Commit fe0eba17 authored by Saravanan Sekar's avatar Saravanan Sekar Committed by Guenter Roeck
Browse files

hwmon: (pmbus/mpq7932) Add a support for mpq2286 Power Management IC 



The MPQ2286 is a programmable, high frequency synchronous buck regulator
designed to power a variety of Automotive system peripherals. Single buck
converters with hardware monitoring capability is configurable over PMBus
interface.

Signed-off-by: default avatarSaravanan Sekar <saravanan@linumiz.com>
Link: https://lore.kernel.org/r/20231011164754.449399-5-saravanan@linumiz.com


[groeck: Updated subject (mpq2286 -> mpq7932)]
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 88b5970e

drivers/hwmon/pmbus/mpq7932.c

+12 −1
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
#define MPQ7932_N_VOLTAGES		256

#define MPQ7932_VOUT_MAX		0xFF

#define MPQ7932_NUM_PAGES		6

#define MPQ2286_NUM_PAGES		1



#define MPQ7932_TON_DELAY		0x60

#define MPQ7932_VOUT_STARTUP_SLEW	0xA3
@@ -48,6 +49,11 @@ static struct regulator_desc mpq7932_regulators_desc[] = { 
	PMBUS_REGULATOR_STEP("buck", 5, MPQ7932_N_VOLTAGES,

			     MPQ7932_UV_STEP, MPQ7932_BUCK_UV_MIN),

};



static const struct regulator_desc mpq7932_regulators_desc_one[] = {

	PMBUS_REGULATOR_STEP_ONE("buck", MPQ7932_N_VOLTAGES,

				 MPQ7932_UV_STEP, MPQ7932_BUCK_UV_MIN),

};

#endif



static int mpq7932_write_word_data(struct i2c_client *client, int page, int reg,
@@ -116,6 +122,9 @@ static int mpq7932_probe(struct i2c_client *client) 


#if IS_ENABLED(CONFIG_SENSORS_MPQ7932_REGULATOR)

	info->num_regulators = info->pages;

	if (info->num_regulators == 1)

		info->reg_desc = mpq7932_regulators_desc_one;

	else

		info->reg_desc = mpq7932_regulators_desc;

#endif
@@ -129,12 +138,14 @@ static int mpq7932_probe(struct i2c_client *client) 
}



static const struct of_device_id mpq7932_of_match[] = {

	{ .compatible = "mps,mpq2286", .data = (void *)MPQ2286_NUM_PAGES },

	{ .compatible = "mps,mpq7932", .data = (void *)MPQ7932_NUM_PAGES },

	{},

};

MODULE_DEVICE_TABLE(of, mpq7932_of_match);



static const struct i2c_device_id mpq7932_id[] = {

	{ "mpq2286", },

	{ "mpq7932", },

	{ },

};