Merge tag 'hwmon-for-v6.2-rc1' of...

Merge tag 'hwmon-for-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New drivers:

   - Driver for OneXPlayer mini AMD sensors

   - Ampere's Altra smpro-hwmon driver

  New chip and attribute support in existing drivers:

   - nct6775: Support for ASUS CROSSHAIR VIII/TUF/ProArt B550M

   - pmbus/ltc2978: Support for LTC7132

   - aquacomputer_d5next: Support for temperature sensor offsets and
     flow sensor pulses

   - coretemp: Support for dynamic ttarget and tjmax

  Improvements:

   - Use devm_regulator_get_enable() where appropriate

   - Use sysfs_emit() instead of scnprintf()

   - Remove some useless #include <linux/hwmon-vid.h>

   - Include <linux/kstrtox.h> when appropriate

   - Use simple i2c probe

   - it87: Check for a valid chip before using force_id, and new new
     module parameter to ignore ACPI resource conflicts

   - jc42: Use regmap, and restore min/max/critical temperatures on
     resume

   - Add reporting power good and status to PMBus based regulators

  Last minute fixes:

   - emc2305: Fix probing of emc2301/2/3, and fix setting pwm values
     manually if THERMAL is enabled

  And various other minor fixes and improvements"

* tag 'hwmon-for-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (37 commits)
  hwmon: (emc2305) fix pwm never being able to set lower
  hwmon: (emc2305) fix unable to probe emc2301/2/3
  hwmon: (dell-smm) Move error message to make probing silent
  hwmon: use sysfs_emit() to instead of scnprintf()
  hwmon: (oxp-sensors) Fix pwm reading
  hwmon: (aquacomputer_d5next) Add support for Quadro flow sensor pulses
  hwmon: (pmbus/core) Implement regulator get_status
  hwmon: (oxp-sensors) Add AOK ZOE and Mini PRO
  hwmon: (gsc-hwmon) Switch to flexible array to simplify code
  hwmon: (pmbus) Add power good support
  hwmon: (nct6775) add ASUS CROSSHAIR VIII/TUF/ProArt B550M
  hwmon: (coretemp) Add support for dynamic ttarget
  hwmon: (coretemp) Add support for dynamic tjmax
  hwmon: (coretemp) rearrange tjmax handing code
  hwmon: Remove some useless #include <linux/hwmon-vid.h>
  hwmon: (coretemp) Remove obsolete temp_data->valid
  hwmon: add OneXPlayer mini AMD sensors driver
  hwmon: (aquacomputer_d5next) Clear up macros and comments
  hwmon: (it87) Add DMI table for future extensions
  hwmon: Include <linux/kstrtox.h> when appropriate
  ...

Documentation/hwmon/aquacomputer_d5next.rst

@@ -39,7 +39,7 @@ current.
 
 The Quadro exposes four physical and sixteen virtual temperature sensors, a flow
 sensor and four PWM controllable fans, along with their speed (in RPM), power,
-voltage and current.
+voltage and current. Flow sensor pulses are also available.
 
 The Farbwerk and Farbwerk 360 expose four temperature sensors. Additionally,
 sixteen virtual temperature sensors of the Farbwerk 360 are exposed.
@@ -62,7 +62,9 @@ Sysfs entries
 
 ================ ==============================================================
 temp[1-20]_input Physical/virtual temperature sensors (in millidegrees Celsius)
+temp[1-4]_offset Temperature sensor correction offset (in millidegrees Celsius)
 fan[1-8]_input   Pump/fan speed (in RPM) / Flow speed (in dL/h)
+fan5_pulses      Quadro flow sensor pulses
 power[1-8]_input Pump/fan power (in micro Watts)
 in[0-7]_input    Pump/fan voltage (in milli Volts)
 curr[1-8]_input  Pump/fan current (in milli Amperes)

Documentation/hwmon/index.rst

@@ -160,6 +160,7 @@ Hardware Monitoring Kernel Drivers
    nzxt-kraken2
    nzxt-smart2
    occ
+   oxp-sensors
    pc87360
    pc87427
    pcf8591
@@ -187,6 +188,7 @@ Hardware Monitoring Kernel Drivers
    sis5595
    sl28cpld
    smm665
+   smpro-hwmon
    smsc47b397
    smsc47m192
    smsc47m1

Documentation/hwmon/oxp-sensors.rst

+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+Kernel driver oxp-sensors
+=========================
+
+Author:
+    - Joaquín Ignacio Aramendía <samsagax@gmail.com>
+
+Description:
+------------
+
+One X Player devices from One Netbook provide fan readings and fan control
+through its Embedded Controller.
+
+Currently only supports AMD boards from the One X Player and AOK ZOE lineup.
+Intel boards could be supported if we could figure out the EC registers and
+values to write to since the EC layout and model is different.
+
+Supported devices
+-----------------
+
+Currently the driver supports the following handhelds:
+
+ - AOK ZOE A1
+ - OneXPlayer AMD
+ - OneXPlayer mini AMD
+ - OneXPlayer mini AMD PRO
+
+Sysfs entries
+-------------
+
+The following attributes are supported:
+
+fan1_input
+  Read Only. Reads current fan RMP.
+
+pwm1_enable
+  Read Write. Enable manual fan control. Write "1" to set to manual, write "0"
+  to let the EC control de fan speed. Read this attribute to see current status.
+
+pwm1
+  Read Write. Read this attribute to see current duty cycle in the range [0-255].
+  When pwm1_enable is set to "1" (manual) write any value in the range [0-255]
+  to set fan speed.

Documentation/hwmon/smpro-hwmon.rst

+.. SPDX-License-Identifier: GPL-2.0-only
+
+Kernel driver Ampere(R)'s Altra(R) SMpro hwmon
+==============================================
+
+Supported chips:
+
+  * Ampere(R) Altra(R)
+
+    Prefix: ``smpro``
+
+    Reference: `Altra SoC BMC Interface Specification`
+
+Author: Thu Nguyen <thu@os.amperecomputing.com>
+
+Description
+-----------
+The smpro-hwmon driver supports hardware monitoring for Ampere(R) Altra(R)
+SoCs based on the SMpro co-processor (SMpro).  The following sensor metrics
+are supported by the driver:
+
+  * temperature
+  * voltage
+  * current
+  * power
+
+The interface provides the registers to query the various sensors and
+their values which are then exported to userspace by this driver.
+
+Usage Notes
+-----------
+
+The driver creates at least two sysfs files for each sensor.
+
+* ``<sensor_type><idx>_label`` reports the sensor label.
+* ``<sensor_type><idx>_input`` returns the sensor value.
+
+The sysfs files are allocated in the SMpro rootfs folder, with one root
+directory for each instance.
+
+When the SoC is turned off, the driver will fail to read registers and
+return ``-ENXIO``.
+
+Sysfs entries
+-------------
+
+The following sysfs files are supported:
+
+* Ampere(R) Altra(R):
+
+  ============    =============  ======  ===============================================
+  Name            Unit           Perm    Description
+  ============    =============  ======  ===============================================
+  temp1_input     millicelsius   RO      SoC temperature
+  temp2_input     millicelsius   RO      Max temperature reported among SoC VRDs
+  temp2_crit      millicelsius   RO      SoC VRD HOT Threshold temperature
+  temp3_input     millicelsius   RO      Max temperature reported among DIMM VRDs
+  temp4_input     millicelsius   RO      Max temperature reported among Core VRDs
+  temp5_input     millicelsius   RO      Temperature of DIMM0 on CH0
+  temp5_crit      millicelsius   RO      MEM HOT Threshold for all DIMMs
+  temp6_input     millicelsius   RO      Temperature of DIMM0 on CH1
+  temp6_crit      millicelsius   RO      MEM HOT Threshold for all DIMMs
+  temp7_input     millicelsius   RO      Temperature of DIMM0 on CH2
+  temp7_crit      millicelsius   RO      MEM HOT Threshold for all DIMMs
+  temp8_input     millicelsius   RO      Temperature of DIMM0 on CH3
+  temp8_crit      millicelsius   RO      MEM HOT Threshold for all DIMMs
+  temp9_input     millicelsius   RO      Temperature of DIMM0 on CH4
+  temp9_crit      millicelsius   RO      MEM HOT Threshold for all DIMMs
+  temp10_input    millicelsius   RO      Temperature of DIMM0 on CH5
+  temp10_crit     millicelsius   RO      MEM HOT Threshold for all DIMMs
+  temp11_input    millicelsius   RO      Temperature of DIMM0 on CH6
+  temp11_crit     millicelsius   RO      MEM HOT Threshold for all DIMMs
+  temp12_input    millicelsius   RO      Temperature of DIMM0 on CH7
+  temp12_crit     millicelsius   RO      MEM HOT Threshold for all DIMMs
+  temp13_input    millicelsius   RO      Max temperature reported among RCA VRDs
+  in0_input       millivolts     RO      Core voltage
+  in1_input       millivolts     RO      SoC voltage
+  in2_input       millivolts     RO      DIMM VRD1 voltage
+  in3_input       millivolts     RO      DIMM VRD2 voltage
+  in4_input       millivolts     RO      RCA VRD voltage
+  cur1_input      milliamperes   RO      Core VRD current
+  cur2_input      milliamperes   RO      SoC VRD current
+  cur3_input      milliamperes   RO      DIMM VRD1 current
+  cur4_input      milliamperes   RO      DIMM VRD2 current
+  cur5_input      milliamperes   RO      RCA VRD current
+  power1_input    microwatts     RO      Core VRD power
+  power2_input    microwatts     RO      SoC VRD power
+  power3_input    microwatts     RO      DIMM VRD1 power
+  power4_input    microwatts     RO      DIMM VRD2 power
+  power5_input    microwatts     RO      RCA VRD power
+  ============    =============  ======  ===============================================
+
+  Example::
+
+    # cat in0_input
+    830
+    # cat temp1_input
+    37000
+    # cat curr1_input
+    9000
+    # cat power5_input
+    19500000

MAINTAINERS

@@ -15452,6 +15452,12 @@ S:	Maintained
 F:	drivers/mtd/nand/onenand/
 F:	include/linux/mtd/onenand*.h
 
+ONEXPLAYER FAN DRIVER
+M:	Joaquín Ignacio Aramendía <samsagax@gmail.com>
+L:	linux-hwmon@vger.kernel.org
+S:	Maintained
+F:	drivers/hwmon/oxp-sensors.c
+
 ONION OMEGA2+ BOARD
 M:	Harvey Hunt <harveyhuntnexus@gmail.com>
 L:	linux-mips@vger.kernel.org

drivers/hwmon/Kconfig

@@ -67,6 +67,14 @@ config SENSORS_ABITUGURU3
 	  This driver can also be built as a module. If so, the module
 	  will be called abituguru3.
 
+config SENSORS_SMPRO
+	tristate "Ampere's Altra SMpro hardware monitoring driver"
+	depends on MFD_SMPRO
+	help
+	  If you say yes here you get support for the thermal, voltage,
+	  current and power sensors of Ampere's Altra processor family SoC
+	  with SMpro co-processor.
+
 config SENSORS_AD7314
 	tristate "Analog Devices AD7314 and compatibles"
 	depends on SPI
@@ -799,6 +807,7 @@ config SENSORS_IT87
 config SENSORS_JC42
 	tristate "JEDEC JC42.4 compliant memory module temperature sensors"
 	depends on I2C
+	select REGMAP_I2C
 	help
 	  If you say yes here, you get support for JEDEC JC42.4 compliant
 	  temperature sensors, which are used on many DDR3 memory modules for
@@ -1607,6 +1616,17 @@ config SENSORS_NZXT_SMART2
 
 source "drivers/hwmon/occ/Kconfig"
 
+config SENSORS_OXP
+	tristate "OneXPlayer EC fan control"
+	depends on ACPI
+	depends on X86
+	help
+		If you say yes here you get support for fan readings and control over
+		OneXPlayer handheld devices. Only OneXPlayer mini AMD handheld variant
+		boards are supported.
+
+		Can also be built as a module. In that case it will be called oxp-sensors.
+
 config SENSORS_PCF8591
 	tristate "Philips PCF8591 ADC/DAC"
 	depends on I2C

drivers/hwmon/Makefile

@@ -167,6 +167,7 @@ obj-$(CONFIG_SENSORS_NSA320)	+= nsa320-hwmon.o
 obj-$(CONFIG_SENSORS_NTC_THERMISTOR)	+= ntc_thermistor.o
 obj-$(CONFIG_SENSORS_NZXT_KRAKEN2) += nzxt-kraken2.o
 obj-$(CONFIG_SENSORS_NZXT_SMART2) += nzxt-smart2.o
+obj-$(CONFIG_SENSORS_OXP) += oxp-sensors.o
 obj-$(CONFIG_SENSORS_PC87360)	+= pc87360.o
 obj-$(CONFIG_SENSORS_PC87427)	+= pc87427.o
 obj-$(CONFIG_SENSORS_PCF8591)	+= pcf8591.o
@@ -187,6 +188,7 @@ obj-$(CONFIG_SENSORS_SHT4x)	+= sht4x.o
 obj-$(CONFIG_SENSORS_SHTC1)	+= shtc1.o
 obj-$(CONFIG_SENSORS_SIS5595)	+= sis5595.o
 obj-$(CONFIG_SENSORS_SMM665)	+= smm665.o
+obj-$(CONFIG_SENSORS_SMPRO)	+= smpro-hwmon.o
 obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o
 obj-$(CONFIG_SENSORS_SMSC47M1)	+= smsc47m1.o
 obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o

drivers/hwmon/adm1177.c

@@ -26,14 +26,12 @@
 /**
  * struct adm1177_state - driver instance specific data
  * @client:		pointer to i2c client
- * @reg:		regulator info for the power supply of the device
  * @r_sense_uohm:	current sense resistor value
  * @alert_threshold_ua:	current limit for shutdown
  * @vrange_high:	internal voltage divider
  */
 struct adm1177_state {
 	struct i2c_client	*client;
-	struct regulator	*reg;
 	u32			r_sense_uohm;
 	u32			alert_threshold_ua;
 	bool			vrange_high;
@@ -189,13 +187,6 @@ static const struct hwmon_chip_info adm1177_chip_info = {
 	.info = adm1177_info,
 };
 
-static void adm1177_remove(void *data)
-{
-	struct adm1177_state *st = data;
-
-	regulator_disable(st->reg);
-}
-
 static int adm1177_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
@@ -210,22 +201,10 @@ static int adm1177_probe(struct i2c_client *client)
 
 	st->client = client;
 
-	st->reg = devm_regulator_get_optional(&client->dev, "vref");
-	if (IS_ERR(st->reg)) {
-		if (PTR_ERR(st->reg) == -EPROBE_DEFER)
+	ret = devm_regulator_get_enable_optional(&client->dev, "vref");
+	if (ret == -EPROBE_DEFER)
 		return -EPROBE_DEFER;
 
-		st->reg = NULL;
-	} else {
-		ret = regulator_enable(st->reg);
-		if (ret)
-			return ret;
-		ret = devm_add_action_or_reset(&client->dev, adm1177_remove,
-					       st);
-		if (ret)
-			return ret;
-	}
-
 	if (device_property_read_u32(dev, "shunt-resistor-micro-ohms",
 				     &st->r_sense_uohm))
 		st->r_sense_uohm = 0;

drivers/hwmon/aht10.c

@@ -289,8 +289,7 @@ static const struct hwmon_chip_info aht10_chip_info = {
 	.info = aht10_info,
 };
 
-static int aht10_probe(struct i2c_client *client,
-		       const struct i2c_device_id *aht10_id)
+static int aht10_probe(struct i2c_client *client)
 {
 	struct device *device = &client->dev;
 	struct device *hwmon_dev;
@@ -336,7 +335,7 @@ static struct i2c_driver aht10_driver = {
 	.driver = {
 		.name = "aht10",
 	},
-	.probe      = aht10_probe,
+	.probe_new  = aht10_probe,
 	.id_table   = aht10_id,
 };
 

drivers/hwmon/atxp1.c

@@ -16,6 +16,7 @@
 #include <linux/hwmon.h>
 #include <linux/hwmon-vid.h>
 #include <linux/err.h>
+#include <linux/kstrtox.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
 #include <linux/slab.h>

drivers/hwmon/coretemp.c

@@ -55,6 +55,8 @@ MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
 
 /*
  * Per-Core Temperature Data
+ * @tjmax: The static tjmax value when tjmax cannot be retrieved from
+ *		IA32_TEMPERATURE_TARGET MSR.
  * @last_updated: The time when the current temperature value was updated
  *		earlier (in jiffies).
  * @cpu_core_id: The CPU Core from which temperature values should be read
@@ -64,11 +66,9 @@ MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
  * @attr_size:  Total number of pre-core attrs displayed in the sysfs.
  * @is_pkg_data: If this is 1, the temp_data holds pkgtemp data.
  *		Otherwise, temp_data holds coretemp data.
- * @valid: If this is 1, the current temperature is valid.
  */
 struct temp_data {
 	int temp;
-	int ttarget;
 	int tjmax;
 	unsigned long last_updated;
 	unsigned int cpu;
@@ -76,7 +76,6 @@ struct temp_data {
 	u32 status_reg;
 	int attr_size;
 	bool is_pkg_data;
-	bool valid;
 	struct sensor_device_attribute sd_attrs[TOTAL_ATTRS];
 	char attr_name[TOTAL_ATTRS][CORETEMP_NAME_LENGTH];
 	struct attribute *attrs[TOTAL_ATTRS + 1];
@@ -95,85 +94,6 @@ struct platform_data {
 	struct device_attribute name_attr;
 };
 
-/* Keep track of how many zone pointers we allocated in init() */
-static int max_zones __read_mostly;
-/* Array of zone pointers. Serialized by cpu hotplug lock */
-static struct platform_device **zone_devices;
-
-static ssize_t show_label(struct device *dev,
-				struct device_attribute *devattr, char *buf)
-{
-	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct platform_data *pdata = dev_get_drvdata(dev);
-	struct temp_data *tdata = pdata->core_data[attr->index];
-
-	if (tdata->is_pkg_data)
-		return sprintf(buf, "Package id %u\n", pdata->pkg_id);
-
-	return sprintf(buf, "Core %u\n", tdata->cpu_core_id);
-}
-
-static ssize_t show_crit_alarm(struct device *dev,
-				struct device_attribute *devattr, char *buf)
-{
-	u32 eax, edx;
-	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct platform_data *pdata = dev_get_drvdata(dev);
-	struct temp_data *tdata = pdata->core_data[attr->index];
-
-	mutex_lock(&tdata->update_lock);
-	rdmsr_on_cpu(tdata->cpu, tdata->status_reg, &eax, &edx);
-	mutex_unlock(&tdata->update_lock);
-
-	return sprintf(buf, "%d\n", (eax >> 5) & 1);
-}
-
-static ssize_t show_tjmax(struct device *dev,
-			struct device_attribute *devattr, char *buf)
-{
-	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct platform_data *pdata = dev_get_drvdata(dev);
-
-	return sprintf(buf, "%d\n", pdata->core_data[attr->index]->tjmax);
-}
-
-static ssize_t show_ttarget(struct device *dev,
-				struct device_attribute *devattr, char *buf)
-{
-	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct platform_data *pdata = dev_get_drvdata(dev);
-
-	return sprintf(buf, "%d\n", pdata->core_data[attr->index]->ttarget);
-}
-
-static ssize_t show_temp(struct device *dev,
-			struct device_attribute *devattr, char *buf)
-{
-	u32 eax, edx;
-	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct platform_data *pdata = dev_get_drvdata(dev);
-	struct temp_data *tdata = pdata->core_data[attr->index];
-
-	mutex_lock(&tdata->update_lock);
-
-	/* Check whether the time interval has elapsed */
-	if (!tdata->valid || time_after(jiffies, tdata->last_updated + HZ)) {
-		rdmsr_on_cpu(tdata->cpu, tdata->status_reg, &eax, &edx);
-		/*
-		 * Ignore the valid bit. In all observed cases the register
-		 * value is either low or zero if the valid bit is 0.
-		 * Return it instead of reporting an error which doesn't
-		 * really help at all.
-		 */
-		tdata->temp = tdata->tjmax - ((eax >> 16) & 0x7f) * 1000;
-		tdata->valid = true;
-		tdata->last_updated = jiffies;
-	}
-
-	mutex_unlock(&tdata->update_lock);
-	return sprintf(buf, "%d\n", tdata->temp);
-}
-
 struct tjmax_pci {
 	unsigned int device;
 	int tjmax;
@@ -340,20 +260,25 @@ static bool cpu_has_tjmax(struct cpuinfo_x86 *c)
 	       model != 0x36;
 }
 
-static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
+static int get_tjmax(struct temp_data *tdata, struct device *dev)
 {
+	struct cpuinfo_x86 *c = &cpu_data(tdata->cpu);
 	int err;
 	u32 eax, edx;
 	u32 val;
 
+	/* use static tjmax once it is set */
+	if (tdata->tjmax)
+		return tdata->tjmax;
+
 	/*
 	 * A new feature of current Intel(R) processors, the
 	 * IA32_TEMPERATURE_TARGET contains the TjMax value
 	 */
-	err = rdmsr_safe_on_cpu(id, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
+	err = rdmsr_safe_on_cpu(tdata->cpu, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
 	if (err) {
 		if (cpu_has_tjmax(c))
-			dev_warn(dev, "Unable to read TjMax from CPU %u\n", id);
+			dev_warn(dev, "Unable to read TjMax from CPU %u\n", tdata->cpu);
 	} else {
 		val = (eax >> 16) & 0xff;
 		/*
@@ -369,14 +294,133 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
 	if (force_tjmax) {
 		dev_notice(dev, "TjMax forced to %d degrees C by user\n",
 			   force_tjmax);
-		return force_tjmax * 1000;
-	}
-
+		tdata->tjmax = force_tjmax * 1000;
+	} else {
 		/*
 		 * An assumption is made for early CPUs and unreadable MSR.
 		 * NOTE: the calculated value may not be correct.
 		 */
-	return adjust_tjmax(c, id, dev);
+		tdata->tjmax = adjust_tjmax(c, tdata->cpu, dev);
+	}
+	return tdata->tjmax;
+}
+
+static int get_ttarget(struct temp_data *tdata, struct device *dev)
+{
+	u32 eax, edx;
+	int tjmax, ttarget_offset, ret;
+
+	/*
+	 * ttarget is valid only if tjmax can be retrieved from
+	 * MSR_IA32_TEMPERATURE_TARGET
+	 */
+	if (tdata->tjmax)
+		return -ENODEV;
+
+	ret = rdmsr_safe_on_cpu(tdata->cpu, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
+	if (ret)
+		return ret;
+
+	tjmax = (eax >> 16) & 0xff;
+
+	/* Read the still undocumented bits 8:15 of IA32_TEMPERATURE_TARGET. */
+	ttarget_offset = (eax >> 8) & 0xff;
+
+	return (tjmax - ttarget_offset) * 1000;
+}
+
+/* Keep track of how many zone pointers we allocated in init() */
+static int max_zones __read_mostly;
+/* Array of zone pointers. Serialized by cpu hotplug lock */
+static struct platform_device **zone_devices;
+
+static ssize_t show_label(struct device *dev,
+				struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct platform_data *pdata = dev_get_drvdata(dev);
+	struct temp_data *tdata = pdata->core_data[attr->index];
+
+	if (tdata->is_pkg_data)
+		return sprintf(buf, "Package id %u\n", pdata->pkg_id);
+
+	return sprintf(buf, "Core %u\n", tdata->cpu_core_id);
+}
+
+static ssize_t show_crit_alarm(struct device *dev,
+				struct device_attribute *devattr, char *buf)
+{
+	u32 eax, edx;
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct platform_data *pdata = dev_get_drvdata(dev);
+	struct temp_data *tdata = pdata->core_data[attr->index];
+
+	mutex_lock(&tdata->update_lock);
+	rdmsr_on_cpu(tdata->cpu, tdata->status_reg, &eax, &edx);
+	mutex_unlock(&tdata->update_lock);
+
+	return sprintf(buf, "%d\n", (eax >> 5) & 1);
+}
+
+static ssize_t show_tjmax(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct platform_data *pdata = dev_get_drvdata(dev);
+	struct temp_data *tdata = pdata->core_data[attr->index];
+	int tjmax;
+
+	mutex_lock(&tdata->update_lock);
+	tjmax = get_tjmax(tdata, dev);
+	mutex_unlock(&tdata->update_lock);
+
+	return sprintf(buf, "%d\n", tjmax);
+}
+
+static ssize_t show_ttarget(struct device *dev,
+				struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct platform_data *pdata = dev_get_drvdata(dev);
+	struct temp_data *tdata = pdata->core_data[attr->index];
+	int ttarget;
+
+	mutex_lock(&tdata->update_lock);
+	ttarget = get_ttarget(tdata, dev);
+	mutex_unlock(&tdata->update_lock);
+
+	if (ttarget < 0)
+		return ttarget;
+	return sprintf(buf, "%d\n", ttarget);
+}
+
+static ssize_t show_temp(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	u32 eax, edx;
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct platform_data *pdata = dev_get_drvdata(dev);
+	struct temp_data *tdata = pdata->core_data[attr->index];
+	int tjmax;
+
+	mutex_lock(&tdata->update_lock);
+
+	tjmax = get_tjmax(tdata, dev);
+	/* Check whether the time interval has elapsed */
+	if (time_after(jiffies, tdata->last_updated + HZ)) {
+		rdmsr_on_cpu(tdata->cpu, tdata->status_reg, &eax, &edx);
+		/*
+		 * Ignore the valid bit. In all observed cases the register
+		 * value is either low or zero if the valid bit is 0.
+		 * Return it instead of reporting an error which doesn't
+		 * really help at all.
+		 */
+		tdata->temp = tjmax - ((eax >> 16) & 0x7f) * 1000;
+		tdata->last_updated = jiffies;
+	}
+
+	mutex_unlock(&tdata->update_lock);
+	return sprintf(buf, "%d\n", tdata->temp);
 }
 
 static int create_core_attrs(struct temp_data *tdata, struct device *dev,
@@ -490,23 +534,17 @@ static int create_core_data(struct platform_device *pdev, unsigned int cpu,
 	if (err)
 		goto exit_free;
 
-	/* We can access status register. Get Critical Temperature */
-	tdata->tjmax = get_tjmax(c, cpu, &pdev->dev);
+	/* Make sure tdata->tjmax is a valid indicator for dynamic/static tjmax */
+	get_tjmax(tdata, &pdev->dev);
 
 	/*
-	 * Read the still undocumented bits 8:15 of IA32_TEMPERATURE_TARGET.
-	 * The target temperature is available on older CPUs but not in this
-	 * register. Atoms don't have the register at all.
+	 * The target temperature is available on older CPUs but not in the
+	 * MSR_IA32_TEMPERATURE_TARGET register. Atoms don't have the register
+	 * at all.
 	 */
-	if (c->x86_model > 0xe && c->x86_model != 0x1c) {
-		err = rdmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET,
-					&eax, &edx);
-		if (!err) {
-			tdata->ttarget
-			  = tdata->tjmax - ((eax >> 8) & 0xff) * 1000;
+	if (c->x86_model > 0xe && c->x86_model != 0x1c)
+		if (get_ttarget(tdata, &pdev->dev) >= 0)
 			tdata->attr_size++;
-		}
-	}
 
 	pdata->core_data[attr_no] = tdata;
 

drivers/hwmon/dell-smm-hwmon.c

@@ -1447,9 +1447,10 @@ static int __init i8k_init(void)
 	 */
 	if (i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG1) &&
 	    i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG2)) {
-		pr_err("unable to get SMM Dell signature\n");
 		if (!force)
 			return -ENODEV;
+
+		pr_err("Unable to get Dell SMM signature\n");
 	}
 
 	dell_smm_device = platform_create_bundle(&dell_smm_driver, dell_smm_probe, NULL, 0, NULL,

drivers/hwmon/ds1621.c

@@ -269,7 +269,7 @@ static ssize_t update_interval_show(struct device *dev,
 				    struct device_attribute *da, char *buf)
 {
 	struct ds1621_data *data = dev_get_drvdata(dev);
-	return scnprintf(buf, PAGE_SIZE, "%hu\n", data->update_interval);
+	return sysfs_emit(buf, "%hu\n", data->update_interval);
 }
 
 static ssize_t update_interval_store(struct device *dev,

drivers/hwmon/emc2305.c

@@ -16,7 +16,6 @@ static const unsigned short
 emc2305_normal_i2c[] = { 0x27, 0x2c, 0x2d, 0x2e, 0x2f, 0x4c, 0x4d, I2C_CLIENT_END };
 
 #define EMC2305_REG_DRIVE_FAIL_STATUS	0x27
-#define EMC2305_REG_DEVICE		0xfd
 #define EMC2305_REG_VENDOR		0xfe
 #define EMC2305_FAN_MAX			0xff
 #define EMC2305_FAN_MIN			0x00
@@ -172,22 +171,12 @@ static int emc2305_get_max_state(struct thermal_cooling_device *cdev, unsigned l
 	return 0;
 }
 
-static int emc2305_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state)
+static int __emc2305_set_cur_state(struct emc2305_data *data, int cdev_idx, unsigned long state)
 {
-	int cdev_idx, ret;
-	struct emc2305_data *data = cdev->devdata;
+	int ret;
 	struct i2c_client *client = data->client;
 	u8 val, i;
 
-	if (state > data->max_state)
-		return -EINVAL;
-
-	cdev_idx =  emc2305_get_cdev_idx(cdev);
-	if (cdev_idx < 0)
-		return cdev_idx;
-
-	/* Save thermal state. */
-	data->cdev_data[cdev_idx].last_thermal_state = state;
 	state = max_t(unsigned long, state, data->cdev_data[cdev_idx].last_hwmon_state);
 
 	val = EMC2305_PWM_STATE2DUTY(state, data->max_state, EMC2305_FAN_MAX);
@@ -212,6 +201,27 @@ static int emc2305_set_cur_state(struct thermal_cooling_device *cdev, unsigned l
 	return 0;
 }
 
+static int emc2305_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state)
+{
+	int cdev_idx, ret;
+	struct emc2305_data *data = cdev->devdata;
+
+	if (state > data->max_state)
+		return -EINVAL;
+
+	cdev_idx =  emc2305_get_cdev_idx(cdev);
+	if (cdev_idx < 0)
+		return cdev_idx;
+
+	/* Save thermal state. */
+	data->cdev_data[cdev_idx].last_thermal_state = state;
+	ret = __emc2305_set_cur_state(data, cdev_idx, state);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
 static const struct thermal_cooling_device_ops emc2305_cooling_ops = {
 	.get_max_state = emc2305_get_max_state,
 	.get_cur_state = emc2305_get_cur_state,
@@ -402,7 +412,7 @@ emc2305_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int ch
 				 */
 				if (data->cdev_data[cdev_idx].last_hwmon_state >=
 				    data->cdev_data[cdev_idx].last_thermal_state)
-					return emc2305_set_cur_state(data->cdev_data[cdev_idx].cdev,
+					return __emc2305_set_cur_state(data, cdev_idx,
 							data->cdev_data[cdev_idx].last_hwmon_state);
 				return 0;
 			}
@@ -518,13 +528,13 @@ static int emc2305_identify(struct device *dev)
 	return 0;
 }
 
-static int emc2305_probe(struct i2c_client *client, const struct i2c_device_id *id)
+static int emc2305_probe(struct i2c_client *client)
 {
 	struct i2c_adapter *adapter = client->adapter;
 	struct device *dev = &client->dev;
 	struct emc2305_data *data;
 	struct emc2305_platform_data *pdata;
-	int vendor, device;
+	int vendor;
 	int ret;
 	int i;
 
@@ -535,10 +545,6 @@ static int emc2305_probe(struct i2c_client *client, const struct i2c_device_id *
 	if (vendor != EMC2305_VENDOR)
 		return -ENODEV;
 
-	device = i2c_smbus_read_byte_data(client, EMC2305_REG_DEVICE);
-	if (device != EMC2305_DEVICE)
-		return -ENODEV;
-
 	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
@@ -607,7 +613,7 @@ static struct i2c_driver emc2305_driver = {
 	.driver = {
 		.name = "emc2305",
 	},
-	.probe    = emc2305_probe,
+	.probe_new = emc2305_probe,
 	.remove	  = emc2305_remove,
 	.id_table = emc2305_ids,
 	.address_list = emc2305_normal_i2c,

drivers/hwmon/fschmd.c

@@ -1083,9 +1083,9 @@ static int fschmd_detect(struct i2c_client *client,
 static int fschmd_probe(struct i2c_client *client)
 {
 	struct fschmd_data *data;
-	const char * const names[7] = { "Poseidon", "Hermes", "Scylla",
+	static const char * const names[7] = { "Poseidon", "Hermes", "Scylla",
 				"Heracles", "Heimdall", "Hades", "Syleus" };
-	const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 };
+	static const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 };
 	int i, err;
 	enum chips kind = i2c_match_id(fschmd_id, client)->driver_data;
 

drivers/hwmon/gpio-fan.c

@@ -14,6 +14,7 @@
 #include <linux/irq.h>
 #include <linux/platform_device.h>
 #include <linux/err.h>
+#include <linux/kstrtox.h>
 #include <linux/mutex.h>
 #include <linux/hwmon.h>
 #include <linux/gpio/consumer.h>

drivers/hwmon/gsc-hwmon.c

@@ -257,13 +257,10 @@ gsc_hwmon_get_devtree_pdata(struct device *dev)
 	if (nchannels == 0)
 		return ERR_PTR(-ENODEV);
 
-	pdata = devm_kzalloc(dev,
-			     sizeof(*pdata) + nchannels * sizeof(*ch),
+	pdata = devm_kzalloc(dev, struct_size(pdata, channels, nchannels),
 			     GFP_KERNEL);
 	if (!pdata)
 		return ERR_PTR(-ENOMEM);
-	ch = (struct gsc_hwmon_channel *)(pdata + 1);
-	pdata->channels = ch;
 	pdata->nchannels = nchannels;
 
 	/* fan controller base address */
@@ -277,6 +274,7 @@ gsc_hwmon_get_devtree_pdata(struct device *dev)
 
 	of_node_put(fan);
 
+	ch = pdata->channels;
 	/* allocate structures for channels and count instances of each type */
 	device_for_each_child_node(dev, child) {
 		if (fwnode_property_read_string(child, "label", &ch->name)) {

drivers/hwmon/hwmon.c

@@ -15,6 +15,7 @@
 #include <linux/gfp.h>
 #include <linux/hwmon.h>
 #include <linux/idr.h>
+#include <linux/kstrtox.h>
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/pci.h>

drivers/hwmon/it87.c

@@ -69,6 +69,10 @@ static unsigned short force_id;
 module_param(force_id, ushort, 0);
 MODULE_PARM_DESC(force_id, "Override the detected device ID");
 
+static bool ignore_resource_conflict;
+module_param(ignore_resource_conflict, bool, 0);
+MODULE_PARM_DESC(ignore_resource_conflict, "Ignore ACPI resource conflict");
+
 static struct platform_device *it87_pdev[2];
 
 #define	REG_2E	0x2e	/* The register to read/write */
@@ -563,6 +567,14 @@ struct it87_data {
 	s8 auto_temp[NUM_AUTO_PWM][5];	/* [nr][0] is point1_temp_hyst */
 };
 
+/* Board specific settings from DMI matching */
+struct it87_dmi_data {
+	u8 skip_pwm;		/* pwm channels to skip for this board  */
+};
+
+/* Global for results from DMI matching, if needed */
+static struct it87_dmi_data *dmi_data;
+
 static int adc_lsb(const struct it87_data *data, int nr)
 {
 	int lsb;
@@ -2389,7 +2401,6 @@ static int __init it87_find(int sioaddr, unsigned short *address,
 {
 	int err;
 	u16 chip_type;
-	const char *board_vendor, *board_name;
 	const struct it87_devices *config;
 
 	err = superio_enter(sioaddr);
@@ -2397,7 +2408,13 @@ static int __init it87_find(int sioaddr, unsigned short *address,
 		return err;
 
 	err = -ENODEV;
-	chip_type = force_id ? force_id : superio_inw(sioaddr, DEVID);
+	chip_type = superio_inw(sioaddr, DEVID);
+	/* check first for a valid chip before forcing chip id */
+	if (chip_type == 0xffff)
+		goto exit;
+
+	if (force_id)
+		chip_type = force_id;
 
 	switch (chip_type) {
 	case IT8705F_DEVID:
@@ -2802,24 +2819,9 @@ static int __init it87_find(int sioaddr, unsigned short *address,
 	if (sio_data->beep_pin)
 		pr_info("Beeping is supported\n");
 
-	/* Disable specific features based on DMI strings */
-	board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
-	board_name = dmi_get_system_info(DMI_BOARD_NAME);
-	if (board_vendor && board_name) {
-		if (strcmp(board_vendor, "nVIDIA") == 0 &&
-		    strcmp(board_name, "FN68PT") == 0) {
-			/*
-			 * On the Shuttle SN68PT, FAN_CTL2 is apparently not
-			 * connected to a fan, but to something else. One user
-			 * has reported instant system power-off when changing
-			 * the PWM2 duty cycle, so we disable it.
-			 * I use the board name string as the trigger in case
-			 * the same board is ever used in other systems.
-			 */
-			pr_info("Disabling pwm2 due to hardware constraints\n");
-			sio_data->skip_pwm = BIT(1);
-		}
-	}
+	/* Set values based on DMI matches */
+	if (dmi_data)
+		sio_data->skip_pwm |= dmi_data->skip_pwm;
 
 exit:
 	superio_exit(sioaddr);
@@ -3261,8 +3263,10 @@ static int __init it87_device_add(int index, unsigned short address,
 	int err;
 
 	err = acpi_check_resource_conflict(&res);
-	if (err)
+	if (err) {
+		if (!ignore_resource_conflict)
 			return err;
+	}
 
 	pdev = platform_device_alloc(DRVNAME, address);
 	if (!pdev)
@@ -3295,6 +3299,46 @@ static int __init it87_device_add(int index, unsigned short address,
 	return err;
 }
 
+/* callback function for DMI */
+static int it87_dmi_cb(const struct dmi_system_id *dmi_entry)
+{
+	dmi_data = dmi_entry->driver_data;
+
+	if (dmi_data && dmi_data->skip_pwm)
+		pr_info("Disabling pwm2 due to hardware constraints\n");
+
+	return 1;
+}
+
+/*
+ * On the Shuttle SN68PT, FAN_CTL2 is apparently not
+ * connected to a fan, but to something else. One user
+ * has reported instant system power-off when changing
+ * the PWM2 duty cycle, so we disable it.
+ * I use the board name string as the trigger in case
+ * the same board is ever used in other systems.
+ */
+static struct it87_dmi_data nvidia_fn68pt = {
+	.skip_pwm = BIT(1),
+};
+
+#define IT87_DMI_MATCH_VND(vendor, name, cb, data) \
+	{ \
+		.callback = cb, \
+		.matches = { \
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, vendor), \
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, name), \
+		}, \
+		.driver_data = data, \
+	}
+
+static const struct dmi_system_id it87_dmi_table[] __initconst = {
+	IT87_DMI_MATCH_VND("nVIDIA", "FN68PT", it87_dmi_cb, &nvidia_fn68pt),
+	{ }
+
+};
+MODULE_DEVICE_TABLE(dmi, it87_dmi_table);
+
 static int __init sm_it87_init(void)
 {
 	int sioaddr[2] = { REG_2E, REG_4E };
@@ -3307,6 +3351,8 @@ static int __init sm_it87_init(void)
 	if (err)
 		return err;
 
+	dmi_check_system(it87_dmi_table);
+
 	for (i = 0; i < ARRAY_SIZE(sioaddr); i++) {
 		memset(&sio_data, 0, sizeof(struct it87_sio_data));
 		isa_address[i] = 0;

drivers/hwmon/lm73.c

@@ -92,7 +92,7 @@ static ssize_t temp_show(struct device *dev, struct device_attribute *da,
 	/* use integer division instead of equivalent right shift to
 	   guarantee arithmetic shift and preserve the sign */
 	temp = (((s16) err) * 250) / 32;
-	return scnprintf(buf, PAGE_SIZE, "%d\n", temp);
+	return sysfs_emit(buf, "%d\n", temp);
 }
 
 static ssize_t convrate_store(struct device *dev, struct device_attribute *da,
@@ -137,7 +137,7 @@ static ssize_t convrate_show(struct device *dev, struct device_attribute *da,
 	int res;
 
 	res = (data->ctrl & LM73_CTRL_RES_MASK) >> LM73_CTRL_RES_SHIFT;
-	return scnprintf(buf, PAGE_SIZE, "%hu\n", lm73_convrates[res]);
+	return sysfs_emit(buf, "%hu\n", lm73_convrates[res]);
 }
 
 static ssize_t maxmin_alarm_show(struct device *dev,
@@ -154,7 +154,7 @@ static ssize_t maxmin_alarm_show(struct device *dev,
 	data->ctrl = ctrl;
 	mutex_unlock(&data->lock);
 
-	return scnprintf(buf, PAGE_SIZE, "%d\n", (ctrl >> attr->index) & 1);
+	return sysfs_emit(buf, "%d\n", (ctrl >> attr->index) & 1);
 
 abort:
 	mutex_unlock(&data->lock);

drivers/hwmon/lm90.c

@@ -103,6 +103,7 @@
 #include <linux/interrupt.h>
 #include <linux/jiffies.h>
 #include <linux/hwmon.h>
+#include <linux/kstrtox.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/of_device.h>
@@ -2663,11 +2664,6 @@ static void lm90_remove_pec(void *dev)
 	device_remove_file(dev, &dev_attr_pec);
 }
 
-static void lm90_regulator_disable(void *regulator)
-{
-	regulator_disable(regulator);
-}
-
 static int lm90_probe_channel_from_dt(struct i2c_client *client,
 				      struct device_node *child,
 				      struct lm90_data *data)
@@ -2749,24 +2745,13 @@ static int lm90_probe(struct i2c_client *client)
 	struct device *dev = &client->dev;
 	struct i2c_adapter *adapter = client->adapter;
 	struct hwmon_channel_info *info;
-	struct regulator *regulator;
 	struct device *hwmon_dev;
 	struct lm90_data *data;
 	int err;
 
-	regulator = devm_regulator_get(dev, "vcc");
-	if (IS_ERR(regulator))
-		return PTR_ERR(regulator);
-
-	err = regulator_enable(regulator);
-	if (err < 0) {
-		dev_err(dev, "Failed to enable regulator: %d\n", err);
-		return err;
-	}
-
-	err = devm_add_action_or_reset(dev, lm90_regulator_disable, regulator);
+	err = devm_regulator_get_enable(dev, "vcc");
 	if (err)
-		return err;
+		return dev_err_probe(dev, err, "Failed to enable regulator\n");
 
 	data = devm_kzalloc(dev, sizeof(struct lm90_data), GFP_KERNEL);
 	if (!data)

drivers/hwmon/ltc2992.c

@@ -881,7 +881,7 @@ static int ltc2992_parse_dt(struct ltc2992_state *st)
 	return 0;
 }
 
-static int ltc2992_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
+static int ltc2992_i2c_probe(struct i2c_client *client)
 {
 	struct device *hwmon_dev;
 	struct ltc2992_state *st;
@@ -927,7 +927,7 @@ static struct i2c_driver ltc2992_i2c_driver = {
 		.name = "ltc2992",
 		.of_match_table = ltc2992_of_match,
 	},
-	.probe    = ltc2992_i2c_probe,
+	.probe_new = ltc2992_i2c_probe,
 	.id_table = ltc2992_i2c_id,
 };
 

drivers/hwmon/max127.c

@@ -303,8 +303,7 @@ static const struct hwmon_chip_info max127_chip_info = {
 	.info = max127_info,
 };
 
-static int max127_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static int max127_probe(struct i2c_client *client)
 {
 	int i;
 	struct device *hwmon_dev;
@@ -340,7 +339,7 @@ static struct i2c_driver max127_driver = {
 	.driver = {
 		.name	= "max127",
 	},
-	.probe		= max127_probe,
+	.probe_new	= max127_probe,
 	.id_table	= max127_id,
 };
 

drivers/hwmon/mr75203.c

@@ -11,6 +11,7 @@
 #include <linux/clk.h>
 #include <linux/debugfs.h>
 #include <linux/hwmon.h>
+#include <linux/kstrtox.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/mutex.h>

drivers/hwmon/nct6775-platform.c

@@ -1043,7 +1043,9 @@ static struct platform_device *pdev[2];
 
 static const char * const asus_wmi_boards[] = {
 	"PRO H410T",
+	"ProArt B550-CREATOR",
 	"ProArt X570-CREATOR WIFI",
+	"ProArt Z490-CREATOR 10G",
 	"Pro B550M-C",
 	"Pro WS X570-ACE",
 	"PRIME B360-PLUS",
@@ -1055,8 +1057,10 @@ static const char * const asus_wmi_boards[] = {
 	"PRIME X570-P",
 	"PRIME X570-PRO",
 	"ROG CROSSHAIR VIII DARK HERO",
+	"ROG CROSSHAIR VIII EXTREME",
 	"ROG CROSSHAIR VIII FORMULA",
 	"ROG CROSSHAIR VIII HERO",
+	"ROG CROSSHAIR VIII HERO (WI-FI)",
 	"ROG CROSSHAIR VIII IMPACT",
 	"ROG STRIX B550-A GAMING",
 	"ROG STRIX B550-E GAMING",
@@ -1080,8 +1084,11 @@ static const char * const asus_wmi_boards[] = {
 	"ROG STRIX Z490-G GAMING (WI-FI)",
 	"ROG STRIX Z490-H GAMING",
 	"ROG STRIX Z490-I GAMING",
+	"TUF GAMING B550M-E",
+	"TUF GAMING B550M-E (WI-FI)",
 	"TUF GAMING B550M-PLUS",
 	"TUF GAMING B550M-PLUS (WI-FI)",
+	"TUF GAMING B550M-PLUS WIFI II",
 	"TUF GAMING B550-PLUS",
 	"TUF GAMING B550-PLUS WIFI II",
 	"TUF GAMING B550-PRO",

drivers/hwmon/occ/Kconfig

@@ -6,7 +6,6 @@
 config SENSORS_OCC_P8_I2C
 	tristate "POWER8 OCC through I2C"
 	depends on I2C
-	depends on ARM || ARM64 || COMPILE_TEST
 	select SENSORS_OCC
 	help
 	 This option enables support for monitoring sensors provided by the
@@ -21,7 +20,6 @@ config SENSORS_OCC_P8_I2C
 config SENSORS_OCC_P9_SBE
 	tristate "POWER9 OCC through SBE"
 	depends on FSI_OCC
-	depends on ARM || ARM64 || COMPILE_TEST
 	select SENSORS_OCC
 	help
 	 This option enables support for monitoring sensors provided by the

drivers/hwmon/oxp-sensors.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Platform driver for OXP Handhelds that expose fan reading and control
+ * via hwmon sysfs.
+ *
+ * Old boards have the same DMI strings and they are told appart by the
+ * boot cpu vendor (Intel/AMD). Currently only AMD boards are supported
+ * but the code is made to be simple to add other handheld boards in the
+ * future.
+ * Fan control is provided via pwm interface in the range [0-255].
+ * Old AMD boards use [0-100] as range in the EC, the written value is
+ * scaled to accommodate for that. Newer boards like the mini PRO and
+ * AOK ZOE are not scaled but have the same EC layout.
+ *
+ * Copyright (C) 2022 Joaquín I. Aramendía <samsagax@gmail.com>
+ */
+
+#include <linux/acpi.h>
+#include <linux/dev_printk.h>
+#include <linux/dmi.h>
+#include <linux/hwmon.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/processor.h>
+
+/* Handle ACPI lock mechanism */
+static u32 oxp_mutex;
+
+#define ACPI_LOCK_DELAY_MS	500
+
+static bool lock_global_acpi_lock(void)
+{
+	return ACPI_SUCCESS(acpi_acquire_global_lock(ACPI_LOCK_DELAY_MS, &oxp_mutex));
+}
+
+static bool unlock_global_acpi_lock(void)
+{
+	return ACPI_SUCCESS(acpi_release_global_lock(oxp_mutex));
+}
+
+enum oxp_board {
+	aok_zoe_a1 = 1,
+	oxp_mini_amd,
+	oxp_mini_amd_pro,
+};
+
+static enum oxp_board board;
+
+#define OXP_SENSOR_FAN_REG		0x76 /* Fan reading is 2 registers long */
+#define OXP_SENSOR_PWM_ENABLE_REG	0x4A /* PWM enable is 1 register long */
+#define OXP_SENSOR_PWM_REG		0x4B /* PWM reading is 1 register long */
+
+static const struct dmi_system_id dmi_table[] = {
+	{
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "AOKZOE"),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "AOKZOE A1 AR07"),
+		},
+		.driver_data = (void *) &(enum oxp_board) {aok_zoe_a1},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONE XPLAYER"),
+		},
+		.driver_data = (void *) &(enum oxp_board) {oxp_mini_amd},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER Mini Pro"),
+		},
+		.driver_data = (void *) &(enum oxp_board) {oxp_mini_amd_pro},
+	},
+	{},
+};
+
+/* Helper functions to handle EC read/write */
+static int read_from_ec(u8 reg, int size, long *val)
+{
+	int i;
+	int ret;
+	u8 buffer;
+
+	if (!lock_global_acpi_lock())
+		return -EBUSY;
+
+	*val = 0;
+	for (i = 0; i < size; i++) {
+		ret = ec_read(reg + i, &buffer);
+		if (ret)
+			return ret;
+		*val <<= i * 8;
+		*val += buffer;
+	}
+
+	if (!unlock_global_acpi_lock())
+		return -EBUSY;
+
+	return 0;
+}
+
+static int write_to_ec(const struct device *dev, u8 reg, u8 value)
+{
+	int ret;
+
+	if (!lock_global_acpi_lock())
+		return -EBUSY;
+
+	ret = ec_write(reg, value);
+
+	if (!unlock_global_acpi_lock())
+		return -EBUSY;
+
+	return ret;
+}
+
+static int oxp_pwm_enable(const struct device *dev)
+{
+	return write_to_ec(dev, OXP_SENSOR_PWM_ENABLE_REG, 0x01);
+}
+
+static int oxp_pwm_disable(const struct device *dev)
+{
+	return write_to_ec(dev, OXP_SENSOR_PWM_ENABLE_REG, 0x00);
+}
+
+/* Callbacks for hwmon interface */
+static umode_t oxp_ec_hwmon_is_visible(const void *drvdata,
+				       enum hwmon_sensor_types type, u32 attr, int channel)
+{
+	switch (type) {
+	case hwmon_fan:
+		return 0444;
+	case hwmon_pwm:
+		return 0644;
+	default:
+		return 0;
+	}
+}
+
+static int oxp_platform_read(struct device *dev, enum hwmon_sensor_types type,
+			     u32 attr, int channel, long *val)
+{
+	int ret;
+
+	switch (type) {
+	case hwmon_fan:
+		switch (attr) {
+		case hwmon_fan_input:
+			return read_from_ec(OXP_SENSOR_FAN_REG, 2, val);
+		default:
+			break;
+		}
+		break;
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_input:
+			ret = read_from_ec(OXP_SENSOR_PWM_REG, 1, val);
+			if (ret)
+				return ret;
+			if (board == oxp_mini_amd)
+				*val = (*val * 255) / 100;
+			return 0;
+		case hwmon_pwm_enable:
+			return read_from_ec(OXP_SENSOR_PWM_ENABLE_REG, 1, val);
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+	return -EOPNOTSUPP;
+}
+
+static int oxp_platform_write(struct device *dev, enum hwmon_sensor_types type,
+			      u32 attr, int channel, long val)
+{
+	switch (type) {
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_enable:
+			if (val == 1)
+				return oxp_pwm_enable(dev);
+			else if (val == 0)
+				return oxp_pwm_disable(dev);
+			return -EINVAL;
+		case hwmon_pwm_input:
+			if (val < 0 || val > 255)
+				return -EINVAL;
+			if (board == oxp_mini_amd)
+				val = (val * 100) / 255;
+			return write_to_ec(dev, OXP_SENSOR_PWM_REG, val);
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+	return -EOPNOTSUPP;
+}
+
+/* Known sensors in the OXP EC controllers */
+static const struct hwmon_channel_info *oxp_platform_sensors[] = {
+	HWMON_CHANNEL_INFO(fan,
+			   HWMON_F_INPUT),
+	HWMON_CHANNEL_INFO(pwm,
+			   HWMON_PWM_INPUT | HWMON_PWM_ENABLE),
+	NULL,
+};
+
+static const struct hwmon_ops oxp_ec_hwmon_ops = {
+	.is_visible = oxp_ec_hwmon_is_visible,
+	.read = oxp_platform_read,
+	.write = oxp_platform_write,
+};
+
+static const struct hwmon_chip_info oxp_ec_chip_info = {
+	.ops = &oxp_ec_hwmon_ops,
+	.info = oxp_platform_sensors,
+};
+
+/* Initialization logic */
+static int oxp_platform_probe(struct platform_device *pdev)
+{
+	const struct dmi_system_id *dmi_entry;
+	struct device *dev = &pdev->dev;
+	struct device *hwdev;
+
+	/*
+	 * Have to check for AMD processor here because DMI strings are the
+	 * same between Intel and AMD boards, the only way to tell them appart
+	 * is the CPU.
+	 * Intel boards seem to have different EC registers and values to
+	 * read/write.
+	 */
+	dmi_entry = dmi_first_match(dmi_table);
+	if (!dmi_entry || boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
+		return -ENODEV;
+
+	board = *((enum oxp_board *) dmi_entry->driver_data);
+
+	hwdev = devm_hwmon_device_register_with_info(dev, "oxpec", NULL,
+						     &oxp_ec_chip_info, NULL);
+
+	return PTR_ERR_OR_ZERO(hwdev);
+}
+
+static struct platform_driver oxp_platform_driver = {
+	.driver = {
+		.name = "oxp-platform",
+	},
+	.probe = oxp_platform_probe,
+};
+
+static struct platform_device *oxp_platform_device;
+
+static int __init oxp_platform_init(void)
+{
+	oxp_platform_device =
+		platform_create_bundle(&oxp_platform_driver,
+				       oxp_platform_probe, NULL, 0, NULL, 0);
+
+	return PTR_ERR_OR_ZERO(oxp_platform_device);
+}
+
+static void __exit oxp_platform_exit(void)
+{
+	platform_device_unregister(oxp_platform_device);
+	platform_driver_unregister(&oxp_platform_driver);
+}
+
+MODULE_DEVICE_TABLE(dmi, dmi_table);
+
+module_init(oxp_platform_init);
+module_exit(oxp_platform_exit);
+
+MODULE_AUTHOR("Joaquín Ignacio Aramendía <samsagax@gmail.com>");
+MODULE_DESCRIPTION("Platform driver that handles EC sensors of OneXPlayer devices");
+MODULE_LICENSE("GPL");

drivers/hwmon/pcf8591.c

@@ -14,6 +14,7 @@
 #include <linux/mutex.h>
 #include <linux/err.h>
 #include <linux/hwmon.h>
+#include <linux/kstrtox.h>
 
 /* Insmod parameters */
 

drivers/hwmon/pmbus/ltc2978.c

@@ -23,7 +23,7 @@ enum chips {
 	/* Managers */
 	ltc2972, ltc2974, ltc2975, ltc2977, ltc2978, ltc2979, ltc2980,
 	/* Controllers */
-	ltc3880, ltc3882, ltc3883, ltc3884, ltc3886, ltc3887, ltc3889, ltc7880,
+	ltc3880, ltc3882, ltc3883, ltc3884, ltc3886, ltc3887, ltc3889, ltc7132, ltc7880,
 	/* Modules */
 	ltm2987, ltm4664, ltm4675, ltm4676, ltm4677, ltm4678, ltm4680, ltm4686,
 	ltm4700,
@@ -45,15 +45,14 @@ enum chips {
 #define LTC2974_MFR_IOUT_PEAK		0xd7
 #define LTC2974_MFR_IOUT_MIN		0xd8
 
-/* LTC3880, LTC3882, LTC3883, LTC3887, LTM4675, and LTM4676 */
+/* LTC3880, LTC3882, LTC3883, LTC3887, LTM4675, LTM4676, LTC7132 */
 #define LTC3880_MFR_IOUT_PEAK		0xd7
 #define LTC3880_MFR_CLEAR_PEAKS		0xe3
 #define LTC3880_MFR_TEMPERATURE2_PEAK	0xf4
 
-/* LTC3883, LTC3884, LTC3886, LTC3889 and LTC7880 only */
+/* LTC3883, LTC3884, LTC3886, LTC3889, LTC7132, LTC7880 */
 #define LTC3883_MFR_IIN_PEAK		0xe1
 
-
 /* LTC2975 only */
 #define LTC2975_MFR_IIN_PEAK		0xc4
 #define LTC2975_MFR_IIN_MIN		0xc5
@@ -79,10 +78,11 @@ enum chips {
 #define LTC3884_ID			0x4C00
 #define LTC3886_ID			0x4600
 #define LTC3887_ID			0x4700
-#define LTM2987_ID_A			0x8010	/* A/B for two die IDs */
-#define LTM2987_ID_B			0x8020
 #define LTC3889_ID			0x4900
+#define LTC7132_ID			0x4CE0
 #define LTC7880_ID			0x49E0
+#define LTM2987_ID_A			0x8010	/* A/B for two die IDs */
+#define LTM2987_ID_B			0x8020
 #define LTM4664_ID			0x4120
 #define LTM4675_ID			0x47a0
 #define LTM4676_ID_REV1			0x4400
@@ -547,6 +547,7 @@ static const struct i2c_device_id ltc2978_id[] = {
 	{"ltc3886", ltc3886},
 	{"ltc3887", ltc3887},
 	{"ltc3889", ltc3889},
+	{"ltc7132", ltc7132},
 	{"ltc7880", ltc7880},
 	{"ltm2987", ltm2987},
 	{"ltm4664", ltm4664},
@@ -651,6 +652,8 @@ static int ltc2978_get_id(struct i2c_client *client)
 		return ltc3887;
 	else if (chip_id == LTC3889_ID)
 		return ltc3889;
+	else if (chip_id == LTC7132_ID)
+		return ltc7132;
 	else if (chip_id == LTC7880_ID)
 		return ltc7880;
 	else if (chip_id == LTM2987_ID_A || chip_id == LTM2987_ID_B)
@@ -831,6 +834,7 @@ static int ltc2978_probe(struct i2c_client *client)
 	case ltc3884:
 	case ltc3886:
 	case ltc3889:
+	case ltc7132:
 	case ltc7880:
 	case ltm4664:
 	case ltm4678:
@@ -902,6 +906,7 @@ static const struct of_device_id ltc2978_of_match[] = {
 	{ .compatible = "lltc,ltc3886" },
 	{ .compatible = "lltc,ltc3887" },
 	{ .compatible = "lltc,ltc3889" },
+	{ .compatible = "lltc,ltc7132" },
 	{ .compatible = "lltc,ltc7880" },
 	{ .compatible = "lltc,ltm2987" },
 	{ .compatible = "lltc,ltm4664" },

drivers/hwmon/pmbus/pmbus_core.c

@@ -2827,9 +2827,13 @@ static int pmbus_regulator_get_error_flags(struct regulator_dev *rdev, unsigned
 	if (status < 0)
 		return status;
 
-	if (pmbus_regulator_is_enabled(rdev) && (status & PB_STATUS_OFF))
+	if (pmbus_regulator_is_enabled(rdev)) {
+		if (status & PB_STATUS_OFF)
 			*flags |= REGULATOR_ERROR_FAIL;
 
+		if (status & PB_STATUS_POWER_GOOD_N)
+			*flags |= REGULATOR_ERROR_REGULATION_OUT;
+	}
 	/*
 	 * Unlike most other status bits, PB_STATUS_{IOUT_OC,VOUT_OV} are
 	 * defined strictly as fault indicators (not warnings).
@@ -2851,6 +2855,49 @@ static int pmbus_regulator_get_error_flags(struct regulator_dev *rdev, unsigned
 	return 0;
 }
 
+static int pmbus_regulator_get_status(struct regulator_dev *rdev)
+{
+	struct device *dev = rdev_get_dev(rdev);
+	struct i2c_client *client = to_i2c_client(dev->parent);
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	u8 page = rdev_get_id(rdev);
+	int status, ret;
+
+	mutex_lock(&data->update_lock);
+	status = pmbus_get_status(client, page, PMBUS_STATUS_WORD);
+	if (status < 0) {
+		ret = status;
+		goto unlock;
+	}
+
+	if (status & PB_STATUS_OFF) {
+		ret = REGULATOR_STATUS_OFF;
+		goto unlock;
+	}
+
+	/* If regulator is ON & reports power good then return ON */
+	if (!(status & PB_STATUS_POWER_GOOD_N)) {
+		ret = REGULATOR_STATUS_ON;
+		goto unlock;
+	}
+
+	ret = pmbus_regulator_get_error_flags(rdev, &status);
+	if (ret)
+		goto unlock;
+
+	if (status & (REGULATOR_ERROR_UNDER_VOLTAGE | REGULATOR_ERROR_OVER_CURRENT |
+	   REGULATOR_ERROR_REGULATION_OUT | REGULATOR_ERROR_FAIL | REGULATOR_ERROR_OVER_TEMP)) {
+		ret = REGULATOR_STATUS_ERROR;
+		goto unlock;
+	}
+
+	ret = REGULATOR_STATUS_UNDEFINED;
+
+unlock:
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
 static int pmbus_regulator_get_low_margin(struct i2c_client *client, int page)
 {
 	struct pmbus_data *data = i2c_get_clientdata(client);
@@ -2991,6 +3038,7 @@ const struct regulator_ops pmbus_regulator_ops = {
 	.disable = pmbus_regulator_disable,
 	.is_enabled = pmbus_regulator_is_enabled,
 	.get_error_flags = pmbus_regulator_get_error_flags,
+	.get_status = pmbus_regulator_get_status,
 	.get_voltage = pmbus_regulator_get_voltage,
 	.set_voltage = pmbus_regulator_set_voltage,
 	.list_voltage = pmbus_regulator_list_voltage,

drivers/hwmon/pmbus/q54sj108a2.c

@@ -8,6 +8,7 @@
 
 #include <linux/debugfs.h>
 #include <linux/i2c.h>
+#include <linux/kstrtox.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
 #include "pmbus.h"

drivers/hwmon/sbrmi.c

@@ -297,8 +297,7 @@ static int sbrmi_get_max_pwr_limit(struct sbrmi_data *data)
 	return ret;
 }
 
-static int sbrmi_probe(struct i2c_client *client,
-		       const struct i2c_device_id *id)
+static int sbrmi_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
 	struct device *hwmon_dev;
@@ -348,7 +347,7 @@ static struct i2c_driver sbrmi_driver = {
 		.name = "sbrmi",
 		.of_match_table = of_match_ptr(sbrmi_of_match),
 	},
-	.probe = sbrmi_probe,
+	.probe_new = sbrmi_probe,
 	.id_table = sbrmi_id,
 };
 

drivers/hwmon/sbtsi_temp.c

@@ -199,8 +199,7 @@ static const struct hwmon_chip_info sbtsi_chip_info = {
 	.info = sbtsi_info,
 };
 
-static int sbtsi_probe(struct i2c_client *client,
-		       const struct i2c_device_id *id)
+static int sbtsi_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
 	struct device *hwmon_dev;
@@ -239,7 +238,7 @@ static struct i2c_driver sbtsi_driver = {
 		.name = "sbtsi",
 		.of_match_table = of_match_ptr(sbtsi_of_match),
 	},
-	.probe = sbtsi_probe,
+	.probe_new = sbtsi_probe,
 	.id_table = sbtsi_id,
 };
 

drivers/hwmon/sht3x.c

@@ -320,7 +320,7 @@ static ssize_t temp1_limit_show(struct device *dev,
 	u8 index = to_sensor_dev_attr(attr)->index;
 	int temperature_limit = data->temperature_limits[index];
 
-	return scnprintf(buf, PAGE_SIZE, "%d\n", temperature_limit);
+	return sysfs_emit(buf, "%d\n", temperature_limit);
 }
 
 static ssize_t humidity1_limit_show(struct device *dev,
@@ -331,7 +331,7 @@ static ssize_t humidity1_limit_show(struct device *dev,
 	u8 index = to_sensor_dev_attr(attr)->index;
 	u32 humidity_limit = data->humidity_limits[index];
 
-	return scnprintf(buf, PAGE_SIZE, "%u\n", humidity_limit);
+	return sysfs_emit(buf, "%u\n", humidity_limit);
 }
 
 /*
@@ -483,7 +483,7 @@ static ssize_t temp1_alarm_show(struct device *dev,
 	if (ret)
 		return ret;
 
-	return scnprintf(buf, PAGE_SIZE, "%d\n", !!(buffer[0] & 0x04));
+	return sysfs_emit(buf, "%d\n", !!(buffer[0] & 0x04));
 }
 
 static ssize_t humidity1_alarm_show(struct device *dev,
@@ -498,7 +498,7 @@ static ssize_t humidity1_alarm_show(struct device *dev,
 	if (ret)
 		return ret;
 
-	return scnprintf(buf, PAGE_SIZE, "%d\n", !!(buffer[0] & 0x08));
+	return sysfs_emit(buf, "%d\n", !!(buffer[0] & 0x08));
 }
 
 static ssize_t heater_enable_show(struct device *dev,
@@ -513,7 +513,7 @@ static ssize_t heater_enable_show(struct device *dev,
 	if (ret)
 		return ret;
 
-	return scnprintf(buf, PAGE_SIZE, "%d\n", !!(buffer[0] & 0x20));
+	return sysfs_emit(buf, "%d\n", !!(buffer[0] & 0x20));
 }
 
 static ssize_t heater_enable_store(struct device *dev,
@@ -550,7 +550,7 @@ static ssize_t update_interval_show(struct device *dev,
 {
 	struct sht3x_data *data = dev_get_drvdata(dev);
 
-	return scnprintf(buf, PAGE_SIZE, "%u\n",
+	return sysfs_emit(buf, "%u\n",
 			 mode_to_update_interval[data->mode]);
 }
 

drivers/hwmon/sht4x.c

@@ -232,8 +232,7 @@ static const struct hwmon_chip_info sht4x_chip_info = {
 	.info = sht4x_info,
 };
 
-static int sht4x_probe(struct i2c_client *client,
-		       const struct i2c_device_id *sht4x_id)
+static int sht4x_probe(struct i2c_client *client)
 {
 	struct device *device = &client->dev;
 	struct device *hwmon_dev;
@@ -292,7 +291,7 @@ static struct i2c_driver sht4x_driver = {
 		.name = "sht4x",
 		.of_match_table = sht4x_of_match,
 	},
-	.probe		= sht4x_probe,
+	.probe_new	= sht4x_probe,
 	.id_table	= sht4x_id,
 };
 

drivers/hwmon/vt8231.c

@@ -22,7 +22,6 @@
 #include <linux/platform_device.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
-#include <linux/hwmon-vid.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/acpi.h>

drivers/hwmon/w83l786ng.c

@@ -16,7 +16,6 @@
 #include <linux/slab.h>
 #include <linux/i2c.h>
 #include <linux/hwmon.h>
-#include <linux/hwmon-vid.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
 #include <linux/mutex.h>

include/linux/hwmon-sysfs.h

@@ -8,6 +8,7 @@
 #define _LINUX_HWMON_SYSFS_H
 
 #include <linux/device.h>
+#include <linux/kstrtox.h>
 
 struct sensor_device_attribute{
 	struct device_attribute dev_attr;

include/linux/platform_data/gsc_hwmon.h

@@ -29,18 +29,17 @@ struct gsc_hwmon_channel {
 
 /**
  * struct gsc_hwmon_platform_data - platform data for gsc_hwmon driver
- * @channels:	pointer to array of gsc_hwmon_channel structures
- *		describing channels
  * @nchannels:	number of elements in @channels array
  * @vreference: voltage reference (mV)
  * @resolution: ADC bit resolution
  * @fan_base: register base for FAN controller
+ * @channels:	array of gsc_hwmon_channel structures describing channels
  */
 struct gsc_hwmon_platform_data {
-	const struct gsc_hwmon_channel *channels;
 	int nchannels;
 	unsigned int resolution;
 	unsigned int vreference;
 	unsigned int fan_base;
+	struct gsc_hwmon_channel channels[];
 };
 #endif