Merge tag 'hwmon-for-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New drivers:

   - Driver for the Microchip LAN966x SoC

   - PMBus driver for Infineon Digital Multi-phase xdp152 family
     controllers

  Chip support added to existing drivers:

   - asus-ec-sensors:
      - Support for ROG STRIX X570-E GAMING WIFI II, PRIME X470-PRO, and
        ProArt X570 Creator WIFI
      - External temperature sensor support for ASUS WS X570-ACE

   - nct6775:
      - Support for I2C driver
      - Support for ASUS PRO H410T / PRIME H410M-R /
        ROG X570-E GAMING WIFI II

   - lm75:
      - Support for - Atmel AT30TS74

   - pmbus/max16601:
      - Support for MAX16602

   - aquacomputer_d5next:
      - Support for Aquacomputer Farbwerk
      - Support for Aquacomputer Octo

   - jc42:
      - Support for S-34TS04A

  Kernel API changes / clarifications:

   - The chip parameter of with_info API is now mandatory

   - New hwmon_device_register_for_thermal API call for use by the
     thermal subsystem

  Improvements:

   - PMBus and JC42 drivers now register with thermal subsystem

   - PMBus drivers now support get_voltage/set_voltage power operations

   - The adt7475 driver now supports pin configuration

   - The lm90 driver now supports setting extended range temperatures
     configuration with a devicetree property

   - The dell-smm driver now registers as cooling device

   - The OCC driver delays hwmon registration until requested by
     userspace

  ... and various other minor fixes and improvements"

* tag 'hwmon-for-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (71 commits)
  hwmon: (aquacomputer_d5next) Fix an error handling path in aqc_probe()
  hwmon: (sl28cpld) Fix typo in comment
  hwmon: (pmbus) Check PEC support before reading other registers
  hwmon: (dimmtemp) Fix bitmap handling
  hwmon: (lm90) enable extended range according to DTS node
  dt-bindings: hwmon: lm90: add ti,extended-range-enable property
  dt-bindings: hwmon: lm90: add missing ti,tmp461
  hwmon: (ibmaem) Directly use ida_alloc()/free()
  hwmon: Directly use ida_alloc()/free()
  hwmon: (asus-ec-sensors) fix Formula VIII definition
  dt-bindings: trivial-devices: Add xdp152
  hwmon: (sl28cpld-hwmon) Use HWMON_CHANNEL_INFO macro
  hwmon: (pwm-fan) Use HWMON_CHANNEL_INFO macro
  hwmon: (peci/dimmtemp) Use HWMON_CHANNEL_INFO macro
  hwmon: (peci/cputemp) Use HWMON_CHANNEL_INFO macro
  hwmon: (mr75203) Use HWMON_CHANNEL_INFO macro
  hwmon: (ltc2992) Use HWMON_CHANNEL_INFO macro
  hwmon: (as370-hwmon) Use HWMON_CHANNEL_INFO macro
  hwmon: Make chip parameter for with_info API mandatory
  thermal/drivers/thermal_hwmon: Use hwmon_device_register_for_thermal()
  ...

2 files changed, 41 insertions, 0 deletions

diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h
index eba380b76d15..14325f93c6b2 100644
--- a/include/linux/hwmon.h
+++ b/include/linux/hwmon.h
@@ -450,6 +450,9 @@ hwmon_device_register_with_info(struct device *dev,
 				const struct hwmon_chip_info *info,
 				const struct attribute_group **extra_groups);
 struct device *
+hwmon_device_register_for_thermal(struct device *dev, const char *name,
+				  void *drvdata);
+struct device *
 devm_hwmon_device_register_with_info(struct device *dev,
 				const char *name, void *drvdata,
 				const struct hwmon_chip_info *info,
@@ -461,6 +464,9 @@ void devm_hwmon_device_unregister(struct device *dev);
 int hwmon_notify_event(struct device *dev, enum hwmon_sensor_types type,
 		       u32 attr, int channel);
 
+char *hwmon_sanitize_name(const char *name);
+char *devm_hwmon_sanitize_name(struct device *dev, const char *name);
+
 /**
  * hwmon_is_bad_char - Is the char invalid in a hwmon name
  * @ch: the char to be considered
diff --git a/include/linux/polynomial.h b/include/linux/polynomial.h
new file mode 100644
index 000000000000..9e074a0bb6fa
--- /dev/null
+++ b/include/linux/polynomial.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 BAIKAL ELECTRONICS, JSC
+ */
+
+#ifndef _POLYNOMIAL_H
+#define _POLYNOMIAL_H
+
+/*
+ * struct polynomial_term - one term descriptor of a polynomial
+ * @deg: degree of the term.
+ * @coef: multiplication factor of the term.
+ * @divider: distributed divider per each degree.
+ * @divider_leftover: divider leftover, which couldn't be redistributed.
+ */
+struct polynomial_term {
+	unsigned int deg;
+	long coef;
+	long divider;
+	long divider_leftover;
+};
+
+/*
+ * struct polynomial - a polynomial descriptor
+ * @total_divider: total data divider.
+ * @terms: polynomial terms, last term must have degree of 0
+ */
+struct polynomial {
+	long total_divider;
+	struct polynomial_term terms[];
+};
+
+long polynomial_calc(const struct polynomial *poly, long data);
+
+#endif