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>

diff --git a/Documentation/hwmon/pmbus.rst b/Documentation/hwmon/pmbus.rst
index c44f141..7ecfec6 100644 (file)
--- a/Documentation/hwmon/pmbus.rst
+++ b/Documentation/hwmon/pmbus.rst
@@ -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
 

diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 37a5c39..6275dcf 100644 (file)
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -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.

diff --git a/drivers/hwmon/pmbus/pmbus.c b/drivers/hwmon/pmbus/pmbus.c
index 618c377..d0d3869 100644 (file)
--- a/drivers/hwmon/pmbus/pmbus.c
+++ b/drivers/hwmon/pmbus/pmbus.c
@@ -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},