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Message-Id: <20221028075045.493191-1-peter@berginkonsult.se>
Date: Fri, 28 Oct 2022 09:50:44 +0200
From: Peter Bergin <peter@...ginkonsult.se>
To: james.schulman@...rus.com, david.rhodes@...rus.com,
tanureal@...nsource.cirrus.com, rf@...nsource.cirrus.com,
broonie@...nel.org
Cc: Peter Bergin <peter@...ginkonsult.se>,
Liam Girdwood <lgirdwood@...il.com>,
Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
patches@...nsource.cirrus.com, linux-kernel@...r.kernel.org
Subject: [PATCH v2] ASoC: cs42xx8-i2c.c: add module device table for of
When trying to connect the device with the driver through
device-tree it is not working. The of_device_id is defined in
cs42xx8.c but is not correctly included in cs42xx8-i2c.c.
Move of_device_id table to cs42xx8-i2c.c. Get cs42xx8_driver_data
in cs42xx8_i2c_probe() and pass as argument to cs42xx8_probe(). Move
error check if no driver data found to cs42xx8_i2c_probe().
Matching of device in cs42xx8_i2c_probe() is coded with inspiration
from tlv320aic32x4-i2c.c.
Signed-off-by: Peter Bergin <peter@...ginkonsult.se>
---
v2: reworked and removed duplication of cs42xx8_of_match
sound/soc/codecs/cs42xx8-i2c.c | 49 +++++++++++++++++++++++++++++++---
sound/soc/codecs/cs42xx8.c | 33 +++--------------------
sound/soc/codecs/cs42xx8.h | 5 +---
3 files changed, 50 insertions(+), 37 deletions(-)
diff --git a/sound/soc/codecs/cs42xx8-i2c.c b/sound/soc/codecs/cs42xx8-i2c.c
index bd80e9fc907f..9f9e57398272 100644
--- a/sound/soc/codecs/cs42xx8-i2c.c
+++ b/sound/soc/codecs/cs42xx8-i2c.c
@@ -17,10 +17,32 @@
#include "cs42xx8.h"
+static const struct i2c_device_id cs42xx8_i2c_id[];
+static const struct of_device_id cs42xx8_of_match[];
+
static int cs42xx8_i2c_probe(struct i2c_client *i2c)
{
- int ret = cs42xx8_probe(&i2c->dev,
- devm_regmap_init_i2c(i2c, &cs42xx8_regmap_config));
+ int ret;
+ struct cs42xx8_driver_data *drvdata;
+
+ if (i2c->dev.of_node) {
+ const struct of_device_id *oid;
+
+ oid = of_match_node(cs42xx8_of_match, i2c->dev.of_node);
+ if (!oid)
+ goto err_not_found;
+ drvdata = (struct cs42xx8_driver_data *)oid->data;
+ } else {
+ const struct i2c_device_id *id;
+
+ id = i2c_match_id(cs42xx8_i2c_id, i2c);
+ if (!id)
+ goto err_not_found;
+ drvdata = (struct cs42xx8_driver_data *)id->driver_data;
+ }
+
+ ret = cs42xx8_probe(&i2c->dev,
+ devm_regmap_init_i2c(i2c, &cs42xx8_regmap_config), drvdata);
if (ret)
return ret;
@@ -28,6 +50,10 @@ static int cs42xx8_i2c_probe(struct i2c_client *i2c)
pm_request_idle(&i2c->dev);
return 0;
+
+err_not_found:
+ dev_err(&i2c->dev, "failed to find driver data\n");
+ return -EINVAL;
}
static void cs42xx8_i2c_remove(struct i2c_client *i2c)
@@ -35,7 +61,24 @@ static void cs42xx8_i2c_remove(struct i2c_client *i2c)
pm_runtime_disable(&i2c->dev);
}
-static struct i2c_device_id cs42xx8_i2c_id[] = {
+static const struct cs42xx8_driver_data cs42448_data = {
+ .name = "cs42448",
+ .num_adcs = 3,
+};
+
+static const struct cs42xx8_driver_data cs42888_data = {
+ .name = "cs42888",
+ .num_adcs = 2,
+};
+
+static const struct of_device_id cs42xx8_of_match[] = {
+ { .compatible = "cirrus,cs42448", .data = &cs42448_data, },
+ { .compatible = "cirrus,cs42888", .data = &cs42888_data, },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, cs42xx8_of_match);
+
+static const struct i2c_device_id cs42xx8_i2c_id[] = {
{"cs42448", (kernel_ulong_t)&cs42448_data},
{"cs42888", (kernel_ulong_t)&cs42888_data},
{}
diff --git a/sound/soc/codecs/cs42xx8.c b/sound/soc/codecs/cs42xx8.c
index d14eb2f6e1dd..957ae08bcf7c 100644
--- a/sound/soc/codecs/cs42xx8.c
+++ b/sound/soc/codecs/cs42xx8.c
@@ -499,29 +499,8 @@ static const struct snd_soc_component_driver cs42xx8_driver = {
.endianness = 1,
};
-const struct cs42xx8_driver_data cs42448_data = {
- .name = "cs42448",
- .num_adcs = 3,
-};
-EXPORT_SYMBOL_GPL(cs42448_data);
-
-const struct cs42xx8_driver_data cs42888_data = {
- .name = "cs42888",
- .num_adcs = 2,
-};
-EXPORT_SYMBOL_GPL(cs42888_data);
-
-const struct of_device_id cs42xx8_of_match[] = {
- { .compatible = "cirrus,cs42448", .data = &cs42448_data, },
- { .compatible = "cirrus,cs42888", .data = &cs42888_data, },
- { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, cs42xx8_of_match);
-EXPORT_SYMBOL_GPL(cs42xx8_of_match);
-
-int cs42xx8_probe(struct device *dev, struct regmap *regmap)
+int cs42xx8_probe(struct device *dev, struct regmap *regmap, struct cs42xx8_driver_data *drvdata)
{
- const struct of_device_id *of_id;
struct cs42xx8_priv *cs42xx8;
int ret, val, i;
@@ -535,17 +514,11 @@ int cs42xx8_probe(struct device *dev, struct regmap *regmap)
if (cs42xx8 == NULL)
return -ENOMEM;
- cs42xx8->regmap = regmap;
dev_set_drvdata(dev, cs42xx8);
- of_id = of_match_device(cs42xx8_of_match, dev);
- if (of_id)
- cs42xx8->drvdata = of_id->data;
+ cs42xx8->regmap = regmap;
- if (!cs42xx8->drvdata) {
- dev_err(dev, "failed to find driver data\n");
- return -EINVAL;
- }
+ cs42xx8->drvdata = drvdata;
cs42xx8->gpiod_reset = devm_gpiod_get_optional(dev, "reset",
GPIOD_OUT_HIGH);
diff --git a/sound/soc/codecs/cs42xx8.h b/sound/soc/codecs/cs42xx8.h
index d36c61b6df74..938e21d92ac2 100644
--- a/sound/soc/codecs/cs42xx8.h
+++ b/sound/soc/codecs/cs42xx8.h
@@ -19,11 +19,8 @@ struct cs42xx8_driver_data {
};
extern const struct dev_pm_ops cs42xx8_pm;
-extern const struct cs42xx8_driver_data cs42448_data;
-extern const struct cs42xx8_driver_data cs42888_data;
extern const struct regmap_config cs42xx8_regmap_config;
-extern const struct of_device_id cs42xx8_of_match[];
-int cs42xx8_probe(struct device *dev, struct regmap *regmap);
+int cs42xx8_probe(struct device *dev, struct regmap *regmap, struct cs42xx8_driver_data *drvdata);
/* CS42888 register map */
#define CS42XX8_CHIPID 0x01 /* Chip ID */
--
2.34.1
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