Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 9697277e authored by Javier Martinez Canillas's avatar Javier Martinez Canillas Committed by Sebastian Reichel
Browse files

power: supply: ltc2941-battery-gauge: Add OF device ID table 



The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: default avatarJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: default avatarSebastian Reichel <sre@kernel.org>
parent c67c372c

drivers/power/supply/ltc2941-battery-gauge.c

+17 −2
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 
 */

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/types.h>

#include <linux/errno.h>

#include <linux/swab.h>
@@ -61,7 +62,7 @@ struct ltc294x_info { 
	struct power_supply *supply;	/* Supply pointer */

	struct power_supply_desc supply_desc;	/* Supply description */

	struct delayed_work work;	/* Work scheduler */

	int num_regs;	/* Number of registers (chip type) */

	unsigned long num_regs;	/* Number of registers (chip type) */

	int charge;	/* Last charge register content */

	int r_sense;	/* mOhm */

	int Qlsb;	/* nAh */
@@ -387,7 +388,7 @@ static int ltc294x_i2c_probe(struct i2c_client *client, 


	np = of_node_get(client->dev.of_node);



	info->num_regs = id->driver_data;

	info->num_regs = (unsigned long)of_device_get_match_data(&client->dev);

	info->supply_desc.name = np->name;



	/* r_sense can be negative, when sense+ is connected to the battery
@@ -497,9 +498,23 @@ static const struct i2c_device_id ltc294x_i2c_id[] = { 
};

MODULE_DEVICE_TABLE(i2c, ltc294x_i2c_id);



static const struct of_device_id ltc294x_i2c_of_match[] = {

	{

		.compatible = "lltc,ltc2941",

		.data = (void *)LTC2941_NUM_REGS

	},

	{

		.compatible = "lltc,ltc2943",

		.data = (void *)LTC2943_NUM_REGS

	},

	{ },

};

MODULE_DEVICE_TABLE(of, ltc294x_i2c_of_match);



static struct i2c_driver ltc294x_driver = {

	.driver = {

		.name	= "LTC2941",

		.of_match_table = ltc294x_i2c_of_match,

		.pm	= LTC294X_PM_OPS,

	},

	.probe		= ltc294x_i2c_probe,