+static ssize_t mlxsw_hwmon_fan_rpm_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct mlxsw_hwmon_attr *mlwsw_hwmon_attr =
+ container_of(attr, struct mlxsw_hwmon_attr, dev_attr);
+ struct mlxsw_hwmon *mlxsw_hwmon = mlwsw_hwmon_attr->hwmon;
+ char mfsm_pl[MLXSW_REG_MFSM_LEN];
+ int err;
+
+ mlxsw_reg_mfsm_pack(mfsm_pl, mlwsw_hwmon_attr->type_index);
+ err = mlxsw_reg_query(mlxsw_hwmon->core, MLXSW_REG(mfsm), mfsm_pl);
+ if (err) {
+ dev_err(mlxsw_hwmon->bus_info->dev, "Failed to query fan\n");
+ return err;
+ }
+ return sprintf(buf, "%u\n", mlxsw_reg_mfsm_rpm_get(mfsm_pl));
+}
+
+static ssize_t mlxsw_hwmon_pwm_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct mlxsw_hwmon_attr *mlwsw_hwmon_attr =
+ container_of(attr, struct mlxsw_hwmon_attr, dev_attr);
+ struct mlxsw_hwmon *mlxsw_hwmon = mlwsw_hwmon_attr->hwmon;
+ char mfsc_pl[MLXSW_REG_MFSC_LEN];
+ int err;
+
+ mlxsw_reg_mfsc_pack(mfsc_pl, mlwsw_hwmon_attr->type_index, 0);
+ err = mlxsw_reg_query(mlxsw_hwmon->core, MLXSW_REG(mfsc), mfsc_pl);
+ if (err) {
+ dev_err(mlxsw_hwmon->bus_info->dev, "Failed to query PWM\n");
+ return err;
+ }
+ return sprintf(buf, "%u\n",
+ mlxsw_reg_mfsc_pwm_duty_cycle_get(mfsc_pl));
+}
+
+static ssize_t mlxsw_hwmon_pwm_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct mlxsw_hwmon_attr *mlwsw_hwmon_attr =
+ container_of(attr, struct mlxsw_hwmon_attr, dev_attr);
+ struct mlxsw_hwmon *mlxsw_hwmon = mlwsw_hwmon_attr->hwmon;
+ char mfsc_pl[MLXSW_REG_MFSC_LEN];
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+ if (val > 255)
+ return -EINVAL;
+
+ mlxsw_reg_mfsc_pack(mfsc_pl, mlwsw_hwmon_attr->type_index, val);
+ err = mlxsw_reg_write(mlxsw_hwmon->core, MLXSW_REG(mfsc), mfsc_pl);
+ if (err) {
+ dev_err(mlxsw_hwmon->bus_info->dev, "Failed to write PWM\n");
+ return err;
+ }
+ return err ? err : len;
+}
+