius Heine June 15, 2021, 9:49 a.m. UTC 
With this change it will be possible to add different code paths for
similar devices.

Signed-off-by: Claudius Heine <ch@denx.de>
---
 sound/soc/codecs/tlv320aic32x4-i2c.c | 20 ++++++++++++++++----
 sound/soc/codecs/tlv320aic32x4-spi.c | 23 +++++++++++++++++++----
 sound/soc/codecs/tlv320aic32x4.c     |  3 +++
 sound/soc/codecs/tlv320aic32x4.h     |  5 +++++
 4 files changed, 43 insertions(+), 8 deletions(-)

Comments

Mark Brown June 15, 2021, 11:54 a.m. UTC | #1 
On Tue, Jun 15, 2021 at 11:49:30AM +0200, Claudius Heine wrote:

> With this change it will be possible to add different code paths for
> similar devices.

>  static const struct i2c_device_id aic32x4_i2c_id[] = {
> -	{ "tlv320aic32x4", 0 },
> -	{ "tlv320aic32x6", 1 },
> +	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
> +	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
>  	{ /* sentinel */ }

It appears that the device already supports multiple variants?
Claudius Heine June 15, 2021, 12:06 p.m. UTC | #2 
Hi Mark,

On 2021-06-15 13:54, Mark Brown wrote:
> On Tue, Jun 15, 2021 at 11:49:30AM +0200, Claudius Heine wrote:
> 
>> With this change it will be possible to add different code paths for
>> similar devices.
> 
>>   static const struct i2c_device_id aic32x4_i2c_id[] = {
>> -	{ "tlv320aic32x4", 0 },
>> -	{ "tlv320aic32x6", 1 },
>> +	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
>> +	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
>>   	{ /* sentinel */ }
> 
> It appears that the device already supports multiple variants?

Those values aren't used anywhere as far as I can see.

regards,
Claudius
Mark Brown June 15, 2021, 12:30 p.m. UTC | #3 
On Tue, Jun 15, 2021 at 02:06:30PM +0200, Claudius Heine wrote:
> On 2021-06-15 13:54, Mark Brown wrote:
> > On Tue, Jun 15, 2021 at 11:49:30AM +0200, Claudius Heine wrote:

> > > With this change it will be possible to add different code paths for
> > > similar devices.

> > > -	{ "tlv320aic32x4", 0 },
> > > -	{ "tlv320aic32x6", 1 },
> > > +	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
> > > +	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
> > >   	{ /* sentinel */ }

> > It appears that the device already supports multiple variants?

> Those values aren't used anywhere as far as I can see.

The point here is that you need a better changelog, the driver clearly
already supports multiple devices so we need a few more words to explain
what this is doing.
diff mbox series

Patch

diff --git a/sound/soc/codecs/tlv320aic32x4-i2c.c b/sound/soc/codecs/tlv320aic32x4-i2c.c
index 6d54cbf70a0b..247fb1e13674 100644
--- a/sound/soc/codecs/tlv320aic32x4-i2c.c
+++ b/sound/soc/codecs/tlv320aic32x4-i2c.c
@@ -16,6 +16,8 @@ 
 
 #include "tlv320aic32x4.h"
 
+static const struct of_device_id aic32x4_of_id[];
+
 static int aic32x4_i2c_probe(struct i2c_client *i2c,
 			     const struct i2c_device_id *id)
 {
@@ -27,6 +29,16 @@  static int aic32x4_i2c_probe(struct i2c_client *i2c,
 	config.val_bits = 8;
 
 	regmap = devm_regmap_init_i2c(i2c, &config);
+
+	if (i2c->dev.of_node) {
+		const struct of_device_id *oid;
+
+		oid = of_match_node(aic32x4_of_id, i2c->dev.of_node);
+		dev_set_drvdata(&i2c->dev, (void *)oid->data);
+	} else if (id) {
+		dev_set_drvdata(&i2c->dev, (void *)id->driver_data);
+	}
+
 	return aic32x4_probe(&i2c->dev, regmap);
 }
 
@@ -36,15 +48,15 @@  static int aic32x4_i2c_remove(struct i2c_client *i2c)
 }
 
 static const struct i2c_device_id aic32x4_i2c_id[] = {
-	{ "tlv320aic32x4", 0 },
-	{ "tlv320aic32x6", 1 },
+	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
+	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);
 
 static const struct of_device_id aic32x4_of_id[] = {
-	{ .compatible = "ti,tlv320aic32x4", },
-	{ .compatible = "ti,tlv320aic32x6", },
+	{ .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 },
+	{ .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 },
 	{ /* senitel */ }
 };
 MODULE_DEVICE_TABLE(of, aic32x4_of_id);
diff --git a/sound/soc/codecs/tlv320aic32x4-spi.c b/sound/soc/codecs/tlv320aic32x4-spi.c
index a22e7700bfc8..e81c72958a82 100644
--- a/sound/soc/codecs/tlv320aic32x4-spi.c
+++ b/sound/soc/codecs/tlv320aic32x4-spi.c
@@ -16,6 +16,8 @@ 
 
 #include "tlv320aic32x4.h"
 
+static const struct of_device_id aic32x4_of_id[];
+
 static int aic32x4_spi_probe(struct spi_device *spi)
 {
 	struct regmap *regmap;
@@ -28,6 +30,19 @@  static int aic32x4_spi_probe(struct spi_device *spi)
 	config.read_flag_mask = 0x01;
 
 	regmap = devm_regmap_init_spi(spi, &config);
+
+	if (spi->dev.of_node) {
+		const struct of_device_id *oid;
+
+		oid = of_match_node(aic32x4_of_id, spi->dev.of_node);
+		dev_set_drvdata(&spi->dev, (void *)oid->data);
+	} else {
+		const struct spi_device_id *id_entry;
+
+		id_entry = spi_get_device_id(spi);
+		dev_set_drvdata(&spi->dev, (void *)id_entry->driver_data);
+	}
+
 	return aic32x4_probe(&spi->dev, regmap);
 }
 
@@ -37,15 +52,15 @@  static int aic32x4_spi_remove(struct spi_device *spi)
 }
 
 static const struct spi_device_id aic32x4_spi_id[] = {
-	{ "tlv320aic32x4", 0 },
-	{ "tlv320aic32x6", 1 },
+	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
+	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
 
 static const struct of_device_id aic32x4_of_id[] = {
-	{ .compatible = "ti,tlv320aic32x4", },
-	{ .compatible = "ti,tlv320aic32x6", },
+	{ .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 },
+	{ .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 },
 	{ /* senitel */ }
 };
 MODULE_DEVICE_TABLE(of, aic32x4_of_id);
diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
index b689f26fc4be..70a1574fb72a 100644
--- a/sound/soc/codecs/tlv320aic32x4.c
+++ b/sound/soc/codecs/tlv320aic32x4.c
@@ -48,6 +48,7 @@  struct aic32x4_priv {
 
 	struct aic32x4_setup_data *setup;
 	struct device *dev;
+	enum aic32x4_type type;
 };
 
 static int aic32x4_reset_adc(struct snd_soc_dapm_widget *w,
@@ -1198,6 +1199,8 @@  int aic32x4_probe(struct device *dev, struct regmap *regmap)
 		return -ENOMEM;
 
 	aic32x4->dev = dev;
+	aic32x4->type = (enum aic32x4_type)dev_get_drvdata(dev);
+
 	dev_set_drvdata(dev, aic32x4);
 
 	if (pdata) {
diff --git a/sound/soc/codecs/tlv320aic32x4.h b/sound/soc/codecs/tlv320aic32x4.h
index 7550122e9f8a..8a18dbec76a6 100644
--- a/sound/soc/codecs/tlv320aic32x4.h
+++ b/sound/soc/codecs/tlv320aic32x4.h
@@ -10,6 +10,11 @@ 
 struct device;
 struct regmap_config;
 
+enum aic32x4_type {
+	AIC32X4_TYPE_AIC32X4 = 0,
+	AIC32X4_TYPE_AIC32X6,
+};
+
 extern const struct regmap_config aic32x4_regmap_config;
 int aic32x4_probe(struct device *dev, struct regmap *regmap);
 int aic32x4_remove(struct device *dev);