linux/drivers/hwmon/ibmpowernv.c

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hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
/*
* IBM PowerNV platform sensors for temperature/fan/voltage/power
* Copyright (C) 2014 IBM
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.
*/
#define DRVNAME "ibmpowernv"
#define pr_fmt(fmt) DRVNAME ": " fmt
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <asm/opal.h>
#include <linux/err.h>
#include <asm/cputhreads.h>
#include <asm/smp.h>
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
#define MAX_ATTR_LEN 32
#define MAX_LABEL_LEN 64
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
/* Sensor suffix name from DT */
#define DT_FAULT_ATTR_SUFFIX "faulted"
#define DT_DATA_ATTR_SUFFIX "data"
#define DT_THRESHOLD_ATTR_SUFFIX "thrs"
/*
* Enumerates all the types of sensors in the POWERNV platform and does index
* into 'struct sensor_group'
*/
enum sensors {
FAN,
TEMP,
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
POWER_SUPPLY,
POWER_INPUT,
MAX_SENSOR_TYPE,
};
#define INVALID_INDEX (-1U)
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
static struct sensor_group {
const char *name;
const char *compatible;
struct attribute_group group;
u32 attr_count;
u32 hwmon_index;
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
} sensor_groups[] = {
{"fan", "ibm,opal-sensor-cooling-fan"},
{"temp", "ibm,opal-sensor-amb-temp"},
{"in", "ibm,opal-sensor-power-supply"},
{"power", "ibm,opal-sensor-power"}
};
struct sensor_data {
u32 id; /* An opaque id of the firmware for each sensor */
u32 hwmon_index;
u32 opal_index;
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
enum sensors type;
char label[MAX_LABEL_LEN];
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
char name[MAX_ATTR_LEN];
struct device_attribute dev_attr;
};
struct platform_data {
const struct attribute_group *attr_groups[MAX_SENSOR_TYPE + 1];
u32 sensors_count; /* Total count of sensors from each group */
};
static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct sensor_data *sdata = container_of(devattr, struct sensor_data,
dev_attr);
ssize_t ret;
u32 x;
ret = opal_get_sensor_data(sdata->id, &x);
if (ret)
return ret;
/* Convert temperature to milli-degrees */
if (sdata->type == TEMP)
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
x *= 1000;
/* Convert power to micro-watts */
else if (sdata->type == POWER_INPUT)
x *= 1000000;
return sprintf(buf, "%u\n", x);
}
static ssize_t show_label(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct sensor_data *sdata = container_of(devattr, struct sensor_data,
dev_attr);
return sprintf(buf, "%s\n", sdata->label);
}
static int __init get_logical_cpu(int hwcpu)
{
int cpu;
for_each_possible_cpu(cpu)
if (get_hard_smp_processor_id(cpu) == hwcpu)
return cpu;
return -ENOENT;
}
static void __init make_sensor_label(struct device_node *np,
struct sensor_data *sdata,
const char *label)
{
u32 id;
size_t n;
n = snprintf(sdata->label, sizeof(sdata->label), "%s", label);
/*
* Core temp pretty print
*/
if (!of_property_read_u32(np, "ibm,pir", &id)) {
int cpuid = get_logical_cpu(id);
if (cpuid >= 0)
/*
* The digital thermal sensors are associated
* with a core.
*/
n += snprintf(sdata->label + n,
sizeof(sdata->label) - n, " %d",
cpuid);
else
n += snprintf(sdata->label + n,
sizeof(sdata->label) - n, " phy%d", id);
}
/*
* Membuffer pretty print
*/
if (!of_property_read_u32(np, "ibm,chip-id", &id))
n += snprintf(sdata->label + n, sizeof(sdata->label) - n,
" %d", id & 0xffff);
}
static int get_sensor_index_attr(const char *name, u32 *index, char *attr)
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
{
char *hash_pos = strchr(name, '#');
char buf[8] = { 0 };
char *dash_pos;
u32 copy_len;
int err;
if (!hash_pos)
return -EINVAL;
dash_pos = strchr(hash_pos, '-');
if (!dash_pos)
return -EINVAL;
copy_len = dash_pos - hash_pos - 1;
if (copy_len >= sizeof(buf))
return -EINVAL;
strncpy(buf, hash_pos + 1, copy_len);
err = kstrtou32(buf, 10, index);
if (err)
return err;
strncpy(attr, dash_pos + 1, MAX_ATTR_LEN);
return 0;
}
static const char *convert_opal_attr_name(enum sensors type,
const char *opal_attr)
{
const char *attr_name = NULL;
if (!strcmp(opal_attr, DT_FAULT_ATTR_SUFFIX)) {
attr_name = "fault";
} else if (!strcmp(opal_attr, DT_DATA_ATTR_SUFFIX)) {
attr_name = "input";
} else if (!strcmp(opal_attr, DT_THRESHOLD_ATTR_SUFFIX)) {
if (type == TEMP)
attr_name = "max";
else if (type == FAN)
attr_name = "min";
}
return attr_name;
}
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
/*
* This function translates the DT node name into the 'hwmon' attribute name.
* IBMPOWERNV device node appear like cooling-fan#2-data, amb-temp#1-thrs etc.
* which need to be mapped as fan2_input, temp1_max respectively before
* populating them inside hwmon device class.
*/
static const char *parse_opal_node_name(const char *node_name,
enum sensors type, u32 *index)
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
{
char attr_suffix[MAX_ATTR_LEN];
const char *attr_name;
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
int err;
err = get_sensor_index_attr(node_name, index, attr_suffix);
if (err)
return ERR_PTR(err);
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
attr_name = convert_opal_attr_name(type, attr_suffix);
if (!attr_name)
return ERR_PTR(-ENOENT);
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
return attr_name;
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
}
static int get_sensor_type(struct device_node *np)
{
enum sensors type;
const char *str;
for (type = 0; type < MAX_SENSOR_TYPE; type++) {
if (of_device_is_compatible(np, sensor_groups[type].compatible))
return type;
}
/*
* Let's check if we have a newer device tree
*/
if (!of_device_is_compatible(np, "ibm,opal-sensor"))
return MAX_SENSOR_TYPE;
if (of_property_read_string(np, "sensor-type", &str))
return MAX_SENSOR_TYPE;
for (type = 0; type < MAX_SENSOR_TYPE; type++)
if (!strcmp(str, sensor_groups[type].name))
return type;
return MAX_SENSOR_TYPE;
}
static u32 get_sensor_hwmon_index(struct sensor_data *sdata,
struct sensor_data *sdata_table, int count)
{
int i;
/*
* We don't use the OPAL index on newer device trees
*/
if (sdata->opal_index != INVALID_INDEX) {
for (i = 0; i < count; i++)
if (sdata_table[i].opal_index == sdata->opal_index &&
sdata_table[i].type == sdata->type)
return sdata_table[i].hwmon_index;
}
return ++sensor_groups[sdata->type].hwmon_index;
}
static int populate_attr_groups(struct platform_device *pdev)
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
{
struct platform_data *pdata = platform_get_drvdata(pdev);
const struct attribute_group **pgroups = pdata->attr_groups;
struct device_node *opal, *np;
enum sensors type;
opal = of_find_node_by_path("/ibm,opal/sensors");
for_each_child_of_node(opal, np) {
const char *label;
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
if (np->name == NULL)
continue;
type = get_sensor_type(np);
if (type == MAX_SENSOR_TYPE)
continue;
sensor_groups[type].attr_count++;
/*
* add a new attribute for labels
*/
if (!of_property_read_string(np, "label", &label))
sensor_groups[type].attr_count++;
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
}
of_node_put(opal);
for (type = 0; type < MAX_SENSOR_TYPE; type++) {
sensor_groups[type].group.attrs = devm_kzalloc(&pdev->dev,
sizeof(struct attribute *) *
(sensor_groups[type].attr_count + 1),
GFP_KERNEL);
if (!sensor_groups[type].group.attrs)
return -ENOMEM;
pgroups[type] = &sensor_groups[type].group;
pdata->sensors_count += sensor_groups[type].attr_count;
sensor_groups[type].attr_count = 0;
}
return 0;
}
static void create_hwmon_attr(struct sensor_data *sdata, const char *attr_name,
ssize_t (*show)(struct device *dev,
struct device_attribute *attr,
char *buf))
{
snprintf(sdata->name, MAX_ATTR_LEN, "%s%d_%s",
sensor_groups[sdata->type].name, sdata->hwmon_index,
attr_name);
sysfs_attr_init(&sdata->dev_attr.attr);
sdata->dev_attr.attr.name = sdata->name;
sdata->dev_attr.attr.mode = S_IRUGO;
sdata->dev_attr.show = show;
}
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
/*
* Iterate through the device tree for each child of 'sensors' node, create
* a sysfs attribute file, the file is named by translating the DT node name
* to the name required by the higher 'hwmon' driver like fan1_input, temp1_max
* etc..
*/
static int create_device_attrs(struct platform_device *pdev)
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
{
struct platform_data *pdata = platform_get_drvdata(pdev);
const struct attribute_group **pgroups = pdata->attr_groups;
struct device_node *opal, *np;
struct sensor_data *sdata;
u32 sensor_id;
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
enum sensors type;
u32 count = 0;
int err = 0;
opal = of_find_node_by_path("/ibm,opal/sensors");
sdata = devm_kzalloc(&pdev->dev, pdata->sensors_count * sizeof(*sdata),
GFP_KERNEL);
if (!sdata) {
err = -ENOMEM;
goto exit_put_node;
}
for_each_child_of_node(opal, np) {
const char *attr_name;
u32 opal_index;
const char *label;
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
if (np->name == NULL)
continue;
type = get_sensor_type(np);
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
if (type == MAX_SENSOR_TYPE)
continue;
/*
* Newer device trees use a "sensor-data" property
* name for input.
*/
if (of_property_read_u32(np, "sensor-id", &sensor_id) &&
of_property_read_u32(np, "sensor-data", &sensor_id)) {
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
dev_info(&pdev->dev,
"'sensor-id' missing in the node '%s'\n",
np->name);
continue;
}
sdata[count].id = sensor_id;
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
sdata[count].type = type;
/*
* If we can not parse the node name, it means we are
* running on a newer device tree. We can just forget
* about the OPAL index and use a defaut value for the
* hwmon attribute name
*/
attr_name = parse_opal_node_name(np->name, type, &opal_index);
if (IS_ERR(attr_name)) {
attr_name = "input";
opal_index = INVALID_INDEX;
}
sdata[count].opal_index = opal_index;
sdata[count].hwmon_index =
get_sensor_hwmon_index(&sdata[count], sdata, count);
create_hwmon_attr(&sdata[count], attr_name, show_sensor);
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
pgroups[type]->attrs[sensor_groups[type].attr_count++] =
&sdata[count++].dev_attr.attr;
if (!of_property_read_string(np, "label", &label)) {
/*
* For the label attribute, we can reuse the
* "properties" of the previous "input"
* attribute. They are related to the same
* sensor.
*/
sdata[count].type = type;
sdata[count].opal_index = sdata[count - 1].opal_index;
sdata[count].hwmon_index = sdata[count - 1].hwmon_index;
make_sensor_label(np, &sdata[count], label);
create_hwmon_attr(&sdata[count], "label", show_label);
pgroups[type]->attrs[sensor_groups[type].attr_count++] =
&sdata[count++].dev_attr.attr;
}
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
}
exit_put_node:
of_node_put(opal);
return err;
}
static int ibmpowernv_probe(struct platform_device *pdev)
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
{
struct platform_data *pdata;
struct device *hwmon_dev;
int err;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
platform_set_drvdata(pdev, pdata);
pdata->sensors_count = 0;
err = populate_attr_groups(pdev);
if (err)
return err;
/* Create sysfs attribute data for each sensor found in the DT */
err = create_device_attrs(pdev);
if (err)
return err;
/* Finally, register with hwmon */
hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, DRVNAME,
pdata,
pdata->attr_groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static const struct platform_device_id opal_sensor_driver_ids[] = {
{
.name = "opal-sensor",
},
{ }
};
MODULE_DEVICE_TABLE(platform, opal_sensor_driver_ids);
static const struct of_device_id opal_sensor_match[] = {
{ .compatible = "ibm,opal-sensor" },
{ },
};
MODULE_DEVICE_TABLE(of, opal_sensor_match);
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
static struct platform_driver ibmpowernv_driver = {
.probe = ibmpowernv_probe,
.id_table = opal_sensor_driver_ids,
.driver = {
.name = DRVNAME,
.of_match_table = opal_sensor_match,
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
},
};
module_platform_driver(ibmpowernv_driver);
hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-07-08 09:08:38 +00:00
MODULE_AUTHOR("Neelesh Gupta <neelegup@linux.vnet.ibm.com>");
MODULE_DESCRIPTION("IBM POWERNV platform sensors");
MODULE_LICENSE("GPL");