diff options
| author | Pawel Dembicki <paweldembicki@gmail.com> | 2025-05-11 06:55:45 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2025-05-12 19:42:39 +0300 |
| commit | 1bc6020dc400ea8290a7b26aa4365d4568e23e27 (patch) | |
| tree | 6401d90654d390a5cc755d1085ecf6914b50e0a6 | |
| parent | e00fe40065b874f5622949d5a6734a632b3fd76a (diff) | |
| download | linux-1bc6020dc400ea8290a7b26aa4365d4568e23e27.tar.xz | |
hwmon: pmbus: mpq8785: Prepare driver for multiple device support
Refactor the driver to support multiple Monolithic Power Systems devices.
Introduce chip ID handling based on device tree matching.
No functional changes intended.
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Link: https://lore.kernel.org/r/20250511035701.2607947-3-paweldembicki@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| -rw-r--r-- | drivers/hwmon/pmbus/mpq8785.c | 38 |
1 files changed, 30 insertions, 8 deletions
diff --git a/drivers/hwmon/pmbus/mpq8785.c b/drivers/hwmon/pmbus/mpq8785.c index 331c274ca892..d0ac294b4bbc 100644 --- a/drivers/hwmon/pmbus/mpq8785.c +++ b/drivers/hwmon/pmbus/mpq8785.c @@ -8,6 +8,8 @@ #include <linux/of_device.h> #include "pmbus.h" +enum chips { mpq8785 }; + static int mpq8785_identify(struct i2c_client *client, struct pmbus_driver_info *info) { @@ -53,26 +55,46 @@ static struct pmbus_driver_info mpq8785_info = { PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, - .identify = mpq8785_identify, -}; - -static int mpq8785_probe(struct i2c_client *client) -{ - return pmbus_do_probe(client, &mpq8785_info); }; static const struct i2c_device_id mpq8785_id[] = { - { "mpq8785" }, + { "mpq8785", mpq8785 }, { }, }; MODULE_DEVICE_TABLE(i2c, mpq8785_id); static const struct of_device_id __maybe_unused mpq8785_of_match[] = { - { .compatible = "mps,mpq8785" }, + { .compatible = "mps,mpq8785", .data = (void *)mpq8785 }, {} }; MODULE_DEVICE_TABLE(of, mpq8785_of_match); +static int mpq8785_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct pmbus_driver_info *info; + enum chips chip_id; + + info = devm_kmemdup(dev, &mpq8785_info, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + if (dev->of_node) + chip_id = (kernel_ulong_t)of_device_get_match_data(dev); + else + chip_id = (kernel_ulong_t)i2c_get_match_data(client); + + switch (chip_id) { + case mpq8785: + info->identify = mpq8785_identify; + break; + default: + return -ENODEV; + } + + return pmbus_do_probe(client, info); +}; + static struct i2c_driver mpq8785_driver = { .driver = { .name = "mpq8785", |