ARM: dts: r8a7778: Add missing clock-frequency for fixed clocks

"clock-frequency" is a required property for devices nodes compatible
with "fixed-clock", leading to warnings when running

    $ make dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/clock/fixed-clock.yaml
    arch/arm/boot/dts/r8a7778-bockw.dt.yaml: audio_clk_a: 'clock-frequency' is a required property
    arch/arm/boot/dts/r8a7778-bockw.dt.yaml: audio_clk_b: 'clock-frequency' is a required property
    arch/arm/boot/dts/r8a7778-bockw.dt.yaml: audio_clk_c: 'clock-frequency' is a required property

Fix this by adding the missing "clock-frequency" properties to the audio
clocks, to be overridden by board DTS files when populated.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191213162712.2056-1-geert+renesas@glider.be

diff --git a/arch/arm/boot/dts/r8a7778.dtsi b/arch/arm/boot/dts/r8a7778.dtsi
index 2be4c54ba067e2c98d4167e61ea5474fbcfa27e2..593c6df90303524d0ea912e2e989c8dd9280f03a 100644 (file)
--- a/arch/arm/boot/dts/r8a7778.dtsi
+++ b/arch/arm/boot/dts/r8a7778.dtsi
@@ -498,14 +498,17 @@
                audio_clk_a: audio_clk_a {
                        compatible = "fixed-clock";
                        #clock-cells = <0>;
+                       clock-frequency = <0>;
                };
                audio_clk_b: audio_clk_b {
                        compatible = "fixed-clock";
                        #clock-cells = <0>;
+                       clock-frequency = <0>;
                };
                audio_clk_c: audio_clk_c {
                        compatible = "fixed-clock";
                        #clock-cells = <0>;
+                       clock-frequency = <0>;
                };
 
                /* Fixed ratio clocks */