ARM: dts: sun7i: external clock outputs

This commit adds the two external clock outputs available on A20 to
its device tree. A dummy fixed factor clock is also added to serve as
the first input of the clock outputs, which according to AW's A20 user
manual, is the 24MHz oscillator divided by 750.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index edad6f14c52574b938b6c88f7ee3e935c674efcc..0d5499808b3a31b0cd9fb9f2d4c57886adfb7a28 100644 (file)
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -303,6 +303,34 @@
                        clocks = <&osc24M>, <&pll6 2>, <&pll5 1>;
                        clock-output-names = "mbus";
                };
+
+               /*
+                * Dummy clock used by output clocks
+                */
+               osc24M_32k: clk@1 {
+                       #clock-cells = <0>;
+                       compatible = "fixed-factor-clock";
+                       clock-div = <750>;
+                       clock-mult = <1>;
+                       clocks = <&osc24M>;
+                       clock-output-names = "osc24M_32k";
+               };
+
+               clk_out_a: clk@01c201f0 {
+                       #clock-cells = <0>;
+                       compatible = "allwinner,sun7i-a20-out-clk";
+                       reg = <0x01c201f0 0x4>;
+                       clocks = <&osc24M_32k>, <&osc32k>, <&osc24M>;
+                       clock-output-names = "clk_out_a";
+               };
+
+               clk_out_b: clk@01c201f4 {
+                       #clock-cells = <0>;
+                       compatible = "allwinner,sun7i-a20-out-clk";
+                       reg = <0x01c201f4 0x4>;
+                       clocks = <&osc24M_32k>, <&osc32k>, <&osc24M>;
+                       clock-output-names = "clk_out_b";
+               };
        };
 
        soc@01c00000 {