Adding upstream version 6.8.9.upstream/6.8.9

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-18 18:50:03 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-18 18:50:03 +0000
commit: 01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch)
tree: b406c5242a088c4f59c6e4b719b783f43aca6ae9 /drivers/hwmon
parent: Adding upstream version 6.7.12. (diff)
download: linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz
linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip
31 files changed, 2240 insertions, 410 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index cf27523eed..a608264da8 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -512,6 +512,7 @@ config SENSORS_DS1621
 
 config SENSORS_DELL_SMM
 	tristate "Dell laptop SMM BIOS hwmon driver"
+	depends on ACPI_WMI
 	depends on X86
 	imply THERMAL
 	help
@@ -663,6 +664,16 @@ config SENSORS_FTSTEUTATES
 	  This driver can also be built as a module. If so, the module
 	  will be called ftsteutates.
 
+config SENSORS_GIGABYTE_WATERFORCE
+	tristate "Gigabyte Waterforce X240/X280/X360 AIO CPU coolers"
+	depends on USB_HID
+	help
+	  If you say yes here you get support for hardware monitoring for the
+	  Gigabyte Waterforce X240/X280/X360 all-in-one CPU liquid coolers.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called gigabyte_waterforce.
+
 config SENSORS_GL518SM
 	tristate "Genesys Logic GL518SM"
 	depends on I2C
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index e84bd9685b..47be39af5c 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -80,6 +80,7 @@ obj-$(CONFIG_SENSORS_FSCHMD)	+= fschmd.o
 obj-$(CONFIG_SENSORS_FTSTEUTATES) += ftsteutates.o
 obj-$(CONFIG_SENSORS_G760A)	+= g760a.o
 obj-$(CONFIG_SENSORS_G762)	+= g762.o
+obj-$(CONFIG_SENSORS_GIGABYTE_WATERFORCE) += gigabyte_waterforce.o
 obj-$(CONFIG_SENSORS_GL518SM)	+= gl518sm.o
 obj-$(CONFIG_SENSORS_GL520SM)	+= gl520sm.o
 obj-$(CONFIG_SENSORS_GSC)	+= gsc-hwmon.o
diff --git a/drivers/hwmon/aquacomputer_d5next.c b/drivers/hwmon/aquacomputer_d5next.c
index 4fdd2e1242..2efe97f8d0 100644
--- a/drivers/hwmon/aquacomputer_d5next.c
+++ b/drivers/hwmon/aquacomputer_d5next.c
@@ -1476,8 +1476,6 @@ static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8
 	return 0;
 }
 
-#ifdef CONFIG_DEBUG_FS
-
 static int serial_number_show(struct seq_file *seqf, void *unused)
 {
 	struct aqc_data *priv = seqf->private;
@@ -1527,14 +1525,6 @@ static void aqc_debugfs_init(struct aqc_data *priv)
 		debugfs_create_file("power_cycles", 0444, priv->debugfs, priv, &power_cycles_fops);
 }
 
-#else
-
-static void aqc_debugfs_init(struct aqc_data *priv)
-{
-}
-
-#endif
-
 static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	struct aqc_data *priv;
diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c
index b2ae2176f1..4acc1858d8 100644
--- a/drivers/hwmon/aspeed-pwm-tacho.c
+++ b/drivers/hwmon/aspeed-pwm-tacho.c
@@ -166,6 +166,8 @@
 
 #define MAX_CDEV_NAME_LEN 16
 
+#define MAX_ASPEED_FAN_TACH_CHANNELS 16
+
 struct aspeed_cooling_device {
 	char name[16];
 	struct aspeed_pwm_tacho_data *priv;
@@ -181,7 +183,7 @@ struct aspeed_pwm_tacho_data {
 	struct reset_control *rst;
 	unsigned long clk_freq;
 	bool pwm_present[8];
-	bool fan_tach_present[16];
+	bool fan_tach_present[MAX_ASPEED_FAN_TACH_CHANNELS];
 	u8 type_pwm_clock_unit[3];
 	u8 type_pwm_clock_division_h[3];
 	u8 type_pwm_clock_division_l[3];
@@ -190,7 +192,7 @@ struct aspeed_pwm_tacho_data {
 	u16 type_fan_tach_unit[3];
 	u8 pwm_port_type[8];
 	u8 pwm_port_fan_ctrl[8];
-	u8 fan_tach_ch_source[16];
+	u8 fan_tach_ch_source[MAX_ASPEED_FAN_TACH_CHANNELS];
 	struct aspeed_cooling_device *cdev[8];
 	const struct attribute_group *groups[3];
 	/* protects access to shared ASPEED_PTCR_RESULT */
@@ -743,20 +745,27 @@ static void aspeed_create_pwm_port(struct aspeed_pwm_tacho_data *priv,
 	aspeed_set_pwm_port_fan_ctrl(priv, pwm_port, INIT_FAN_CTRL);
 }
 
-static void aspeed_create_fan_tach_channel(struct aspeed_pwm_tacho_data *priv,
-					   u8 *fan_tach_ch,
-					   int count,
-					   u8 pwm_source)
+static int aspeed_create_fan_tach_channel(struct device *dev,
+					  struct aspeed_pwm_tacho_data *priv,
+					  u8 *fan_tach_ch,
+					  int count,
+					  u8 pwm_source)
 {
 	u8 val, index;
 
 	for (val = 0; val < count; val++) {
 		index = fan_tach_ch[val];
+		if (index >= MAX_ASPEED_FAN_TACH_CHANNELS) {
+			dev_err(dev, "Invalid Fan Tach input channel %u\n.", index);
+			return -EINVAL;
+		}
 		aspeed_set_fan_tach_ch_enable(priv->regmap, index, true);
 		priv->fan_tach_present[index] = true;
 		priv->fan_tach_ch_source[index] = pwm_source;
 		aspeed_set_fan_tach_ch_source(priv->regmap, index, pwm_source);
 	}
+
+	return 0;
 }
 
 static int
@@ -880,7 +889,10 @@ static int aspeed_create_fan(struct device *dev,
 					fan_tach_ch, count);
 	if (ret)
 		return ret;
-	aspeed_create_fan_tach_channel(priv, fan_tach_ch, count, pwm_port);
+
+	ret = aspeed_create_fan_tach_channel(dev, priv, fan_tach_ch, count, pwm_port);
+	if (ret)
+		return ret;
 
 	return 0;
 }
diff --git a/drivers/hwmon/corsair-cpro.c b/drivers/hwmon/corsair-cpro.c
index 463ab4296e..a284a02839 100644
--- a/drivers/hwmon/corsair-cpro.c
+++ b/drivers/hwmon/corsair-cpro.c
@@ -524,7 +524,7 @@ static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (ret)
 		goto out_hw_close;
 	ccp->hwmon_dev = hwmon_device_register_with_info(&hdev->dev, "corsaircpro",
-							 ccp, &ccp_chip_info, 0);
+							 ccp, &ccp_chip_info, NULL);
 	if (IS_ERR(ccp->hwmon_dev)) {
 		ret = PTR_ERR(ccp->hwmon_dev);
 		goto out_hw_close;
diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index 44aaf9b919..6d8c0f328b 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -12,6 +12,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/acpi.h>
 #include <linux/capability.h>
 #include <linux/cpu.h>
 #include <linux/ctype.h>
@@ -34,8 +35,10 @@
 #include <linux/thermal.h>
 #include <linux/types.h>
 #include <linux/uaccess.h>
+#include <linux/wmi.h>
 
 #include <linux/i8k.h>
+#include <asm/unaligned.h>
 
 #define I8K_SMM_FN_STATUS	0x0025
 #define I8K_SMM_POWER_STATUS	0x0069
@@ -66,9 +69,26 @@
 #define I8K_POWER_AC		0x05
 #define I8K_POWER_BATTERY	0x01
 
+#define DELL_SMM_WMI_GUID	"F1DDEE52-063C-4784-A11E-8A06684B9B01"
+#define DELL_SMM_LEGACY_EXECUTE	0x1
+
 #define DELL_SMM_NO_TEMP	10
 #define DELL_SMM_NO_FANS	3
 
+struct smm_regs {
+	unsigned int eax;
+	unsigned int ebx;
+	unsigned int ecx;
+	unsigned int edx;
+	unsigned int esi;
+	unsigned int edi;
+};
+
+struct dell_smm_ops {
+	struct device *smm_dev;
+	int (*smm_call)(struct device *smm_dev, struct smm_regs *regs);
+};
+
 struct dell_smm_data {
 	struct mutex i8k_mutex; /* lock for sensors writes */
 	char bios_version[4];
@@ -76,14 +96,11 @@ struct dell_smm_data {
 	uint i8k_fan_mult;
 	uint i8k_pwm_mult;
 	uint i8k_fan_max;
-	bool disallow_fan_type_call;
-	bool disallow_fan_support;
-	unsigned int manual_fan;
-	unsigned int auto_fan;
 	int temp_type[DELL_SMM_NO_TEMP];
 	bool fan[DELL_SMM_NO_FANS];
 	int fan_type[DELL_SMM_NO_FANS];
 	int *fan_nominal_speed[DELL_SMM_NO_FANS];
+	const struct dell_smm_ops *ops;
 };
 
 struct dell_smm_cooling_data {
@@ -123,14 +140,9 @@ static uint fan_max;
 module_param(fan_max, uint, 0);
 MODULE_PARM_DESC(fan_max, "Maximum configurable fan speed (default: autodetect)");
 
-struct smm_regs {
-	unsigned int eax;
-	unsigned int ebx;
-	unsigned int ecx;
-	unsigned int edx;
-	unsigned int esi;
-	unsigned int edi;
-};
+static bool disallow_fan_type_call, disallow_fan_support;
+
+static unsigned int manual_fan, auto_fan;
 
 static const char * const temp_labels[] = {
 	"CPU",
@@ -171,12 +183,8 @@ static inline const char __init *i8k_get_dmi_data(int field)
  */
 static int i8k_smm_func(void *par)
 {
-	ktime_t calltime = ktime_get();
 	struct smm_regs *regs = par;
-	int eax = regs->eax;
-	int ebx = regs->ebx;
 	unsigned char carry;
-	long long duration;
 
 	/* SMM requires CPU 0 */
 	if (smp_processor_id() != 0)
@@ -193,14 +201,7 @@ static int i8k_smm_func(void *par)
 		       "+S" (regs->esi),
 		       "+D" (regs->edi));
 
-	duration = ktime_us_delta(ktime_get(), calltime);
-	pr_debug("smm(0x%.4x 0x%.4x) = 0x%.4x carry: %d (took %7lld usecs)\n",
-		 eax, ebx, regs->eax & 0xffff, carry, duration);
-
-	if (duration > DELL_SMM_MAX_DURATION)
-		pr_warn_once("SMM call took %lld usecs!\n", duration);
-
-	if (carry || (regs->eax & 0xffff) == 0xffff || regs->eax == eax)
+	if (carry)
 		return -EINVAL;
 
 	return 0;
@@ -209,7 +210,7 @@ static int i8k_smm_func(void *par)
 /*
  * Call the System Management Mode BIOS.
  */
-static int i8k_smm(struct smm_regs *regs)
+static int i8k_smm_call(struct device *dummy, struct smm_regs *regs)
 {
 	int ret;
 
@@ -220,6 +221,134 @@ static int i8k_smm(struct smm_regs *regs)
 	return ret;
 }
 
+static const struct dell_smm_ops i8k_smm_ops = {
+	.smm_call = i8k_smm_call,
+};
+
+/*
+ * Call the System Management Mode BIOS over WMI.
+ */
+static ssize_t wmi_parse_register(u8 *buffer, u32 length, unsigned int *reg)
+{
+	__le32 value;
+	u32 reg_size;
+
+	if (length <= sizeof(reg_size))
+		return -ENODATA;
+
+	reg_size = get_unaligned_le32(buffer);
+	if (!reg_size || reg_size > sizeof(value))
+		return -ENOMSG;
+
+	if (length < sizeof(reg_size) + reg_size)
+		return -ENODATA;
+
+	memcpy_and_pad(&value, sizeof(value), buffer + sizeof(reg_size), reg_size, 0);
+	*reg = le32_to_cpu(value);
+
+	return reg_size + sizeof(reg_size);
+}
+
+static int wmi_parse_response(u8 *buffer, u32 length, struct smm_regs *regs)
+{
+	unsigned int *registers[] = {
+		&regs->eax,
+		&regs->ebx,
+		&regs->ecx,
+		&regs->edx
+	};
+	u32 offset = 0;
+	ssize_t ret;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(registers); i++) {
+		if (offset >= length)
+			return -ENODATA;
+
+		ret = wmi_parse_register(buffer + offset, length - offset, registers[i]);
+		if (ret < 0)
+			return ret;
+
+		offset += ret;
+	}
+
+	if (offset != length)
+		return -ENOMSG;
+
+	return 0;
+}
+
+static int wmi_smm_call(struct device *dev, struct smm_regs *regs)
+{
+	struct wmi_device *wdev = container_of(dev, struct wmi_device, dev);
+	struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
+	u32 wmi_payload[] = {
+		sizeof(regs->eax),
+		regs->eax,
+		sizeof(regs->ebx),
+		regs->ebx,
+		sizeof(regs->ecx),
+		regs->ecx,
+		sizeof(regs->edx),
+		regs->edx
+	};
+	const struct acpi_buffer in = {
+		.length = sizeof(wmi_payload),
+		.pointer = &wmi_payload,
+	};
+	union acpi_object *obj;
+	acpi_status status;
+	int ret;
+
+	status = wmidev_evaluate_method(wdev, 0x0, DELL_SMM_LEGACY_EXECUTE, &in, &out);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	obj = out.pointer;
+	if (!obj)
+		return -ENODATA;
+
+	if (obj->type != ACPI_TYPE_BUFFER) {
+		ret = -ENOMSG;
+
+		goto err_free;
+	}
+
+	ret = wmi_parse_response(obj->buffer.pointer, obj->buffer.length, regs);
+
+err_free:
+	kfree(obj);
+
+	return ret;
+}
+
+static int dell_smm_call(const struct dell_smm_ops *ops, struct smm_regs *regs)
+{
+	unsigned int eax = regs->eax;
+	unsigned int ebx = regs->ebx;
+	long long duration;
+	ktime_t calltime;
+	int ret;
+
+	calltime = ktime_get();
+	ret = ops->smm_call(ops->smm_dev, regs);
+	duration = ktime_us_delta(ktime_get(), calltime);
+
+	pr_debug("SMM(0x%.4x 0x%.4x) = 0x%.4x status: %d (took %7lld usecs)\n",
+		 eax, ebx, regs->eax & 0xffff, ret, duration);
+
+	if (duration > DELL_SMM_MAX_DURATION)
+		pr_warn_once("SMM call took %lld usecs!\n", duration);
+
+	if (ret < 0)
+		return ret;
+
+	if ((regs->eax & 0xffff) == 0xffff || regs->eax == eax)
+		return -EINVAL;
+
+	return 0;
+}
+
 /*
  * Read the fan status.
  */
@@ -230,10 +359,10 @@ static int i8k_get_fan_status(const struct dell_smm_data *data, u8 fan)
 		.ebx = fan,
 	};
 
-	if (data->disallow_fan_support)
+	if (disallow_fan_support)
 		return -EINVAL;
 
-	return i8k_smm(&regs) ? : regs.eax & 0xff;
+	return dell_smm_call(data->ops, &regs) ? : regs.eax & 0xff;
 }
 
 /*
@@ -246,10 +375,10 @@ static int i8k_get_fan_speed(const struct dell_smm_data *data, u8 fan)
 		.ebx = fan,
 	};
 
-	if (data->disallow_fan_support)
+	if (disallow_fan_support)
 		return -EINVAL;
 
-	return i8k_smm(&regs) ? : (regs.eax & 0xffff) * data->i8k_fan_mult;
+	return dell_smm_call(data->ops, &regs) ? : (regs.eax & 0xffff) * data->i8k_fan_mult;
 }
 
 /*
@@ -262,10 +391,10 @@ static int _i8k_get_fan_type(const struct dell_smm_data *data, u8 fan)
 		.ebx = fan,
 	};
 
-	if (data->disallow_fan_support || data->disallow_fan_type_call)
+	if (disallow_fan_support || disallow_fan_type_call)
 		return -EINVAL;
 
-	return i8k_smm(&regs) ? : regs.eax & 0xff;
+	return dell_smm_call(data->ops, &regs) ? : regs.eax & 0xff;
 }
 
 static int i8k_get_fan_type(struct dell_smm_data *data, u8 fan)
@@ -280,17 +409,17 @@ static int i8k_get_fan_type(struct dell_smm_data *data, u8 fan)
 /*
  * Read the fan nominal rpm for specific fan speed.
  */
-static int __init i8k_get_fan_nominal_speed(const struct dell_smm_data *data, u8 fan, int speed)
+static int i8k_get_fan_nominal_speed(const struct dell_smm_data *data, u8 fan, int speed)
 {
 	struct smm_regs regs = {
 		.eax = I8K_SMM_GET_NOM_SPEED,
 		.ebx = fan | (speed << 8),
 	};
 
-	if (data->disallow_fan_support)
+	if (disallow_fan_support)
 		return -EINVAL;
 
-	return i8k_smm(&regs) ? : (regs.eax & 0xffff);
+	return dell_smm_call(data->ops, &regs) ? : (regs.eax & 0xffff);
 }
 
 /*
@@ -300,11 +429,11 @@ static int i8k_enable_fan_auto_mode(const struct dell_smm_data *data, bool enabl
 {
 	struct smm_regs regs = { };
 
-	if (data->disallow_fan_support)
+	if (disallow_fan_support)
 		return -EINVAL;
 
-	regs.eax = enable ? data->auto_fan : data->manual_fan;
-	return i8k_smm(&regs);
+	regs.eax = enable ? auto_fan : manual_fan;
+	return dell_smm_call(data->ops, &regs);
 }
 
 /*
@@ -314,41 +443,41 @@ static int i8k_set_fan(const struct dell_smm_data *data, u8 fan, int speed)
 {
 	struct smm_regs regs = { .eax = I8K_SMM_SET_FAN, };
 
-	if (data->disallow_fan_support)
+	if (disallow_fan_support)
 		return -EINVAL;
 
 	speed = (speed < 0) ? 0 : ((speed > data->i8k_fan_max) ? data->i8k_fan_max : speed);
 	regs.ebx = fan | (speed << 8);
 
-	return i8k_smm(&regs);
+	return dell_smm_call(data->ops, &regs);
 }
 
-static int __init i8k_get_temp_type(u8 sensor)
+static int i8k_get_temp_type(const struct dell_smm_data *data, u8 sensor)
 {
 	struct smm_regs regs = {
 		.eax = I8K_SMM_GET_TEMP_TYPE,
 		.ebx = sensor,
 	};
 
-	return i8k_smm(&regs) ? : regs.eax & 0xff;
+	return dell_smm_call(data->ops, &regs) ? : regs.eax & 0xff;
 }
 
 /*
  * Read the cpu temperature.
  */
-static int _i8k_get_temp(u8 sensor)
+static int _i8k_get_temp(const struct dell_smm_data *data, u8 sensor)
 {
 	struct smm_regs regs = {
 		.eax = I8K_SMM_GET_TEMP,
 		.ebx = sensor,
 	};
 
-	return i8k_smm(&regs) ? : regs.eax & 0xff;
+	return dell_smm_call(data->ops, &regs) ? : regs.eax & 0xff;
 }
 
-static int i8k_get_temp(u8 sensor)
+static int i8k_get_temp(const struct dell_smm_data *data, u8 sensor)
 {
-	int temp = _i8k_get_temp(sensor);
+	int temp = _i8k_get_temp(data, sensor);
 
 	/*
 	 * Sometimes the temperature sensor returns 0x99, which is out of range.
@@ -359,7 +488,7 @@ static int i8k_get_temp(u8 sensor)
 	 */
 	if (temp == 0x99) {
 		msleep(100);
-		temp = _i8k_get_temp(sensor);
+		temp = _i8k_get_temp(data, sensor);
 	}
 	/*
 	 * Return -ENODATA for all invalid temperatures.
@@ -375,12 +504,12 @@ static int i8k_get_temp(u8 sensor)
 	return temp;
 }
 
-static int __init i8k_get_dell_signature(int req_fn)
+static int dell_smm_get_signature(const struct dell_smm_ops *ops, int req_fn)
 {
 	struct smm_regs regs = { .eax = req_fn, };
 	int rc;
 
-	rc = i8k_smm(&regs);
+	rc = dell_smm_call(ops, &regs);
 	if (rc < 0)
 		return rc;
 
@@ -392,12 +521,12 @@ static int __init i8k_get_dell_signature(int req_fn)
 /*
  * Read the Fn key status.
  */
-static int i8k_get_fn_status(void)
+static int i8k_get_fn_status(const struct dell_smm_data *data)
 {
 	struct smm_regs regs = { .eax = I8K_SMM_FN_STATUS, };
 	int rc;
 
-	rc = i8k_smm(&regs);
+	rc = dell_smm_call(data->ops, &regs);
 	if (rc < 0)
 		return rc;
 
@@ -416,12 +545,12 @@ static int i8k_get_fn_status(void)
 /*
  * Read the power status.
  */
-static int i8k_get_power_status(void)
+static int i8k_get_power_status(const struct dell_smm_data *data)
 {
 	struct smm_regs regs = { .eax = I8K_SMM_POWER_STATUS, };
 	int rc;
 
-	rc = i8k_smm(&regs);
+	rc = dell_smm_call(data->ops, &regs);
 	if (rc < 0)
 		return rc;
 
@@ -464,15 +593,15 @@ static long i8k_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
 
 		return 0;
 	case I8K_FN_STATUS:
-		val = i8k_get_fn_status();
+		val = i8k_get_fn_status(data);
 		break;
 
 	case I8K_POWER_STATUS:
-		val = i8k_get_power_status();
+		val = i8k_get_power_status(data);
 		break;
 
 	case I8K_GET_TEMP:
-		val = i8k_get_temp(0);
+		val = i8k_get_temp(data, 0);
 		break;
 
 	case I8K_GET_SPEED:
@@ -539,14 +668,14 @@ static int i8k_proc_show(struct seq_file *seq, void *offset)
 	int fn_key, cpu_temp, ac_power;
 	int left_fan, right_fan, left_speed, right_speed;
 
-	cpu_temp	= i8k_get_temp(0);				/* 11100 µs */
+	cpu_temp	= i8k_get_temp(data, 0);			/* 11100 µs */
 	left_fan	= i8k_get_fan_status(data, I8K_FAN_LEFT);	/*   580 µs */
 	right_fan	= i8k_get_fan_status(data, I8K_FAN_RIGHT);	/*   580 µs */
 	left_speed	= i8k_get_fan_speed(data, I8K_FAN_LEFT);	/*   580 µs */
 	right_speed	= i8k_get_fan_speed(data, I8K_FAN_RIGHT);	/*   580 µs */
-	fn_key		= i8k_get_fn_status();				/*   750 µs */
+	fn_key		= i8k_get_fn_status(data);			/*   750 µs */
 	if (power_status)
-		ac_power = i8k_get_power_status();			/* 14700 µs */
+		ac_power = i8k_get_power_status(data);			/* 14700 µs */
 	else
 		ac_power = -1;
 
@@ -597,6 +726,11 @@ static void __init i8k_init_procfs(struct device *dev)
 {
 	struct dell_smm_data *data = dev_get_drvdata(dev);
 
+	strscpy(data->bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
+		sizeof(data->bios_version));
+	strscpy(data->bios_machineid, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
+		sizeof(data->bios_machineid));
+
 	/* Only register exit function if creation was successful */
 	if (proc_create_data("i8k", 0, NULL, &i8k_proc_ops, data))
 		devm_add_action_or_reset(dev, i8k_exit_procfs, NULL);
@@ -665,7 +799,7 @@ static umode_t dell_smm_is_visible(const void *drvdata, enum hwmon_sensor_types
 		switch (attr) {
 		case hwmon_temp_input:
 			/* _i8k_get_temp() is fine since we do not care about the actual value */
-			if (data->temp_type[channel] >= 0 || _i8k_get_temp(channel) >= 0)
+			if (data->temp_type[channel] >= 0 || _i8k_get_temp(data, channel) >= 0)
 				return 0444;
 
 			break;
@@ -679,7 +813,7 @@ static umode_t dell_smm_is_visible(const void *drvdata, enum hwmon_sensor_types
 		}
 		break;
 	case hwmon_fan:
-		if (data->disallow_fan_support)
+		if (disallow_fan_support)
 			break;
 
 		switch (attr) {
@@ -689,7 +823,7 @@ static umode_t dell_smm_is_visible(const void *drvdata, enum hwmon_sensor_types
 
 			break;
 		case hwmon_fan_label:
-			if (data->fan[channel] && !data->disallow_fan_type_call)
+			if (data->fan[channel] && !disallow_fan_type_call)
 				return 0444;
 
 			break;
@@ -705,7 +839,7 @@ static umode_t dell_smm_is_visible(const void *drvdata, enum hwmon_sensor_types
 		}
 		break;
 	case hwmon_pwm:
-		if (data->disallow_fan_support)
+		if (disallow_fan_support)
 			break;
 
 		switch (attr) {
@@ -715,7 +849,7 @@ static umode_t dell_smm_is_visible(const void *drvdata, enum hwmon_sensor_types
 
 			break;
 		case hwmon_pwm_enable:
-			if (data->auto_fan)
+			if (auto_fan)
 				/*
 				 * There is no command for retrieve the current status
 				 * from BIOS, and userspace/firmware itself can change
@@ -747,7 +881,7 @@ static int dell_smm_read(struct device *dev, enum hwmon_sensor_types type, u32 a
 	case hwmon_temp:
 		switch (attr) {
 		case hwmon_temp_input:
-			ret = i8k_get_temp(channel);
+			ret = i8k_get_temp(data, channel);
 			if (ret < 0)
 				return ret;
 
@@ -955,7 +1089,7 @@ static const struct hwmon_chip_info dell_smm_chip_info = {
 	.info = dell_smm_info,
 };
 
-static int __init dell_smm_init_cdev(struct device *dev, u8 fan_num)
+static int dell_smm_init_cdev(struct device *dev, u8 fan_num)
 {
 	struct dell_smm_data *data = dev_get_drvdata(dev);
 	struct thermal_cooling_device *cdev;
@@ -986,7 +1120,7 @@ static int __init dell_smm_init_cdev(struct device *dev, u8 fan_num)
 	return ret;
 }
 
-static int __init dell_smm_init_hwmon(struct device *dev)
+static int dell_smm_init_hwmon(struct device *dev)
 {
 	struct dell_smm_data *data = dev_get_drvdata(dev);
 	struct device *dell_smm_hwmon_dev;
@@ -994,7 +1128,7 @@ static int __init dell_smm_init_hwmon(struct device *dev)
 	u8 i;
 
 	for (i = 0; i < DELL_SMM_NO_TEMP; i++) {
-		data->temp_type[i] = i8k_get_temp_type(i);
+		data->temp_type[i] = i8k_get_temp_type(data, i);
 		if (data->temp_type[i] < 0)
 			continue;
 
@@ -1052,41 +1186,25 @@ static int __init dell_smm_init_hwmon(struct device *dev)
 	return PTR_ERR_OR_ZERO(dell_smm_hwmon_dev);
 }
 
-struct i8k_config_data {
-	uint fan_mult;
-	uint fan_max;
-};
+static int dell_smm_init_data(struct device *dev, const struct dell_smm_ops *ops)
+{
+	struct dell_smm_data *data;
 
-enum i8k_configs {
-	DELL_LATITUDE_D520,
-	DELL_PRECISION_490,
-	DELL_STUDIO,
-	DELL_XPS,
-};
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-/*
- * Only use for machines which need some special configuration
- * in order to work correctly (e.g. if autoconfig fails on this machines).
- */
+	mutex_init(&data->i8k_mutex);
+	dev_set_drvdata(dev, data);
 
-static const struct i8k_config_data i8k_config_data[] __initconst = {
-	[DELL_LATITUDE_D520] = {
-		.fan_mult = 1,
-		.fan_max = I8K_FAN_TURBO,
-	},
-	[DELL_PRECISION_490] = {
-		.fan_mult = 1,
-		.fan_max = I8K_FAN_TURBO,
-	},
-	[DELL_STUDIO] = {
-		.fan_mult = 1,
-		.fan_max = I8K_FAN_HIGH,
-	},
-	[DELL_XPS] = {
-		.fan_mult = 1,
-		.fan_max = I8K_FAN_HIGH,
-	},
-};
+	data->ops = ops;
+	/* All options must not be 0 */
+	data->i8k_fan_mult = fan_mult ? : I8K_FAN_MULT;
+	data->i8k_fan_max = fan_max ? : I8K_FAN_HIGH;
+	data->i8k_pwm_mult = DIV_ROUND_UP(255, data->i8k_fan_max);
+
+	return 0;
+}
 
 static const struct dmi_system_id i8k_dmi_table[] __initconst = {
 	{
@@ -1118,14 +1236,6 @@ static const struct dmi_system_id i8k_dmi_table[] __initconst = {
 		},
 	},
 	{
-		.ident = "Dell Latitude D520",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D520"),
-		},
-		.driver_data = (void *)&i8k_config_data[DELL_LATITUDE_D520],
-	},
-	{
 		.ident = "Dell Latitude 2",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
@@ -1147,15 +1257,6 @@ static const struct dmi_system_id i8k_dmi_table[] __initconst = {
 		},
 	},
 	{
-		.ident = "Dell Precision 490",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME,
-				  "Precision WorkStation 490"),
-		},
-		.driver_data = (void *)&i8k_config_data[DELL_PRECISION_490],
-	},
-	{
 		.ident = "Dell Precision",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
@@ -1175,7 +1276,6 @@ static const struct dmi_system_id i8k_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Studio"),
 		},
-		.driver_data = (void *)&i8k_config_data[DELL_STUDIO],
 	},
 	{
 		.ident = "Dell XPS M140",
@@ -1183,7 +1283,6 @@ static const struct dmi_system_id i8k_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "MXC051"),
 		},
-		.driver_data = (void *)&i8k_config_data[DELL_XPS],
 	},
 	{
 		.ident = "Dell XPS",
@@ -1198,6 +1297,78 @@ static const struct dmi_system_id i8k_dmi_table[] __initconst = {
 MODULE_DEVICE_TABLE(dmi, i8k_dmi_table);
 
 /*
+ * Only use for machines which need some special configuration
+ * in order to work correctly (e.g. if autoconfig fails on this machines).
+ */
+struct i8k_config_data {
+	uint fan_mult;
+	uint fan_max;
+};
+
+enum i8k_configs {
+	DELL_LATITUDE_D520,
+	DELL_PRECISION_490,
+	DELL_STUDIO,
+	DELL_XPS,
+};
+
+static const struct i8k_config_data i8k_config_data[] __initconst = {
+	[DELL_LATITUDE_D520] = {
+		.fan_mult = 1,
+		.fan_max = I8K_FAN_TURBO,
+	},
+	[DELL_PRECISION_490] = {
+		.fan_mult = 1,
+		.fan_max = I8K_FAN_TURBO,
+	},
+	[DELL_STUDIO] = {
+		.fan_mult = 1,
+		.fan_max = I8K_FAN_HIGH,
+	},
+	[DELL_XPS] = {
+		.fan_mult = 1,
+		.fan_max = I8K_FAN_HIGH,
+	},
+};
+
+static const struct dmi_system_id i8k_config_dmi_table[] __initconst = {
+	{
+		.ident = "Dell Latitude D520",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D520"),
+		},
+		.driver_data = (void *)&i8k_config_data[DELL_LATITUDE_D520],
+	},
+	{
+		.ident = "Dell Precision 490",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME,
+				  "Precision WorkStation 490"),
+		},
+		.driver_data = (void *)&i8k_config_data[DELL_PRECISION_490],
+	},
+	{
+		.ident = "Dell Studio",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Studio"),
+		},
+		.driver_data = (void *)&i8k_config_data[DELL_STUDIO],
+	},
+	{
+		.ident = "Dell XPS M140",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MXC051"),
+		},
+		.driver_data = (void *)&i8k_config_data[DELL_XPS],
+	},
+	{ }
+};
+
+/*
  * On some machines once I8K_SMM_GET_FAN_TYPE is issued then CPU fan speed
  * randomly going up and down due to bug in Dell SMM or BIOS. Here is blacklist
  * of affected Dell machines for which we disallow I8K_SMM_GET_FAN_TYPE call.
@@ -1338,119 +1509,174 @@ static const struct dmi_system_id i8k_whitelist_fan_control[] __initconst = {
 		},
 		.driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
 	},
+	{
+		.ident = "Dell Optiplex 7000",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "OptiPlex 7000"),
+		},
+		.driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
+	},
 	{ }
 };
 
+/*
+ * Legacy SMM backend driver.
+ */
 static int __init dell_smm_probe(struct platform_device *pdev)
 {
-	struct dell_smm_data *data;
-	const struct dmi_system_id *id, *fan_control;
 	int ret;
 
-	data = devm_kzalloc(&pdev->dev, sizeof(struct dell_smm_data), GFP_KERNEL);
-	if (!data)
+	ret = dell_smm_init_data(&pdev->dev, &i8k_smm_ops);
+	if (ret < 0)
+		return ret;
+
+	ret = dell_smm_init_hwmon(&pdev->dev);
+	if (ret)
+		return ret;
+
+	i8k_init_procfs(&pdev->dev);
+
+	return 0;
+}
+
+static struct platform_driver dell_smm_driver = {
+	.driver		= {
+		.name	= KBUILD_MODNAME,
+	},
+};
+
+static struct platform_device *dell_smm_device;
+
+/*
+ * WMI SMM backend driver.
+ */
+static int dell_smm_wmi_probe(struct wmi_device *wdev, const void *context)
+{
+	struct dell_smm_ops *ops;
+	int ret;
+
+	ops = devm_kzalloc(&wdev->dev, sizeof(*ops), GFP_KERNEL);
+	if (!ops)
 		return -ENOMEM;
 
-	mutex_init(&data->i8k_mutex);
-	platform_set_drvdata(pdev, data);
+	ops->smm_call = wmi_smm_call;
+	ops->smm_dev = &wdev->dev;
+
+	if (dell_smm_get_signature(ops, I8K_SMM_GET_DELL_SIG1) &&
+	    dell_smm_get_signature(ops, I8K_SMM_GET_DELL_SIG2))
+		return -ENODEV;
+
+	ret = dell_smm_init_data(&wdev->dev, ops);
+	if (ret < 0)
+		return ret;
+
+	return dell_smm_init_hwmon(&wdev->dev);
+}
+
+static const struct wmi_device_id dell_smm_wmi_id_table[] = {
+	{ DELL_SMM_WMI_GUID, NULL },
+	{ }
+};
+MODULE_DEVICE_TABLE(wmi, dell_smm_wmi_id_table);
+
+static struct wmi_driver dell_smm_wmi_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
+	},
+	.id_table = dell_smm_wmi_id_table,
+	.probe = dell_smm_wmi_probe,
+};
+
+/*
+ * Probe for the presence of a supported laptop.
+ */
+static void __init dell_smm_init_dmi(void)
+{
+	struct i8k_fan_control_data *control;
+	struct i8k_config_data *config;
+	const struct dmi_system_id *id;
 
 	if (dmi_check_system(i8k_blacklist_fan_support_dmi_table)) {
 		if (!force) {
-			dev_notice(&pdev->dev, "Disabling fan support due to BIOS bugs\n");
-			data->disallow_fan_support = true;
+			pr_notice("Disabling fan support due to BIOS bugs\n");
+			disallow_fan_support = true;
 		} else {
-			dev_warn(&pdev->dev, "Enabling fan support despite BIOS bugs\n");
+			pr_warn("Enabling fan support despite BIOS bugs\n");
 		}
 	}
 
 	if (dmi_check_system(i8k_blacklist_fan_type_dmi_table)) {
 		if (!force) {
-			dev_notice(&pdev->dev, "Disabling fan type call due to BIOS bugs\n");
-			data->disallow_fan_type_call = true;
+			pr_notice("Disabling fan type call due to BIOS bugs\n");
+			disallow_fan_type_call = true;
 		} else {
-			dev_warn(&pdev->dev, "Enabling fan type call despite BIOS bugs\n");
+			pr_warn("Enabling fan type call despite BIOS bugs\n");
 		}
 	}
 
-	strscpy(data->bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
-		sizeof(data->bios_version));
-	strscpy(data->bios_machineid, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
-		sizeof(data->bios_machineid));
-
 	/*
-	 * Set fan multiplier and maximal fan speed from dmi config
-	 * Values specified in module parameters override values from dmi
+	 * Set fan multiplier and maximal fan speed from DMI config.
+	 * Values specified in module parameters override values from DMI.
 	 */
-	id = dmi_first_match(i8k_dmi_table);
+	id = dmi_first_match(i8k_config_dmi_table);
 	if (id && id->driver_data) {
-		const struct i8k_config_data *conf = id->driver_data;
+		config = id->driver_data;
+		if (!fan_mult && config->fan_mult)
+			fan_mult = config->fan_mult;
 
-		if (!fan_mult && conf->fan_mult)
-			fan_mult = conf->fan_mult;
-
-		if (!fan_max && conf->fan_max)
-			fan_max = conf->fan_max;
+		if (!fan_max && config->fan_max)
+			fan_max = config->fan_max;
 	}
 
-	/* All options must not be 0 */
-	data->i8k_fan_mult = fan_mult ? : I8K_FAN_MULT;
-	data->i8k_fan_max = fan_max ? : I8K_FAN_HIGH;
-	data->i8k_pwm_mult = DIV_ROUND_UP(255, data->i8k_fan_max);
-
-	fan_control = dmi_first_match(i8k_whitelist_fan_control);
-	if (fan_control && fan_control->driver_data) {
-		const struct i8k_fan_control_data *control = fan_control->driver_data;
+	id = dmi_first_match(i8k_whitelist_fan_control);
+	if (id && id->driver_data) {
+		control = id->driver_data;
+		manual_fan = control->manual_fan;
+		auto_fan = control->auto_fan;
 
-		data->manual_fan = control->manual_fan;
-		data->auto_fan = control->auto_fan;
-		dev_info(&pdev->dev, "enabling support for setting automatic/manual fan control\n");
+		pr_info("Enabling support for setting automatic/manual fan control\n");
 	}
-
-	ret = dell_smm_init_hwmon(&pdev->dev);
-	if (ret)
-		return ret;
-
-	i8k_init_procfs(&pdev->dev);
-
-	return 0;
 }
 
-static struct platform_driver dell_smm_driver = {
-	.driver		= {
-		.name	= KBUILD_MODNAME,
-	},
-};
-
-static struct platform_device *dell_smm_device;
-
-/*
- * Probe for the presence of a supported laptop.
- */
-static int __init i8k_init(void)
+static int __init dell_smm_legacy_check(void)
 {
-	/*
-	 * Get DMI information
-	 */
 	if (!dmi_check_system(i8k_dmi_table)) {
 		if (!ignore_dmi && !force)
 			return -ENODEV;
 
-		pr_info("not running on a supported Dell system.\n");
+		pr_info("Probing for legacy SMM handler on unsupported machine\n");
 		pr_info("vendor=%s, model=%s, version=%s\n",
 			i8k_get_dmi_data(DMI_SYS_VENDOR),
 			i8k_get_dmi_data(DMI_PRODUCT_NAME),
 			i8k_get_dmi_data(DMI_BIOS_VERSION));
 	}
 
-	/*
-	 * Get SMM Dell signature
-	 */
-	if (i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG1) &&
-	    i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG2)) {
+	if (dell_smm_get_signature(&i8k_smm_ops, I8K_SMM_GET_DELL_SIG1) &&
+	    dell_smm_get_signature(&i8k_smm_ops, I8K_SMM_GET_DELL_SIG2)) {
 		if (!force)
 			return -ENODEV;
 
-		pr_err("Unable to get Dell SMM signature\n");
+		pr_warn("Forcing legacy SMM calls on a possibly incompatible machine\n");
+	}
+
+	return 0;
+}
+
+static int __init i8k_init(void)
+{
+	int ret;
+
+	dell_smm_init_dmi();
+
+	ret = dell_smm_legacy_check();
+	if (ret < 0) {
+		/*
+		 * On modern machines, SMM communication happens over WMI, meaning
+		 * the SMM handler might not react to legacy SMM calls.
+		 */
+		return wmi_driver_register(&dell_smm_wmi_driver);
 	}
 
 	dell_smm_device = platform_create_bundle(&dell_smm_driver, dell_smm_probe, NULL, 0, NULL,
@@ -1461,8 +1687,12 @@ static int __init i8k_init(void)
 
 static void __exit i8k_exit(void)
 {
-	platform_device_unregister(dell_smm_device);
-	platform_driver_unregister(&dell_smm_driver);
+	if (dell_smm_device) {
+		platform_device_unregister(dell_smm_device);
+		platform_driver_unregister(&dell_smm_driver);
+	} else {
+		wmi_driver_unregister(&dell_smm_wmi_driver);
+	}
 }
 
 module_init(i8k_init);
diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c
index bb7c859e79..1332e4ac07 100644
--- a/drivers/hwmon/emc1403.c
+++ b/drivers/hwmon/emc1403.c
@@ -346,6 +346,9 @@ static int emc1403_detect(struct i2c_client *client,
 	case 0x27:
 		strscpy(info->type, "emc1424", I2C_NAME_SIZE);
 		break;
+	case 0x60:
+		strscpy(info->type, "emc1442", I2C_NAME_SIZE);
+		break;
 	default:
 		return -ENODEV;
 	}
@@ -430,7 +433,7 @@ static int emc1403_probe(struct i2c_client *client)
 }
 
 static const unsigned short emc1403_address_list[] = {
-	0x18, 0x1c, 0x29, 0x4c, 0x4d, 0x5c, I2C_CLIENT_END
+	0x18, 0x1c, 0x29, 0x3c, 0x4c, 0x4d, 0x5c, I2C_CLIENT_END
 };
 
 /* Last digit of chip name indicates number of channels */
@@ -444,6 +447,7 @@ static const struct i2c_device_id emc1403_idtable[] = {
 	{ "emc1422", emc1402 },
 	{ "emc1423", emc1403 },
 	{ "emc1424", emc1404 },
+	{ "emc1442", emc1402 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, emc1403_idtable);
diff --git a/drivers/hwmon/gigabyte_waterforce.c b/drivers/hwmon/gigabyte_waterforce.c
new file mode 100644
index 0000000000..8129d7b3ce
--- /dev/null
+++ b/drivers/hwmon/gigabyte_waterforce.c
@@ -0,0 +1,430 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * hwmon driver for Gigabyte AORUS Waterforce AIO CPU coolers: X240, X280 and X360.
+ *
+ * Copyright 2023 Aleksa Savic <savicaleksa83@gmail.com>
+ */
+
+#include <linux/debugfs.h>
+#include <linux/hid.h>
+#include <linux/hwmon.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <asm/unaligned.h>
+
+#define DRIVER_NAME	"gigabyte_waterforce"
+
+#define USB_VENDOR_ID_GIGABYTE		0x1044
+#define USB_PRODUCT_ID_WATERFORCE	0x7a4d	/* Gigabyte AORUS WATERFORCE X240, X280 and X360 */
+
+#define STATUS_VALIDITY		(2 * 1000)	/* ms */
+#define MAX_REPORT_LENGTH	6144
+
+#define WATERFORCE_TEMP_SENSOR	0xD
+#define WATERFORCE_FAN_SPEED	0x02
+#define WATERFORCE_PUMP_SPEED	0x05
+#define WATERFORCE_FAN_DUTY	0x08
+#define WATERFORCE_PUMP_DUTY	0x09
+
+/* Control commands, inner offsets and lengths */
+static const u8 get_status_cmd[] = { 0x99, 0xDA };
+
+#define FIRMWARE_VER_START_OFFSET_1	2
+#define FIRMWARE_VER_START_OFFSET_2	3
+static const u8 get_firmware_ver_cmd[] = { 0x99, 0xD6 };
+
+/* Command lengths */
+#define GET_STATUS_CMD_LENGTH		2
+#define GET_FIRMWARE_VER_CMD_LENGTH	2
+
+static const char *const waterforce_temp_label[] = {
+	"Coolant temp"
+};
+
+static const char *const waterforce_speed_label[] = {
+	"Fan speed",
+	"Pump speed"
+};
+
+struct waterforce_data {
+	struct hid_device *hdev;
+	struct device *hwmon_dev;
+	struct dentry *debugfs;
+	/* For locking access to buffer */
+	struct mutex buffer_lock;
+	/* For queueing multiple readers */
+	struct mutex status_report_request_mutex;
+	/* For reinitializing the completion below */
+	spinlock_t status_report_request_lock;
+	struct completion status_report_received;
+	struct completion fw_version_processed;
+
+	/* Sensor data */
+	s32 temp_input[1];
+	u16 speed_input[2];	/* Fan and pump speed in RPM */
+	u8 duty_input[2];	/* Fan and pump duty in 0-100% */
+
+	u8 *buffer;
+	int firmware_version;
+	unsigned long updated;	/* jiffies */
+};
+
+static umode_t waterforce_is_visible(const void *data,
+				     enum hwmon_sensor_types type, u32 attr, int channel)
+{
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_label:
+		case hwmon_temp_input:
+			return 0444;
+		default:
+			break;
+		}
+		break;
+	case hwmon_fan:
+		switch (attr) {
+		case hwmon_fan_label:
+		case hwmon_fan_input:
+			return 0444;
+		default:
+			break;
+		}
+		break;
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_input:
+			return 0444;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+/* Writes the command to the device with the rest of the report filled with zeroes */
+static int waterforce_write_expanded(struct waterforce_data *priv, const u8 *cmd, int cmd_length)
+{
+	int ret;
+
+	mutex_lock(&priv->buffer_lock);
+
+	memcpy_and_pad(priv->buffer, MAX_REPORT_LENGTH, cmd, cmd_length, 0x00);
+	ret = hid_hw_output_report(priv->hdev, priv->buffer, MAX_REPORT_LENGTH);
+
+	mutex_unlock(&priv->buffer_lock);
+	return ret;
+}
+
+static int waterforce_get_status(struct waterforce_data *priv)
+{
+	int ret = mutex_lock_interruptible(&priv->status_report_request_mutex);
+
+	if (ret < 0)
+		return ret;
+
+	if (!time_after(jiffies, priv->updated + msecs_to_jiffies(STATUS_VALIDITY))) {
+		/* Data is up to date */
+		goto unlock_and_return;
+	}
+
+	/*
+	 * Disable raw event parsing for a moment to safely reinitialize the
+	 * completion. Reinit is done because hidraw could have triggered
+	 * the raw event parsing and marked the priv->status_report_received
+	 * completion as done.
+	 */
+	spin_lock_bh(&priv->status_report_request_lock);
+	reinit_completion(&priv->status_report_received);
+	spin_unlock_bh(&priv->status_report_request_lock);
+
+	/* Send command for getting status */
+	ret = waterforce_write_expanded(priv, get_status_cmd, GET_STATUS_CMD_LENGTH);
+	if (ret < 0)
+		goto unlock_and_return;
+
+	ret = wait_for_completion_interruptible_timeout(&priv->status_report_received,
+							msecs_to_jiffies(STATUS_VALIDITY));
+	if (ret == 0)
+		ret = -ETIMEDOUT;
+
+unlock_and_return:
+	mutex_unlock(&priv->status_report_request_mutex);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int waterforce_read(struct device *dev, enum hwmon_sensor_types type,
+			   u32 attr, int channel, long *val)
+{
+	struct waterforce_data *priv = dev_get_drvdata(dev);
+	int ret = waterforce_get_status(priv);
+
+	if (ret < 0)
+		return ret;
+
+	switch (type) {
+	case hwmon_temp:
+		*val = priv->temp_input[channel];
+		break;
+	case hwmon_fan:
+		*val = priv->speed_input[channel];
+		break;
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_input:
+			*val = DIV_ROUND_CLOSEST(priv->duty_input[channel] * 255, 100);
+			break;
+		default:
+			return -EOPNOTSUPP;
+		}
+		break;
+	default:
+		return -EOPNOTSUPP;	/* unreachable */
+	}
+
+	return 0;
+}
+
+static int waterforce_read_string(struct device *dev, enum hwmon_sensor_types type,
+				  u32 attr, int channel, const char **str)
+{
+	switch (type) {
+	case hwmon_temp:
+		*str = waterforce_temp_label[channel];
+		break;
+	case hwmon_fan:
+		*str = waterforce_speed_label[channel];
+		break;
+	default:
+		return -EOPNOTSUPP;	/* unreachable */
+	}
+
+	return 0;
+}
+
+static int waterforce_get_fw_ver(struct hid_device *hdev)
+{
+	struct waterforce_data *priv = hid_get_drvdata(hdev);
+	int ret;
+
+	ret = waterforce_write_expanded(priv, get_firmware_ver_cmd, GET_FIRMWARE_VER_CMD_LENGTH);
+	if (ret < 0)
+		return ret;
+
+	ret = wait_for_completion_interruptible_timeout(&priv->fw_version_processed,
+							msecs_to_jiffies(STATUS_VALIDITY));
+	if (ret == 0)
+		return -ETIMEDOUT;
+	else if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static const struct hwmon_ops waterforce_hwmon_ops = {
+	.is_visible = waterforce_is_visible,
+	.read = waterforce_read,
+	.read_string = waterforce_read_string
+};
+
+static const struct hwmon_channel_info *waterforce_info[] = {
+	HWMON_CHANNEL_INFO(temp,
+			   HWMON_T_INPUT | HWMON_T_LABEL),
+	HWMON_CHANNEL_INFO(fan,
+			   HWMON_F_INPUT | HWMON_F_LABEL,
+			   HWMON_F_INPUT | HWMON_F_LABEL),
+	HWMON_CHANNEL_INFO(pwm,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT),
+	NULL
+};
+
+static const struct hwmon_chip_info waterforce_chip_info = {
+	.ops = &waterforce_hwmon_ops,
+	.info = waterforce_info,
+};
+
+static int waterforce_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data,
+				int size)
+{
+	struct waterforce_data *priv = hid_get_drvdata(hdev);
+
+	if (data[0] == get_firmware_ver_cmd[0] && data[1] == get_firmware_ver_cmd[1]) {
+		/* Received a firmware version report */
+		priv->firmware_version =
+		    data[FIRMWARE_VER_START_OFFSET_1] * 10 + data[FIRMWARE_VER_START_OFFSET_2];
+
+		if (!completion_done(&priv->fw_version_processed))
+			complete_all(&priv->fw_version_processed);
+		return 0;
+	}
+
+	if (data[0] != get_status_cmd[0] || data[1] != get_status_cmd[1])
+		return 0;
+
+	priv->temp_input[0] = data[WATERFORCE_TEMP_SENSOR] * 1000;
+	priv->speed_input[0] = get_unaligned_le16(data + WATERFORCE_FAN_SPEED);
+	priv->speed_input[1] = get_unaligned_le16(data + WATERFORCE_PUMP_SPEED);
+	priv->duty_input[0] = data[WATERFORCE_FAN_DUTY];
+	priv->duty_input[1] = data[WATERFORCE_PUMP_DUTY];
+
+	spin_lock(&priv->status_report_request_lock);
+	if (!completion_done(&priv->status_report_received))
+		complete_all(&priv->status_report_received);
+	spin_unlock(&priv->status_report_request_lock);
+
+	priv->updated = jiffies;
+
+	return 0;
+}
+
+static int firmware_version_show(struct seq_file *seqf, void *unused)
+{
+	struct waterforce_data *priv = seqf->private;
+
+	seq_printf(seqf, "%u\n", priv->firmware_version);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(firmware_version);
+
+static void waterforce_debugfs_init(struct waterforce_data *priv)
+{
+	char name[64];
+
+	if (!priv->firmware_version)
+		return;	/* There's nothing to show in debugfs */
+
+	scnprintf(name, sizeof(name), "%s-%s", DRIVER_NAME, dev_name(&priv->hdev->dev));
+
+	priv->debugfs = debugfs_create_dir(name, NULL);
+	debugfs_create_file("firmware_version", 0444, priv->debugfs, priv, &firmware_version_fops);
+}
+
+static int waterforce_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	struct waterforce_data *priv;
+	int ret;
+
+	priv = devm_kzalloc(&hdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->hdev = hdev;
+	hid_set_drvdata(hdev, priv);
+
+	/*
+	 * Initialize priv->updated to STATUS_VALIDITY seconds in the past, making
+	 * the initial empty data invalid for waterforce_read() without the need for
+	 * a special case there.
+	 */
+	priv->updated = jiffies - msecs_to_jiffies(STATUS_VALIDITY);
+
+	ret = hid_parse(hdev);
+	if (ret) {
+		hid_err(hdev, "hid parse failed with %d\n", ret);
+		return ret;
+	}
+
+	/*
+	 * Enable hidraw so existing user-space tools can continue to work.
+	 */
+	ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
+	if (ret) {
+		hid_err(hdev, "hid hw start failed with %d\n", ret);
+		return ret;
+	}
+
+	ret = hid_hw_open(hdev);
+	if (ret) {
+		hid_err(hdev, "hid hw open failed with %d\n", ret);
+		goto fail_and_stop;
+	}
+
+	priv->buffer = devm_kzalloc(&hdev->dev, MAX_REPORT_LENGTH, GFP_KERNEL);
+	if (!priv->buffer) {
+		ret = -ENOMEM;
+		goto fail_and_close;
+	}
+
+	mutex_init(&priv->status_report_request_mutex);
+	mutex_init(&priv->buffer_lock);
+	spin_lock_init(&priv->status_report_request_lock);
+	init_completion(&priv->status_report_received);
+	init_completion(&priv->fw_version_processed);
+
+	hid_device_io_start(hdev);
+	ret = waterforce_get_fw_ver(hdev);
+	if (ret < 0)
+		hid_warn(hdev, "fw version request failed with %d\n", ret);
+
+	priv->hwmon_dev = hwmon_device_register_with_info(&hdev->dev, "waterforce",
+							  priv, &waterforce_chip_info, NULL);
+	if (IS_ERR(priv->hwmon_dev)) {
+		ret = PTR_ERR(priv->hwmon_dev);
+		hid_err(hdev, "hwmon registration failed with %d\n", ret);
+		goto fail_and_close;
+	}
+
+	waterforce_debugfs_init(priv);
+
+	return 0;
+
+fail_and_close:
+	hid_hw_close(hdev);
+fail_and_stop:
+	hid_hw_stop(hdev);
+	return ret;
+}
+
+static void waterforce_remove(struct hid_device *hdev)
+{
+	struct waterforce_data *priv = hid_get_drvdata(hdev);
+
+	debugfs_remove_recursive(priv->debugfs);
+	hwmon_device_unregister(priv->hwmon_dev);
+
+	hid_hw_close(hdev);
+	hid_hw_stop(hdev);
+}
+
+static const struct hid_device_id waterforce_table[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_GIGABYTE, USB_PRODUCT_ID_WATERFORCE) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(hid, waterforce_table);
+
+static struct hid_driver waterforce_driver = {
+	.name = "waterforce",
+	.id_table = waterforce_table,
+	.probe = waterforce_probe,
+	.remove = waterforce_remove,
+	.raw_event = waterforce_raw_event,
+};
+
+static int __init waterforce_init(void)
+{
+	return hid_register_driver(&waterforce_driver);
+}
+
+static void __exit waterforce_exit(void)
+{
+	hid_unregister_driver(&waterforce_driver);
+}
+
+/* When compiled into the kernel, initialize after the HID bus */
+late_initcall(waterforce_init);
+module_exit(waterforce_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Aleksa Savic <savicaleksa83@gmail.com>");
+MODULE_DESCRIPTION("Hwmon driver for Gigabyte AORUS Waterforce AIO coolers");
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index bae0becfa2..8092312c0a 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -455,6 +455,7 @@ static int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 		switch (boot_cpu_data.x86_model) {
 		case 0x0 ... 0x1:	/* Zen3 SP3/TR */
+		case 0x8:		/* Zen3 TR Chagall */
 		case 0x21:		/* Zen3 Ryzen Desktop */
 		case 0x50 ... 0x5f:	/* Green Sardine */
 			data->ccd_offset = 0x154;
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index 5b2ea05c95..e007507185 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -7,11 +7,11 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/jiffies.h>
 #include <linux/i2c.h>
 #include <linux/hwmon.h>
-#include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
 #include <linux/of.h>
 #include <linux/regmap.h>
@@ -25,6 +25,7 @@
 
 enum lm75_type {		/* keep sorted in alphabetical order */
 	adt75,
+	as6200,
 	at30ts74,
 	ds1775,
 	ds75,
@@ -55,6 +56,7 @@ enum lm75_type {		/* keep sorted in alphabetical order */
 
 /**
  * struct lm75_params - lm75 configuration parameters.
+ * @config_reg_16bits:	Configure register size is 2 bytes.
  * @set_mask:		Bits to set in configuration register when configuring
  *			the chip.
  * @clr_mask:		Bits to clear in configuration register when configuring
@@ -75,17 +77,20 @@ enum lm75_type {		/* keep sorted in alphabetical order */
  * @sample_times:	All the possible sample times to be set. Mandatory if
  *			num_sample_times is larger than 1. If set, number of
  *			entries must match num_sample_times.
+ * @alarm:		Alarm bit is supported.
  */
 
 struct lm75_params {
-	u8			set_mask;
-	u8			clr_mask;
+	bool			config_reg_16bits;
+	u16			set_mask;
+	u16			clr_mask;
 	u8			default_resolution;
 	u8			resolution_limits;
 	const u8		*resolutions;
 	unsigned int		default_sample_time;
 	u8			num_sample_times;
 	const unsigned int	*sample_times;
+	bool			alarm;
 };
 
 /* Addresses scanned */
@@ -104,8 +109,8 @@ struct lm75_data {
 	struct i2c_client		*client;
 	struct regmap			*regmap;
 	struct regulator		*vs;
-	u8				orig_conf;
-	u8				current_conf;
+	u16				orig_conf;
+	u16				current_conf;
 	u8				resolution;	/* In bits, 9 to 16 */
 	unsigned int			sample_time;	/* In ms */
 	enum lm75_type			kind;
@@ -128,6 +133,15 @@ static const struct lm75_params device_params[] = {
 		.default_resolution = 12,
 		.default_sample_time = MSEC_PER_SEC / 10,
 	},
+	[as6200] = {
+		.config_reg_16bits = true,
+		.set_mask = 0x94C0,	/* 8 sample/s, 4 CF, positive polarity */
+		.default_resolution = 12,
+		.default_sample_time = 125,
+		.num_sample_times = 4,
+		.sample_times = (unsigned int []){ 125, 250, 1000, 4000 },
+		.alarm = true,
+	},
 	[at30ts74] = {
 		.set_mask = 3 << 5,	/* 12-bit mode*/
 		.default_resolution = 12,
@@ -255,8 +269,9 @@ static const struct lm75_params device_params[] = {
 		.resolutions = (u8 []) {9, 10, 11, 12 },
 	},
 	[tmp112] = {
-		.set_mask = 3 << 5,	/* 8 samples / second */
-		.clr_mask = 1 << 7,	/* no one-shot mode*/
+		.config_reg_16bits = true,
+		.set_mask = 0x60C0,	/* 12-bit mode, 8 samples / second */
+		.clr_mask = 1 << 15,	/* no one-shot mode*/
 		.default_resolution = 12,
 		.default_sample_time = 125,
 		.num_sample_times = 4,
@@ -317,20 +332,23 @@ static inline long lm75_reg_to_mc(s16 temp, u8 resolution)
 	return ((temp >> (16 - resolution)) * 1000) >> (resolution - 8);
 }
 
-static int lm75_write_config(struct lm75_data *data, u8 set_mask,
-			     u8 clr_mask)
+static int lm75_write_config(struct lm75_data *data, u16 set_mask,
+			     u16 clr_mask)
 {
-	u8 value;
+	unsigned int value;
 
-	clr_mask |= LM75_SHUTDOWN;
+	clr_mask |= LM75_SHUTDOWN << (8 * data->params->config_reg_16bits);
 	value = data->current_conf & ~clr_mask;
 	value |= set_mask;
 
 	if (data->current_conf != value) {
 		s32 err;
-
-		err = i2c_smbus_write_byte_data(data->client, LM75_REG_CONF,
-						value);
+		if (data->params->config_reg_16bits)
+			err = regmap_write(data->regmap, LM75_REG_CONF, value);
+		else
+			err = i2c_smbus_write_byte_data(data->client,
+							LM75_REG_CONF,
+							value);
 		if (err)
 			return err;
 		data->current_conf = value;
@@ -338,6 +356,27 @@ static int lm75_write_config(struct lm75_data *data, u8 set_mask,
 	return 0;
 }
 
+static int lm75_read_config(struct lm75_data *data)
+{
+	int ret;
+	unsigned int status;
+
+	if (data->params->config_reg_16bits) {
+		ret = regmap_read(data->regmap, LM75_REG_CONF, &status);
+		return ret ? ret : status;
+	}
+
+	return i2c_smbus_read_byte_data(data->client, LM75_REG_CONF);
+}
+
+static irqreturn_t lm75_alarm_handler(int irq, void *private)
+{
+	struct device *hwmon_dev = private;
+
+	hwmon_notify_event(hwmon_dev, hwmon_temp, hwmon_temp_alarm, 0);
+	return IRQ_HANDLED;
+}
+
 static int lm75_read(struct device *dev, enum hwmon_sensor_types type,
 		     u32 attr, int channel, long *val)
 {
@@ -366,6 +405,9 @@ static int lm75_read(struct device *dev, enum hwmon_sensor_types type,
 		case hwmon_temp_max_hyst:
 			reg = LM75_REG_HYST;
 			break;
+		case hwmon_temp_alarm:
+			reg = LM75_REG_CONF;
+			break;
 		default:
 			return -EINVAL;
 		}
@@ -373,7 +415,17 @@ static int lm75_read(struct device *dev, enum hwmon_sensor_types type,
 		if (err < 0)
 			return err;
 
-		*val = lm75_reg_to_mc(regval, data->resolution);
+		if (attr == hwmon_temp_alarm) {
+			switch (data->kind) {
+			case as6200:
+				*val = (regval >> 5) & 0x1;
+				break;
+			default:
+				return -EINVAL;
+			}
+		} else {
+			*val = lm75_reg_to_mc(regval, data->resolution);
+		}
 		break;
 	default:
 		return -EINVAL;
@@ -436,6 +488,7 @@ static int lm75_update_interval(struct device *dev, long val)
 			data->resolution = data->params->resolutions[index];
 		break;
 	case tmp112:
+	case as6200:
 		err = regmap_read(data->regmap, LM75_REG_CONF, &reg);
 		if (err < 0)
 			return err;
@@ -503,6 +556,10 @@ static umode_t lm75_is_visible(const void *data, enum hwmon_sensor_types type,
 		case hwmon_temp_max:
 		case hwmon_temp_max_hyst:
 			return 0644;
+		case hwmon_temp_alarm:
+			if (config_data->params->alarm)
+				return 0444;
+			break;
 		}
 		break;
 	default:
@@ -515,7 +572,8 @@ static const struct hwmon_channel_info * const lm75_info[] = {
 	HWMON_CHANNEL_INFO(chip,
 			   HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL),
 	HWMON_CHANNEL_INFO(temp,
-			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST),
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST |
+			   HWMON_T_ALARM),
 	NULL
 };
 
@@ -623,7 +681,7 @@ static int lm75_probe(struct i2c_client *client)
 		return err;
 
 	/* Cache original configuration */
-	status = i2c_smbus_read_byte_data(client, LM75_REG_CONF);
+	status = lm75_read_config(data);
 	if (status < 0) {
 		dev_dbg(dev, "Can't read config? %d\n", status);
 		return status;
@@ -646,6 +704,23 @@ static int lm75_probe(struct i2c_client *client)
 	if (IS_ERR(hwmon_dev))
 		return PTR_ERR(hwmon_dev);
 
+	if (client->irq) {
+		if (data->params->alarm) {
+			err = devm_request_threaded_irq(dev,
+							client->irq,
+							NULL,
+							&lm75_alarm_handler,
+							IRQF_ONESHOT,
+							client->name,
+							hwmon_dev);
+			if (err)
+				return err;
+		} else {
+			 /* alarm is only supported for chips with alarm bit */
+			dev_err(dev, "alarm interrupt is not supported\n");
+		}
+	}
+
 	dev_info(dev, "%s: sensor '%s'\n", dev_name(hwmon_dev), client->name);
 
 	return 0;
@@ -653,6 +728,7 @@ static int lm75_probe(struct i2c_client *client)
 
 static const struct i2c_device_id lm75_ids[] = {
 	{ "adt75", adt75, },
+	{ "as6200", as6200, },
 	{ "at30ts74", at30ts74, },
 	{ "ds1775", ds1775, },
 	{ "ds75", ds75, },
@@ -690,6 +766,10 @@ static const struct of_device_id __maybe_unused lm75_of_match[] = {
 		.data = (void *)adt75
 	},
 	{
+		.compatible = "ams,as6200",
+		.data = (void *)as6200
+	},
+	{
 		.compatible = "atmel,at30ts74",
 		.data = (void *)at30ts74
 	},
diff --git a/drivers/hwmon/ltc2991.c b/drivers/hwmon/ltc2991.c
index fc53fdcb2b..80a6e391f2 100644
--- a/drivers/hwmon/ltc2991.c
+++ b/drivers/hwmon/ltc2991.c
@@ -54,7 +54,6 @@
 #define LTC2991_VCC_CH_NR		0
 
 struct ltc2991_state {
-	struct device		*dev;
 	struct regmap		*regmap;
 	u32			r_sense_uohm[LTC2991_MAX_CHANNEL];
 	bool			temp_en[LTC2991_MAX_CHANNEL];
@@ -283,19 +282,19 @@ static const struct regmap_config ltc2991_regmap_config = {
 	.max_register = 0x1D,
 };
 
-static int ltc2991_init(struct ltc2991_state *st)
+static int ltc2991_init(struct ltc2991_state *st, struct device *dev)
 {
 	struct fwnode_handle *child;
 	int ret;
 	u32 val, addr;
 	u8 v5_v8_reg_data = 0, v1_v4_reg_data = 0;
 
-	ret = devm_regulator_get_enable(st->dev, "vcc");
+	ret = devm_regulator_get_enable(dev, "vcc");
 	if (ret)
-		return dev_err_probe(st->dev, ret,
+		return dev_err_probe(dev, ret,
 				     "failed to enable regulator\n");
 
-	device_for_each_child_node(st->dev, child) {
+	device_for_each_child_node(dev, child) {
 		ret = fwnode_property_read_u32(child, "reg", &addr);
 		if (ret < 0) {
 			fwnode_handle_put(child);
@@ -312,7 +311,7 @@ static int ltc2991_init(struct ltc2991_state *st)
 					       &val);
 		if (!ret) {
 			if (!val)
-				return dev_err_probe(st->dev, -EINVAL,
+				return dev_err_probe(dev, -EINVAL,
 						     "shunt resistor value cannot be zero\n");
 
 			st->r_sense_uohm[addr] = val;
@@ -361,18 +360,18 @@ static int ltc2991_init(struct ltc2991_state *st)
 
 	ret = regmap_write(st->regmap, LTC2991_V5_V8_CTRL, v5_v8_reg_data);
 	if (ret)
-		return dev_err_probe(st->dev, ret,
+		return dev_err_probe(dev, ret,
 				     "Error: Failed to set V5-V8 CTRL reg.\n");
 
 	ret = regmap_write(st->regmap, LTC2991_V1_V4_CTRL, v1_v4_reg_data);
 	if (ret)
-		return dev_err_probe(st->dev, ret,
+		return dev_err_probe(dev, ret,
 				     "Error: Failed to set V1-V4 CTRL reg.\n");
 
 	ret = regmap_write(st->regmap, LTC2991_PWM_TH_LSB_T_INT,
 			   LTC2991_REPEAT_ACQ_EN);
 	if (ret)
-		return dev_err_probe(st->dev, ret,
+		return dev_err_probe(dev, ret,
 				     "Error: Failed to set continuous mode.\n");
 
 	/* Enable all channels and trigger conversions */
@@ -392,12 +391,11 @@ static int ltc2991_i2c_probe(struct i2c_client *client)
 	if (!st)
 		return -ENOMEM;
 
-	st->dev = &client->dev;
 	st->regmap = devm_regmap_init_i2c(client, &ltc2991_regmap_config);
 	if (IS_ERR(st->regmap))
 		return PTR_ERR(st->regmap);
 
-	ret = ltc2991_init(st);
+	ret = ltc2991_init(st, &client->dev);
 	if (ret)
 		return ret;
 
diff --git a/drivers/hwmon/max31827.c b/drivers/hwmon/max31827.c
index a1ce651456..4a8c3e37c5 100644
--- a/drivers/hwmon/max31827.c
+++ b/drivers/hwmon/max31827.c
@@ -11,6 +11,7 @@
 #include <linux/hwmon.h>
 #include <linux/i2c.h>
 #include <linux/mutex.h>
+#include <linux/of_device.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 
@@ -23,15 +24,30 @@
 
 #define MAX31827_CONFIGURATION_1SHOT_MASK	BIT(0)
 #define MAX31827_CONFIGURATION_CNV_RATE_MASK	GENMASK(3, 1)
+#define MAX31827_CONFIGURATION_TIMEOUT_MASK	BIT(5)
+#define MAX31827_CONFIGURATION_RESOLUTION_MASK	GENMASK(7, 6)
+#define MAX31827_CONFIGURATION_ALRM_POL_MASK	BIT(8)
+#define MAX31827_CONFIGURATION_COMP_INT_MASK	BIT(9)
+#define MAX31827_CONFIGURATION_FLT_Q_MASK	GENMASK(11, 10)
 #define MAX31827_CONFIGURATION_U_TEMP_STAT_MASK	BIT(14)
 #define MAX31827_CONFIGURATION_O_TEMP_STAT_MASK	BIT(15)
 
+#define MAX31827_ALRM_POL_LOW	0x0
+#define MAX31827_ALRM_POL_HIGH	0x1
+#define MAX31827_FLT_Q_1	0x0
+#define MAX31827_FLT_Q_4	0x2
+
+#define MAX31827_8_BIT_CNV_TIME		9
+#define MAX31827_9_BIT_CNV_TIME		18
+#define MAX31827_10_BIT_CNV_TIME	35
 #define MAX31827_12_BIT_CNV_TIME	140
 
 #define MAX31827_16_BIT_TO_M_DGR(x)	(sign_extend32(x, 15) * 1000 / 16)
 #define MAX31827_M_DGR_TO_16_BIT(x)	(((x) << 4) / 1000)
 #define MAX31827_DEVICE_ENABLE(x)	((x) ? 0xA : 0x0)
 
+enum chips { max31827 = 1, max31828, max31829 };
+
 enum max31827_cnv {
 	MAX31827_CNV_1_DIV_64_HZ = 1,
 	MAX31827_CNV_1_DIV_32_HZ,
@@ -52,6 +68,27 @@ static const u16 max31827_conversions[] = {
 	[MAX31827_CNV_8_HZ] = 125,
 };
 
+enum max31827_resolution {
+	MAX31827_RES_8_BIT = 0,
+	MAX31827_RES_9_BIT,
+	MAX31827_RES_10_BIT,
+	MAX31827_RES_12_BIT,
+};
+
+static const u16 max31827_resolutions[] = {
+	[MAX31827_RES_8_BIT] = 1000,
+	[MAX31827_RES_9_BIT] = 500,
+	[MAX31827_RES_10_BIT] = 250,
+	[MAX31827_RES_12_BIT] = 62,
+};
+
+static const u16 max31827_conv_times[] = {
+	[MAX31827_RES_8_BIT] = MAX31827_8_BIT_CNV_TIME,
+	[MAX31827_RES_9_BIT] = MAX31827_9_BIT_CNV_TIME,
+	[MAX31827_RES_10_BIT] = MAX31827_10_BIT_CNV_TIME,
+	[MAX31827_RES_12_BIT] = MAX31827_12_BIT_CNV_TIME,
+};
+
 struct max31827_state {
 	/*
 	 * Prevent simultaneous access to the i2c client.
@@ -59,6 +96,8 @@ struct max31827_state {
 	struct mutex lock;
 	struct regmap *regmap;
 	bool enable;
+	unsigned int resolution;
+	unsigned int update_interval;
 };
 
 static const struct regmap_config max31827_regmap = {
@@ -68,16 +107,16 @@ static const struct regmap_config max31827_regmap = {
 };
 
 static int shutdown_write(struct max31827_state *st, unsigned int reg,
-			  unsigned int val)
+			  unsigned int mask, unsigned int val)
 {
 	unsigned int cfg;
 	unsigned int cnv_rate;
 	int ret;
 
 	/*
-	 * Before the Temperature Threshold Alarm and Alarm Hysteresis Threshold
-	 * register values are changed over I2C, the part must be in shutdown
-	 * mode.
+	 * Before the Temperature Threshold Alarm, Alarm Hysteresis Threshold
+	 * and Resolution bits from Configuration register are changed over I2C,
+	 * the part must be in shutdown mode.
 	 *
 	 * Mutex is used to ensure, that some other process doesn't change the
 	 * configuration register.
@@ -85,7 +124,10 @@ static int shutdown_write(struct max31827_state *st, unsigned int reg,
 	mutex_lock(&st->lock);
 
 	if (!st->enable) {
-		ret = regmap_write(st->regmap, reg, val);
+		if (!mask)
+			ret = regmap_write(st->regmap, reg, val);
+		else
+			ret = regmap_update_bits(st->regmap, reg, mask, val);
 		goto unlock;
 	}
 
@@ -100,7 +142,11 @@ static int shutdown_write(struct max31827_state *st, unsigned int reg,
 	if (ret)
 		goto unlock;
 
-	ret = regmap_write(st->regmap, reg, val);
+	if (!mask)
+		ret = regmap_write(st->regmap, reg, val);
+	else
+		ret = regmap_update_bits(st->regmap, reg, mask, val);
+
 	if (ret)
 		goto unlock;
 
@@ -118,7 +164,7 @@ static int write_alarm_val(struct max31827_state *st, unsigned int reg,
 {
 	val = MAX31827_M_DGR_TO_16_BIT(val);
 
-	return shutdown_write(st, reg, val);
+	return shutdown_write(st, reg, 0, val);
 }
 
 static umode_t max31827_is_visible(const void *state,
@@ -188,9 +234,18 @@ static int max31827_read(struct device *dev, enum hwmon_sensor_types type,
 					mutex_unlock(&st->lock);
 					return ret;
 				}
-
-				msleep(MAX31827_12_BIT_CNV_TIME);
+				msleep(max31827_conv_times[st->resolution]);
 			}
+
+			/*
+			 * For 12-bit resolution the conversion time is 140 ms,
+			 * thus an additional 15 ms is needed to complete the
+			 * conversion: 125 ms + 15 ms = 140 ms
+			 */
+			if (max31827_resolutions[st->resolution] == 12 &&
+			    st->update_interval == 125)
+				usleep_range(15000, 20000);
+
 			ret = regmap_read(st->regmap, MAX31827_T_REG, &uval);
 
 			mutex_unlock(&st->lock);
@@ -341,17 +396,20 @@ static int max31827_write(struct device *dev, enum hwmon_sensor_types type,
 			       val < max31827_conversions[res])
 				res++;
 
-			if (res == ARRAY_SIZE(max31827_conversions) ||
-			    val != max31827_conversions[res])
-				return -EINVAL;
+			if (res == ARRAY_SIZE(max31827_conversions))
+				res = ARRAY_SIZE(max31827_conversions) - 1;
 
 			res = FIELD_PREP(MAX31827_CONFIGURATION_CNV_RATE_MASK,
 					 res);
 
-			return regmap_update_bits(st->regmap,
-						  MAX31827_CONFIGURATION_REG,
-						  MAX31827_CONFIGURATION_CNV_RATE_MASK,
-						  res);
+			ret = regmap_update_bits(st->regmap,
+						 MAX31827_CONFIGURATION_REG,
+						 MAX31827_CONFIGURATION_CNV_RATE_MASK,
+						 res);
+			if (ret)
+				return ret;
+
+			st->update_interval = val;
 		}
 		break;
 
@@ -359,17 +417,165 @@ static int max31827_write(struct device *dev, enum hwmon_sensor_types type,
 		return -EOPNOTSUPP;
 	}
 
-	return -EOPNOTSUPP;
+	return 0;
+}
+
+static ssize_t temp1_resolution_show(struct device *dev,
+				     struct device_attribute *devattr,
+				     char *buf)
+{
+	struct max31827_state *st = dev_get_drvdata(dev);
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(st->regmap, MAX31827_CONFIGURATION_REG, &val);
+	if (ret)
+		return ret;
+
+	val = FIELD_GET(MAX31827_CONFIGURATION_RESOLUTION_MASK, val);
+
+	return scnprintf(buf, PAGE_SIZE, "%u\n", max31827_resolutions[val]);
 }
 
-static int max31827_init_client(struct max31827_state *st)
+static ssize_t temp1_resolution_store(struct device *dev,
+				      struct device_attribute *devattr,
+				      const char *buf, size_t count)
 {
+	struct max31827_state *st = dev_get_drvdata(dev);
+	unsigned int idx = 0;
+	unsigned int val;
+	int ret;
+
+	ret = kstrtouint(buf, 10, &val);
+	if (ret)
+		return ret;
+
+	/*
+	 * Convert the desired resolution into register
+	 * bits. idx is already initialized with 0.
+	 *
+	 * This was inspired by lm73 driver.
+	 */
+	while (idx < ARRAY_SIZE(max31827_resolutions) &&
+	       val < max31827_resolutions[idx])
+		idx++;
+
+	if (idx == ARRAY_SIZE(max31827_resolutions))
+		idx = ARRAY_SIZE(max31827_resolutions) - 1;
+
+	st->resolution = idx;
+
+	ret = shutdown_write(st, MAX31827_CONFIGURATION_REG,
+			     MAX31827_CONFIGURATION_RESOLUTION_MASK,
+			     FIELD_PREP(MAX31827_CONFIGURATION_RESOLUTION_MASK,
+					idx));
+
+	return ret ? ret : count;
+}
+
+static DEVICE_ATTR_RW(temp1_resolution);
+
+static struct attribute *max31827_attrs[] = {
+	&dev_attr_temp1_resolution.attr,
+	NULL
+};
+ATTRIBUTE_GROUPS(max31827);
+
+static const struct i2c_device_id max31827_i2c_ids[] = {
+	{ "max31827", max31827 },
+	{ "max31828", max31828 },
+	{ "max31829", max31829 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max31827_i2c_ids);
+
+static int max31827_init_client(struct max31827_state *st,
+				struct device *dev)
+{
+	struct fwnode_handle *fwnode;
+	unsigned int res = 0;
+	u32 data, lsb_idx;
+	enum chips type;
+	bool prop;
+	int ret;
+
+	fwnode = dev_fwnode(dev);
+
 	st->enable = true;
+	res |= MAX31827_DEVICE_ENABLE(1);
 
-	return regmap_update_bits(st->regmap, MAX31827_CONFIGURATION_REG,
-				  MAX31827_CONFIGURATION_1SHOT_MASK |
-					  MAX31827_CONFIGURATION_CNV_RATE_MASK,
-				  MAX31827_DEVICE_ENABLE(1));
+	res |= MAX31827_CONFIGURATION_RESOLUTION_MASK;
+
+	prop = fwnode_property_read_bool(fwnode, "adi,comp-int");
+	res |= FIELD_PREP(MAX31827_CONFIGURATION_COMP_INT_MASK, prop);
+
+	prop = fwnode_property_read_bool(fwnode, "adi,timeout-enable");
+	res |= FIELD_PREP(MAX31827_CONFIGURATION_TIMEOUT_MASK, !prop);
+
+	type = (enum chips)(uintptr_t)device_get_match_data(dev);
+
+	if (fwnode_property_present(fwnode, "adi,alarm-pol")) {
+		ret = fwnode_property_read_u32(fwnode, "adi,alarm-pol", &data);
+		if (ret)
+			return ret;
+
+		res |= FIELD_PREP(MAX31827_CONFIGURATION_ALRM_POL_MASK, !!data);
+	} else {
+		/*
+		 * Set default value.
+		 */
+		switch (type) {
+		case max31827:
+		case max31828:
+			res |= FIELD_PREP(MAX31827_CONFIGURATION_ALRM_POL_MASK,
+					  MAX31827_ALRM_POL_LOW);
+			break;
+		case max31829:
+			res |= FIELD_PREP(MAX31827_CONFIGURATION_ALRM_POL_MASK,
+					  MAX31827_ALRM_POL_HIGH);
+			break;
+		default:
+			return -EOPNOTSUPP;
+		}
+	}
+
+	if (fwnode_property_present(fwnode, "adi,fault-q")) {
+		ret = fwnode_property_read_u32(fwnode, "adi,fault-q", &data);
+		if (ret)
+			return ret;
+
+		/*
+		 * Convert the desired fault queue into register bits.
+		 */
+		if (data != 0)
+			lsb_idx = __ffs(data);
+
+		if (hweight32(data) != 1 || lsb_idx > 4) {
+			dev_err(dev, "Invalid data in adi,fault-q\n");
+			return -EINVAL;
+		}
+
+		res |= FIELD_PREP(MAX31827_CONFIGURATION_FLT_Q_MASK, lsb_idx);
+	} else {
+		/*
+		 * Set default value.
+		 */
+		switch (type) {
+		case max31827:
+			res |= FIELD_PREP(MAX31827_CONFIGURATION_FLT_Q_MASK,
+					  MAX31827_FLT_Q_1);
+			break;
+		case max31828:
+		case max31829:
+			res |= FIELD_PREP(MAX31827_CONFIGURATION_FLT_Q_MASK,
+					  MAX31827_FLT_Q_4);
+			break;
+		default:
+			return -EOPNOTSUPP;
+		}
+	}
+
+	return regmap_write(st->regmap, MAX31827_CONFIGURATION_REG, res);
 }
 
 static const struct hwmon_channel_info *max31827_info[] = {
@@ -417,25 +623,30 @@ static int max31827_probe(struct i2c_client *client)
 	if (err)
 		return dev_err_probe(dev, err, "failed to enable regulator\n");
 
-	err = max31827_init_client(st);
+	err = max31827_init_client(st, dev);
 	if (err)
 		return err;
 
 	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, st,
 							 &max31827_chip_info,
-							 NULL);
+							 max31827_groups);
 
 	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
-static const struct i2c_device_id max31827_i2c_ids[] = {
-	{ "max31827", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, max31827_i2c_ids);
-
 static const struct of_device_id max31827_of_match[] = {
-	{ .compatible = "adi,max31827" },
+	{
+		.compatible = "adi,max31827",
+		.data = (void *)max31827
+	},
+	{
+		.compatible = "adi,max31828",
+		.data = (void *)max31828
+	},
+	{
+		.compatible = "adi,max31829",
+		.data = (void *)max31829
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, max31827_of_match);
diff --git a/drivers/hwmon/max6650.c b/drivers/hwmon/max6650.c
index cc8428a304..9649c6611d 100644
--- a/drivers/hwmon/max6650.c
+++ b/drivers/hwmon/max6650.c
@@ -26,7 +26,7 @@
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/thermal.h>
 
 /*
@@ -763,8 +763,6 @@ static int max6650_probe(struct i2c_client *client)
 {
 	struct thermal_cooling_device *cooling_dev;
 	struct device *dev = &client->dev;
-	const struct of_device_id *of_id =
-		of_match_device(of_match_ptr(max6650_dt_match), dev);
 	struct max6650_data *data;
 	struct device *hwmon_dev;
 	int err;
@@ -776,8 +774,8 @@ static int max6650_probe(struct i2c_client *client)
 	data->client = client;
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
-	data->nr_fans = of_id ? (int)(uintptr_t)of_id->data :
-				i2c_match_id(max6650_id, client)->driver_data;
+
+	data->nr_fans = (uintptr_t)i2c_get_match_data(client);
 
 	/*
 	 * Initialize the max6650 chip
diff --git a/drivers/hwmon/nct6775-core.c b/drivers/hwmon/nct6775-core.c
index f3bf2e4701..9fbab8f023 100644
--- a/drivers/hwmon/nct6775-core.c
+++ b/drivers/hwmon/nct6775-core.c
@@ -63,19 +63,19 @@
 
 /* used to set data->name = nct6775_device_names[data->sio_kind] */
 static const char * const nct6775_device_names[] = {
-	"nct6106",
-	"nct6116",
-	"nct6775",
-	"nct6776",
-	"nct6779",
-	"nct6791",
-	"nct6792",
-	"nct6793",
-	"nct6795",
-	"nct6796",
-	"nct6797",
-	"nct6798",
-	"nct6799",
+	[nct6106] = "nct6106",
+	[nct6116] = "nct6116",
+	[nct6775] = "nct6775",
+	[nct6776] = "nct6776",
+	[nct6779] = "nct6779",
+	[nct6791] = "nct6791",
+	[nct6792] = "nct6792",
+	[nct6793] = "nct6793",
+	[nct6795] = "nct6795",
+	[nct6796] = "nct6796",
+	[nct6797] = "nct6797",
+	[nct6798] = "nct6798",
+	[nct6799] = "nct6799",
 };
 
 /* Common and NCT6775 specific data */
@@ -767,9 +767,9 @@ static const u16 NCT6106_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4 };
 static const u16 NCT6106_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6 };
 static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4 };
 
-static const u8 NCT6106_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3 };
-static const u8 NCT6106_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04 };
-static const u16 NCT6106_REG_PWM_READ[] = { 0x4a, 0x4b, 0x4c };
+static const u8 NCT6106_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3, 0, 0 };
+static const u8 NCT6106_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04, 0, 0 };
+static const u16 NCT6106_REG_PWM_READ[] = { 0x4a, 0x4b, 0x4c, 0xd8, 0xd9 };
 static const u16 NCT6106_REG_FAN_MODE[] = { 0x113, 0x123, 0x133 };
 static const u16 NCT6106_REG_TEMP_SOURCE[] = {
 	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5 };
@@ -3604,7 +3604,7 @@ int nct6775_probe(struct device *dev, struct nct6775_data *data,
 		break;
 	case nct6116:
 		data->in_num = 9;
-		data->pwm_num = 3;
+		data->pwm_num = 5;
 		data->auto_pwm_num = 4;
 		data->temp_fixed_num = 3;
 		data->num_temp_alarms = 3;
diff --git a/drivers/hwmon/nct6775-i2c.c b/drivers/hwmon/nct6775-i2c.c
index 87a4fc78c5..aff69fa504 100644
--- a/drivers/hwmon/nct6775-i2c.c
+++ b/drivers/hwmon/nct6775-i2c.c
@@ -21,7 +21,7 @@
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/regmap.h>
 #include "nct6775.h"
 
@@ -155,23 +155,13 @@ static const struct regmap_config nct6775_i2c_regmap_config = {
 static int nct6775_i2c_probe(struct i2c_client *client)
 {
 	struct nct6775_data *data;
-	const struct of_device_id *of_id;
-	const struct i2c_device_id *i2c_id;
 	struct device *dev = &client->dev;
 
-	of_id = of_match_device(nct6775_i2c_of_match, dev);
-	i2c_id = i2c_match_id(nct6775_i2c_id, client);
-
-	if (of_id && (unsigned long)of_id->data != i2c_id->driver_data)
-		dev_notice(dev, "Device mismatch: %s in device tree, %s detected\n",
-			   of_id->name, i2c_id->name);
-
 	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	data->kind = i2c_id->driver_data;
-
+	data->kind = (enum kinds)(uintptr_t)i2c_get_match_data(client);
 	data->read_only = true;
 	data->driver_data = client;
 	data->driver_init = nct6775_i2c_probe_init;
diff --git a/drivers/hwmon/nct6775-platform.c b/drivers/hwmon/nct6775-platform.c
index 0adeeab7ee..9aa4dcf4a6 100644
--- a/drivers/hwmon/nct6775-platform.c
+++ b/drivers/hwmon/nct6775-platform.c
@@ -23,19 +23,19 @@
 enum sensor_access { access_direct, access_asuswmi };
 
 static const char * const nct6775_sio_names[] __initconst = {
-	"NCT6106D",
-	"NCT6116D",
-	"NCT6775F",
-	"NCT6776D/F",
-	"NCT6779D",
-	"NCT6791D",
-	"NCT6792D",
-	"NCT6793D",
-	"NCT6795D",
-	"NCT6796D",
-	"NCT6797D",
-	"NCT6798D",
-	"NCT6796D-S/NCT6799D-R",
+	[nct6106] = "NCT6106D",
+	[nct6116] = "NCT6116D",
+	[nct6775] = "NCT6775F",
+	[nct6776] = "NCT6776D/F",
+	[nct6779] = "NCT6779D",
+	[nct6791] = "NCT6791D",
+	[nct6792] = "NCT6792D",
+	[nct6793] = "NCT6793D",
+	[nct6795] = "NCT6795D",
+	[nct6796] = "NCT6796D",
+	[nct6797] = "NCT6797D",
+	[nct6798] = "NCT6798D",
+	[nct6799] = "NCT6796D-S/NCT6799D-R",
 };
 
 static unsigned short force_id;
diff --git a/drivers/hwmon/nct6775.h b/drivers/hwmon/nct6775.h
index 296eff99d0..d31e7a0302 100644
--- a/drivers/hwmon/nct6775.h
+++ b/drivers/hwmon/nct6775.h
@@ -4,7 +4,7 @@
 
 #include <linux/types.h>
 
-enum kinds { nct6106, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792,
+enum kinds { nct6106 = 1, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792,
 	     nct6793, nct6795, nct6796, nct6797, nct6798, nct6799 };
 enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
 
diff --git a/drivers/hwmon/npcm750-pwm-fan.c b/drivers/hwmon/npcm750-pwm-fan.c
index 4702e4edc6..904816abb7 100644
--- a/drivers/hwmon/npcm750-pwm-fan.c
+++ b/drivers/hwmon/npcm750-pwm-fan.c
@@ -46,9 +46,9 @@
 #define NPCM7XX_PWM_CTRL_CH3_EN_BIT		BIT(16)
 
 /* Define the maximum PWM channel number */
-#define NPCM7XX_PWM_MAX_CHN_NUM			8
+#define NPCM7XX_PWM_MAX_CHN_NUM			12
 #define NPCM7XX_PWM_MAX_CHN_NUM_IN_A_MODULE	4
-#define NPCM7XX_PWM_MAX_MODULES                 2
+#define NPCM7XX_PWM_MAX_MODULES                 3
 
 /* Define the Counter Register, value = 100 for match 100% */
 #define NPCM7XX_PWM_COUNTER_DEFAULT_NUM		255
@@ -171,6 +171,10 @@
 #define FAN_PREPARE_TO_GET_FIRST_CAPTURE	0x01
 #define FAN_ENOUGH_SAMPLE			0x02
 
+struct npcm_hwmon_info {
+	u32 pwm_max_channel;
+};
+
 struct npcm7xx_fan_dev {
 	u8 fan_st_flg;
 	u8 fan_pls_per_rev;
@@ -191,6 +195,7 @@ struct npcm7xx_cooling_device {
 struct npcm7xx_pwm_fan_data {
 	void __iomem *pwm_base;
 	void __iomem *fan_base;
+	int pwm_modules;
 	unsigned long pwm_clk_freq;
 	unsigned long fan_clk_freq;
 	struct clk *pwm_clk;
@@ -204,6 +209,7 @@ struct npcm7xx_pwm_fan_data {
 	struct timer_list fan_timer;
 	struct npcm7xx_fan_dev fan_dev[NPCM7XX_FAN_MAX_CHN_NUM];
 	struct npcm7xx_cooling_device *cdev[NPCM7XX_PWM_MAX_CHN_NUM];
+	const struct npcm_hwmon_info *info;
 	u8 fan_select;
 };
 
@@ -542,7 +548,7 @@ static umode_t npcm7xx_pwm_is_visible(const void *_data, u32 attr, int channel)
 {
 	const struct npcm7xx_pwm_fan_data *data = _data;
 
-	if (!data->pwm_present[channel])
+	if (!data->pwm_present[channel] || channel >= data->info->pwm_max_channel)
 		return 0;
 
 	switch (attr) {
@@ -638,6 +644,10 @@ static const struct hwmon_channel_info * const npcm7xx_info[] = {
 			   HWMON_PWM_INPUT,
 			   HWMON_PWM_INPUT,
 			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
 			   HWMON_PWM_INPUT),
 	HWMON_CHANNEL_INFO(fan,
 			   HWMON_F_INPUT,
@@ -670,6 +680,14 @@ static const struct hwmon_chip_info npcm7xx_chip_info = {
 	.info = npcm7xx_info,
 };
 
+static const struct npcm_hwmon_info npxm7xx_hwmon_info = {
+	.pwm_max_channel = 8,
+};
+
+static const struct npcm_hwmon_info npxm8xx_hwmon_info = {
+	.pwm_max_channel = 12,
+};
+
 static u32 npcm7xx_pwm_init(struct npcm7xx_pwm_fan_data *data)
 {
 	int m, ch;
@@ -693,7 +711,7 @@ static u32 npcm7xx_pwm_init(struct npcm7xx_pwm_fan_data *data)
 	/* Setting PWM Prescale Register value register to both modules */
 	prescale_val |= (prescale_val << NPCM7XX_PWM_PRESCALE_SHIFT_CH01);
 
-	for (m = 0; m < NPCM7XX_PWM_MAX_MODULES  ; m++) {
+	for (m = 0; m < data->pwm_modules; m++) {
 		iowrite32(prescale_val, NPCM7XX_PWM_REG_PR(data->pwm_base, m));
 		iowrite32(NPCM7XX_PWM_PRESCALE2_DEFAULT,
 			  NPCM7XX_PWM_REG_CSR(data->pwm_base, m));
@@ -925,6 +943,12 @@ static int npcm7xx_pwm_fan_probe(struct platform_device *pdev)
 	if (!data)
 		return -ENOMEM;
 
+	data->info = device_get_match_data(dev);
+	if (!data->info)
+		return -EINVAL;
+
+	data->pwm_modules = data->info->pwm_max_channel / NPCM7XX_PWM_MAX_CHN_NUM_IN_A_MODULE;
+
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pwm");
 	if (!res) {
 		dev_err(dev, "pwm resource not found\n");
@@ -962,7 +986,7 @@ static int npcm7xx_pwm_fan_probe(struct platform_device *pdev)
 	output_freq = npcm7xx_pwm_init(data);
 	npcm7xx_fan_init(data);
 
-	for (cnt = 0; cnt < NPCM7XX_PWM_MAX_MODULES  ; cnt++)
+	for (cnt = 0; cnt < data->pwm_modules; cnt++)
 		mutex_init(&data->pwm_lock[cnt]);
 
 	for (i = 0; i < NPCM7XX_FAN_MAX_MODULE; i++) {
@@ -1017,7 +1041,8 @@ static int npcm7xx_pwm_fan_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id of_pwm_fan_match_table[] = {
-	{ .compatible = "nuvoton,npcm750-pwm-fan", },
+	{ .compatible = "nuvoton,npcm750-pwm-fan", .data = &npxm7xx_hwmon_info},
+	{ .compatible = "nuvoton,npcm845-pwm-fan", .data = &npxm8xx_hwmon_info},
 	{},
 };
 MODULE_DEVICE_TABLE(of, of_pwm_fan_match_table);
diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c
index 926ea1fe13..9e9681b2e8 100644
--- a/drivers/hwmon/pc87360.c
+++ b/drivers/hwmon/pc87360.c
@@ -323,7 +323,11 @@ static struct pc87360_data *pc87360_update_device(struct device *dev)
 		}
 
 		/* Voltages */
-		for (i = 0; i < data->innr; i++) {
+		/*
+		 * The min() below does not have any practical meaning and is
+		 * only needed to silence a warning observed with gcc 12+.
+		 */
+		for (i = 0; i < min(data->innr, ARRAY_SIZE(data->in)); i++) {
 			data->in_status[i] = pc87360_read_value(data, LD_IN, i,
 					     PC87365_REG_IN_STATUS);
 			/* Clear bits */
diff --git a/drivers/hwmon/peci/dimmtemp.c b/drivers/hwmon/peci/dimmtemp.c
index 5ca4d04e4b..4a72e97124 100644
--- a/drivers/hwmon/peci/dimmtemp.c
+++ b/drivers/hwmon/peci/dimmtemp.c
@@ -47,7 +47,7 @@
 #define GET_TEMP_MAX(x)		(((x) & DIMM_TEMP_MAX) >> 8)
 #define GET_TEMP_CRIT(x)	(((x) & DIMM_TEMP_CRIT) >> 16)
 
-#define NO_DIMM_RETRY_COUNT_MAX	5
+#define NO_DIMM_RETRY_COUNT_MAX	120
 
 struct peci_dimmtemp;
 
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index b4e93bd583..294808f524 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -227,6 +227,16 @@ config SENSORS_LTC3815
 	  This driver can also be built as a module. If so, the module will
 	  be called ltc3815.
 
+config SENSORS_LTC4286
+	bool "Analog Devices LTC4286"
+	help
+	  LTC4286 is an integrated solution for hot swap applications that
+	  allows a board to be safely inserted and removed from a live
+	  backplane.
+	  This chip could be used to monitor voltage, current, ...etc.
+	  If you say yes here you get hardware monitoring support for Analog
+	  Devices LTC4286.
+
 config SENSORS_MAX15301
 	tristate "Maxim MAX15301"
 	help
@@ -299,6 +309,15 @@ config SENSORS_MAX8688
 	  This driver can also be built as a module. If so, the module will
 	  be called max8688.
 
+config SENSORS_MP2856
+	tristate "MPS MP2856"
+	help
+	  If you say yes here you get hardware monitoring support for MPS
+	  MP2856 MP2857 Dual Loop Digital Multi-Phase Controller.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called mp2856.
+
 config SENSORS_MP2888
 	tristate "MPS MP2888"
 	help
@@ -333,6 +352,15 @@ config SENSORS_MP5023
 	  This driver can also be built as a module. If so, the module will
 	  be called mp5023.
 
+config SENSORS_MP5990
+	tristate "MPS MP5990"
+	help
+	  If you say yes here you get hardware monitoring support for MPS
+	  MP5990.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called mp5990.
+
 config SENSORS_MPQ7932_REGULATOR
 	bool "Regulator support for MPQ7932"
 	depends on SENSORS_MPQ7932 && REGULATOR
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index 84ee960a6c..cf8a767445 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_SENSORS_LM25066)	+= lm25066.o
 obj-$(CONFIG_SENSORS_LT7182S)	+= lt7182s.o
 obj-$(CONFIG_SENSORS_LTC2978)	+= ltc2978.o
 obj-$(CONFIG_SENSORS_LTC3815)	+= ltc3815.o
+obj-$(CONFIG_SENSORS_LTC4286)	+= ltc4286.o
 obj-$(CONFIG_SENSORS_MAX15301)	+= max15301.o
 obj-$(CONFIG_SENSORS_MAX16064)	+= max16064.o
 obj-$(CONFIG_SENSORS_MAX16601)	+= max16601.o
@@ -32,9 +33,11 @@ obj-$(CONFIG_SENSORS_MAX20751)	+= max20751.o
 obj-$(CONFIG_SENSORS_MAX31785)	+= max31785.o
 obj-$(CONFIG_SENSORS_MAX34440)	+= max34440.o
 obj-$(CONFIG_SENSORS_MAX8688)	+= max8688.o
+obj-$(CONFIG_SENSORS_MP2856)	+= mp2856.o
 obj-$(CONFIG_SENSORS_MP2888)	+= mp2888.o
 obj-$(CONFIG_SENSORS_MP2975)	+= mp2975.o
 obj-$(CONFIG_SENSORS_MP5023)	+= mp5023.o
+obj-$(CONFIG_SENSORS_MP5990)	+= mp5990.o
 obj-$(CONFIG_SENSORS_MPQ7932)	+= mpq7932.o
 obj-$(CONFIG_SENSORS_PLI1209BC)	+= pli1209bc.o
 obj-$(CONFIG_SENSORS_PM6764TR)	+= pm6764tr.o
diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c
index 929fa6d34e..3a20df5a43 100644
--- a/drivers/hwmon/pmbus/lm25066.c
+++ b/drivers/hwmon/pmbus/lm25066.c
@@ -14,10 +14,10 @@
 #include <linux/slab.h>
 #include <linux/i2c.h>
 #include <linux/log2.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include "pmbus.h"
 
-enum chips { lm25056, lm25066, lm5064, lm5066, lm5066i };
+enum chips { lm25056 = 1, lm25066, lm5064, lm5066, lm5066i };
 
 #define LM25066_READ_VAUX		0xd0
 #define LM25066_MFR_READ_IIN		0xd1
@@ -468,8 +468,6 @@ static int lm25066_probe(struct i2c_client *client)
 	struct lm25066_data *data;
 	struct pmbus_driver_info *info;
 	const struct __coeff *coeff;
-	const struct of_device_id *of_id;
-	const struct i2c_device_id *i2c_id;
 
 	if (!i2c_check_functionality(client->adapter,
 				     I2C_FUNC_SMBUS_READ_BYTE_DATA))
@@ -484,14 +482,8 @@ static int lm25066_probe(struct i2c_client *client)
 	if (config < 0)
 		return config;
 
-	i2c_id = i2c_match_id(lm25066_id, client);
+	data->id = (enum chips)(unsigned long)i2c_get_match_data(client);
 
-	of_id = of_match_device(lm25066_of_match, &client->dev);
-	if (of_id && (unsigned long)of_id->data != i2c_id->driver_data)
-		dev_notice(&client->dev, "Device mismatch: %s in device tree, %s detected\n",
-			   of_id->name, i2c_id->name);
-
-	data->id = i2c_id->driver_data;
 	info = &data->info;
 
 	info->pages = 1;
diff --git a/drivers/hwmon/pmbus/ltc4286.c b/drivers/hwmon/pmbus/ltc4286.c
new file mode 100644
index 0000000000..9e7ceeb7e7
--- /dev/null
+++ b/drivers/hwmon/pmbus/ltc4286.c
@@ -0,0 +1,175 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pmbus.h>
+#include "pmbus.h"
+
+/* LTC4286 register */
+#define LTC4286_MFR_CONFIG1	0xF2
+
+/* LTC4286 configuration */
+#define VRANGE_SELECT_BIT	BIT(1)
+
+#define LTC4286_MFR_ID_SIZE	3
+
+/*
+ * Initialize the MBR as default settings which is referred to LTC4286 datasheet
+ * (March 22, 2022 version) table 3 page 16
+ */
+static struct pmbus_driver_info ltc4286_info = {
+	.pages = 1,
+	.format[PSC_VOLTAGE_IN] = direct,
+	.format[PSC_VOLTAGE_OUT] = direct,
+	.format[PSC_CURRENT_OUT] = direct,
+	.format[PSC_POWER] = direct,
+	.format[PSC_TEMPERATURE] = direct,
+	.m[PSC_VOLTAGE_IN] = 32,
+	.b[PSC_VOLTAGE_IN] = 0,
+	.R[PSC_VOLTAGE_IN] = 1,
+	.m[PSC_VOLTAGE_OUT] = 32,
+	.b[PSC_VOLTAGE_OUT] = 0,
+	.R[PSC_VOLTAGE_OUT] = 1,
+	.m[PSC_CURRENT_OUT] = 1024,
+	.b[PSC_CURRENT_OUT] = 0,
+	/*
+	 * The rsense value used in MBR formula in LTC4286 datasheet should be ohm unit.
+	 * However, the rsense value that user input is micro ohm.
+	 * Thus, the MBR setting which involves rsense should be shifted by 6 digits.
+	 */
+	.R[PSC_CURRENT_OUT] = 3 - 6,
+	.m[PSC_POWER] = 1,
+	.b[PSC_POWER] = 0,
+	/*
+	 * The rsense value used in MBR formula in LTC4286 datasheet should be ohm unit.
+	 * However, the rsense value that user input is micro ohm.
+	 * Thus, the MBR setting which involves rsense should be shifted by 6 digits.
+	 */
+	.R[PSC_POWER] = 4 - 6,
+	.m[PSC_TEMPERATURE] = 1,
+	.b[PSC_TEMPERATURE] = 273,
+	.R[PSC_TEMPERATURE] = 0,
+	.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT |
+		   PMBUS_HAVE_PIN | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_VOUT |
+		   PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_TEMP,
+};
+
+static const struct i2c_device_id ltc4286_id[] = {
+	{ "ltc4286", 0 },
+	{ "ltc4287", 1 },
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, ltc4286_id);
+
+static int ltc4286_probe(struct i2c_client *client)
+{
+	int ret;
+	const struct i2c_device_id *mid;
+	u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1];
+	struct pmbus_driver_info *info;
+	u32 rsense;
+	int vrange_nval, vrange_oval;
+
+	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, block_buffer);
+	if (ret < 0) {
+		return dev_err_probe(&client->dev, ret,
+				     "Failed to read manufacturer id\n");
+	}
+
+	/*
+	 * Refer to ltc4286 datasheet page 20
+	 * the manufacturer id is LTC
+	 */
+	if (ret != LTC4286_MFR_ID_SIZE ||
+	    strncmp(block_buffer, "LTC", LTC4286_MFR_ID_SIZE)) {
+		return dev_err_probe(&client->dev, -ENODEV,
+				     "Manufacturer id mismatch\n");
+	}
+
+	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, block_buffer);
+	if (ret < 0) {
+		return dev_err_probe(&client->dev, ret,
+				     "Failed to read manufacturer model\n");
+	}
+
+	for (mid = ltc4286_id; mid->name[0]; mid++) {
+		if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
+			break;
+	}
+	if (!mid->name[0])
+		return dev_err_probe(&client->dev, -ENODEV,
+				     "Unsupported device\n");
+
+	if (of_property_read_u32(client->dev.of_node,
+				 "shunt-resistor-micro-ohms", &rsense))
+		rsense = 300; /* 0.3 mOhm if not set via DT */
+
+	if (rsense == 0)
+		return -EINVAL;
+
+	/* Check for the latter MBR value won't overflow */
+	if (rsense > (INT_MAX / 1024))
+		return -EINVAL;
+
+	info = devm_kmemdup(&client->dev, &ltc4286_info, sizeof(*info),
+			    GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	/* Check MFR1 CONFIG register bit 1 VRANGE_SELECT before driver loading */
+	vrange_oval = i2c_smbus_read_word_data(client, LTC4286_MFR_CONFIG1);
+	if (vrange_oval < 0)
+		return dev_err_probe(&client->dev, vrange_oval,
+				     "Failed to read manufacturer configuration one\n");
+	vrange_nval = vrange_oval;
+
+	if (device_property_read_bool(&client->dev, "adi,vrange-low-enable")) {
+		vrange_nval &=
+			~VRANGE_SELECT_BIT; /* VRANGE_SELECT = 0, 25.6 volts */
+
+		info->m[PSC_VOLTAGE_IN] = 128;
+		info->m[PSC_VOLTAGE_OUT] = 128;
+		info->m[PSC_POWER] = 4 * rsense;
+	} else {
+		vrange_nval |=
+			VRANGE_SELECT_BIT; /* VRANGE_SELECT = 1, 102.4 volts */
+
+		info->m[PSC_POWER] = rsense;
+	}
+	if (vrange_nval != vrange_oval) {
+		/* Set MFR1 CONFIG register bit 1 VRANGE_SELECT */
+		ret = i2c_smbus_write_word_data(client, LTC4286_MFR_CONFIG1,
+						vrange_nval);
+		if (ret < 0)
+			return dev_err_probe(&client->dev, ret,
+					     "Failed to set vrange\n");
+	}
+
+	info->m[PSC_CURRENT_OUT] = 1024 * rsense;
+
+	return pmbus_do_probe(client, info);
+}
+
+static const struct of_device_id ltc4286_of_match[] = {
+	{ .compatible = "lltc,ltc4286" },
+	{ .compatible = "lltc,ltc4287" },
+	{}
+};
+
+static struct i2c_driver ltc4286_driver = {
+	.driver = {
+		.name = "ltc4286",
+		.of_match_table = ltc4286_of_match,
+	},
+	.probe = ltc4286_probe,
+	.id_table = ltc4286_id,
+};
+
+module_i2c_driver(ltc4286_driver);
+
+MODULE_AUTHOR("Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>");
+MODULE_DESCRIPTION("PMBUS driver for LTC4286 and compatibles");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/mp2856.c b/drivers/hwmon/pmbus/mp2856.c
new file mode 100644
index 0000000000..6969350f5d
--- /dev/null
+++ b/drivers/hwmon/pmbus/mp2856.c
@@ -0,0 +1,466 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Hardware monitoring driver for MPS2856/2857
+ * Monolithic Power Systems VR Controllers
+ *
+ * Copyright (C) 2023 Quanta Computer lnc.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pmbus.h>
+#include "pmbus.h"
+
+/* Vendor specific registers. */
+#define MP2856_MFR_VR_MULTI_CONFIG_R1	0x0d
+#define MP2856_MFR_VR_MULTI_CONFIG_R2	0x1d
+
+#define MP2856_MUL1_BOOT_SR_R2		0x10
+#define MP2856_VR_ACTIVE		BIT(15)
+
+#define MP2856_MFR_VR_CONFIG2		0x5e
+#define MP2856_VOUT_MODE		BIT(11)
+
+#define MP2856_MFR_VR_CONFIG1		0x68
+#define MP2856_DRMOS_KCS		GENMASK(13, 12)
+
+#define MP2856_MFR_READ_CS1_2_R1	0x82
+#define MP2856_MFR_READ_CS3_4_R1	0x83
+#define MP2856_MFR_READ_CS5_6_R1	0x84
+#define MP2856_MFR_READ_CS7_8_R1	0x85
+#define MP2856_MFR_READ_CS9_10_R1	0x86
+#define MP2856_MFR_READ_CS11_12_R1	0x87
+
+#define MP2856_MFR_READ_CS1_2_R2	0x85
+#define MP2856_MFR_READ_CS3_4_R2	0x86
+#define MP2856_MFR_READ_CS5_6_R2	0x87
+
+#define MP2856_MAX_PHASE_RAIL1		8
+#define MP2856_MAX_PHASE_RAIL2		4
+
+#define MP2857_MAX_PHASE_RAIL1		12
+#define MP2857_MAX_PHASE_RAIL2		4
+
+#define MP2856_PAGE_NUM			2
+
+enum chips { mp2856 = 1, mp2857 };
+
+static const int mp2856_max_phases[][MP2856_PAGE_NUM] = {
+	[mp2856] = { MP2856_MAX_PHASE_RAIL1, MP2856_MAX_PHASE_RAIL2 },
+	[mp2857] = { MP2857_MAX_PHASE_RAIL1, MP2857_MAX_PHASE_RAIL2 },
+};
+
+static const struct i2c_device_id mp2856_id[] = {
+	{"mp2856", mp2856},
+	{"mp2857", mp2857},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, mp2856_id);
+
+struct mp2856_data {
+	struct pmbus_driver_info info;
+	int vout_format[MP2856_PAGE_NUM];
+	int curr_sense_gain[MP2856_PAGE_NUM];
+	int max_phases[MP2856_PAGE_NUM];
+	enum chips chip_id;
+};
+
+#define to_mp2856_data(x)	container_of(x, struct mp2856_data, info)
+
+#define MAX_LIN_MANTISSA	(1023 * 1000)
+#define MIN_LIN_MANTISSA	(511 * 1000)
+
+static u16 val2linear11(s64 val)
+{
+	s16 exponent = 0, mantissa;
+	bool negative = false;
+
+	if (val == 0)
+		return 0;
+
+	if (val < 0) {
+		negative = true;
+		val = -val;
+	}
+
+	/* Reduce large mantissa until it fits into 10 bit */
+	while (val >= MAX_LIN_MANTISSA && exponent < 15) {
+		exponent++;
+		val >>= 1;
+	}
+	/* Increase small mantissa to improve precision */
+	while (val < MIN_LIN_MANTISSA && exponent > -15) {
+		exponent--;
+		val <<= 1;
+	}
+
+	/* Convert mantissa from milli-units to units */
+	mantissa = clamp_val(DIV_ROUND_CLOSEST_ULL(val, 1000), 0, 0x3ff);
+
+	/* restore sign */
+	if (negative)
+		mantissa = -mantissa;
+
+	/* Convert to 5 bit exponent, 11 bit mantissa */
+	return (mantissa & 0x7ff) | ((exponent << 11) & 0xf800);
+}
+
+static int
+mp2856_read_word_helper(struct i2c_client *client, int page, int phase, u8 reg,
+			u16 mask)
+{
+	int ret = pmbus_read_word_data(client, page, phase, reg);
+
+	return (ret > 0) ? ret & mask : ret;
+}
+
+static int
+mp2856_read_vout(struct i2c_client *client, struct mp2856_data *data, int page,
+		 int phase, u8 reg)
+{
+	int ret;
+
+	ret = mp2856_read_word_helper(client, page, phase, reg,
+				      GENMASK(9, 0));
+	if (ret < 0)
+		return ret;
+
+	/* convert vout result to direct format */
+	ret = (data->vout_format[page] == vid) ?
+		((ret + 49) * 5) : ((ret * 1000) >> 8);
+
+	return ret;
+}
+
+static int
+mp2856_read_phase(struct i2c_client *client, struct mp2856_data *data,
+		  int page, int phase, u8 reg)
+{
+	int ret;
+	int val;
+
+	ret = pmbus_read_word_data(client, page, phase, reg);
+	if (ret < 0)
+		return ret;
+
+	if (!((phase + 1) % MP2856_PAGE_NUM))
+		ret >>= 8;
+	ret &= 0xff;
+
+	/*
+	 * Output value is calculated as: (READ_CSx * 12.5mV - 1.23V) / (Kcs * Rcs)
+	 */
+	val = (ret * 125) - 12300;
+
+	return val2linear11(val);
+}
+
+static int
+mp2856_read_phases(struct i2c_client *client, struct mp2856_data *data,
+		   int page, int phase)
+{
+	int ret;
+
+	if (page == 0) {
+		switch (phase) {
+		case 0 ... 1:
+			ret = mp2856_read_phase(client, data, page, phase,
+						MP2856_MFR_READ_CS1_2_R1);
+			break;
+		case 2 ... 3:
+			ret = mp2856_read_phase(client, data, page, phase,
+						MP2856_MFR_READ_CS3_4_R1);
+			break;
+		case 4 ... 5:
+			ret = mp2856_read_phase(client, data, page, phase,
+						MP2856_MFR_READ_CS5_6_R1);
+			break;
+		case 6 ... 7:
+			ret = mp2856_read_phase(client, data, page, phase,
+						MP2856_MFR_READ_CS7_8_R1);
+			break;
+		default:
+			return -ENODATA;
+		}
+	} else {
+		switch (phase) {
+		case 0 ... 1:
+			ret = mp2856_read_phase(client, data, page, phase,
+						MP2856_MFR_READ_CS1_2_R2);
+			break;
+		case 2 ... 3:
+			ret = mp2856_read_phase(client, data, page, phase,
+						MP2856_MFR_READ_CS1_2_R2);
+			break;
+		default:
+			return -ENODATA;
+		}
+	}
+	return ret;
+}
+
+static int
+mp2856_read_word_data(struct i2c_client *client, int page,
+		      int phase, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct mp2856_data *data = to_mp2856_data(info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_READ_VOUT:
+		ret = mp2856_read_vout(client, data, page, phase, reg);
+		break;
+	case PMBUS_READ_IOUT:
+		if (phase != 0xff)
+			ret = mp2856_read_phases(client, data, page, phase);
+		else
+			ret = pmbus_read_word_data(client, page, phase, reg);
+		break;
+	default:
+		return -ENODATA;
+	}
+
+	return ret;
+}
+
+static int
+mp2856_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	switch (reg) {
+	case PMBUS_VOUT_MODE:
+		/* Enforce VOUT direct format. */
+		return PB_VOUT_MODE_DIRECT;
+	default:
+		return -ENODATA;
+	}
+}
+
+static int
+mp2856_identify_multiphase(struct i2c_client *client, u8 reg, u8 max_phase,
+			   u16 mask)
+{
+	int ret;
+
+	ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, 2);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_read_word_data(client, reg);
+	if (ret < 0)
+		return ret;
+
+	ret &= mask;
+	return (ret >= max_phase) ? max_phase : ret;
+}
+
+static int
+mp2856_identify_multiphase_rail1(struct i2c_client *client,
+				 struct mp2856_data *data)
+{
+	int ret, i;
+
+	ret = mp2856_identify_multiphase(client, MP2856_MFR_VR_MULTI_CONFIG_R1,
+					 MP2856_MAX_PHASE_RAIL1, GENMASK(3, 0));
+	if (ret < 0)
+		return ret;
+
+	data->info.phases[0] = (ret > data->max_phases[0]) ?
+				data->max_phases[0] : ret;
+
+	for (i = 0 ; i < data->info.phases[0]; i++)
+		data->info.pfunc[i] |= PMBUS_HAVE_IOUT;
+
+	return 0;
+}
+
+static int
+mp2856_identify_multiphase_rail2(struct i2c_client *client,
+				 struct mp2856_data *data)
+{
+	int ret, i;
+
+	ret = mp2856_identify_multiphase(client, MP2856_MFR_VR_MULTI_CONFIG_R2,
+					 MP2856_MAX_PHASE_RAIL2, GENMASK(2, 0));
+	if (ret < 0)
+		return ret;
+
+	data->info.phases[1] = (ret > data->max_phases[1]) ?
+				data->max_phases[1] : ret;
+
+	for (i = 0 ; i < data->info.phases[0]; i++)
+		data->info.pfunc[i] |= PMBUS_HAVE_IOUT;
+
+	return 0;
+}
+
+static int
+mp2856_current_sense_gain_get(struct i2c_client *client,
+			      struct mp2856_data *data)
+{
+	int i, ret;
+
+	/*
+	 * Obtain DrMOS current sense gain of power stage from the register
+	 * MP2856_MFR_VR_CONFIG1, bits 13-12. The value is selected as below:
+	 * 00b - 5µA/A, 01b - 8.5µA/A, 10b - 9.7µA/A, 11b - 10µA/A. Other
+	 * values are invalid.
+	 */
+	for (i = 0 ; i < data->info.pages; i++) {
+		ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, i);
+		if (ret < 0)
+			return ret;
+		ret = i2c_smbus_read_word_data(client,
+					       MP2856_MFR_VR_CONFIG1);
+		if (ret < 0)
+			return ret;
+
+		switch ((ret & MP2856_DRMOS_KCS) >> 12) {
+		case 0:
+			data->curr_sense_gain[i] = 50;
+			break;
+		case 1:
+			data->curr_sense_gain[i] = 85;
+			break;
+		case 2:
+			data->curr_sense_gain[i] = 97;
+			break;
+		default:
+			data->curr_sense_gain[i] = 100;
+			break;
+		}
+	}
+	return 0;
+}
+
+static int
+mp2856_identify_vout_format(struct i2c_client *client,
+			    struct mp2856_data *data)
+{
+	int i, ret;
+
+	for (i = 0; i < data->info.pages; i++) {
+		ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, i);
+		if (ret < 0)
+			return ret;
+
+		ret = i2c_smbus_read_word_data(client, MP2856_MFR_VR_CONFIG2);
+		if (ret < 0)
+			return ret;
+
+		data->vout_format[i] = (ret & MP2856_VOUT_MODE) ? linear : vid;
+	}
+	return 0;
+}
+
+static bool
+mp2856_is_rail2_active(struct i2c_client *client)
+{
+	int ret;
+
+	ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, 2);
+	if (ret < 0)
+		return true;
+
+	ret = i2c_smbus_read_word_data(client, MP2856_MUL1_BOOT_SR_R2);
+	if (ret < 0)
+		return true;
+
+	return (ret & MP2856_VR_ACTIVE) ? true : false;
+}
+
+static struct pmbus_driver_info mp2856_info = {
+	.pages = MP2856_PAGE_NUM,
+	.format[PSC_VOLTAGE_IN] = linear,
+	.format[PSC_VOLTAGE_OUT] = direct,
+	.format[PSC_TEMPERATURE] = linear,
+	.format[PSC_CURRENT_IN] = linear,
+	.format[PSC_CURRENT_OUT] = linear,
+	.format[PSC_POWER] = linear,
+	.m[PSC_VOLTAGE_OUT] = 1,
+	.R[PSC_VOLTAGE_OUT] = 3,
+	.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
+		PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
+		PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_POUT |
+		PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
+	.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_IOUT |
+		PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP,
+	.read_byte_data = mp2856_read_byte_data,
+	.read_word_data = mp2856_read_word_data,
+};
+
+static int mp2856_probe(struct i2c_client *client)
+{
+	struct pmbus_driver_info *info;
+	struct mp2856_data *data;
+	int ret;
+
+	data = devm_kzalloc(&client->dev, sizeof(struct mp2856_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->chip_id = (enum chips)(uintptr_t)i2c_get_match_data(client);
+
+	memcpy(data->max_phases, mp2856_max_phases[data->chip_id],
+	       sizeof(data->max_phases));
+
+	memcpy(&data->info, &mp2856_info, sizeof(*info));
+	info = &data->info;
+
+	/* Identify multiphase configuration. */
+	ret = mp2856_identify_multiphase_rail1(client, data);
+	if (ret < 0)
+		return ret;
+
+	if (mp2856_is_rail2_active(client)) {
+		ret = mp2856_identify_multiphase_rail2(client, data);
+		if (ret < 0)
+			return ret;
+	} else {
+		/* rail2 is not active */
+		info->pages = 1;
+	}
+
+	/* Obtain current sense gain of power stage. */
+	ret = mp2856_current_sense_gain_get(client, data);
+	if (ret)
+		return ret;
+
+	/* Identify vout format. */
+	ret = mp2856_identify_vout_format(client, data);
+	if (ret)
+		return ret;
+
+	/* set the device to page 0 */
+	i2c_smbus_write_byte_data(client, PMBUS_PAGE, 0);
+
+	return pmbus_do_probe(client, info);
+}
+
+static const struct of_device_id __maybe_unused mp2856_of_match[] = {
+	{.compatible = "mps,mp2856", .data = (void *)mp2856},
+	{.compatible = "mps,mp2857", .data = (void *)mp2857},
+	{}
+};
+MODULE_DEVICE_TABLE(of, mp2856_of_match);
+
+static struct i2c_driver mp2856_driver = {
+	.driver = {
+		.name = "mp2856",
+		.of_match_table = mp2856_of_match,
+	},
+	.probe = mp2856_probe,
+	.id_table = mp2856_id,
+};
+
+module_i2c_driver(mp2856_driver);
+
+MODULE_AUTHOR("Peter Yin <peter.yin@quantatw.com>");
+MODULE_DESCRIPTION("PMBus driver for MPS MP2856/MP2857 device");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(PMBUS);
diff --git a/drivers/hwmon/pmbus/mp2975.c b/drivers/hwmon/pmbus/mp2975.c
index b9bb469e2d..e5fa10b3b8 100644
--- a/drivers/hwmon/pmbus/mp2975.c
+++ b/drivers/hwmon/pmbus/mp2975.c
@@ -126,6 +126,21 @@ static const struct regulator_desc __maybe_unused mp2975_reg_desc[] = {
 
 #define to_mp2975_data(x)  container_of(x, struct mp2975_data, info)
 
+static int mp2975_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	switch (reg) {
+	case PMBUS_VOUT_MODE:
+		/*
+		 * Report direct format as configured by MFR_DC_LOOP_CTRL.
+		 * Unlike on MP2971/MP2973 the reported VOUT_MODE isn't automatically
+		 * internally updated, but always reads as PB_VOUT_MODE_VID.
+		 */
+		return PB_VOUT_MODE_DIRECT;
+	default:
+		return -ENODATA;
+	}
+}
+
 static int
 mp2975_read_word_helper(struct i2c_client *client, int page, int phase, u8 reg,
 			u16 mask)
@@ -869,6 +884,7 @@ static struct pmbus_driver_info mp2975_info = {
 		PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
 		PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_POUT |
 		PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT | PMBUS_PHASE_VIRTUAL,
+	.read_byte_data = mp2975_read_byte_data,
 	.read_word_data = mp2975_read_word_data,
 #if IS_ENABLED(CONFIG_SENSORS_MP2975_REGULATOR)
 	.num_regulators = 1,
diff --git a/drivers/hwmon/pmbus/mp5990.c b/drivers/hwmon/pmbus/mp5990.c
new file mode 100644
index 0000000000..1dfbab25a0
--- /dev/null
+++ b/drivers/hwmon/pmbus/mp5990.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for MPS MP5990 Hot-Swap Controller
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include "pmbus.h"
+
+#define MP5990_EFUSE_CFG	(0xC4)
+#define MP5990_VOUT_FORMAT	BIT(9)
+
+struct mp5990_data {
+	struct pmbus_driver_info info;
+	u8 vout_mode;
+	u8 vout_linear_exponent;
+};
+
+#define to_mp5990_data(x)  container_of(x, struct mp5990_data, info)
+
+static int mp5990_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct mp5990_data *data = to_mp5990_data(info);
+
+	switch (reg) {
+	case PMBUS_VOUT_MODE:
+		if (data->vout_mode == linear) {
+			/*
+			 * The VOUT format used by the chip is linear11,
+			 * not linear16. Report that VOUT is in linear mode
+			 * and return exponent value extracted while probing
+			 * the chip.
+			 */
+			return data->vout_linear_exponent;
+		}
+
+		/*
+		 * The datasheet does not support the VOUT command,
+		 * but the device responds with a default value of 0x17.
+		 * In the standard, 0x17 represents linear mode.
+		 * Therefore, we should report that VOUT is in direct
+		 * format when the chip is configured for it.
+		 */
+		return PB_VOUT_MODE_DIRECT;
+
+	default:
+		return -ENODATA;
+	}
+}
+
+static int mp5990_read_word_data(struct i2c_client *client, int page,
+				 int phase, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct mp5990_data *data = to_mp5990_data(info);
+	int ret;
+	s32 mantissa;
+
+	switch (reg) {
+	case PMBUS_READ_VOUT:
+		ret = pmbus_read_word_data(client, page, phase, reg);
+		if (ret < 0)
+			return ret;
+		/*
+		 * Because the VOUT format used by the chip is linear11 and not
+		 * linear16, we disregard bits[15:11]. The exponent is reported
+		 * as part of the VOUT_MODE command.
+		 */
+		if (data->vout_mode == linear) {
+			mantissa = ((s16)((ret & 0x7ff) << 5)) >> 5;
+			ret = mantissa;
+		}
+		break;
+	default:
+		return -ENODATA;
+	}
+
+	return ret;
+}
+
+static struct pmbus_driver_info mp5990_info = {
+	.pages = 1,
+	.format[PSC_VOLTAGE_IN] = direct,
+	.format[PSC_VOLTAGE_OUT] = direct,
+	.format[PSC_CURRENT_OUT] = direct,
+	.format[PSC_POWER] = direct,
+	.format[PSC_TEMPERATURE] = direct,
+	.m[PSC_VOLTAGE_IN] = 32,
+	.b[PSC_VOLTAGE_IN] = 0,
+	.R[PSC_VOLTAGE_IN] = 0,
+	.m[PSC_VOLTAGE_OUT] = 32,
+	.b[PSC_VOLTAGE_OUT] = 0,
+	.R[PSC_VOLTAGE_OUT] = 0,
+	.m[PSC_CURRENT_OUT] = 16,
+	.b[PSC_CURRENT_OUT] = 0,
+	.R[PSC_CURRENT_OUT] = 0,
+	.m[PSC_POWER] = 1,
+	.b[PSC_POWER] = 0,
+	.R[PSC_POWER] = 0,
+	.m[PSC_TEMPERATURE] = 1,
+	.b[PSC_TEMPERATURE] = 0,
+	.R[PSC_TEMPERATURE] = 0,
+	.func[0] =
+		PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_PIN |
+		PMBUS_HAVE_TEMP | PMBUS_HAVE_IOUT |
+		PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP,
+	.read_byte_data = mp5990_read_byte_data,
+	.read_word_data = mp5990_read_word_data,
+};
+
+static int mp5990_probe(struct i2c_client *client)
+{
+	struct pmbus_driver_info *info;
+	struct mp5990_data *data;
+	int ret;
+
+	data = devm_kzalloc(&client->dev, sizeof(struct mp5990_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	memcpy(&data->info, &mp5990_info, sizeof(*info));
+	info = &data->info;
+
+	/* Read Vout Config */
+	ret = i2c_smbus_read_word_data(client, MP5990_EFUSE_CFG);
+	if (ret < 0) {
+		dev_err(&client->dev, "Can't get vout mode.");
+		return ret;
+	}
+
+	/*
+	 * EFUSE_CFG (0xC4) bit9=1 is linear mode, bit=0 is direct mode.
+	 */
+	if (ret & MP5990_VOUT_FORMAT) {
+		data->vout_mode = linear;
+		data->info.format[PSC_VOLTAGE_IN] = linear;
+		data->info.format[PSC_VOLTAGE_OUT] = linear;
+		data->info.format[PSC_CURRENT_OUT] = linear;
+		data->info.format[PSC_POWER] = linear;
+		ret = i2c_smbus_read_word_data(client, PMBUS_READ_VOUT);
+		if (ret < 0) {
+			dev_err(&client->dev, "Can't get vout exponent.");
+			return ret;
+		}
+		data->vout_linear_exponent = (u8)((ret >> 11) & 0x1f);
+	} else {
+		data->vout_mode = direct;
+	}
+	return pmbus_do_probe(client, info);
+}
+
+static const struct of_device_id mp5990_of_match[] = {
+	{ .compatible = "mps,mp5990" },
+	{}
+};
+
+static const struct i2c_device_id mp5990_id[] = {
+	{"mp5990", 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, mp5990_id);
+
+static struct i2c_driver mp5990_driver = {
+	.driver = {
+		   .name = "mp5990",
+		   .of_match_table = mp5990_of_match,
+	},
+	.probe = mp5990_probe,
+	.id_table = mp5990_id,
+};
+module_i2c_driver(mp5990_driver);
+
+MODULE_AUTHOR("Peter Yin <peter.yin@quantatw.com>");
+MODULE_DESCRIPTION("PMBus driver for MP5990 HSC");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(PMBUS);
diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 6e4516c2ab..b67bc9e833 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -151,7 +151,7 @@ static int pwm_fan_power_on(struct pwm_fan_ctx *ctx)
 	}
 
 	state->enabled = true;
-	ret = pwm_apply_state(ctx->pwm, state);
+	ret = pwm_apply_might_sleep(ctx->pwm, state);
 	if (ret) {
 		dev_err(ctx->dev, "failed to enable PWM\n");
 		goto disable_regulator;
@@ -181,7 +181,7 @@ static int pwm_fan_power_off(struct pwm_fan_ctx *ctx)
 
 	state->enabled = false;
 	state->duty_cycle = 0;
-	ret = pwm_apply_state(ctx->pwm, state);
+	ret = pwm_apply_might_sleep(ctx->pwm, state);
 	if (ret) {
 		dev_err(ctx->dev, "failed to disable PWM\n");
 		return ret;
@@ -207,7 +207,7 @@ static int  __set_pwm(struct pwm_fan_ctx *ctx, unsigned long pwm)
 
 		period = state->period;
 		state->duty_cycle = DIV_ROUND_UP(pwm * (period - 1), MAX_PWM);
-		ret = pwm_apply_state(ctx->pwm, state);
+		ret = pwm_apply_might_sleep(ctx->pwm, state);
 		if (ret)
 			return ret;
 		ret = pwm_fan_power_on(ctx);
@@ -278,7 +278,7 @@ static int pwm_fan_update_enable(struct pwm_fan_ctx *ctx, long val)
 						    state,
 						    &enable_regulator);
 
-			pwm_apply_state(ctx->pwm, state);
+			pwm_apply_might_sleep(ctx->pwm, state);
 			pwm_fan_switch_power(ctx, enable_regulator);
 			pwm_fan_update_state(ctx, 0);
 		}
diff --git a/drivers/hwmon/sht4x.c b/drivers/hwmon/sht4x.c
index 7ee7974104..4883755d4b 100644
--- a/drivers/hwmon/sht4x.c
+++ b/drivers/hwmon/sht4x.c
@@ -49,6 +49,7 @@ DECLARE_CRC8_TABLE(sht4x_crc8_table);
  * struct sht4x_data - All the data required to operate an SHT4X chip
  * @client: the i2c client associated with the SHT4X
  * @lock: a mutex that is used to prevent parallel access to the i2c client
+ * @valid: validity of fields below
  * @update_interval: the minimum poll interval
  * @last_updated: the previous time that the SHT4X was polled
  * @temperature: the latest temperature value received from the SHT4X
@@ -66,7 +67,7 @@ struct sht4x_data {
 
 /**
  * sht4x_read_values() - read and parse the raw data from the SHT4X
- * @sht4x_data: the struct sht4x_data to use for the lock
+ * @data: the struct sht4x_data to use for the lock
  * Return: 0 if successful, -ERRNO if not
  */
 static int sht4x_read_values(struct sht4x_data *data)
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index 37531b5c82..0d46edbcb1 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -33,7 +33,7 @@ static unsigned short force_id;
 module_param(force_id, ushort, 0);
 MODULE_PARM_DESC(force_id, "Override the detected device ID");
 
-static struct platform_device *pdev;
+static struct platform_device *smsc47m1_pdev;
 
 #define DRVNAME "smsc47m1"
 enum chips { smsc47m1, smsc47m2 };
@@ -840,70 +840,57 @@ error_remove_files:
 	return err;
 }
 
-static int __exit smsc47m1_remove(struct platform_device *pdev)
+static void __exit smsc47m1_remove(struct platform_device *pdev)
 {
 	struct smsc47m1_data *data = platform_get_drvdata(pdev);
 
 	hwmon_device_unregister(data->hwmon_dev);
 	smsc47m1_remove_files(&pdev->dev);
-
-	return 0;
 }
 
-static struct platform_driver smsc47m1_driver = {
+/*
+ * smsc47m1_remove() lives in .exit.text. For drivers registered via
+ * module_platform_driver_probe() this ok because they cannot get unbound at
+ * runtime. The driver needs to be marked with __refdata, otherwise modpost
+ * triggers a section mismatch warning.
+ */
+static struct platform_driver smsc47m1_driver __refdata = {
 	.driver = {
 		.name	= DRVNAME,
 	},
-	.remove		= __exit_p(smsc47m1_remove),
+	.remove_new	= __exit_p(smsc47m1_remove),
 };
 
 static int __init smsc47m1_device_add(unsigned short address,
 				      const struct smsc47m1_sio_data *sio_data)
 {
-	struct resource res = {
+	const struct resource res = {
 		.start	= address,
 		.end	= address + SMSC_EXTENT - 1,
 		.name	= DRVNAME,
 		.flags	= IORESOURCE_IO,
 	};
+	const struct platform_device_info pdevinfo = {
+		.name = DRVNAME,
+		.id = address,
+		.res = &res,
+		.num_res = 1,
+		.data = sio_data,
+		.size_data = sizeof(struct smsc47m1_sio_data),
+	};
 	int err;
 
 	err = smsc47m1_handle_resources(address, sio_data->type, CHECK, NULL);
 	if (err)
-		goto exit;
+		return err;
 
-	pdev = platform_device_alloc(DRVNAME, address);
-	if (!pdev) {
-		err = -ENOMEM;
+	smsc47m1_pdev = platform_device_register_full(&pdevinfo);
+	if (IS_ERR(smsc47m1_pdev)) {
 		pr_err("Device allocation failed\n");
-		goto exit;
-	}
-
-	err = platform_device_add_resources(pdev, &res, 1);
-	if (err) {
-		pr_err("Device resource addition failed (%d)\n", err);
-		goto exit_device_put;
-	}
-
-	err = platform_device_add_data(pdev, sio_data,
-				       sizeof(struct smsc47m1_sio_data));
-	if (err) {
-		pr_err("Platform data allocation failed\n");
-		goto exit_device_put;
-	}
-
-	err = platform_device_add(pdev);
-	if (err) {
-		pr_err("Device addition failed (%d)\n", err);
-		goto exit_device_put;
+		return PTR_ERR(smsc47m1_pdev);
 	}
 
 	return 0;
-
-exit_device_put:
-	platform_device_put(pdev);
-exit:
-	return err;
 }
 
 static int __init sm_smsc47m1_init(void)
@@ -917,7 +904,7 @@ static int __init sm_smsc47m1_init(void)
 		return err;
 	address = err;
 
-	/* Sets global pdev as a side effect */
+	/* Sets global smsc47m1_pdev as a side effect */
 	err = smsc47m1_device_add(address, &sio_data);
 	if (err)
 		return err;
@@ -929,7 +916,7 @@ static int __init sm_smsc47m1_init(void)
 	return 0;
 
 exit_device:
-	platform_device_unregister(pdev);
+	platform_device_unregister(smsc47m1_pdev);
 	smsc47m1_restore(&sio_data);
 	return err;
 }
@@ -937,8 +924,8 @@ exit_device:
 static void __exit sm_smsc47m1_exit(void)
 {
 	platform_driver_unregister(&smsc47m1_driver);
-	smsc47m1_restore(dev_get_platdata(&pdev->dev));
-	platform_device_unregister(pdev);
+	smsc47m1_restore(dev_get_platdata(&smsc47m1_pdev->dev));
+	platform_device_unregister(smsc47m1_pdev);
 }
 
 MODULE_AUTHOR("Mark D. Studebaker <mdsxyz123@yahoo.com>");
diff --git a/drivers/hwmon/tmp513.c b/drivers/hwmon/tmp513.c
index 8a7cf08733..ea6f4416c1 100644
--- a/drivers/hwmon/tmp513.c
+++ b/drivers/hwmon/tmp513.c
@@ -19,15 +19,20 @@
  * the Free Software Foundation; version 2 of the License.
  */
 
+#include <linux/bitops.h>
+#include <linux/bug.h>
+#include <linux/device.h>
 #include <linux/err.h>
 #include <linux/hwmon.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
-#include <linux/kernel.h>
+#include <linux/math.h>
 #include <linux/module.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
-#include <linux/util_macros.h>
+#include <linux/types.h>
+#include <linux/units.h>
 
 // Common register definition
 #define TMP51X_SHUNT_CONFIG		0x00
@@ -97,8 +102,8 @@
 #define TMP51X_REMOTE_TEMP_LIMIT_2_POS		8
 #define TMP513_REMOTE_TEMP_LIMIT_3_POS		7
 
-#define TMP51X_VBUS_RANGE_32V		32000000
-#define TMP51X_VBUS_RANGE_16V		16000000
+#define TMP51X_VBUS_RANGE_32V		(32 * MICRO)
+#define TMP51X_VBUS_RANGE_16V		(16 * MICRO)
 
 // Max and Min value
 #define MAX_BUS_VOLTAGE_32_LIMIT	32764
@@ -200,7 +205,7 @@ static int tmp51x_get_value(struct tmp51x_data *data, u8 reg, u8 pos,
 		 * on the pga gain setting. 1lsb = 10uV
 		 */
 		*val = sign_extend32(regval, 17 - tmp51x_get_pga_shift(data));
-		*val = DIV_ROUND_CLOSEST(*val * 10000, data->shunt_uohms);
+		*val = DIV_ROUND_CLOSEST(*val * 10 * MILLI, data->shunt_uohms);
 		break;
 	case TMP51X_BUS_VOLTAGE_RESULT:
 	case TMP51X_BUS_VOLTAGE_H_LIMIT:
@@ -216,7 +221,7 @@ static int tmp51x_get_value(struct tmp51x_data *data, u8 reg, u8 pos,
 	case TMP51X_BUS_CURRENT_RESULT:
 		// Current = (ShuntVoltage * CalibrationRegister) / 4096
 		*val = sign_extend32(regval, 16) * data->curr_lsb_ua;
-		*val = DIV_ROUND_CLOSEST(*val, 1000);
+		*val = DIV_ROUND_CLOSEST(*val, MILLI);
 		break;
 	case TMP51X_LOCAL_TEMP_RESULT:
 	case TMP51X_REMOTE_TEMP_RESULT_1:
@@ -256,7 +261,7 @@ static int tmp51x_set_value(struct tmp51x_data *data, u8 reg, long val)
 		 * The user enter current value and we convert it to
 		 * voltage. 1lsb = 10uV
 		 */
-		val = DIV_ROUND_CLOSEST(val * data->shunt_uohms, 10000);
+		val = DIV_ROUND_CLOSEST(val * data->shunt_uohms, 10 * MILLI);
 		max_val = U16_MAX >> tmp51x_get_pga_shift(data);
 		regval = clamp_val(val, -max_val, max_val);
 		break;
@@ -546,18 +551,16 @@ static int tmp51x_calibrate(struct tmp51x_data *data)
 	if (data->shunt_uohms == 0)
 		return regmap_write(data->regmap, TMP51X_SHUNT_CALIBRATION, 0);
 
-	max_curr_ma = DIV_ROUND_CLOSEST_ULL(vshunt_max * 1000 * 1000,
-					    data->shunt_uohms);
+	max_curr_ma = DIV_ROUND_CLOSEST_ULL(vshunt_max * MICRO, data->shunt_uohms);
 
 	/*
 	 * Calculate the minimal bit resolution for the current and the power.
 	 * Those values will be used during register interpretation.
 	 */
-	data->curr_lsb_ua = DIV_ROUND_CLOSEST_ULL(max_curr_ma * 1000, 32767);
+	data->curr_lsb_ua = DIV_ROUND_CLOSEST_ULL(max_curr_ma * MILLI, 32767);
 	data->pwr_lsb_uw = 20 * data->curr_lsb_ua;
 
-	div = DIV_ROUND_CLOSEST_ULL(data->curr_lsb_ua * data->shunt_uohms,
-				    1000 * 1000);
+	div = DIV_ROUND_CLOSEST_ULL(data->curr_lsb_ua * data->shunt_uohms, MICRO);
 
 	return regmap_write(data->regmap, TMP51X_SHUNT_CALIBRATION,
 			    DIV_ROUND_CLOSEST(40960, div));
@@ -626,9 +629,9 @@ static int tmp51x_vbus_range_to_reg(struct device *dev,
 	} else if (data->vbus_range_uvolt == TMP51X_VBUS_RANGE_16V) {
 		data->shunt_config &= ~TMP51X_BUS_VOLTAGE_MASK;
 	} else {
-		dev_err(dev, "ti,bus-range-microvolt is invalid: %u\n",
-			data->vbus_range_uvolt);
-		return -EINVAL;
+		return dev_err_probe(dev, -EINVAL,
+				     "ti,bus-range-microvolt is invalid: %u\n",
+				     data->vbus_range_uvolt);
 	}
 	return 0;
 }
@@ -644,8 +647,8 @@ static int tmp51x_pga_gain_to_reg(struct device *dev, struct tmp51x_data *data)
 	} else if (data->pga_gain == 1) {
 		data->shunt_config |= CURRENT_SENSE_VOLTAGE_40_MASK;
 	} else {
-		dev_err(dev, "ti,pga-gain is invalid: %u\n", data->pga_gain);
-		return -EINVAL;
+		return dev_err_probe(dev, -EINVAL,
+				     "ti,pga-gain is invalid: %u\n", data->pga_gain);
 	}
 	return 0;
 }
@@ -674,10 +677,10 @@ static int tmp51x_read_properties(struct device *dev, struct tmp51x_data *data)
 				       data->max_channels - 1);
 
 	// Check if shunt value is compatible with pga-gain
-	if (data->shunt_uohms > data->pga_gain * 40 * 1000 * 1000) {
-		dev_err(dev, "shunt-resistor: %u too big for pga_gain: %u\n",
-			data->shunt_uohms, data->pga_gain);
-		return -EINVAL;
+	if (data->shunt_uohms > data->pga_gain * 40 * MICRO) {
+		return dev_err_probe(dev, -EINVAL,
+				     "shunt-resistor: %u too big for pga_gain: %u\n",
+				     data->shunt_uohms, data->pga_gain);
 	}
 
 	return 0;
@@ -717,22 +720,17 @@ static int tmp51x_probe(struct i2c_client *client)
 	data->max_channels = (uintptr_t)i2c_get_match_data(client);
 
 	ret = tmp51x_configure(dev, data);
-	if (ret < 0) {
-		dev_err(dev, "error configuring the device: %d\n", ret);
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "error configuring the device\n");
 
 	data->regmap = devm_regmap_init_i2c(client, &tmp51x_regmap_config);
-	if (IS_ERR(data->regmap)) {
-		dev_err(dev, "failed to allocate register map\n");
-		return PTR_ERR(data->regmap);
-	}
+	if (IS_ERR(data->regmap))
+		return dev_err_probe(dev, PTR_ERR(data->regmap),
+				     "failed to allocate register map\n");
 
 	ret = tmp51x_init(data);
-	if (ret < 0) {
-		dev_err(dev, "error configuring the device: %d\n", ret);
-		return -ENODEV;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "error configuring the device\n");
 
 	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
 							 data,
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-18 18:50:03 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-18 18:50:03 +0000
commit	01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch)
tree	b406c5242a088c4f59c6e4b719b783f43aca6ae9 /drivers/hwmon
parent	Adding upstream version 6.7.12. (diff)
download	linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip