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hwmon: (sg2042) Use per-client debugfs entry

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The I2C core now offers a debugfs-directory per client. Use it and
remove the custom handling.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20250125123941.36729-12-wsa+renesas@sang-engineering.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Wolfram Sang 2025-01-25 13:39:44 +01:00 • committed by Guenter Roeck
parent 2e522c2933
commit cd4db38c43
1 changed files with 7 additions and 37 deletions
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44
drivers/hwmon/sg2042-mcu.c
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@ -50,12 +50,9 @@
struct sg2042_mcu_data { struct sg2042_mcu_data {
struct i2c_client *client; struct i2c_client *client;
struct dentry *debugfs;
struct mutex mutex; struct mutex mutex;
}; };
static struct dentry *sgmcu_debugfs;
static ssize_t reset_count_show(struct device *dev, static ssize_t reset_count_show(struct device *dev,
struct device_attribute *attr, struct device_attribute *attr,
char *buf) char *buf)
@ -292,18 +289,15 @@ static const struct hwmon_chip_info sg2042_mcu_chip_info = {
.info = sg2042_mcu_info, .info = sg2042_mcu_info,
}; };
static void sg2042_mcu_debugfs_init(struct sg2042_mcu_data *mcu, static void sg2042_mcu_debugfs_init(struct sg2042_mcu_data *mcu)
struct device *dev)
{ {
mcu->debugfs = debugfs_create_dir(dev_name(dev), sgmcu_debugfs); debugfs_create_file("firmware_version", 0444, mcu->client->debugfs,
debugfs_create_file("firmware_version", 0444, mcu->debugfs,
mcu, &firmware_version_fops); mcu, &firmware_version_fops);
debugfs_create_file("pcb_version", 0444, mcu->debugfs, mcu, debugfs_create_file("pcb_version", 0444, mcu->client->debugfs, mcu,
&pcb_version_fops); &pcb_version_fops);
debugfs_create_file("mcu_type", 0444, mcu->debugfs, mcu, debugfs_create_file("mcu_type", 0444, mcu->client->debugfs, mcu,
&mcu_type_fops); &mcu_type_fops);
debugfs_create_file("board_type", 0444, mcu->debugfs, mcu, debugfs_create_file("board_type", 0444, mcu->client->debugfs, mcu,
&board_type_fops); &board_type_fops);
} }
@ -333,18 +327,11 @@ static int sg2042_mcu_i2c_probe(struct i2c_client *client)
if (IS_ERR(hwmon_dev)) if (IS_ERR(hwmon_dev))
return PTR_ERR(hwmon_dev); return PTR_ERR(hwmon_dev);
sg2042_mcu_debugfs_init(mcu, dev); sg2042_mcu_debugfs_init(mcu);
return 0; return 0;
} }
static void sg2042_mcu_i2c_remove(struct i2c_client *client)
{
struct sg2042_mcu_data *mcu = i2c_get_clientdata(client);
debugfs_remove_recursive(mcu->debugfs);
}
static const struct i2c_device_id sg2042_mcu_id[] = { static const struct i2c_device_id sg2042_mcu_id[] = {
{ "sg2042-hwmon-mcu" }, { "sg2042-hwmon-mcu" },
{ } { }
@ -364,25 +351,8 @@ static struct i2c_driver sg2042_mcu_driver = {
.dev_groups = sg2042_mcu_groups, .dev_groups = sg2042_mcu_groups,
}, },
.probe = sg2042_mcu_i2c_probe, .probe = sg2042_mcu_i2c_probe,
.remove = sg2042_mcu_i2c_remove,
.id_table = sg2042_mcu_id, .id_table = sg2042_mcu_id,
}; };
module_i2c_driver(sg2042_mcu_driver);
static int __init sg2042_mcu_init(void)
{
sgmcu_debugfs = debugfs_create_dir("sg2042-mcu", NULL);
return i2c_add_driver(&sg2042_mcu_driver);
}
static void __exit sg2042_mcu_exit(void)
{
debugfs_remove_recursive(sgmcu_debugfs);
i2c_del_driver(&sg2042_mcu_driver);
}
module_init(sg2042_mcu_init);
module_exit(sg2042_mcu_exit);
MODULE_AUTHOR("Inochi Amaoto <inochiama@outlook.com>");
MODULE_DESCRIPTION("MCU I2C driver for SG2042 soc platform");
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");