diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c
index b51ce108c1..3206f3d112 100644
--- a/drivers/core/regmap.c
+++ b/drivers/core/regmap.c
@@ -435,7 +435,36 @@ int regmap_raw_read(struct regmap *map, uint offset, void *valp, size_t val_len)
 
 int regmap_read(struct regmap *map, uint offset, uint *valp)
 {
-	return regmap_raw_read(map, offset, valp, map->width);
+	union {
+		u8 v8;
+		u16 v16;
+		u32 v32;
+		u64 v64;
+	} u;
+	int res;
+
+	res = regmap_raw_read(map, offset, &u, map->width);
+	if (res)
+		return res;
+
+	switch (map->width) {
+	case REGMAP_SIZE_8:
+		*valp = u.v8;
+		break;
+	case REGMAP_SIZE_16:
+		*valp = u.v16;
+		break;
+	case REGMAP_SIZE_32:
+		*valp = u.v32;
+		break;
+	case REGMAP_SIZE_64:
+		*valp = u.v64;
+		break;
+	default:
+		unreachable();
+	}
+
+	return 0;
 }
 
 static inline void __write_8(u8 *addr, const u8 *val,
@@ -546,7 +575,33 @@ int regmap_raw_write(struct regmap *map, uint offset, const void *val,
 
 int regmap_write(struct regmap *map, uint offset, uint val)
 {
-	return regmap_raw_write(map, offset, &val, map->width);
+	union {
+		u8 v8;
+		u16 v16;
+		u32 v32;
+		u64 v64;
+	} u;
+
+	switch (map->width) {
+	case REGMAP_SIZE_8:
+		u.v8 = val;
+		break;
+	case REGMAP_SIZE_16:
+		u.v16 = val;
+		break;
+	case REGMAP_SIZE_32:
+		u.v32 = val;
+		break;
+	case REGMAP_SIZE_64:
+		u.v64 = val;
+		break;
+	default:
+		debug("%s: regmap size %zu unknown\n", __func__,
+		      (size_t)map->width);
+		return -EINVAL;
+	}
+
+	return regmap_raw_write(map, offset, &u, map->width);
 }
 
 int regmap_update_bits(struct regmap *map, uint offset, uint mask, uint val)