[PATCH] ARM: dts: renesas: genmai: update audio codec bindings

[Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>]

Meanwhile, bindings for the audio codec exist. Add dai-cells property
and limit max frequency accordingly:

  codec@0: '#sound-dai-cells' is a required property
  codec@0: spi-max-frequency: 5000000 is greater than the maximum of 526000

Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
---
 arch/arm/boot/dts/renesas/r7s72100-genmai.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/renesas/r7s72100-genmai.dts b/arch/arm/boot/dts/renesas/r7s72100-genmai.dts
index 2f14522d5b50..2d72daa4fac2 100644
--- a/arch/arm/boot/dts/renesas/r7s72100-genmai.dts
+++ b/arch/arm/boot/dts/renesas/r7s72100-genmai.dts
@@ -248,9 +248,10 @@ &spi4 {
 	status = "okay";
 
 	codec: codec@0 {
+		#sound-dai-cells = <0>;
 		compatible = "wlf,wm8978";
 		reg = <0>;
-		spi-max-frequency = <5000000>;
+		spi-max-frequency = <500000>;
 	};
 };
 
-- 
2.45.2