Merge tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linuxgrafted

Pull io_uring fixes from Jens Axboe:

 - Fix a task_work add use-after-free with SQPOLL.

   The sqpoll thread could pop and complete the last request while
   io_req_normal_work_add() was still looking at them after the mpscq
   push.

   Use the same approach as DEFER_TASKRUN to protect from that, holding
   an RCU read lock across the add, and have exit wait for an RCU grace
   period for SQPOLL rings as well.

 - CQE32 ring fixes: correct the free entry check for 32b CQEs, zero the
   big_cqe for aux CQEs, and only post the dummy skip CQE on CQE_MIXED
   rings

 - Mark the source filter table as COW when cloning bpf filters, so
   registering another filter on the source doesn't modify the shared
   table in place

 - Initialize the task context before running the BPF loop

 - Requeue zcrx multishot receives stopped by a local resource

 - End a TX_TIMESTAMP multishot cmd when the CQ is full (lollipopkit)

* tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: fix task_work add use-after-free with SQPOLL
  io_uring/cmd_net: end TX_TIMESTAMP multishot when the CQ is full
  io_uring/zcrx: requeue multishot receives stopped by a local resource
  io_uring: initialize task context before running the BPF loop
  io_uring: zero big_cqe for aux CQEs on CQE32 rings
  io_uring: fix free entry check for 32b CQEs on CQE32 rings
  io_uring: only post the dummy skip CQE on CQE_MIXED rings
  io_uring/bpf_filter: mark source as COW when cloning filters

1 files changed, 661 insertions, 0 deletions

diff --git a/drivers/hwmon/sch5627.c b/drivers/hwmon/sch5627.c
new file mode 100644
index 000000000..04e701ce2
--- /dev/null
+++ b/drivers/hwmon/sch5627.c
@@ -0,0 +1,661 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/***************************************************************************
+ *   Copyright (C) 2010-2012 Hans de Goede <hdegoede@redhat.com>           *
+ *                                                                         *
+ ***************************************************************************/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/bits.h>
+#include <linux/minmax.h>
+#include <linux/module.h>
+#include <linux/pm.h>
+#include <linux/init.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include "sch56xx-common.h"
+
+#define DRVNAME "sch5627"
+#define DEVNAME DRVNAME /* We only support one model */
+
+#define SCH5627_HWMON_ID		0xa5
+#define SCH5627_COMPANY_ID		0x5c
+#define SCH5627_PRIMARY_ID		0xa0
+
+#define SCH5627_REG_BUILD_CODE		0x39
+#define SCH5627_REG_BUILD_ID		0x3a
+#define SCH5627_REG_HWMON_ID		0x3c
+#define SCH5627_REG_HWMON_REV		0x3d
+#define SCH5627_REG_COMPANY_ID		0x3e
+#define SCH5627_REG_PRIMARY_ID		0x3f
+#define SCH5627_REG_CTRL		0x40
+
+#define SCH5627_CTRL_START		BIT(0)
+#define SCH5627_CTRL_LOCK		BIT(1)
+#define SCH5627_CTRL_VBAT		BIT(4)
+
+#define SCH5627_NO_TEMPS		8
+#define SCH5627_NO_FANS			4
+#define SCH5627_NO_IN			5
+
+static const u16 SCH5627_REG_TEMP_MSB[SCH5627_NO_TEMPS] = {
+	0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181 };
+static const u16 SCH5627_REG_TEMP_LSN[SCH5627_NO_TEMPS] = {
+	0xE2, 0xE1, 0xE1, 0xE5, 0xE5, 0xE6, 0x182, 0x182 };
+static const u16 SCH5627_REG_TEMP_HIGH_NIBBLE[SCH5627_NO_TEMPS] = {
+	0, 0, 1, 1, 0, 0, 0, 1 };
+static const u16 SCH5627_REG_TEMP_HIGH[SCH5627_NO_TEMPS] = {
+	0x61, 0x57, 0x59, 0x5B, 0x5D, 0x5F, 0x184, 0x186 };
+static const u16 SCH5627_REG_TEMP_ABS[SCH5627_NO_TEMPS] = {
+	0x9B, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x1A8, 0x1A9 };
+
+static const u16 SCH5627_REG_FAN[SCH5627_NO_FANS] = {
+	0x2C, 0x2E, 0x30, 0x32 };
+static const u16 SCH5627_REG_FAN_MIN[SCH5627_NO_FANS] = {
+	0x62, 0x64, 0x66, 0x68 };
+
+static const u16 SCH5627_REG_PWM_MAP[SCH5627_NO_FANS] = {
+	0xA0, 0xA1, 0xA2, 0xA3 };
+
+static const u16 SCH5627_REG_IN_MSB[SCH5627_NO_IN] = {
+	0x22, 0x23, 0x24, 0x25, 0x189 };
+static const u16 SCH5627_REG_IN_LSN[SCH5627_NO_IN] = {
+	0xE4, 0xE4, 0xE3, 0xE3, 0x18A };
+static const u16 SCH5627_REG_IN_HIGH_NIBBLE[SCH5627_NO_IN] = {
+	1, 0, 1, 0, 1 };
+static const u16 SCH5627_REG_IN_FACTOR[SCH5627_NO_IN] = {
+	10745, 3660, 9765, 10745, 3660 };
+static const char * const SCH5627_IN_LABELS[SCH5627_NO_IN] = {
+	"VCC", "VTT", "VBAT", "VTR", "V_IN" };
+
+struct sch5627_data {
+	struct regmap *regmap;
+	unsigned short addr;
+	u8 control;
+
+	struct mutex update_lock;
+	unsigned long last_battery;	/* In jiffies */
+	char temp_valid;		/* !=0 if following fields are valid */
+	char fan_valid;
+	char in_valid;
+	unsigned long temp_last_updated;	/* In jiffies */
+	unsigned long fan_last_updated;
+	unsigned long in_last_updated;
+	u16 temp[SCH5627_NO_TEMPS];
+	u16 fan[SCH5627_NO_FANS];
+	u16 in[SCH5627_NO_IN];
+};
+
+static const struct regmap_range sch5627_tunables_ranges[] = {
+	regmap_reg_range(0x57, 0x57),
+	regmap_reg_range(0x59, 0x59),
+	regmap_reg_range(0x5B, 0x5B),
+	regmap_reg_range(0x5D, 0x5D),
+	regmap_reg_range(0x5F, 0x5F),
+	regmap_reg_range(0x61, 0x69),
+	regmap_reg_range(0x96, 0x9B),
+	regmap_reg_range(0xA0, 0xA3),
+	regmap_reg_range(0x184, 0x184),
+	regmap_reg_range(0x186, 0x186),
+	regmap_reg_range(0x1A8, 0x1A9),
+};
+
+static const struct regmap_access_table sch5627_tunables_table = {
+	.yes_ranges = sch5627_tunables_ranges,
+	.n_yes_ranges = ARRAY_SIZE(sch5627_tunables_ranges),
+};
+
+static const struct regmap_config sch5627_regmap_config = {
+	.reg_bits = 16,
+	.val_bits = 8,
+	.wr_table = &sch5627_tunables_table,
+	.rd_table = &sch5627_tunables_table,
+	.cache_type = REGCACHE_MAPLE,
+	.use_single_read = true,
+	.use_single_write = true,
+	.can_sleep = true,
+};
+
+static int sch5627_update_temp(struct sch5627_data *data)
+{
+	int ret = 0;
+	int i, val;
+
+	mutex_lock(&data->update_lock);
+
+	/* Cache the values for 1 second */
+	if (time_after(jiffies, data->temp_last_updated + HZ) || !data->temp_valid) {
+		for (i = 0; i < SCH5627_NO_TEMPS; i++) {
+			val = sch56xx_read_virtual_reg12(data->addr, SCH5627_REG_TEMP_MSB[i],
+							 SCH5627_REG_TEMP_LSN[i],
+							 SCH5627_REG_TEMP_HIGH_NIBBLE[i]);
+			if (unlikely(val < 0)) {
+				ret = val;
+				goto abort;
+			}
+			data->temp[i] = val;
+		}
+		data->temp_last_updated = jiffies;
+		data->temp_valid = 1;
+	}
+abort:
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static int sch5627_update_fan(struct sch5627_data *data)
+{
+	int ret = 0;
+	int i, val;
+
+	mutex_lock(&data->update_lock);
+
+	/* Cache the values for 1 second */
+	if (time_after(jiffies, data->fan_last_updated + HZ) || !data->fan_valid) {
+		for (i = 0; i < SCH5627_NO_FANS; i++) {
+			val = sch56xx_read_virtual_reg16(data->addr, SCH5627_REG_FAN[i]);
+			if (unlikely(val < 0)) {
+				ret = val;
+				goto abort;
+			}
+			data->fan[i] = val;
+		}
+		data->fan_last_updated = jiffies;
+		data->fan_valid = 1;
+	}
+abort:
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static int sch5627_update_in(struct sch5627_data *data)
+{
+	int ret = 0;
+	int i, val;
+
+	mutex_lock(&data->update_lock);
+
+	/* Trigger a Vbat voltage measurement every 5 minutes */
+	if (time_after(jiffies, data->last_battery + 300 * HZ)) {
+		sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL,
+					  data->control | SCH5627_CTRL_VBAT);
+		data->last_battery = jiffies;
+	}
+
+	/* Cache the values for 1 second */
+	if (time_after(jiffies, data->in_last_updated + HZ) || !data->in_valid) {
+		for (i = 0; i < SCH5627_NO_IN; i++) {
+			val = sch56xx_read_virtual_reg12(data->addr, SCH5627_REG_IN_MSB[i],
+							 SCH5627_REG_IN_LSN[i],
+							 SCH5627_REG_IN_HIGH_NIBBLE[i]);
+			if (unlikely(val < 0)) {
+				ret = val;
+				goto abort;
+			}
+			data->in[i] = val;
+		}
+		data->in_last_updated = jiffies;
+		data->in_valid = 1;
+	}
+abort:
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static int reg_to_temp(u16 reg)
+{
+	return (reg * 625) / 10 - 64000;
+}
+
+static int reg_to_temp_limit(u8 reg)
+{
+	return (reg - 64) * 1000;
+}
+
+static int reg_to_rpm(u16 reg)
+{
+	if (reg == 0)
+		return -EIO;
+	if (reg == 0xffff)
+		return 0;
+
+	return 5400540 / reg;
+}
+
+static u8 sch5627_temp_limit_to_reg(long value)
+{
+	long limit = (value / 1000) + 64;
+
+	return clamp_val(limit, 0, U8_MAX);
+}
+
+static u16 sch5627_rpm_to_reg(long value)
+{
+	long pulses;
+
+	if (value <= 0)
+		return U16_MAX - 1;
+
+	pulses = 5400540 / value;
+
+	return clamp_val(pulses, 1, U16_MAX - 1);
+}
+
+static umode_t sch5627_is_visible(const void *drvdata, enum hwmon_sensor_types type, u32 attr,
+				  int channel)
+{
+	const struct sch5627_data *data = drvdata;
+
+	/* Once the lock bit is set, the virtual registers become read-only
+	 * until the next power cycle.
+	 */
+	if (data->control & SCH5627_CTRL_LOCK)
+		return 0444;
+
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_max:
+		case hwmon_temp_crit:
+			return 0644;
+		default:
+			break;
+		}
+		break;
+	case hwmon_fan:
+		switch (attr) {
+		case hwmon_fan_min:
+			return 0644;
+		default:
+			break;
+		}
+		break;
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_auto_channels_temp:
+			return 0644;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return 0444;
+}
+
+static int sch5627_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel,
+			long *val)
+{
+	struct sch5627_data *data = dev_get_drvdata(dev);
+	int ret, value;
+
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_input:
+			ret = sch5627_update_temp(data);
+			if (ret < 0)
+				return ret;
+
+			*val = reg_to_temp(data->temp[channel]);
+			return 0;
+		case hwmon_temp_max:
+			ret = regmap_read(data->regmap, SCH5627_REG_TEMP_ABS[channel], &value);
+			if (ret < 0)
+				return ret;
+
+			*val = reg_to_temp_limit((u8)value);
+			return 0;
+		case hwmon_temp_crit:
+			ret = regmap_read(data->regmap, SCH5627_REG_TEMP_HIGH[channel], &value);
+			if (ret < 0)
+				return ret;
+
+			*val = reg_to_temp_limit((u8)value);
+			return 0;
+		case hwmon_temp_fault:
+			ret = sch5627_update_temp(data);
+			if (ret < 0)
+				return ret;
+
+			*val = (data->temp[channel] == 0);
+			return 0;
+		default:
+			break;
+		}
+		break;
+	case hwmon_fan:
+		switch (attr) {
+		case hwmon_fan_input:
+			ret = sch5627_update_fan(data);
+			if (ret < 0)
+				return ret;
+
+			ret = reg_to_rpm(data->fan[channel]);
+			if (ret < 0)
+				return ret;
+
+			*val = ret;
+			return 0;
+		case hwmon_fan_min:
+			ret = sch56xx_regmap_read16(data->regmap, SCH5627_REG_FAN_MIN[channel],
+						    &value);
+			if (ret < 0)
+				return ret;
+
+			ret = reg_to_rpm((u16)value);
+			if (ret < 0)
+				return ret;
+
+			*val = ret;
+			return 0;
+		case hwmon_fan_fault:
+			ret = sch5627_update_fan(data);
+			if (ret < 0)
+				return ret;
+
+			*val = (data->fan[channel] == 0xffff);
+			return 0;
+		default:
+			break;
+		}
+		break;
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_auto_channels_temp:
+			ret = regmap_read(data->regmap, SCH5627_REG_PWM_MAP[channel], &value);
+			if (ret < 0)
+				return ret;
+
+			*val = value;
+			return 0;
+		default:
+			break;
+		}
+		break;
+	case hwmon_in:
+		ret = sch5627_update_in(data);
+		if (ret < 0)
+			return ret;
+		switch (attr) {
+		case hwmon_in_input:
+			*val = DIV_ROUND_CLOSEST(data->in[channel] * SCH5627_REG_IN_FACTOR[channel],
+						 10000);
+			return 0;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static int sch5627_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+			       int channel, const char **str)
+{
+	switch (type) {
+	case hwmon_in:
+		switch (attr) {
+		case hwmon_in_label:
+			*str = SCH5627_IN_LABELS[channel];
+			return 0;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static int sch5627_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel,
+			 long val)
+{
+	struct sch5627_data *data = dev_get_drvdata(dev);
+	u16 fan;
+	u8 temp;
+
+	switch (type) {
+	case hwmon_temp:
+		temp = sch5627_temp_limit_to_reg(val);
+
+		switch (attr) {
+		case hwmon_temp_max:
+			return regmap_write(data->regmap, SCH5627_REG_TEMP_ABS[channel], temp);
+		case hwmon_temp_crit:
+			return regmap_write(data->regmap, SCH5627_REG_TEMP_HIGH[channel], temp);
+		default:
+			break;
+		}
+		break;
+	case hwmon_fan:
+		switch (attr) {
+		case hwmon_fan_min:
+			fan = sch5627_rpm_to_reg(val);
+
+			return sch56xx_regmap_write16(data->regmap, SCH5627_REG_FAN_MIN[channel],
+						      fan);
+		default:
+			break;
+		}
+		break;
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_auto_channels_temp:
+			/* registers are 8 bit wide */
+			if (val > U8_MAX || val < 0)
+				return -EINVAL;
+
+			return regmap_write(data->regmap, SCH5627_REG_PWM_MAP[channel], val);
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static const struct hwmon_ops sch5627_ops = {
+	.is_visible = sch5627_is_visible,
+	.read = sch5627_read,
+	.read_string = sch5627_read_string,
+	.write = sch5627_write,
+};
+
+static const struct hwmon_channel_info * const sch5627_info[] = {
+	HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ),
+	HWMON_CHANNEL_INFO(temp,
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT
+			   ),
+	HWMON_CHANNEL_INFO(fan,
+			   HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_FAULT
+			   ),
+	HWMON_CHANNEL_INFO(pwm,
+			   HWMON_PWM_AUTO_CHANNELS_TEMP,
+			   HWMON_PWM_AUTO_CHANNELS_TEMP,
+			   HWMON_PWM_AUTO_CHANNELS_TEMP,
+			   HWMON_PWM_AUTO_CHANNELS_TEMP
+			   ),
+	HWMON_CHANNEL_INFO(in,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT
+			   ),
+	NULL
+};
+
+static const struct hwmon_chip_info sch5627_chip_info = {
+	.ops = &sch5627_ops,
+	.info = sch5627_info,
+};
+
+static int sch5627_probe(struct platform_device *pdev)
+{
+	struct sch5627_data *data;
+	struct device *hwmon_dev;
+	int build_code, build_id, hwmon_rev, val;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(struct sch5627_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_HWMON_ID);
+	if (val < 0)
+		return val;
+
+	if (val != SCH5627_HWMON_ID) {
+		pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "hwmon",
+		       val, SCH5627_HWMON_ID);
+		return -ENODEV;
+	}
+
+	val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_COMPANY_ID);
+	if (val < 0)
+		return val;
+
+	if (val != SCH5627_COMPANY_ID) {
+		pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "company",
+		       val, SCH5627_COMPANY_ID);
+		return -ENODEV;
+	}
+
+	val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_PRIMARY_ID);
+	if (val < 0)
+		return val;
+
+	if (val != SCH5627_PRIMARY_ID) {
+		pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "primary",
+		       val, SCH5627_PRIMARY_ID);
+		return -ENODEV;
+	}
+
+	build_code = sch56xx_read_virtual_reg(data->addr,
+					      SCH5627_REG_BUILD_CODE);
+	if (build_code < 0)
+		return build_code;
+
+	build_id = sch56xx_read_virtual_reg16(data->addr,
+					      SCH5627_REG_BUILD_ID);
+	if (build_id < 0)
+		return build_id;
+
+	hwmon_rev = sch56xx_read_virtual_reg(data->addr,
+					     SCH5627_REG_HWMON_REV);
+	if (hwmon_rev < 0)
+		return hwmon_rev;
+
+	val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_CTRL);
+	if (val < 0)
+		return val;
+
+	data->control = val;
+	if (!(data->control & SCH5627_CTRL_START)) {
+		pr_err("hardware monitoring not enabled\n");
+		return -ENODEV;
+	}
+
+	data->regmap = devm_regmap_init_sch56xx(&pdev->dev, &data->update_lock, data->addr,
+						&sch5627_regmap_config);
+	if (IS_ERR(data->regmap))
+		return PTR_ERR(data->regmap);
+
+	/* Trigger a Vbat voltage measurement, so that we get a valid reading
+	   the first time we read Vbat */
+	sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL, data->control | SCH5627_CTRL_VBAT);
+	data->last_battery = jiffies;
+
+	pr_info("found %s chip at %#hx\n", DEVNAME, data->addr);
+	pr_info("firmware build: code 0x%02X, id 0x%04X, hwmon: rev 0x%02X\n",
+		build_code, build_id, hwmon_rev);
+
+	hwmon_dev = devm_hwmon_device_register_with_info(&pdev->dev, DEVNAME, data,
+							 &sch5627_chip_info, NULL);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
+
+	/* Note failing to register the watchdog is not a fatal error */
+	sch56xx_watchdog_register(&pdev->dev, data->addr,
+				  (build_code << 24) | (build_id << 8) | hwmon_rev,
+				  &data->update_lock, 1);
+
+	return 0;
+}
+
+static int sch5627_suspend(struct device *dev)
+{
+	struct sch5627_data *data = dev_get_drvdata(dev);
+
+	regcache_cache_only(data->regmap, true);
+	regcache_mark_dirty(data->regmap);
+
+	return 0;
+}
+
+static int sch5627_resume(struct device *dev)
+{
+	struct sch5627_data *data = dev_get_drvdata(dev);
+
+	regcache_cache_only(data->regmap, false);
+	/* We must not access the virtual registers when the lock bit is set */
+	if (data->control & SCH5627_CTRL_LOCK)
+		return regcache_drop_region(data->regmap, 0, U16_MAX);
+
+	return regcache_sync(data->regmap);
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(sch5627_dev_pm_ops, sch5627_suspend, sch5627_resume);
+
+static const struct platform_device_id sch5627_device_id[] = {
+	{
+		.name = "sch5627",
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(platform, sch5627_device_id);
+
+static struct platform_driver sch5627_driver = {
+	.driver = {
+		.name	= DRVNAME,
+		.pm	= pm_sleep_ptr(&sch5627_dev_pm_ops),
+	},
+	.probe		= sch5627_probe,
+	.id_table	= sch5627_device_id,
+};
+
+module_platform_driver(sch5627_driver);
+
+MODULE_DESCRIPTION("SMSC SCH5627 Hardware Monitoring Driver");
+MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_LICENSE("GPL");