From: "Edward A. James" <[email protected]> Add sysfs entries to dump out PS registers and clear faults.
Signed-off-by: Edward A. James <[email protected]> --- drivers/hwmon/pmbus/ibmps.c | 78 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) diff --git a/drivers/hwmon/pmbus/ibmps.c b/drivers/hwmon/pmbus/ibmps.c index 1928dd9..f55d2bf 100644 --- a/drivers/hwmon/pmbus/ibmps.c +++ b/drivers/hwmon/pmbus/ibmps.c @@ -9,8 +9,10 @@ #include <linux/device.h> #include <linux/i2c.h> +#include <linux/hwmon-sysfs.h> #include <linux/jiffies.h> #include <linux/module.h> +#include <linux/sysfs.h> #include "pmbus.h" @@ -122,14 +124,90 @@ static int ibmps_read_word_data(struct i2c_client *client, int page, int reg) .read_word_data = ibmps_read_word_data, }; +static ssize_t ibmps_clear_faults(struct device *dev, + struct device_attribute *dev_attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + + pmbus_clear_faults(client); + + return count; +} +static DEVICE_ATTR(clear_faults, 0200, NULL, ibmps_clear_faults); + +static ssize_t ibmps_show_status_word(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + int rc; + struct i2c_client *client = to_i2c_client(dev); + + rc = pmbus_read_word_data(client, 0, PMBUS_STATUS_WORD); + if (rc < 0) + return rc; + + return snprintf(buf, PAGE_SIZE - 1, "%04x\n", rc); +} +static DEVICE_ATTR(status_word, 0444, ibmps_show_status_word, NULL); + +static ssize_t ibmps_show_status_byte(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + int rc; + struct i2c_client *client = to_i2c_client(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(dev_attr); + + rc = pmbus_read_byte_data(client, 0, PMBUS_STATUS_VOUT + sattr->index); + if (rc < 0) + return rc; + + return snprintf(buf, PAGE_SIZE - 1, "%02x\n", rc); +} + +static SENSOR_DEVICE_ATTR(status_vout, 0444, ibmps_show_status_byte, NULL, 0); +static SENSOR_DEVICE_ATTR(status_iout, 0444, ibmps_show_status_byte, NULL, 1); +static SENSOR_DEVICE_ATTR(status_input, 0444, ibmps_show_status_byte, NULL, 2); +static SENSOR_DEVICE_ATTR(status_temp, 0444, ibmps_show_status_byte, NULL, 3); +static SENSOR_DEVICE_ATTR(status_cml, 0444, ibmps_show_status_byte, NULL, 4); +static SENSOR_DEVICE_ATTR(status_other, 0444, ibmps_show_status_byte, NULL, 5); +static SENSOR_DEVICE_ATTR(status_mfr, 0444, ibmps_show_status_byte, NULL, 6); +static SENSOR_DEVICE_ATTR(status_fan, 0444, ibmps_show_status_byte, NULL, 7); + +static struct attribute *ibmps_attributes[] = { + &dev_attr_clear_faults.attr, + &dev_attr_status_word.attr, + &sensor_dev_attr_status_vout.dev_attr.attr, + &sensor_dev_attr_status_iout.dev_attr.attr, + &sensor_dev_attr_status_input.dev_attr.attr, + &sensor_dev_attr_status_temp.dev_attr.attr, + &sensor_dev_attr_status_cml.dev_attr.attr, + &sensor_dev_attr_status_other.dev_attr.attr, + &sensor_dev_attr_status_mfr.dev_attr.attr, + &sensor_dev_attr_status_fan.dev_attr.attr, + NULL +}; + +static const struct attribute_group ibmps_attribute_group = { + .attrs = ibmps_attributes, +}; + static int ibmps_probe(struct i2c_client *client, const struct i2c_device_id *id) { + int rc = sysfs_create_group(&client->dev.kobj, + &ibmps_attribute_group); + if (rc) + return rc; + return pmbus_do_probe(client, id, &ibmps_info); } static int ibmps_remove(struct i2c_client *client) { + sysfs_remove_group(&client->dev.kobj, &ibmps_attribute_group); + return pmbus_do_remove(client); } -- 1.8.3.1
