Commit 1bc6020d authored by Pawel Dembicki's avatar Pawel Dembicki Committed by Guenter Roeck
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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: default avatarPawel Dembicki <paweldembicki@gmail.com>
Link: https://lore.kernel.org/r/20250511035701.2607947-3-paweldembicki@gmail.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent e00fe400

drivers/hwmon/pmbus/mpq8785.c

+30 −8
Original line number Diff line number Diff line
@@ -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",