[PATCH v2 3/7] ASoC: max980*: use i2c_match_id and simple i2c probe

Stephen Kitt
2022-04-15T16:07:03Z

In the context of an i2c probe, i2c_match_id with the module id table
and the probed client never returns null, so removing the null check
on the i2c_device_id pointer is safe.

The i2c id tables are moved up before the probe function, as
suggested by Wolfram Sang.

Signed-off-by: Stephen Kitt <steve@sk2.org>
---
sound/soc/codecs/max98088.c | 21 +++++++++++----------
sound/soc/codecs/max98090.c | 23 ++++++++++++-----------
sound/soc/codecs/max98095.c | 19 ++++++++++---------
3 files changed, 33 insertions(+), 30 deletions(-)

diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c
index 429717d4ac5a..5ef2e1279ee7 100644
--- a/sound/soc/codecs/max98088.c
+++ b/sound/soc/codecs/max98088.c
@@ -1737,11 +1737,18 @@ static const struct snd_soc_component_driver soc_component_dev_max98088 = {
.non_legacy_dai_naming = 1,
};

-static int max98088_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static const struct i2c_device_id max98088_i2c_id[] = {
+ { "max98088", MAX98088 },
+ { "max98089", MAX98089 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max98088_i2c_id);
+
+static int max98088_i2c_probe(struct i2c_client *i2c)
{
struct max98088_priv *max98088;
int ret;
+ const struct i2c_device_id *id;

max98088 = devm_kzalloc(&i2c->dev, sizeof(struct max98088_priv),
GFP_KERNEL);
@@ -1757,6 +1764,7 @@ static int max98088_i2c_probe(struct i2c_client *i2c,
if (PTR_ERR(max98088->mclk) == -EPROBE_DEFER)
return PTR_ERR(max98088->mclk);

+ id = i2c_match_id(max98088_i2c_id, i2c);
max98088->devtype = id->driver_data;

i2c_set_clientdata(i2c, max98088);
@@ -1767,13 +1775,6 @@ static int max98088_i2c_probe(struct i2c_client *i2c,
return ret;
}

-static const struct i2c_device_id max98088_i2c_id[] = {
- { "max98088", MAX98088 },
- { "max98089", MAX98089 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, max98088_i2c_id);
-
#if defined(CONFIG_OF)
static const struct of_device_id max98088_of_match[] = {
{ .compatible = "maxim,max98088" },
@@ -1788,7 +1789,7 @@ static struct i2c_driver max98088_i2c_driver = {
.name = "max98088",
.of_match_table = of_match_ptr(max98088_of_match),
},
- .probe = max98088_i2c_probe,
+ .probe_new = max98088_i2c_probe,
.id_table = max98088_i2c_id,
};

diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index b45ec35cd63c..4058e147413c 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -2529,8 +2529,14 @@ static const struct regmap_config max98090_regmap = {
.cache_type = REGCACHE_RBTREE,
};

-static int max98090_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *i2c_id)
+static const struct i2c_device_id max98090_i2c_id[] = {
+ { "max98090", MAX98090 },
+ { "max98091", MAX98091 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max98090_i2c_id);
+
+static int max98090_i2c_probe(struct i2c_client *i2c)
{
struct max98090_priv *max98090;
const struct acpi_device_id *acpi_id;
@@ -2552,7 +2558,9 @@ static int max98090_i2c_probe(struct i2c_client *i2c,
return -EINVAL;
}
driver_data = acpi_id->driver_data;
- } else if (i2c_id) {
+ } else {
+ const struct i2c_device_id *i2c_id =
+ i2c_match_id(max98090_i2c_id, i2c);
driver_data = i2c_id->driver_data;
}

@@ -2659,13 +2667,6 @@ static const struct dev_pm_ops max98090_pm = {
SET_SYSTEM_SLEEP_PM_OPS(NULL, max98090_resume)
};

-static const struct i2c_device_id max98090_i2c_id[] = {
- { "max98090", MAX98090 },
- { "max98091", MAX98091 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, max98090_i2c_id);
-
#ifdef CONFIG_OF
static const struct of_device_id max98090_of_match[] = {
{ .compatible = "maxim,max98090", },
@@ -2690,7 +2691,7 @@ static struct i2c_driver max98090_i2c_driver = {
.of_match_table = of_match_ptr(max98090_of_match),
.acpi_match_table = ACPI_PTR(max98090_acpi_match),
},
- .probe = max98090_i2c_probe,
+ .probe_new = max98090_i2c_probe,
.shutdown = max98090_i2c_shutdown,
.remove = max98090_i2c_remove,
.id_table = max98090_i2c_id,
diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c
index 4977b00ddf5f..7bca99fa61b5 100644
--- a/sound/soc/codecs/max98095.c
+++ b/sound/soc/codecs/max98095.c
@@ -2106,11 +2106,17 @@ static const struct snd_soc_component_driver soc_component_dev_max98095 = {
.non_legacy_dai_naming = 1,
};

-static int max98095_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static const struct i2c_device_id max98095_i2c_id[] = {
+ { "max98095", MAX98095 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max98095_i2c_id);
+
+static int max98095_i2c_probe(struct i2c_client *i2c)
{
struct max98095_priv *max98095;
int ret;
+ const struct i2c_device_id *id;

max98095 = devm_kzalloc(&i2c->dev, sizeof(struct max98095_priv),
GFP_KERNEL);
@@ -2126,6 +2132,7 @@ static int max98095_i2c_probe(struct i2c_client *i2c,
return ret;
}

+ id = i2c_match_id(max98095_i2c_id, i2c);
max98095->devtype = id->driver_data;
i2c_set_clientdata(i2c, max98095);
max98095->pdata = i2c->dev.platform_data;
@@ -2136,12 +2143,6 @@ static int max98095_i2c_probe(struct i2c_client *i2c,
return ret;
}

-static const struct i2c_device_id max98095_i2c_id[] = {
- { "max98095", MAX98095 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, max98095_i2c_id);
-
#ifdef CONFIG_OF
static const struct of_device_id max98095_of_match[] = {
{ .compatible = "maxim,max98095", },
@@ -2155,7 +2156,7 @@ static struct i2c_driver max98095_i2c_driver = {
.name = "max98095",
.of_match_table = of_match_ptr(max98095_of_match),
},
- .probe = max98095_i2c_probe,
+ .probe_new = max98095_i2c_probe,
.id_table = max98095_i2c_id,
};

--
2.27.0