diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 696bf77a7042..9a8e44ca9ae4 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0-only
 source "drivers/power/reset/Kconfig"
+source "drivers/power/sequencing/Kconfig"
 source "drivers/power/supply/Kconfig"
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index effbf0377f32..962a2cd30a51 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_POWER_RESET)	+= reset/
+obj-$(CONFIG_POWER_SEQUENCING)	+= sequencing/
 obj-$(CONFIG_POWER_SUPPLY)	+= supply/
diff --git a/drivers/power/sequencing/Kconfig b/drivers/power/sequencing/Kconfig
new file mode 100644
index 000000000000..ba5732b1dbf8
--- /dev/null
+++ b/drivers/power/sequencing/Kconfig
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+menuconfig POWER_SEQUENCING
+	tristate "Power Sequencing support"
+	help
+	  Say Y here to enable the Power Sequencing subsystem.
+
+	  This subsystem is designed to control power to devices that share
+	  complex resources and/or require specific power sequences to be run
+	  during power-up.
+
+	  If unsure, say no.
diff --git a/drivers/power/sequencing/Makefile b/drivers/power/sequencing/Makefile
new file mode 100644
index 000000000000..dcdf8c0c159e
--- /dev/null
+++ b/drivers/power/sequencing/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_POWER_SEQUENCING)		+= pwrseq-core.o
+pwrseq-core-y				:= core.o
diff --git a/drivers/power/sequencing/core.c b/drivers/power/sequencing/core.c
new file mode 100644
index 000000000000..f035caed0e4e
--- /dev/null
+++ b/drivers/power/sequencing/core.c
@@ -0,0 +1,482 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2024 Linaro Ltd.
+ */
+
+#include <linux/bug.h>
+#include <linux/cleanup.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/idr.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/property.h>
+#include <linux/pwrseq/consumer.h>
+#include <linux/pwrseq/provider.h>
+#include <linux/rwsem.h>
+
+static DEFINE_IDA(pwrseq_ida);
+/*
+ * Protects the device list on the bus from concurrent modifications but allows
+ * simultaneous read-only access.
+ */
+static DECLARE_RWSEM(pwrseq_sem);
+
+/**
+ * struct pwrseq_device - Private power sequencing data.
+ * @dev: Device struct associated with this sequencer.
+ * @id: Device ID.
+ * @owner: Prevents removal of active power sequencing providers.
+ * @pwrup_count: Keeps track of power state change requests.
+ * @sem: Protects the device against being unregistered while in use.
+ * @drvdata: Provider driver private data.
+ * @match: Power sequencer matching callback.
+ * @power_on: Power-on callback.
+ * @power_off: Power-off callback.
+ */
+struct pwrseq_device {
+	struct device dev;
+	int id;
+	struct module *owner;
+	unsigned int pwrup_count;
+	struct rw_semaphore dev_sem;
+	struct mutex state_lock;
+	void *drvdata;
+	pwrseq_match_func match;
+	pwrseq_power_state_func power_on;
+	pwrseq_power_state_func power_off;
+};
+
+/**
+ * struct pwrseq_desc - Wraps access to the pwrseq_device and ensures that one
+ *                      user cannot break the reference counting for others.
+ * @pwrseq: Reference to the power sequencing device.
+ * @powered_up: Power state set by the holder of the descriptor (not necessarily
+ * corresponding to the actual power state of the device).
+ */
+struct pwrseq_desc {
+	struct pwrseq_device *pwrseq;
+	bool powered_up;
+};
+
+static struct pwrseq_device *to_pwrseq_device(struct device *dev)
+{
+	return container_of(dev, struct pwrseq_device, dev);
+}
+
+static struct pwrseq_device *pwrseq_device_get(struct pwrseq_device *pwrseq)
+{
+	get_device(&pwrseq->dev);
+
+	return pwrseq;
+}
+
+static void pwrseq_device_put(struct pwrseq_device *pwrseq)
+{
+	put_device(&pwrseq->dev);
+}
+
+static struct bus_type pwrseq_bus = {
+	.name = "pwrseq",
+};
+
+static void pwrseq_release(struct device *dev)
+{
+	struct pwrseq_device *pwrseq = to_pwrseq_device(dev);
+
+	mutex_destroy(&pwrseq->state_lock);
+	ida_free(&pwrseq_ida, pwrseq->id);
+	kfree(pwrseq);
+}
+
+static const struct device_type pwrseq_device_type = {
+	.name = "power_sequencer",
+	.release = pwrseq_release,
+};
+
+/**
+ * pwrseq_device_register() - Register a new power sequencer.
+ * @config: Configuration of the new power sequencing device.
+ *
+ * The config structure is only used during the call and can be freed after
+ * the function returns. The config structure *must* have the parent device
+ * as well as the match(), power_on() and power_off() callbacks registered.
+ *
+ * Returns:
+ * Returns the address of the new pwrseq device or ERR_PTR() on failure.
+ */
+struct pwrseq_device *pwrseq_device_register(struct pwrseq_config *config)
+{
+	struct pwrseq_device *pwrseq;
+	int ret;
+
+	/*
+	 * Power sequencer must have a parent device and at least the power-on,
+	 * power-off and match callbacks.
+	 */
+	if (!config->parent || !config->match || !config->power_on ||
+	    !config->power_off)
+		return ERR_PTR(-EINVAL);
+
+	pwrseq = kzalloc(sizeof(*pwrseq), GFP_KERNEL);
+	if (!pwrseq)
+		return ERR_PTR(-ENOMEM);
+
+	pwrseq->dev.type = &pwrseq_device_type;
+	pwrseq->dev.bus = &pwrseq_bus;
+	pwrseq->dev.parent = config->parent;
+	device_set_node(&pwrseq->dev, dev_fwnode(config->parent));
+
+	pwrseq->id = ida_alloc(&pwrseq_ida, GFP_KERNEL);
+	if (pwrseq->id < 0) {
+		kfree(pwrseq);
+		return ERR_PTR(pwrseq->id);
+	}
+
+	/*
+	 * From this point onwards the device's release() callback is
+	 * responsible for freeing resources.
+	 */
+	device_initialize(&pwrseq->dev);
+
+	ret = dev_set_name(&pwrseq->dev, "pwrseq.%d", pwrseq->id);
+	if (ret)
+		goto err_put_pwrseq;
+
+	pwrseq->owner = config->owner ?: THIS_MODULE;
+	pwrseq->drvdata = config->drvdata;
+	pwrseq->match = config->match;
+	pwrseq->power_on = config->power_on;
+	pwrseq->power_off = config->power_off;
+
+	init_rwsem(&pwrseq->dev_sem);
+	mutex_init(&pwrseq->state_lock);
+
+	scoped_guard(rwsem_write, &pwrseq_sem) {
+		ret = device_add(&pwrseq->dev);
+		if (ret)
+			goto err_put_pwrseq;
+	}
+
+	return pwrseq;
+
+err_put_pwrseq:
+	pwrseq_device_put(pwrseq);
+	return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(pwrseq_device_register);
+
+/**
+ * pwrseq_device_unregister() - Unregister the power sequencer.
+ * @pwrseq: Power sequencer to unregister.
+ */
+void pwrseq_device_unregister(struct pwrseq_device *pwrseq)
+{
+	struct device *dev = &pwrseq->dev;
+
+	scoped_guard(mutex, &pwrseq->state_lock) {
+		WARN_ONCE(pwrseq->pwrup_count > 0,
+			  "%s: UNREGISTERING POWER SEQUENCER WITH ACTIVE USERS\n",
+			  dev_name(&pwrseq->dev));
+
+		scoped_guard(rwsem_write, &pwrseq_sem) {
+			scoped_guard(rwsem_write, &pwrseq->dev_sem)
+				device_del(dev);
+		}
+	}
+
+	pwrseq_device_put(pwrseq);
+}
+EXPORT_SYMBOL_GPL(pwrseq_device_unregister);
+
+static void devm_pwrseq_device_unregister(void *data)
+{
+	struct pwrseq_device *pwrseq = data;
+
+	pwrseq_device_unregister(pwrseq);
+}
+
+/**
+ * devm_pwrseq_device_register() - Managed variant of pwrseq_device_register().
+ * @dev: Managing device.
+ * @config: Configuration of the new power sequencing device.
+ *
+ * Returns:
+ * Returns the address of the new pwrseq device or ERR_PTR() on failure.
+ */
+struct pwrseq_device *
+devm_pwrseq_device_register(struct device *dev, struct pwrseq_config *config)
+{
+	struct pwrseq_device *pwrseq;
+	int ret;
+
+	pwrseq = pwrseq_device_register(config);
+	if (IS_ERR(pwrseq))
+		return pwrseq;
+
+	ret = devm_add_action_or_reset(dev, devm_pwrseq_device_unregister,
+				       pwrseq);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return pwrseq;
+}
+EXPORT_SYMBOL_GPL(devm_pwrseq_device_register);
+
+/**
+ * pwrseq_device_get_data() - Get the driver private data associated with this
+ *                            sequencer.
+ * @pwrseq: Power sequencer object.
+ *
+ * Returns:
+ * Address of the private driver data.
+ */
+void *pwrseq_device_get_data(struct pwrseq_device *pwrseq)
+{
+	return pwrseq->drvdata;
+}
+EXPORT_SYMBOL_GPL(pwrseq_device_get_data);
+
+struct pwrseq_match_data {
+	struct pwrseq_device *matched;
+	struct device *dev;
+};
+
+static int pwrseq_match_device(struct device *pwrseq_dev, void *data)
+{
+	struct pwrseq_device *pwrseq = to_pwrseq_device(pwrseq_dev);
+	struct pwrseq_match_data *match_data = data;
+	int ret;
+
+	guard(rwsem_read)(&pwrseq->dev_sem);
+	if (!device_is_registered(&pwrseq->dev))
+		return 0;
+
+	ret = pwrseq->match(pwrseq, match_data->dev);
+	if (ret <= 0)
+		return ret;
+
+	match_data->matched = pwrseq;
+
+	return 1;
+}
+
+/**
+ * pwrseq_get() - Get the power sequencer associated with this device.
+ * @dev: Device for which to get the sequencer.
+ *
+ * Returns:
+ * New power sequencer descriptor for use by the consumer driver or ERR_PTR()
+ * on failure.
+ */
+struct pwrseq_desc *pwrseq_get(struct device *dev)
+{
+	struct pwrseq_match_data match_data;
+	struct pwrseq_device *pwrseq;
+	int ret;
+
+	struct pwrseq_desc *desc __free(kfree) = kzalloc(sizeof(*desc),
+							 GFP_KERNEL);
+	if (!desc)
+		return ERR_PTR(-ENOMEM);
+
+	match_data.matched = NULL;
+	match_data.dev = dev;
+
+	guard(rwsem_read)(&pwrseq_sem);
+
+	ret = bus_for_each_dev(&pwrseq_bus, NULL, &match_data,
+			       pwrseq_match_device);
+	if (ret < 0)
+		return ERR_PTR(ret);
+	if (ret == 0)
+		/* No device matched. */
+		return ERR_PTR(-EPROBE_DEFER);
+
+	pwrseq = match_data.matched;
+
+	if (!try_module_get(pwrseq->owner))
+		return ERR_PTR(-EPROBE_DEFER);
+
+	desc->pwrseq = pwrseq_device_get(pwrseq);
+
+	return no_free_ptr(desc);
+}
+EXPORT_SYMBOL_GPL(pwrseq_get);
+
+/**
+ * pwrseq_put() - Release the power sequencer descriptor.
+ * @desc: Descriptor to release.
+ */
+void pwrseq_put(struct pwrseq_desc *desc)
+{
+	struct pwrseq_device *pwrseq;
+
+	if (!desc)
+		return;
+
+	pwrseq = desc->pwrseq;
+
+	if (desc->powered_up)
+		pwrseq_power_off(desc);
+
+	kfree(desc);
+	module_put(pwrseq->owner);
+	pwrseq_device_put(pwrseq);
+}
+EXPORT_SYMBOL_GPL(pwrseq_put);
+
+static void devm_pwrseq_put(void *data)
+{
+	struct pwrseq_desc *desc = data;
+
+	pwrseq_put(desc);
+}
+
+/**
+ * devm_pwrseq_get() - Managed variant of pwrseq_get().
+ * @dev: Device for which to get the sequencer and which also manages its
+ *       lifetime.
+ *
+ * Returns:
+ * New power sequencer descriptor for use by the consumer driver or ERR_PTR()
+ * on failure.
+ */
+struct pwrseq_desc *devm_pwrseq_get(struct device *dev)
+{
+	struct pwrseq_desc *desc;
+	int ret;
+
+	desc = pwrseq_get(dev);
+	if (IS_ERR(desc))
+		return desc;
+
+	ret = devm_add_action_or_reset(dev, devm_pwrseq_put, desc);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return desc;
+}
+EXPORT_SYMBOL_GPL(devm_pwrseq_get);
+
+/**
+ * pwrseq_power_on() - Issue a power-on request on behalf of the consumer
+ *                     device.
+ * @desc: Descriptor referencing the power sequencer.
+ *
+ * This function tells the power sequencer that the consumer wants to be
+ * powered-up. The sequencer may already have powered-up the device in which
+ * case the function returns 0. If the power-up sequence is already in
+ * progress, the function will block until it's done and return 0. If this is
+ * the first request, the device will be powered up.
+ *
+ * Returns:
+ * 0 on success, negative error number on failure.
+ */
+int pwrseq_power_on(struct pwrseq_desc *desc)
+{
+	struct pwrseq_device *pwrseq;
+	int ret;
+
+	might_sleep();
+
+	if (!desc || desc->powered_up)
+		return 0;
+
+	pwrseq = desc->pwrseq;
+
+	guard(rwsem_read)(&pwrseq->dev_sem);
+	if (!device_is_registered(&pwrseq->dev))
+		return -ENODEV;
+
+	guard(mutex)(&pwrseq->state_lock);
+
+	pwrseq->pwrup_count++;
+	if (pwrseq->pwrup_count != 1) {
+		desc->powered_up = true;
+		return 0;
+	}
+
+	ret = pwrseq->power_on(pwrseq);
+	if (!ret)
+		desc->powered_up = true;
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(pwrseq_power_on);
+
+/**
+ * pwrseq_power_off() - Issue a power-off request on behalf of the consumer
+ *                      device.
+ * @desc: Descriptor referencing the power sequencer.
+ *
+ * This undoes the effects of pwrseq_power_on(). It issues a power-off request
+ * on behalf of the consumer and when the last remaining user does so, the
+ * power-down sequence will be started. If one is in progress, the function
+ * will block until it's complete and then return.
+ *
+ * Returns:
+ * 0 on success, negative error number on failure.
+ */
+int pwrseq_power_off(struct pwrseq_desc *desc)
+{
+	struct pwrseq_device *pwrseq;
+	int ret;
+
+	might_sleep();
+
+	if (!desc || !desc->powered_up)
+		return 0;
+
+	pwrseq = desc->pwrseq;
+
+	guard(rwsem_read)(&pwrseq->dev_sem);
+	if (!device_is_registered(&pwrseq->dev))
+		return -ENODEV;
+
+	guard(mutex)(&pwrseq->state_lock);
+
+	if (pwrseq->pwrup_count == 0) {
+		WARN_ONCE(1, "Unmatched power-off\n");
+		return -EBUSY;
+	}
+
+	pwrseq->pwrup_count--;
+	if (pwrseq->pwrup_count != 0) {
+		desc->powered_up = false;
+		return 0;
+	}
+
+	ret = pwrseq->power_off(pwrseq);
+	if (!ret)
+		desc->powered_up = false;
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(pwrseq_power_off);
+
+static int __init pwrseq_init(void)
+{
+	int ret;
+
+	ret = bus_register(&pwrseq_bus);
+	if (ret) {
+		pr_err("Failed to register the power sequencer bus\n");
+		return ret;
+	}
+
+	return 0;
+}
+subsys_initcall(pwrseq_init);
+
+static void __exit pwrseq_exit(void)
+{
+	bus_unregister(&pwrseq_bus);
+}
+module_exit(pwrseq_exit);
+
+MODULE_AUTHOR("Bartosz Golaszewski <bartosz.golaszewski@linaro.org>");
+MODULE_DESCRIPTION("Power Sequencing subsystem core");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/pwrseq/consumer.h b/include/linux/pwrseq/consumer.h
new file mode 100644
index 000000000000..f207b8b2864d
--- /dev/null
+++ b/include/linux/pwrseq/consumer.h
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2024 Linaro Ltd.
+ */
+
+#ifndef __POWER_SEQUENCING_CONSUMER_H__
+#define __POWER_SEQUENCING_CONSUMER_H__
+
+#include <linux/err.h>
+
+struct device;
+struct pwrseq_desc;
+
+#if IS_ENABLED(CONFIG_POWER_SEQUENCING)
+
+struct pwrseq_desc * __must_check pwrseq_get(struct device *dev);
+void pwrseq_put(struct pwrseq_desc *desc);
+
+struct pwrseq_desc * __must_check devm_pwrseq_get(struct device *dev);
+
+int pwrseq_power_on(struct pwrseq_desc *desc);
+int pwrseq_power_off(struct pwrseq_desc *desc);
+
+#else /* CONFIG_POWER_SEQUENCING */
+
+static inline struct pwrseq_desc * __must_check pwrseq_get(struct device *dev)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline void pwrseq_put(struct pwrseq_desc *desc)
+{
+}
+
+static inline struct pwrseq_desc * __must_check
+devm_pwrseq_get(struct device *dev)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline int pwrseq_power_on(struct pwrseq_desc *desc)
+{
+	return -ENOSYS;
+}
+
+static inline int pwrseq_power_off(struct pwrseq_desc *desc)
+{
+	return -ENOSYS;
+}
+
+#endif /* CONFIG_POWER_SEQUENCING */
+
+#endif /* __POWER_SEQUENCING_CONSUMER_H__ */
diff --git a/include/linux/pwrseq/provider.h b/include/linux/pwrseq/provider.h
new file mode 100644
index 000000000000..8696a89afa43
--- /dev/null
+++ b/include/linux/pwrseq/provider.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2024 Linaro Ltd.
+ */
+
+#ifndef __POWER_SEQUENCING_PROVIDER_H__
+#define __POWER_SEQUENCING_PROVIDER_H__
+
+struct device;
+struct module;
+struct pwrseq_device;
+
+typedef int (*pwrseq_power_state_func)(struct pwrseq_device *);
+typedef int (*pwrseq_match_func)(struct pwrseq_device *, struct device *);
+
+/**
+ * struct pwrseq_config - Configuration used for registering a new provider.
+ * @parent: Parent device for the sequencer.
+ * @owner: Module providing this device.
+ * @drvdata: Private driver data.
+ * @match: Provider callback used to match the consumer device to the sequencer.
+ * @power_on: Callback running the power-on sequence.
+ * @power_off: Callback running the power-off sequence.
+ */
+struct pwrseq_config {
+	struct device *parent;
+	struct module *owner;
+	void *drvdata;
+	pwrseq_match_func match;
+	pwrseq_power_state_func power_on;
+	pwrseq_power_state_func power_off;
+};
+
+struct pwrseq_device *pwrseq_device_register(struct pwrseq_config *config);
+void pwrseq_device_unregister(struct pwrseq_device *pwrseq);
+struct pwrseq_device *
+devm_pwrseq_device_register(struct device *dev, struct pwrseq_config *config);
+
+void *pwrseq_device_get_data(struct pwrseq_device *pwrseq);
+
+#endif /* __POWER_SEQUENCING_PROVIDER_H__ */
