Merge tag 'hwmon-for-linus-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:

 - New hwmon registration API, including ports of several drivers to the
   new API

 - New hwmon driver for APM X-Gene SoC

 - Added support for UCD90160, DPS-460, DPS-800, and SGD009 PMBUs chips

 - Various cleanups, minor improvements, and fixes in several drivers

* tag 'hwmon-for-linus-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (54 commits)
  hwmon: (nct6775) Add support for multiple virtual temperature sources
  hwmon: (adt7470) No need for additional synchronization on kthread_stop()
  hwmon: (lm95241) Update module description to include LM95231
  hwmon: (lm95245) Select REGMAP_I2C
  hwmon: (ibmpowernv) Fix label for cores numbers not threads
  hwmon: (adt7470) Allow faster removal
  hwmon: (adt7470) Add write support to alarm_mask
  hwmon: (xgene) access mailbox as RAM
  hwmon: (lm95245) Use new hwmon registration API
  hwmon: (lm95241) Convert to use new hwmon registration API
  hwmon: (jc42) Convert to use new hwmon registration API
  hwmon: (max31790) Convert to use new hwmon registration API
  hwmon: (nct7904) Convert to use new hwmon registration API
  hwmon: (ltc4245) Convert to use new hwmon registration API
  hwmon: (tmp421) Convert to use new hwmon registration API
  hwmon: (tmp102) Convert to use new hwmon registration API
  hwmon: (lm90) Convert to use new hwmon registration API
  hwmon: (lm75) Convert to use new hwmon registration API
  hwmon: (xgene) Fix crash when alarm occurs before driver probe
  hwmon: (iio_hwmon) defer probe when no channel is found
  ...

1 files changed, 342 insertions, 0 deletions

diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h
index 09354f6c1d63..9d2f8bde7d12 100644
--- a/include/linux/hwmon.h
+++ b/include/linux/hwmon.h
@@ -14,9 +14,341 @@
 #ifndef _HWMON_H_
 #define _HWMON_H_
 
+#include <linux/bitops.h>
+
 struct device;
 struct attribute_group;
 
+enum hwmon_sensor_types {
+	hwmon_chip,
+	hwmon_temp,
+	hwmon_in,
+	hwmon_curr,
+	hwmon_power,
+	hwmon_energy,
+	hwmon_humidity,
+	hwmon_fan,
+	hwmon_pwm,
+};
+
+enum hwmon_chip_attributes {
+	hwmon_chip_temp_reset_history,
+	hwmon_chip_in_reset_history,
+	hwmon_chip_curr_reset_history,
+	hwmon_chip_power_reset_history,
+	hwmon_chip_register_tz,
+	hwmon_chip_update_interval,
+	hwmon_chip_alarms,
+};
+
+#define HWMON_C_TEMP_RESET_HISTORY	BIT(hwmon_chip_temp_reset_history)
+#define HWMON_C_IN_RESET_HISTORY	BIT(hwmon_chip_in_reset_history)
+#define HWMON_C_CURR_RESET_HISTORY	BIT(hwmon_chip_curr_reset_history)
+#define HWMON_C_POWER_RESET_HISTORY	BIT(hwmon_chip_power_reset_history)
+#define HWMON_C_REGISTER_TZ		BIT(hwmon_chip_register_tz)
+#define HWMON_C_UPDATE_INTERVAL		BIT(hwmon_chip_update_interval)
+#define HWMON_C_ALARMS			BIT(hwmon_chip_alarms)
+
+enum hwmon_temp_attributes {
+	hwmon_temp_input = 0,
+	hwmon_temp_type,
+	hwmon_temp_lcrit,
+	hwmon_temp_lcrit_hyst,
+	hwmon_temp_min,
+	hwmon_temp_min_hyst,
+	hwmon_temp_max,
+	hwmon_temp_max_hyst,
+	hwmon_temp_crit,
+	hwmon_temp_crit_hyst,
+	hwmon_temp_emergency,
+	hwmon_temp_emergency_hyst,
+	hwmon_temp_alarm,
+	hwmon_temp_lcrit_alarm,
+	hwmon_temp_min_alarm,
+	hwmon_temp_max_alarm,
+	hwmon_temp_crit_alarm,
+	hwmon_temp_emergency_alarm,
+	hwmon_temp_fault,
+	hwmon_temp_offset,
+	hwmon_temp_label,
+	hwmon_temp_lowest,
+	hwmon_temp_highest,
+	hwmon_temp_reset_history,
+};
+
+#define HWMON_T_INPUT		BIT(hwmon_temp_input)
+#define HWMON_T_TYPE		BIT(hwmon_temp_type)
+#define HWMON_T_LCRIT		BIT(hwmon_temp_lcrit)
+#define HWMON_T_LCRIT_HYST	BIT(hwmon_temp_lcrit_hyst)
+#define HWMON_T_MIN		BIT(hwmon_temp_min)
+#define HWMON_T_MIN_HYST	BIT(hwmon_temp_min_hyst)
+#define HWMON_T_MAX		BIT(hwmon_temp_max)
+#define HWMON_T_MAX_HYST	BIT(hwmon_temp_max_hyst)
+#define HWMON_T_CRIT		BIT(hwmon_temp_crit)
+#define HWMON_T_CRIT_HYST	BIT(hwmon_temp_crit_hyst)
+#define HWMON_T_EMERGENCY	BIT(hwmon_temp_emergency)
+#define HWMON_T_EMERGENCY_HYST	BIT(hwmon_temp_emergency_hyst)
+#define HWMON_T_MIN_ALARM	BIT(hwmon_temp_min_alarm)
+#define HWMON_T_MAX_ALARM	BIT(hwmon_temp_max_alarm)
+#define HWMON_T_CRIT_ALARM	BIT(hwmon_temp_crit_alarm)
+#define HWMON_T_EMERGENCY_ALARM	BIT(hwmon_temp_emergency_alarm)
+#define HWMON_T_FAULT		BIT(hwmon_temp_fault)
+#define HWMON_T_OFFSET		BIT(hwmon_temp_offset)
+#define HWMON_T_LABEL		BIT(hwmon_temp_label)
+#define HWMON_T_LOWEST		BIT(hwmon_temp_lowest)
+#define HWMON_T_HIGHEST		BIT(hwmon_temp_highest)
+#define HWMON_T_RESET_HISTORY	BIT(hwmon_temp_reset_history)
+
+enum hwmon_in_attributes {
+	hwmon_in_input,
+	hwmon_in_min,
+	hwmon_in_max,
+	hwmon_in_lcrit,
+	hwmon_in_crit,
+	hwmon_in_average,
+	hwmon_in_lowest,
+	hwmon_in_highest,
+	hwmon_in_reset_history,
+	hwmon_in_label,
+	hwmon_in_alarm,
+	hwmon_in_min_alarm,
+	hwmon_in_max_alarm,
+	hwmon_in_lcrit_alarm,
+	hwmon_in_crit_alarm,
+};
+
+#define HWMON_I_INPUT		BIT(hwmon_in_input)
+#define HWMON_I_MIN		BIT(hwmon_in_min)
+#define HWMON_I_MAX		BIT(hwmon_in_max)
+#define HWMON_I_LCRIT		BIT(hwmon_in_lcrit)
+#define HWMON_I_CRIT		BIT(hwmon_in_crit)
+#define HWMON_I_AVERAGE		BIT(hwmon_in_average)
+#define HWMON_I_LOWEST		BIT(hwmon_in_lowest)
+#define HWMON_I_HIGHEST		BIT(hwmon_in_highest)
+#define HWMON_I_RESET_HISTORY	BIT(hwmon_in_reset_history)
+#define HWMON_I_LABEL		BIT(hwmon_in_label)
+#define HWMON_I_ALARM		BIT(hwmon_in_alarm)
+#define HWMON_I_MIN_ALARM	BIT(hwmon_in_min_alarm)
+#define HWMON_I_MAX_ALARM	BIT(hwmon_in_max_alarm)
+#define HWMON_I_LCRIT_ALARM	BIT(hwmon_in_lcrit_alarm)
+#define HWMON_I_CRIT_ALARM	BIT(hwmon_in_crit_alarm)
+
+enum hwmon_curr_attributes {
+	hwmon_curr_input,
+	hwmon_curr_min,
+	hwmon_curr_max,
+	hwmon_curr_lcrit,
+	hwmon_curr_crit,
+	hwmon_curr_average,
+	hwmon_curr_lowest,
+	hwmon_curr_highest,
+	hwmon_curr_reset_history,
+	hwmon_curr_label,
+	hwmon_curr_alarm,
+	hwmon_curr_min_alarm,
+	hwmon_curr_max_alarm,
+	hwmon_curr_lcrit_alarm,
+	hwmon_curr_crit_alarm,
+};
+
+#define HWMON_C_INPUT		BIT(hwmon_curr_input)
+#define HWMON_C_MIN		BIT(hwmon_curr_min)
+#define HWMON_C_MAX		BIT(hwmon_curr_max)
+#define HWMON_C_LCRIT		BIT(hwmon_curr_lcrit)
+#define HWMON_C_CRIT		BIT(hwmon_curr_crit)
+#define HWMON_C_AVERAGE		BIT(hwmon_curr_average)
+#define HWMON_C_LOWEST		BIT(hwmon_curr_lowest)
+#define HWMON_C_HIGHEST		BIT(hwmon_curr_highest)
+#define HWMON_C_RESET_HISTORY	BIT(hwmon_curr_reset_history)
+#define HWMON_C_LABEL		BIT(hwmon_curr_label)
+#define HWMON_C_ALARM		BIT(hwmon_curr_alarm)
+#define HWMON_C_MIN_ALARM	BIT(hwmon_curr_min_alarm)
+#define HWMON_C_MAX_ALARM	BIT(hwmon_curr_max_alarm)
+#define HWMON_C_LCRIT_ALARM	BIT(hwmon_curr_lcrit_alarm)
+#define HWMON_C_CRIT_ALARM	BIT(hwmon_curr_crit_alarm)
+
+enum hwmon_power_attributes {
+	hwmon_power_average,
+	hwmon_power_average_interval,
+	hwmon_power_average_interval_max,
+	hwmon_power_average_interval_min,
+	hwmon_power_average_highest,
+	hwmon_power_average_lowest,
+	hwmon_power_average_max,
+	hwmon_power_average_min,
+	hwmon_power_input,
+	hwmon_power_input_highest,
+	hwmon_power_input_lowest,
+	hwmon_power_reset_history,
+	hwmon_power_accuracy,
+	hwmon_power_cap,
+	hwmon_power_cap_hyst,
+	hwmon_power_cap_max,
+	hwmon_power_cap_min,
+	hwmon_power_max,
+	hwmon_power_crit,
+	hwmon_power_label,
+	hwmon_power_alarm,
+	hwmon_power_cap_alarm,
+	hwmon_power_max_alarm,
+	hwmon_power_crit_alarm,
+};
+
+#define HWMON_P_AVERAGE			BIT(hwmon_power_average)
+#define HWMON_P_AVERAGE_INTERVAL	BIT(hwmon_power_average_interval)
+#define HWMON_P_AVERAGE_INTERVAL_MAX	BIT(hwmon_power_average_interval_max)
+#define HWMON_P_AVERAGE_INTERVAL_MIN	BIT(hwmon_power_average_interval_min)
+#define HWMON_P_AVERAGE_HIGHEST		BIT(hwmon_power_average_highest)
+#define HWMON_P_AVERAGE_LOWEST		BIT(hwmon_power_average_lowest)
+#define HWMON_P_AVERAGE_MAX		BIT(hwmon_power_average_max)
+#define HWMON_P_AVERAGE_MIN		BIT(hwmon_power_average_min)
+#define HWMON_P_INPUT			BIT(hwmon_power_input)
+#define HWMON_P_INPUT_HIGHEST		BIT(hwmon_power_input_highest)
+#define HWMON_P_INPUT_LOWEST		BIT(hwmon_power_input_lowest)
+#define HWMON_P_RESET_HISTORY		BIT(hwmon_power_reset_history)
+#define HWMON_P_ACCURACY		BIT(hwmon_power_accuracy)
+#define HWMON_P_CAP			BIT(hwmon_power_cap)
+#define HWMON_P_CAP_HYST		BIT(hwmon_power_cap_hyst)
+#define HWMON_P_CAP_MAX			BIT(hwmon_power_cap_max)
+#define HWMON_P_CAP_MIN			BIT(hwmon_power_cap_min)
+#define HWMON_P_MAX			BIT(hwmon_power_max)
+#define HWMON_P_CRIT			BIT(hwmon_power_crit)
+#define HWMON_P_LABEL			BIT(hwmon_power_label)
+#define HWMON_P_ALARM			BIT(hwmon_power_alarm)
+#define HWMON_P_CAP_ALARM		BIT(hwmon_power_cap_alarm)
+#define HWMON_P_MAX_ALARM		BIT(hwmon_power_max_alarm)
+#define HWMON_P_CRIT_ALARM		BIT(hwmon_power_crit_alarm)
+
+enum hwmon_energy_attributes {
+	hwmon_energy_input,
+	hwmon_energy_label,
+};
+
+#define HWMON_E_INPUT			BIT(hwmon_energy_input)
+#define HWMON_E_LABEL			BIT(hwmon_energy_label)
+
+enum hwmon_humidity_attributes {
+	hwmon_humidity_input,
+	hwmon_humidity_label,
+	hwmon_humidity_min,
+	hwmon_humidity_min_hyst,
+	hwmon_humidity_max,
+	hwmon_humidity_max_hyst,
+	hwmon_humidity_alarm,
+	hwmon_humidity_fault,
+};
+
+#define HWMON_H_INPUT			BIT(hwmon_humidity_input)
+#define HWMON_H_LABEL			BIT(hwmon_humidity_label)
+#define HWMON_H_MIN			BIT(hwmon_humidity_min)
+#define HWMON_H_MIN_HYST		BIT(hwmon_humidity_min_hyst)
+#define HWMON_H_MAX			BIT(hwmon_humidity_max)
+#define HWMON_H_MAX_HYST		BIT(hwmon_humidity_max_hyst)
+#define HWMON_H_ALARM			BIT(hwmon_humidity_alarm)
+#define HWMON_H_FAULT			BIT(hwmon_humidity_fault)
+
+enum hwmon_fan_attributes {
+	hwmon_fan_input,
+	hwmon_fan_label,
+	hwmon_fan_min,
+	hwmon_fan_max,
+	hwmon_fan_div,
+	hwmon_fan_pulses,
+	hwmon_fan_target,
+	hwmon_fan_alarm,
+	hwmon_fan_min_alarm,
+	hwmon_fan_max_alarm,
+	hwmon_fan_fault,
+};
+
+#define HWMON_F_INPUT			BIT(hwmon_fan_input)
+#define HWMON_F_LABEL			BIT(hwmon_fan_label)
+#define HWMON_F_MIN			BIT(hwmon_fan_min)
+#define HWMON_F_MAX			BIT(hwmon_fan_max)
+#define HWMON_F_DIV			BIT(hwmon_fan_div)
+#define HWMON_F_PULSES			BIT(hwmon_fan_pulses)
+#define HWMON_F_TARGET			BIT(hwmon_fan_target)
+#define HWMON_F_ALARM			BIT(hwmon_fan_alarm)
+#define HWMON_F_MIN_ALARM		BIT(hwmon_fan_min_alarm)
+#define HWMON_F_MAX_ALARM		BIT(hwmon_fan_max_alarm)
+#define HWMON_F_FAULT			BIT(hwmon_fan_fault)
+
+enum hwmon_pwm_attributes {
+	hwmon_pwm_input,
+	hwmon_pwm_enable,
+	hwmon_pwm_mode,
+	hwmon_pwm_freq,
+};
+
+#define HWMON_PWM_INPUT			BIT(hwmon_pwm_input)
+#define HWMON_PWM_ENABLE		BIT(hwmon_pwm_enable)
+#define HWMON_PWM_MODE			BIT(hwmon_pwm_mode)
+#define HWMON_PWM_FREQ			BIT(hwmon_pwm_freq)
+
+/**
+ * struct hwmon_ops - hwmon device operations
+ * @is_visible: Callback to return attribute visibility. Mandatory.
+ *		Parameters are:
+ *		@const void *drvdata:
+ *			Pointer to driver-private data structure passed
+ *			as argument to hwmon_device_register_with_info().
+ *		@type:	Sensor type
+ *		@attr:	Sensor attribute
+ *		@channel:
+ *			Channel number
+ *		The function returns the file permissions.
+ *		If the return value is 0, no attribute will be created.
+ * @read:       Read callback. Optional. If not provided, attributes
+ *		will not be readable.
+ *		Parameters are:
+ *		@dev:	Pointer to hardware monitoring device
+ *		@type:	Sensor type
+ *		@attr:	Sensor attribute
+ *		@channel:
+ *			Channel number
+ *		@val:	Pointer to returned value
+ *		The function returns 0 on success or a negative error number.
+ * @write:	Write callback. Optional. If not provided, attributes
+ *		will not be writable.
+ *		Parameters are:
+ *		@dev:	Pointer to hardware monitoring device
+ *		@type:	Sensor type
+ *		@attr:	Sensor attribute
+ *		@channel:
+ *			Channel number
+ *		@val:	Value to write
+ *		The function returns 0 on success or a negative error number.
+ */
+struct hwmon_ops {
+	umode_t (*is_visible)(const void *drvdata, enum hwmon_sensor_types type,
+			      u32 attr, int channel);
+	int (*read)(struct device *dev, enum hwmon_sensor_types type,
+		    u32 attr, int channel, long *val);
+	int (*write)(struct device *dev, enum hwmon_sensor_types type,
+		     u32 attr, int channel, long val);
+};
+
+/**
+ * Channel information
+ * @type:	Channel type.
+ * @config:	Pointer to NULL-terminated list of channel parameters.
+ *		Use for per-channel attributes.
+ */
+struct hwmon_channel_info {
+	enum hwmon_sensor_types type;
+	const u32 *config;
+};
+
+/**
+ * Chip configuration
+ * @ops:	Pointer to hwmon operations.
+ * @info:	Null-terminated list of channel information.
+ */
+struct hwmon_chip_info {
+	const struct hwmon_ops *ops;
+	const struct hwmon_channel_info **info;
+};
+
 struct device *hwmon_device_register(struct device *dev);
 struct device *
 hwmon_device_register_with_groups(struct device *dev, const char *name,
@@ -26,6 +358,16 @@ struct device *
 devm_hwmon_device_register_with_groups(struct device *dev, const char *name,
 				       void *drvdata,
 				       const struct attribute_group **groups);
+struct device *
+hwmon_device_register_with_info(struct device *dev,
+				const char *name, void *drvdata,
+				const struct hwmon_chip_info *info,
+				const struct attribute_group **groups);
+struct device *
+devm_hwmon_device_register_with_info(struct device *dev,
+				     const char *name, void *drvdata,
+				     const struct hwmon_chip_info *info,
+				     const struct attribute_group **groups);
 
 void hwmon_device_unregister(struct device *dev);
 void devm_hwmon_device_unregister(struct device *dev);