hwmon: (pmbus) Add support for Texas Instruments tps53679 device (61052652) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/hwmon/pmbus/Kconfig

+9 −0

Original line number	Diff line number	Diff line
		@@ -144,6 +144,15 @@ config SENSORS_TPS40422
		This driver can also be built as a module. If so, the module will
		be called tps40422.

		config SENSORS_TPS53679
		tristate "TI TPS53679"
		help
		If you say yes here you get hardware monitoring support for TI
		TPS53679.

		This driver can also be built as a module. If so, the module will
		be called tps53679.

		config SENSORS_UCD9000
		tristate "TI UCD90120, UCD90124, UCD90160, UCD9090, UCD90910"
		default n

drivers/hwmon/pmbus/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,7 @@ obj-$(CONFIG_SENSORS_MAX20751) += max20751.o
		obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
		obj-$(CONFIG_SENSORS_MAX8688) += max8688.o
		obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
		obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
		obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
		obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
		obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o

drivers/hwmon/pmbus/tps53679.c

0 → 100644

+113 −0

Original line number	Diff line number	Diff line
		/*
		* Hardware monitoring driver for Texas Instruments TPS53679
		*
		* Copyright (c) 2017 Mellanox Technologies. All rights reserved.
		* Copyright (c) 2017 Vadim Pasternak <vadimp@mellanox.com>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; either version 2 of the License, or
		* (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*/

		#include <linux/err.h>
		#include <linux/i2c.h>
		#include <linux/init.h>
		#include <linux/kernel.h>
		#include <linux/module.h>
		#include "pmbus.h"

		#define TPS53679_PROT_VR12_5MV 0x01 /* VR12.0 mode, 5-mV DAC */
		#define TPS53679_PROT_VR12_5_10MV 0x02 /* VR12.5 mode, 10-mV DAC */
		#define TPS53679_PROT_VR13_10MV 0x04 /* VR13.0 mode, 10-mV DAC */
		#define TPS53679_PROT_IMVP8_5MV 0x05 /* IMVP8 mode, 5-mV DAC */
		#define TPS53679_PROT_VR13_5MV 0x07 /* VR13.0 mode, 5-mV DAC */
		#define TPS53679_PAGE_NUM 2

		static int tps53679_identify(struct i2c_client *client,
		struct pmbus_driver_info *info)
		{
		u8 vout_params;
		int ret;

		/* Read the register with VOUT scaling value.*/
		ret = pmbus_read_byte_data(client, 0, PMBUS_VOUT_MODE);
		if (ret < 0)
		return ret;

		vout_params = ret & GENMASK(4, 0);

		switch (vout_params) {
		case TPS53679_PROT_VR13_10MV:
		case TPS53679_PROT_VR12_5_10MV:
		info->vrm_version = vr13;
		break;
		case TPS53679_PROT_VR13_5MV:
		case TPS53679_PROT_VR12_5MV:
		case TPS53679_PROT_IMVP8_5MV:
		info->vrm_version = vr12;
		break;
		default:
		return -EINVAL;
		}

		return 0;
		}

		static struct pmbus_driver_info tps53679_info = {
		.pages = TPS53679_PAGE_NUM,
		.format[PSC_VOLTAGE_IN] = linear,
		.format[PSC_VOLTAGE_OUT] = vid,
		.format[PSC_TEMPERATURE] = linear,
		.format[PSC_CURRENT_OUT] = linear,
		.format[PSC_POWER] = linear,
		.func[0] = PMBUS_HAVE_VIN \| PMBUS_HAVE_VOUT \| PMBUS_HAVE_STATUS_VOUT \|
		PMBUS_HAVE_IOUT \| PMBUS_HAVE_STATUS_IOUT \|
		PMBUS_HAVE_TEMP \| PMBUS_HAVE_STATUS_TEMP \|
		PMBUS_HAVE_POUT,
		.func[1] = PMBUS_HAVE_VIN \| PMBUS_HAVE_VOUT \| PMBUS_HAVE_STATUS_VOUT \|
		PMBUS_HAVE_IOUT \| PMBUS_HAVE_STATUS_IOUT \|
		PMBUS_HAVE_TEMP \| PMBUS_HAVE_STATUS_TEMP \|
		PMBUS_HAVE_POUT,
		.identify = tps53679_identify,
		};

		static int tps53679_probe(struct i2c_client *client,
		const struct i2c_device_id *id)
		{
		return pmbus_do_probe(client, id, &tps53679_info);
		}

		static const struct i2c_device_id tps53679_id[] = {
		{"tps53679", 0},
		{}
		};

		MODULE_DEVICE_TABLE(i2c, tps53679_id);

		static const struct of_device_id tps53679_of_match[] = {
		{.compatible = "ti,tps53679"},
		{}
		};
		MODULE_DEVICE_TABLE(of, tps53679_of_match);

		static struct i2c_driver tps53679_driver = {
		.driver = {
		.name = "tps53679",
		.of_match_table = of_match_ptr(tps53679_of_match),
		},
		.probe = tps53679_probe,
		.remove = pmbus_do_remove,
		.id_table = tps53679_id,
		};

		module_i2c_driver(tps53679_driver);

		MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>");
		MODULE_DESCRIPTION("PMBus driver for Texas Instruments TPS53679");
		MODULE_LICENSE("GPL");