kernel/linux.git/drivers/hwmon/ibmpowernv.c, branch linux-4.4.y

hwmon: (ibmpowernv) Remove bogus __init annotations

2018-11-27T15:08:01+00:00

[ Upstream commit e3e61f01d755188cb6c2dcf5a244b9c0937c258e ] If gcc decides not to inline make_sensor_label(): WARNING: vmlinux.o(.text+0x4df549c): Section mismatch in reference from the function .create_device_attrs() to the function .init.text:.make_sensor_label() The function .create_device_attrs() references the function __init .make_sensor_label(). This is often because .create_device_attrs lacks a __init annotation or the annotation of .make_sensor_label is wrong. As .probe() can be called after freeing of __init memory, all __init annotiations in the driver are bogus, and should be removed. Signed-off-by: Geert Uytterhoeven Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin

hwmon: (ibmpowernv) Add OF compatibility table entry

2015-10-14T14:57:14+00:00

Fix module autoload for IBM and Open power platforms. Signed-off-by: Cédric Le Goater Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) Fix build error seen for some configurations

2015-04-09T04:03:39+00:00

Fix drivers/hwmon/ibmpowernv.c: In function 'get_logical_cpu': drivers/hwmon/ibmpowernv.c:121:3: error: implicit declaration of function 'get_hard_smp_processor_id' seen for some configurations, possibly if SMP is not configured. Fixes: 3df2f59f0aae ("hwmon: (ibmpowernv) pretty print labels") Cc: Cédric Le Goater Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) pretty print labels

2015-04-08T17:34:20+00:00

The new OPAL device tree adds a few properties which can be used to add extra information on the sensor label. In the case of a cpu core sensor, the firmware exposes the physical identifier of the core in the "ibm,pir" property. The driver translates this identifier in a linux cpu number and prints out a range corresponding to the hardware threads of the core (as they share the same sensor). The numbering gives a hint on the localization of the core in the system (which socket, which chip). Signed-off-by: Cédric Le Goater Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) add a label attribute

2015-04-08T17:34:20+00:00

Currently, sensors are only identified by their type and index. The new OPAL device tree can expose extra properties to identify some sensors by their name or location. This patch adds the creation of a new hwmon *_label attribute when such properties are detected. Signed-off-by: Cédric Le Goater Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) add support for the new device tree

2015-04-08T17:34:20+00:00

The new OPAL device tree for sensors has a different layout and uses new property names, for the type and for the handler used to capture the sensor data. This patch modifies the ibmpowernv driver to support such a tree in a way preserving compatibility with older OPAL firmwares. This is achieved by changing the error path of the routine parsing an OPAL node name. The node is simply considered being from the new device tree layout and fallback values are used. Signed-off-by: Cédric Le Goater Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) add a helper routine create_hwmon_attr

2015-04-08T17:34:19+00:00

This should shorten a bit the code necessary to create a hmwon attribute. Signed-off-by: Cédric Le Goater Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) do not use the OPAL index for hwmon attribute names

2015-03-20T15:25:14+00:00

The current OPAL firmware exposes the different sensors of an IBM Power system using node names such as : sensors/amb-temp#1-data sensors/amb-temp#1-thrs cooling-fan#1-data cooling-fan#1-faulted cooling-fan#1-thrs cooling-fan#2-data ... The ibmpowernv driver, when loaded, parses these names to extract the sensor index and the sensor attribute name. Unfortunately, this scheme makes it difficult to add sensors with a different layout (specially of the same type, like temperature) as the sensor index calculated in OPAL is directly used in the hwmon sysfs interface. What this patch does is add a independent hwmon index for each sensor. The increment of the hwmon index (temp, fan, power, etc.) is kept per sensor type in the sensor_group table. The sensor_data table is used to store the association of the hwmon and OPAL indexes, as we need to have the same hwmon index for different attributes of a same sensor. Signed-off-by: Cédric Le Goater Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) change create_hwmon_attr_name() prototype

2015-03-20T15:25:12+00:00

It simplifies the creation of the hwmon attributes and will help when support for a new device tree layout is added. The patch also changes the name of the routine to parse_opal_node_name(). Signed-off-by: Cédric Le Goater Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) add a convert_opal_attr_name() routine

2015-03-20T15:25:11+00:00

It simplifies the create_hwmon_attr_name() routine and it clearly isolates the conversion done between the OPAL node names and hwmon attributes names. Signed-off-by: Cédric Le Goater Signed-off-by: Guenter Roeck