diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 5569a2029dab..f5245c5fe1af 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -403,6 +403,13 @@ config HOLTEK_FF
 	  Say Y here if you have a Holtek On Line Grip based game controller
 	  and want to have force feedback support for it.
 
+config HID_VIVALDI_COMMON
+	tristate
+	help
+	  ChromeOS Vivaldi HID parsing support library. This is a hidden
+	  option so that drivers can use common code to parse the HID
+	  descriptors for vivaldi function row keymap.
+
 config HID_GOOGLE_HAMMER
 	tristate "Google Hammer Keyboard"
 	depends on USB_HID && LEDS_CLASS && CROS_EC
@@ -411,6 +418,7 @@ config HID_GOOGLE_HAMMER
 
 config HID_VIVALDI
 	tristate "Vivaldi Keyboard"
+	select HID_VIVALDI_COMMON
 	select INPUT_VIVALDIFMAP
 	depends on HID
 	help
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 6d3e630e81af..469a6159ebae 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_HID_FT260)		+= hid-ft260.o
 obj-$(CONFIG_HID_GEMBIRD)	+= hid-gembird.o
 obj-$(CONFIG_HID_GFRM)		+= hid-gfrm.o
 obj-$(CONFIG_HID_GLORIOUS)  += hid-glorious.o
+obj-$(CONFIG_HID_VIVALDI_COMMON) += hid-vivaldi-common.o
 obj-$(CONFIG_HID_GOOGLE_HAMMER)	+= hid-google-hammer.o
 obj-$(CONFIG_HID_VIVALDI)	+= hid-vivaldi.o
 obj-$(CONFIG_HID_GT683R)	+= hid-gt683r.o
diff --git a/drivers/hid/hid-vivaldi-common.c b/drivers/hid/hid-vivaldi-common.c
new file mode 100644
index 000000000000..c88b26f4c78b
--- /dev/null
+++ b/drivers/hid/hid-vivaldi-common.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Helpers for ChromeOS HID Vivaldi keyboards
+ *
+ * Copyright (C) 2022 Google, Inc
+ */
+
+#include <linux/export.h>
+#include <linux/hid.h>
+#include <linux/input/vivaldi-fmap.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "hid-vivaldi-common.h"
+
+#define MIN_FN_ROW_KEY 1
+#define MAX_FN_ROW_KEY VIVALDI_MAX_FUNCTION_ROW_KEYS
+#define HID_VD_FN_ROW_PHYSMAP 0x00000001
+#define HID_USAGE_FN_ROW_PHYSMAP (HID_UP_GOOGLEVENDOR | HID_VD_FN_ROW_PHYSMAP)
+
+/**
+ * vivaldi_feature_mapping - Fill out vivaldi keymap data exposed via HID
+ * @hdev: HID device to parse
+ * @field: HID field to parse
+ * @usage: HID usage to parse
+ *
+ * This function assumes that driver data attached to @hdev contains an
+ * instance of &struct vivaldi_data in the very beginning.
+ */
+void vivaldi_feature_mapping(struct hid_device *hdev,
+			     struct hid_field *field, struct hid_usage *usage)
+{
+	struct vivaldi_data *data = hid_get_drvdata(hdev);
+	struct hid_report *report = field->report;
+	u8 *report_data, *buf;
+	u32 report_len;
+	unsigned int fn_key;
+	int ret;
+
+	if (field->logical != HID_USAGE_FN_ROW_PHYSMAP ||
+	    (usage->hid & HID_USAGE_PAGE) != HID_UP_ORDINAL)
+		return;
+
+	fn_key = usage->hid & HID_USAGE;
+	if (fn_key < MIN_FN_ROW_KEY || fn_key > MAX_FN_ROW_KEY)
+		return;
+
+	if (fn_key > data->num_function_row_keys)
+		data->num_function_row_keys = fn_key;
+
+	report_data = buf = hid_alloc_report_buf(report, GFP_KERNEL);
+	if (!report_data)
+		return;
+
+	report_len = hid_report_len(report);
+	if (!report->id) {
+		/*
+		 * hid_hw_raw_request() will stuff report ID (which will be 0)
+		 * into the first byte of the buffer even for unnumbered
+		 * reports, so we need to account for this to avoid getting
+		 * -EOVERFLOW in return.
+		 * Note that hid_alloc_report_buf() adds 7 bytes to the size
+		 * so we can safely say that we have space for an extra byte.
+		 */
+		report_len++;
+	}
+
+	ret = hid_hw_raw_request(hdev, report->id, report_data,
+				 report_len, HID_FEATURE_REPORT,
+				 HID_REQ_GET_REPORT);
+	if (ret < 0) {
+		dev_warn(&hdev->dev, "failed to fetch feature %d\n",
+			 field->report->id);
+		goto out;
+	}
+
+	if (!report->id) {
+		/*
+		 * Undo the damage from hid_hw_raw_request() for unnumbered
+		 * reports.
+		 */
+		report_data++;
+		report_len--;
+	}
+
+	ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, report_data,
+				   report_len, 0);
+	if (ret) {
+		dev_warn(&hdev->dev, "failed to report feature %d\n",
+			 field->report->id);
+		goto out;
+	}
+
+	data->function_row_physmap[fn_key - MIN_FN_ROW_KEY] =
+		field->value[usage->usage_index];
+
+out:
+	kfree(buf);
+}
+EXPORT_SYMBOL_GPL(vivaldi_feature_mapping);
+
+static ssize_t function_row_physmap_show(struct device *dev,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	struct hid_device *hdev = to_hid_device(dev);
+	struct vivaldi_data *data = hid_get_drvdata(hdev);
+
+	return vivaldi_function_row_physmap_show(data, buf);
+}
+
+static DEVICE_ATTR_RO(function_row_physmap);
+static struct attribute *vivaldi_sysfs_attrs[] = {
+	&dev_attr_function_row_physmap.attr,
+	NULL
+};
+
+static const struct attribute_group vivaldi_attribute_group = {
+	.attrs = vivaldi_sysfs_attrs,
+};
+
+/**
+ * vivaldi_feature_mapping - Complete initialization of device using vivaldi map
+ * @hdev: HID device to witch vivaldi attributes should be attached
+ * @hidinput: HID input device (unused).
+ */
+int vivaldi_input_configured(struct hid_device *hdev,
+			     struct hid_input *hidinput)
+{
+	struct vivaldi_data *data = hid_get_drvdata(hdev);
+
+	if (!data->num_function_row_keys)
+		return 0;
+
+	return devm_device_add_group(&hdev->dev, &vivaldi_attribute_group);
+}
+EXPORT_SYMBOL_GPL(vivaldi_input_configured);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-vivaldi-common.h b/drivers/hid/hid-vivaldi-common.h
new file mode 100644
index 000000000000..37bc9b3e4f27
--- /dev/null
+++ b/drivers/hid/hid-vivaldi-common.h
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef _HID_VIVALDI_COMMON_H
+#define _HID_VIVALDI_COMMON_H
+
+struct hid_device;
+struct hid_field;
+struct hid_input;
+struct hid_usage;
+
+void vivaldi_feature_mapping(struct hid_device *hdev,
+			     struct hid_field *field, struct hid_usage *usage);
+
+int vivaldi_input_configured(struct hid_device *hdev,
+			     struct hid_input *hidinput);
+
+#endif /* _HID_VIVALDI_COMMON_H */
diff --git a/drivers/hid/hid-vivaldi.c b/drivers/hid/hid-vivaldi.c
index ca8cb40928e6..3a979123e7d3 100644
--- a/drivers/hid/hid-vivaldi.c
+++ b/drivers/hid/hid-vivaldi.c
@@ -11,32 +11,8 @@
 #include <linux/input/vivaldi-fmap.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/sysfs.h>
 
-#define MIN_FN_ROW_KEY 1
-#define MAX_FN_ROW_KEY VIVALDI_MAX_FUNCTION_ROW_KEYS
-#define HID_VD_FN_ROW_PHYSMAP 0x00000001
-#define HID_USAGE_FN_ROW_PHYSMAP (HID_UP_GOOGLEVENDOR | HID_VD_FN_ROW_PHYSMAP)
-
-static ssize_t function_row_physmap_show(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	struct hid_device *hdev = to_hid_device(dev);
-	struct vivaldi_data *drvdata = hid_get_drvdata(hdev);
-
-	return vivaldi_function_row_physmap_show(drvdata, buf);
-}
-
-static DEVICE_ATTR_RO(function_row_physmap);
-static struct attribute *sysfs_attrs[] = {
-	&dev_attr_function_row_physmap.attr,
-	NULL
-};
-
-static const struct attribute_group input_attribute_group = {
-	.attrs = sysfs_attrs
-};
+#include "hid-vivaldi-common.h"
 
 static int vivaldi_probe(struct hid_device *hdev,
 			 const struct hid_device_id *id)
@@ -57,86 +33,8 @@ static int vivaldi_probe(struct hid_device *hdev,
 	return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 }
 
-static void vivaldi_feature_mapping(struct hid_device *hdev,
-				    struct hid_field *field,
-				    struct hid_usage *usage)
-{
-	struct vivaldi_data *drvdata = hid_get_drvdata(hdev);
-	struct hid_report *report = field->report;
-	int fn_key;
-	int ret;
-	u32 report_len;
-	u8 *report_data, *buf;
-
-	if (field->logical != HID_USAGE_FN_ROW_PHYSMAP ||
-	    (usage->hid & HID_USAGE_PAGE) != HID_UP_ORDINAL)
-		return;
-
-	fn_key = usage->hid & HID_USAGE;
-	if (fn_key < MIN_FN_ROW_KEY || fn_key > MAX_FN_ROW_KEY)
-		return;
-	if (fn_key > drvdata->num_function_row_keys)
-		drvdata->num_function_row_keys = fn_key;
-
-	report_data = buf = hid_alloc_report_buf(report, GFP_KERNEL);
-	if (!report_data)
-		return;
-
-	report_len = hid_report_len(report);
-	if (!report->id) {
-		/*
-		 * hid_hw_raw_request() will stuff report ID (which will be 0)
-		 * into the first byte of the buffer even for unnumbered
-		 * reports, so we need to account for this to avoid getting
-		 * -EOVERFLOW in return.
-		 * Note that hid_alloc_report_buf() adds 7 bytes to the size
-		 * so we can safely say that we have space for an extra byte.
-		 */
-		report_len++;
-	}
-
-	ret = hid_hw_raw_request(hdev, report->id, report_data,
-				 report_len, HID_FEATURE_REPORT,
-				 HID_REQ_GET_REPORT);
-	if (ret < 0) {
-		dev_warn(&hdev->dev, "failed to fetch feature %d\n",
-			 field->report->id);
-		goto out;
-	}
-
-	if (!report->id) {
-		/*
-		 * Undo the damage from hid_hw_raw_request() for unnumbered
-		 * reports.
-		 */
-		report_data++;
-		report_len--;
-	}
-
-	ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, report_data,
-				   report_len, 0);
-	if (ret) {
-		dev_warn(&hdev->dev, "failed to report feature %d\n",
-			 field->report->id);
-		goto out;
-	}
-
-	drvdata->function_row_physmap[fn_key - MIN_FN_ROW_KEY] =
-	    field->value[usage->usage_index];
-
-out:
-	kfree(buf);
-}
-
-static int vivaldi_input_configured(struct hid_device *hdev,
-				    struct hid_input *hidinput)
-{
-	return devm_device_add_group(&hdev->dev, &input_attribute_group);
-}
-
 static const struct hid_device_id vivaldi_table[] = {
-	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_VIVALDI, HID_ANY_ID,
-		     HID_ANY_ID) },
+	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_VIVALDI, HID_ANY_ID, HID_ANY_ID) },
 	{ }
 };
 
