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

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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: Saravanan Sekar <saravanan@linumiz.com>
Link: https://lore.kernel.org/r/20231011164754.449399-5-saravanan@linumiz.com
[groeck: Updated subject (mpq2286 -> mpq7932)]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Saravanan Sekar 2023-10-11 22:17:54 +05:30 committed by Guenter Roeck
parent 88b5970e92
commit fe0eba175e
1 changed files with 12 additions and 1 deletions
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13
drivers/hwmon/pmbus/mpq7932.c
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@ -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,
@ -116,7 +122,10 @@ static int mpq7932_probe(struct i2c_client *client)
#if IS_ENABLED(CONFIG_SENSORS_MPQ7932_REGULATOR)
info->num_regulators = info->pages;
info->reg_desc = mpq7932_regulators_desc;
if (info->num_regulators == 1)
info->reg_desc = mpq7932_regulators_desc_one;
else
info->reg_desc = mpq7932_regulators_desc;
#endif
info->read_word_data = mpq7932_read_word_data;
@ -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", },
{ },
};