hwmon: (max34440) Add driver documentation

MAX34440 and MAX34441 have their own driver, thus there should be explicit
documentation instead of mentioning the chips in the generic PMBus driver
documentation.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>

diff --git a/Documentation/hwmon/max34440 b/Documentation/hwmon/max34440
new file mode 100644 (file)
index 0000000..6c525dd
--- /dev/null
+++ b/Documentation/hwmon/max34440
@@ -0,0 +1,79 @@
+Kernel driver max34440
+======================
+
+Supported chips:
+  * Maxim MAX34440
+    Prefixes: 'max34440'
+    Addresses scanned: -
+    Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34440.pdf
+  * Maxim MAX34441
+    PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
+    Prefixes: 'max34441'
+    Addresses scanned: -
+    Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34441.pdf
+
+Author: Guenter Roeck <guenter.roeck@ericsson.com>
+
+
+Description
+-----------
+
+This driver supports hardware montoring for Maxim MAX34440 PMBus 6-Channel
+Power-Supply Manager and MAX34441 PMBus 5-Channel Power-Supply Manager
+and Intelligent Fan Controller.
+
+The driver is a client driver to the core PMBus driver. Please see
+Documentation/hwmon/pmbus for details on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported. Limits are read-write; all other
+attributes are read-only.
+
+in[1-6]_label          "vout[1-6]".
+in[1-6]_input          Measured voltage. From READ_VOUT register.
+in[1-6]_min            Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
+in[1-6]_max            Maximum voltage. From VOUT_OV_WARN_LIMIT register.
+in[1-6]_lcrit          Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
+in[1-6]_crit           Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
+in[1-6]_min_alarm      Voltage low alarm. From VOLTAGE_UV_WARNING status.
+in[1-6]_max_alarm      Voltage high alarm. From VOLTAGE_OV_WARNING status.
+in[1-6]_lcrit_alarm    Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
+in[1-6]_crit_alarm     Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+
+curr[1-6]_label                "iout[1-6]".
+curr[1-6]_input                Measured current. From READ_IOUT register.
+curr[1-6]_max          Maximum current. From IOUT_OC_WARN_LIMIT register.
+curr[1-6]_crit         Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
+curr[1-6]_max_alarm    Current high alarm. From IOUT_OC_WARNING status.
+curr[1-6]_crit_alarm   Current critical high alarm. From IOUT_OC_FAULT status.
+
+                       in6 and curr6 attributes only exist for MAX34440.
+
+temp[1-8]_input                Measured temperatures. From READ_TEMPERATURE_1 register.
+                       temp1 is the chip's internal temperature. temp2..temp5
+                       are remote I2C temperature sensors. For MAX34441, temp6
+                       is a remote thermal-diode sensor. For MAX34440, temp6..8
+                       are remote I2C temperature sensors.
+temp[1-8]_max          Maximum temperature. From OT_WARN_LIMIT register.
+temp[1-8]_crit         Critical high temperature. From OT_FAULT_LIMIT register.
+temp[1-8]_max_alarm    Temperature high alarm.
+temp[1-8]_crit_alarm   Temperature critical high alarm.
+
+                       temp7 and temp8 attributes only exist for MAX34440.

diff --git a/Documentation/hwmon/pmbus b/Documentation/hwmon/pmbus
index e3c527a..5e462fc 100644 (file)
--- a/Documentation/hwmon/pmbus
+++ b/Documentation/hwmon/pmbus
@@ -13,16 +13,6 @@ Supported chips:
     Prefix: 'ltc2978'
     Addresses scanned: -
     Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf
-  * Maxim MAX34440
-    PMBus 6-Channel Power-Supply Manager
-    Prefixes: 'max34440'
-    Addresses scanned: -
-    Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34440.pdf
-  * Maxim MAX34441
-    PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
-    Prefixes: 'max34441'
-    Addresses scanned: -
-    Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34441.pdf
   * Generic PMBus devices
     Prefix: 'pmbus'
     Addresses scanned: -