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hwmon: (pmbus) Add support for additional Flex BMR converters to pmbus 

Add support for Flex BMR310, BMR456, BMR457, BMR458, BMR480, BMR490,
BMR491 and BMR492 to the pmbus driver

Signed-off-by: Erik Rosen <erik.rosen@metormote.com>
Link: https://lore.kernel.org/r/20210507194023.61138-4-erik.rosen@metormote.com
[groeck: Fixed minor whitespace error]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Erik Rosen 2021-05-07 21:40:23 +02:00 committed by Guenter Roeck
parent b976760dc4
commit ea541c185c
3 changed files with 28 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
Documentation/hwmon/pmbus.rst
View File

@ -3,15 +3,18 @@ Kernel driver pmbus
Supported chips:
* Ericsson BMR453, BMR454
* Flex BMR310, BMR453, BMR454, BMR456, BMR457, BMR458, BMR480,
BMR490, BMR491, BMR492
Prefixes: 'bmr453', 'bmr454'
Prefixes: 'bmr310', 'bmr453', 'bmr454', 'bmr456', 'bmr457', 'bmr458', 'bmr480',
'bmr490', 'bmr491', 'bmr492'
Addresses scanned: -
Datasheet:
Datasheets:
https://flexpowermodules.com/products
http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146395
* ON Semiconductor ADP4000, NCP4200, NCP4208

7
drivers/hwmon/pmbus/Kconfig
View File

@ -19,9 +19,10 @@ config SENSORS_PMBUS
default y
help
If you say yes here you get hardware monitoring support for generic
PMBus devices, including but not limited to ADP4000, BMR453, BMR454,
MAX20796, MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, TPS40400,
TPS544B20, TPS544B25, TPS544C20, TPS544C25, and UDT020.
PMBus devices, including but not limited to ADP4000, BMR310, BMR453,
BMR454, BMR456, BMR457, BMR458, BMR480, BMR490, BMR491, BMR492,
MAX20796, MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012,
TPS40400, TPS544B20, TPS544B25, TPS544C20, TPS544C25, and UDT020.
This driver can also be built as a module. If so, the module will
be called pmbus.

19
drivers/hwmon/pmbus/pmbus.c
View File

@ -173,13 +173,13 @@ static int pmbus_probe(struct i2c_client *client)
return -ENOMEM;
device_info = (struct pmbus_device_info *)i2c_match_id(pmbus_id, client)->driver_data;
if (device_info->flags & PMBUS_SKIP_STATUS_CHECK) {
if (device_info->flags) {
pdata = devm_kzalloc(dev, sizeof(struct pmbus_platform_data),
GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pdata->flags = PMBUS_SKIP_STATUS_CHECK;
pdata->flags = device_info->flags;
}
info->pages = device_info->pages;
@ -193,22 +193,37 @@ static const struct pmbus_device_info pmbus_info_one = {
.pages = 1,
.flags = 0
};
static const struct pmbus_device_info pmbus_info_zero = {
.pages = 0,
.flags = 0
};
static const struct pmbus_device_info pmbus_info_one_skip = {
.pages = 1,
.flags = PMBUS_SKIP_STATUS_CHECK
};
static const struct pmbus_device_info pmbus_info_one_status = {
.pages = 1,
.flags = PMBUS_READ_STATUS_AFTER_FAILED_CHECK
};
/*
* Use driver_data to set the number of pages supported by the chip.
*/
static const struct i2c_device_id pmbus_id[] = {
{"adp4000", (kernel_ulong_t)&pmbus_info_one},
{"bmr310", (kernel_ulong_t)&pmbus_info_one_status},
{"bmr453", (kernel_ulong_t)&pmbus_info_one},
{"bmr454", (kernel_ulong_t)&pmbus_info_one},
{"bmr456", (kernel_ulong_t)&pmbus_info_one},
{"bmr457", (kernel_ulong_t)&pmbus_info_one},
{"bmr458", (kernel_ulong_t)&pmbus_info_one_status},
{"bmr480", (kernel_ulong_t)&pmbus_info_one_status},
{"bmr490", (kernel_ulong_t)&pmbus_info_one_status},
{"bmr491", (kernel_ulong_t)&pmbus_info_one_status},
{"bmr492", (kernel_ulong_t)&pmbus_info_one},
{"dps460", (kernel_ulong_t)&pmbus_info_one_skip},
{"dps650ab", (kernel_ulong_t)&pmbus_info_one_skip},
{"dps800", (kernel_ulong_t)&pmbus_info_one_skip},