clk: sunxi-ng: Add A23 CCU

Add support for the clock unit found in the A23. Due to the similarities
with the A33, it also shares its clock IDs to allow sharing the DTSI.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>

Documentation/devicetree/bindings/clock/sunxi-ccu.txt

@@ -4,6 +4,7 @@ Allwinner Clock Control Unit Binding
 Required properties :
 - compatible: must contain one of the following compatibles:
 		- "allwinner,sun6i-a31-ccu"
+		- "allwinner,sun8i-a23-ccu"
 		- "allwinner,sun8i-a33-ccu"
 		- "allwinner,sun8i-h3-ccu"
 

drivers/clk/sunxi-ng/Kconfig

@@ -65,6 +65,18 @@ config SUN6I_A31_CCU
 	select SUNXI_CCU_PHASE
 	default MACH_SUN6I
 
+config SUN8I_A23_CCU
+	bool "Support for the Allwinner A23 CCU"
+	select SUNXI_CCU_DIV
+	select SUNXI_CCU_MULT
+	select SUNXI_CCU_NK
+	select SUNXI_CCU_NKM
+	select SUNXI_CCU_NKMP
+	select SUNXI_CCU_NM
+	select SUNXI_CCU_MP
+	select SUNXI_CCU_PHASE
+	default MACH_SUN8I
+
 config SUN8I_A33_CCU
 	bool "Support for the Allwinner A33 CCU"
 	select SUNXI_CCU_DIV

drivers/clk/sunxi-ng/Makefile

@@ -19,5 +19,6 @@ obj-$(CONFIG_SUNXI_CCU_MP)	+= ccu_mp.o
 
 # SoC support
 obj-$(CONFIG_SUN6I_A31_CCU)	+= ccu-sun6i-a31.o
+obj-$(CONFIG_SUN8I_A23_CCU)	+= ccu-sun8i-a23.o
 obj-$(CONFIG_SUN8I_A33_CCU)	+= ccu-sun8i-a33.o
 obj-$(CONFIG_SUN8I_H3_CCU)	+= ccu-sun8i-h3.o