Define the upper limit otherwise the driver cannot utilize max speeds.

Signed-off-by: Simon Horman <horms+rene...@verge.net.au>
Acked-by: Wolfram Sang <wsa+rene...@sang-engineering.com>
---
 arch/arm/boot/dts/r8a7793.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7793.dtsi b/arch/arm/boot/dts/r8a7793.dtsi
index 728b5bca5bdb..13b980f27bbc 100644
--- a/arch/arm/boot/dts/r8a7793.dtsi
+++ b/arch/arm/boot/dts/r8a7793.dtsi
@@ -542,6 +542,7 @@
                dmas = <&dmac0 0xcd>, <&dmac0 0xce>,
                       <&dmac1 0xcd>, <&dmac1 0xce>;
                dma-names = "tx", "rx", "tx", "rx";
+               max-frequency = <195000000>;
                power-domains = <&sysc R8A7793_PD_ALWAYS_ON>;
                status = "disabled";
        };
@@ -554,6 +555,7 @@
                dmas = <&dmac0 0xc1>, <&dmac0 0xc2>,
                       <&dmac1 0xc1>, <&dmac1 0xc2>;
                dma-names = "tx", "rx", "tx", "rx";
+               max-frequency = <97500000>;
                power-domains = <&sysc R8A7793_PD_ALWAYS_ON>;
                status = "disabled";
        };
@@ -566,6 +568,7 @@
                dmas = <&dmac0 0xd3>, <&dmac0 0xd4>,
                       <&dmac1 0xd3>, <&dmac1 0xd4>;
                dma-names = "tx", "rx", "tx", "rx";
+               max-frequency = <97500000>;
                power-domains = <&sysc R8A7793_PD_ALWAYS_ON>;
                status = "disabled";
        };
-- 
2.1.4

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