regmap: merge regmap_update_bits() into macro

Current regmap has many similar update functions like below,
but the difference is very few.
	regmap_update_bits()
	regmap_update_bits_async()
	regmap_update_bits_check()
	regmap_update_bits_check_async()
Furthermore, we can add *force* write option too in the future.

This patch merges regmap_update_bits() into macro
by using regmap_update_bits_base().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 28e50a3..500b36c 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -65,6 +65,9 @@
 	unsigned int delay_us;
 };
 
+#define	regmap_update_bits(map, reg, mask, val) \
+	regmap_update_bits_base(map, reg, mask, val, NULL, false, false)
+
 #ifdef CONFIG_REGMAP
 
 enum regmap_endian {
@@ -694,8 +697,6 @@
 int regmap_update_bits_base(struct regmap *map, unsigned int reg,
 			    unsigned int mask, unsigned int val,
 			    bool *change, bool async, bool force);
-int regmap_update_bits(struct regmap *map, unsigned int reg,
-		       unsigned int mask, unsigned int val);
 int regmap_write_bits(struct regmap *map, unsigned int reg,
 		       unsigned int mask, unsigned int val);
 int regmap_update_bits_async(struct regmap *map, unsigned int reg,
@@ -948,13 +949,6 @@
 	return -EINVAL;
 }
 
-static inline int regmap_update_bits(struct regmap *map, unsigned int reg,
-				     unsigned int mask, unsigned int val)
-{
-	WARN_ONCE(1, "regmap API is disabled");
-	return -EINVAL;
-}
-
 static inline int regmap_write_bits(struct regmap *map, unsigned int reg,
 				     unsigned int mask, unsigned int val)
 {