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hwmon: (pmbus/max20730) Add max20710 support 

Add support for max20710 into the existing max20730 driver.

Signed-off-by: Ugur Usug <ugur.usug@maximintegrated.com>
Link: https://lore.kernel.org/r/BYAPR11MB317423C13909AE6F1913BBD7FD9C0@BYAPR11MB3174.namprd11.prod.outlook.com
[groeck: Fixed various whitespace errors]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Ugur Usug 2020-06-15 23:49:14 +00:00 committed by Guenter Roeck
parent a4872f7a4b
commit 5c9353f5f8
3 changed files with 54 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
Documentation/hwmon/max20730.rst
View File

@ -5,6 +5,14 @@ Kernel driver max20730
Supported chips:
* Maxim MAX20710
Prefix: 'max20710'
Addresses scanned: -
Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20710.pdf
* Maxim MAX20730
Prefix: 'max20730'
@ -35,7 +43,7 @@ Author: Guenter Roeck <linux@roeck-us.net>
Description
-----------
This driver implements support for Maxim MAX20730, MAX20734, and MAX20743
This driver implements support for Maxim MAX20710, MAX20730, MAX20734, and MAX20743
Integrated, Step-Down Switching Regulators with PMBus support.
The driver is a client driver to the core PMBus driver.

4
drivers/hwmon/pmbus/Kconfig
View File

@ -156,10 +156,10 @@ config SENSORS_MAX16601
be called max16601.
config SENSORS_MAX20730
tristate "Maxim MAX20730, MAX20734, MAX20743"
tristate "Maxim MAX20710, MAX20730, MAX20734, MAX20743"
help
If you say yes here you get hardware monitoring support for Maxim
MAX20730, MAX20734, and MAX20743.
MAX20710, MAX20730, MAX20734, and MAX20743.
This driver can also be built as a module. If so, the module will
be called max20730.

49
drivers/hwmon/pmbus/max20730.c
View File

@ -1,9 +1,10 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for MAX20730, MAX20734, and MAX20743 Integrated, Step-Down
* Switching Regulators
* Driver for MAX20710, MAX20730, MAX20734, and MAX20743 Integrated,
* Step-Down Switching Regulators
*
* Copyright 2019 Google LLC.
* Copyright 2020 Maxim Integrated
*/
#include <linux/bits.h>
@ -19,6 +20,7 @@
#include "pmbus.h"
enum chips {
max20710,
max20730,
max20734,
max20743
@ -80,6 +82,7 @@ static long direct_to_val(u16 w, enum pmbus_sensor_classes class,
}
static u32 max_current[][5] = {
[max20710] = { 6200, 8000, 9700, 11600 },
[max20730] = { 13000, 16600, 20100, 23600 },
[max20734] = { 21000, 27000, 32000, 38000 },
[max20743] = { 18900, 24100, 29200, 34100 },
@ -164,6 +167,35 @@ static int max20730_write_word_data(struct i2c_client *client, int page,
}
static const struct pmbus_driver_info max20730_info[] = {
[max20710] = {
.pages = 1,
.read_word_data = max20730_read_word_data,
.write_word_data = max20730_write_word_data,
/* Source : Maxim AN6140 and AN6042 */
.format[PSC_TEMPERATURE] = direct,
.m[PSC_TEMPERATURE] = 21,
.b[PSC_TEMPERATURE] = 5887,
.R[PSC_TEMPERATURE] = -1,
.format[PSC_VOLTAGE_IN] = direct,
.m[PSC_VOLTAGE_IN] = 3609,
.b[PSC_VOLTAGE_IN] = 0,
.R[PSC_VOLTAGE_IN] = -2,
.format[PSC_CURRENT_OUT] = direct,
.m[PSC_CURRENT_OUT] = 153,
.b[PSC_CURRENT_OUT] = 4976,
.R[PSC_CURRENT_OUT] = -1,
.format[PSC_VOLTAGE_OUT] = 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_STATUS_INPUT,
},
[max20730] = {
.pages = 1,
.read_word_data = max20730_read_word_data,
@ -200,7 +232,8 @@ static const struct pmbus_driver_info max20730_info[] = {
.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_TEMP | PMBUS_HAVE_STATUS_TEMP |
PMBUS_HAVE_STATUS_INPUT,
},
[max20734] = {
.pages = 1,
@ -228,7 +261,8 @@ static const struct pmbus_driver_info max20730_info[] = {
.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_TEMP | PMBUS_HAVE_STATUS_TEMP |
PMBUS_HAVE_STATUS_INPUT,
},
[max20743] = {
.pages = 1,
@ -256,7 +290,8 @@ static const struct pmbus_driver_info max20730_info[] = {
.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_TEMP | PMBUS_HAVE_STATUS_TEMP |
PMBUS_HAVE_STATUS_INPUT,
},
};
@ -339,6 +374,7 @@ static int max20730_probe(struct i2c_client *client,
}
static const struct i2c_device_id max20730_id[] = {
{ "max20710", max20710 },
{ "max20730", max20730 },
{ "max20734", max20734 },
{ "max20743", max20743 },
@ -348,6 +384,7 @@ static const struct i2c_device_id max20730_id[] = {
MODULE_DEVICE_TABLE(i2c, max20730_id);
static const struct of_device_id max20730_of_match[] = {
{ .compatible = "maxim,max20710", .data = (void *)max20710 },
{ .compatible = "maxim,max20730", .data = (void *)max20730 },
{ .compatible = "maxim,max20734", .data = (void *)max20734 },
{ .compatible = "maxim,max20743", .data = (void *)max20743 },
@ -369,5 +406,5 @@ static struct i2c_driver max20730_driver = {
module_i2c_driver(max20730_driver);
MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
MODULE_DESCRIPTION("PMBus driver for Maxim MAX20730 / MAX20734 / MAX20743");
MODULE_DESCRIPTION("PMBus driver for Maxim MAX20710 / MAX20730 / MAX20734 / MAX20743");
MODULE_LICENSE("GPL");