Commit ba1d263a authored by Marcello Sylvester Bauer's avatar Marcello Sylvester Bauer Committed by Guenter Roeck
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hwmon: (pmbus/pli1209bc) Add regulator support 



Add regulator support for PLI1209BC Digital Supervisor.

Signed-off-by: default avatarMarcello Sylvester Bauer <sylv@sylv.io>
Link: https://lore.kernel.org/r/21b0cdb6dd72654effa451d3b1636ecd07b160e9.1645435888.git.sylv@sylv.io


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent d0cd9785

drivers/hwmon/pmbus/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -326,6 +326,13 @@ config SENSORS_PLI1209BC 
	  This driver can also be built as a module. If so, the module will

	  be called pli1209bc.



config SENSORS_PLI1209BC_REGULATOR

	bool "Regulator support for PLI1209BC"

	depends on SENSORS_PLI1209BC && REGULATOR

	help

	  If you say yes here you get regulator support for Vicor PLI1209BC

	  Digital Supervisor.



config SENSORS_PM6764TR

	tristate "ST PM6764TR"

	help

drivers/hwmon/pmbus/pli1209bc.c

+31 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <linux/i2c.h>

#include <linux/module.h>

#include <linux/pmbus.h>

#include <linux/regulator/driver.h>

#include "pmbus.h"



/*
@@ -33,11 +34,37 @@ static int pli1209bc_read_word_data(struct i2c_client *client, int page, 
			return data;

		data = sign_extend32(data, 15) * 10;

		return clamp_val(data, -32768, 32767) & 0xffff;

	/*

	 * PMBUS_READ_VOUT and PMBUS_READ_TEMPERATURE_1 return invalid data

	 * when the BCM is turned off. Since it is not possible to return

	 * ENODATA error, return zero instead.

	 */

	case PMBUS_READ_VOUT:

	case PMBUS_READ_TEMPERATURE_1:

		data = pmbus_read_word_data(client, page, phase,

					    PMBUS_STATUS_WORD);

		if (data < 0)

			return data;

		if (data & PB_STATUS_POWER_GOOD_N)

			return 0;

		return pmbus_read_word_data(client, page, phase, reg);

	default:

		return -ENODATA;

	}

}



#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR)

static const struct regulator_desc pli1209bc_reg_desc = {

	.name = "vout2",

	.id = 1,

	.of_match = of_match_ptr("vout2"),

	.regulators_node = of_match_ptr("regulators"),

	.ops = &pmbus_regulator_ops,

	.type = REGULATOR_VOLTAGE,

	.owner = THIS_MODULE,

};

#endif



static struct pmbus_driver_info pli1209bc_info = {

	.pages = 2,

	.format[PSC_VOLTAGE_IN] = direct,
@@ -75,6 +102,10 @@ static struct pmbus_driver_info pli1209bc_info = { 
	    | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP

	    | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT,

	.read_word_data = pli1209bc_read_word_data,

#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR)

	.num_regulators = 1,

	.reg_desc = &pli1209bc_reg_desc,

#endif

};



static int pli1209bc_probe(struct i2c_client *client)