diff --git a/MAINTAINERS b/MAINTAINERS
index 97f51d5ec1cf..3218d8694735 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22031,6 +22031,13 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/toshiba-wmi.c
 
+TOUCH OVERLAY
+M:	Javier Carrasco <javier.carrasco@wolfvision.net>
+L:	linux-input@vger.kernel.org
+S:	Maintained
+F:	drivers/input/touch-overlay.c
+F:	include/linux/input/touch-overlay.h
+
 TPM DEVICE DRIVER
 M:	Peter Huewe <peterhuewe@gmx.de>
 M:	Jarkko Sakkinen <jarkko@kernel.org>
diff --git a/drivers/input/Makefile b/drivers/input/Makefile
index c78753274921..393e9f4d00dc 100644
--- a/drivers/input/Makefile
+++ b/drivers/input/Makefile
@@ -7,7 +7,7 @@
 
 obj-$(CONFIG_INPUT)		+= input-core.o
 input-core-y := input.o input-compat.o input-mt.o input-poller.o ff-core.o
-input-core-y += touchscreen.o
+input-core-y += touchscreen.o touch-overlay.o
 
 obj-$(CONFIG_INPUT_FF_MEMLESS)	+= ff-memless.o
 obj-$(CONFIG_INPUT_SPARSEKMAP)	+= sparse-keymap.o
diff --git a/drivers/input/touch-overlay.c b/drivers/input/touch-overlay.c
new file mode 100644
index 000000000000..0a0646ceb755
--- /dev/null
+++ b/drivers/input/touch-overlay.c
@@ -0,0 +1,283 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Helper functions for overlay objects on touchscreens
+ *
+ *  Copyright (c) 2023 Javier Carrasco <javier.carrasco@wolfvision.net>
+ */
+
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/input/touch-overlay.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/property.h>
+
+struct button {
+	u32 key;
+	bool pressed;
+	int slot;
+};
+
+struct touch_overlay_segment {
+	struct list_head list;
+	u32 x_origin;
+	u32 y_origin;
+	u32 x_size;
+	u32 y_size;
+	struct button *btn;
+};
+
+static int touch_overlay_get_segment(struct fwnode_handle *segment_node,
+				     struct touch_overlay_segment *segment,
+				     struct input_dev *keypad,
+				     struct device *dev)
+{
+	int error;
+
+	error = fwnode_property_read_u32(segment_node, "x-origin",
+					 &segment->x_origin);
+	if (error)
+		return error;
+
+	error = fwnode_property_read_u32(segment_node, "y-origin",
+					 &segment->y_origin);
+	if (error)
+		return error;
+
+	error = fwnode_property_read_u32(segment_node, "x-size",
+					 &segment->x_size);
+	if (error)
+		return error;
+
+	error = fwnode_property_read_u32(segment_node, "y-size",
+					 &segment->y_size);
+	if (error)
+		return error;
+
+	if (fwnode_property_present(segment_node, "linux,code")) {
+		segment->btn = devm_kzalloc(dev, sizeof(*segment->btn),
+					    GFP_KERNEL);
+		if (!segment->btn)
+			return -ENOMEM;
+
+		error = fwnode_property_read_u32(segment_node, "linux,code",
+						 &segment->btn->key);
+		if (error)
+			return error;
+
+		input_set_capability(keypad, EV_KEY, segment->btn->key);
+	}
+
+	return 0;
+}
+
+/**
+ * touch_overlay_map - map overlay objects from the device tree and set
+ * key capabilities if buttons are defined.
+ * @list: pointer to the list that will hold the segments
+ * @keypad: pointer to the already allocated input_dev
+ *
+ * Returns 0 on success and error number otherwise.
+ *
+ * If a keypad input device is provided and overlay buttons are defined,
+ * its button capabilities are set accordingly.
+ */
+int touch_overlay_map(struct list_head *list, struct input_dev *keypad)
+{
+	struct fwnode_handle *overlay, *fw_segment;
+	struct device *dev = keypad->dev.parent;
+	struct touch_overlay_segment *segment;
+	int error;
+
+	overlay = device_get_named_child_node(dev, "touch-overlay");
+	if (!overlay)
+		return 0;
+
+	fwnode_for_each_child_node(overlay, fw_segment) {
+		segment = devm_kzalloc(dev, sizeof(*segment), GFP_KERNEL);
+		if (!segment) {
+			error = -ENOMEM;
+			goto put_overlay;
+		}
+		error = touch_overlay_get_segment(fw_segment, segment, keypad,
+						  dev);
+		if (error)
+			goto put_overlay;
+
+		list_add_tail(&segment->list, list);
+	}
+
+put_overlay:
+	fwnode_handle_put(overlay);
+	return error;
+}
+EXPORT_SYMBOL(touch_overlay_map);
+
+/**
+ * touch_overlay_get_touchscreen_abs - get abs size from the touchscreen area.
+ * @list: pointer to the list that holds the segments
+ * @x: horizontal abs
+ * @y: vertical abs
+ */
+void touch_overlay_get_touchscreen_abs(struct list_head *list, u16 *x, u16 *y)
+{
+	struct touch_overlay_segment *segment;
+	struct list_head *ptr;
+
+	list_for_each(ptr, list) {
+		segment = list_entry(ptr, struct touch_overlay_segment, list);
+		if (!segment->btn) {
+			*x = segment->x_size - 1;
+			*y = segment->y_size - 1;
+			break;
+		}
+	}
+}
+EXPORT_SYMBOL(touch_overlay_get_touchscreen_abs);
+
+static bool touch_overlay_segment_event(struct touch_overlay_segment *seg,
+					u32 x, u32 y)
+{
+	if (!seg)
+		return false;
+
+	if (x >= seg->x_origin && x < (seg->x_origin + seg->x_size) &&
+	    y >= seg->y_origin && y < (seg->y_origin + seg->y_size))
+		return true;
+
+	return false;
+}
+
+/**
+ * touch_overlay_mapped_touchscreen - check if a touchscreen area is mapped
+ * @list: pointer to the list that holds the segments
+ *
+ * Returns true if a touchscreen area is mapped or false otherwise.
+ */
+bool touch_overlay_mapped_touchscreen(struct list_head *list)
+{
+	struct touch_overlay_segment *segment;
+	struct list_head *ptr;
+
+	list_for_each(ptr, list) {
+		segment = list_entry(ptr, struct touch_overlay_segment, list);
+		if (!segment->btn)
+			return true;
+	}
+
+	return false;
+}
+EXPORT_SYMBOL(touch_overlay_mapped_touchscreen);
+
+/**
+ * touch_overlay_mapped_buttons - check if overlay buttons are mapped
+ * @list: pointer to the list that holds the segments
+ *
+ * Returns true if overlay buttons mapped or false otherwise.
+ */
+bool touch_overlay_mapped_buttons(struct list_head *list)
+{
+	struct touch_overlay_segment *segment;
+	struct list_head *ptr;
+
+	list_for_each(ptr, list) {
+		segment = list_entry(ptr, struct touch_overlay_segment, list);
+		if (segment->btn)
+			return true;
+	}
+
+	return false;
+}
+EXPORT_SYMBOL(touch_overlay_mapped_buttons);
+
+static bool touch_overlay_mt_on_touchscreen(struct list_head *list,
+					    u32 *x, u32 *y)
+{
+	struct touch_overlay_segment *segment;
+	bool contact = x && y;
+	struct list_head *ptr;
+
+	/* Let the caller handle events with no coordinates (release) */
+	if (!contact)
+		return false;
+
+	list_for_each(ptr, list) {
+		segment = list_entry(ptr, struct touch_overlay_segment, list);
+		if (!segment->btn &&
+		    touch_overlay_segment_event(segment, *x, *y)) {
+			*x -= segment->x_origin;
+			*y -= segment->y_origin;
+			return true;
+		}
+	}
+
+	return false;
+}
+
+static bool touch_overlay_button_event(struct input_dev *input,
+				       struct touch_overlay_segment *segment,
+				       const u32 *x, const u32 *y, u32 slot)
+{
+	bool contact = x && y;
+
+	if (!contact && segment->btn->pressed && segment->btn->slot == slot) {
+		segment->btn->pressed = false;
+		input_report_key(input, segment->btn->key, false);
+		input_sync(input);
+		return true;
+	} else if (contact && touch_overlay_segment_event(segment, *x, *y)) {
+		segment->btn->pressed = true;
+		segment->btn->slot = slot;
+		input_report_key(input, segment->btn->key, true);
+		input_sync(input);
+		return true;
+	}
+
+	return false;
+}
+
+/**
+ * touch_overlay_process_event - process input events according to the overlay
+ * mapping. This function acts as a filter to release the calling driver from
+ * the events that are either related to overlay buttons or out of the overlay
+ * touchscreen area if defined.
+ * @list: pointer to the list that holds the segments
+ * @input: pointer to the input device associated to the event
+ * @x: pointer to the x coordinate (NULL if not available - no contact)
+ * @y: pointer to the y coordinate (NULL if not available - no contact)
+ * @slot: slot associated to the event
+ *
+ * Returns true if the event was processed (reported for valid key events
+ * and dropped for events outside the overlay touchscreen area) or false
+ * if the event must be processed by the caller. In that case this function
+ * shifts the (x,y) coordinates to the overlay touchscreen axis if required.
+ */
+bool touch_overlay_process_event(struct list_head *list,
+				 struct input_dev *input,
+				 u32 *x, u32 *y, u32 slot)
+{
+	struct touch_overlay_segment *segment;
+	struct list_head *ptr;
+
+	/*
+	 * buttons must be prioritized over overlay touchscreens to account for
+	 * overlappings e.g. a button inside the touchscreen area.
+	 */
+	list_for_each(ptr, list) {
+		segment = list_entry(ptr, struct touch_overlay_segment, list);
+		if (segment->btn &&
+		    touch_overlay_button_event(input, segment, x, y, slot)) {
+			return true;
+		}
+	}
+
+	/*
+	 * valid touch events on the overlay touchscreen are left for the client
+	 * to be processed/reported according to its (possibly) unique features.
+	 */
+	return !touch_overlay_mt_on_touchscreen(list, x, y);
+}
+EXPORT_SYMBOL(touch_overlay_process_event);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Helper functions for overlay objects on touch devices");
diff --git a/include/linux/input/touch-overlay.h b/include/linux/input/touch-overlay.h
new file mode 100644
index 000000000000..df974eb46dd4
--- /dev/null
+++ b/include/linux/input/touch-overlay.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2023 Javier Carrasco <javier.carrasco@wolfvision.net>
+ */
+
+#ifndef _TOUCH_OVERLAY
+#define _TOUCH_OVERLAY
+
+#include <linux/types.h>
+
+struct input_dev;
+
+int touch_overlay_map(struct list_head *list, struct input_dev *keypad);
+
+void touch_overlay_get_touchscreen_abs(struct list_head *list, u16 *x, u16 *y);
+
+bool touch_overlay_mapped_touchscreen(struct list_head *list);
+
+bool touch_overlay_mapped_buttons(struct list_head *list);
+
+bool touch_overlay_process_event(struct list_head *list, struct input_dev *input,
+				 u32 *x, u32 *y, u32 slot);
+
+#endif
