[PATCH] arm64: dts: rockchip: rk3399: Add xin32k clk

[Derek Basehore]

This adds the xin32k clock to the RK3399 CPU. Even though it's not
directly used, muxes will end up traversing the entire clk tree on
calls to determine_rate if it doesn't exist.

Signed-off-by: Derek Basehore <dbaseh...@chromium.org>
---
 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi 
b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 99e7f65c1779..3d09472978f8 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -191,6 +191,13 @@
                #clock-cells = <0>;
        };
 
+       ap_rtc_clk: ap-rtc-clk {
+               compatible = "fixed-clock";
+               clock-frequency = <32768>;
+               clock-output-names = "xin32k";
+               #clock-cells = <0>;
+       };
+
        amba {
                compatible = "simple-bus";
                #address-cells = <2>;
-- 
2.19.1.1215.g8438c0b245-goog