diff --git a/drivers/mfd/wm8350-regmap.c b/drivers/mfd/wm8350-regmap.c
index e965139..7974cad 100644
--- a/drivers/mfd/wm8350-regmap.c
+++ b/drivers/mfd/wm8350-regmap.c
@@ -3433,3 +3433,59 @@
 	{ 0x0000, 0x0000, 0x0000 }, /* R254 */
 	{ 0x0000, 0x0000, 0x0000 }, /* R255 */
 };
+
+static bool wm8350_readable(struct device *dev, unsigned int reg)
+{
+	return wm8350_reg_io_map[reg].readable;
+}
+
+static bool wm8350_writeable(struct device *dev, unsigned int reg)
+{
+	struct wm8350 *wm8350 = dev_get_drvdata(dev);
+
+	if (!wm8350->unlocked) {
+		if ((reg >= WM8350_GPIO_FUNCTION_SELECT_1 &&
+		     reg <= WM8350_GPIO_FUNCTION_SELECT_4) ||
+		    (reg >= WM8350_BATTERY_CHARGER_CONTROL_1 &&
+		     reg <= WM8350_BATTERY_CHARGER_CONTROL_3))
+			return false;
+	}
+
+	return wm8350_reg_io_map[reg].writable;
+}
+
+static bool wm8350_volatile(struct device *dev, unsigned int reg)
+{
+	return wm8350_reg_io_map[reg].vol;
+}
+
+static bool wm8350_precious(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case WM8350_SYSTEM_INTERRUPTS:
+	case WM8350_INT_STATUS_1:
+	case WM8350_INT_STATUS_2:
+	case WM8350_POWER_UP_INT_STATUS:
+	case WM8350_UNDER_VOLTAGE_INT_STATUS:
+	case WM8350_OVER_CURRENT_INT_STATUS:
+	case WM8350_GPIO_INT_STATUS:
+	case WM8350_COMPARATOR_INT_STATUS:
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+const struct regmap_config wm8350_regmap = {
+	.reg_bits = 8,
+	.val_bits = 16,
+
+	.cache_type = REGCACHE_RBTREE,
+
+	.max_register = WM8350_MAX_REGISTER,
+	.readable_reg = wm8350_readable,
+	.writeable_reg = wm8350_writeable,
+	.volatile_reg = wm8350_volatile,
+	.precious_reg = wm8350_precious,
+};