PCM1864EVM: Trying to record over I2S on Linux.

I am using the PCM1864 as the master using J8 and J10 jumpers as specified in the manual.

I set up a generic ALSA i2s device tree using 'simple-audio-card', I can see the device using arecord -l, and all the  controls in alsamixer. But, when trying to record anything using arecord I get Invalid Argument ALSA error (when calling snd_pcm_open I guess, its very instantaneous).

Here is the device tree (on a Raspberry Pi if that makes a difference).

compatible = "brcm,bcm2835";

fragment@0 {
  target-path = "/";
  __overlay__ {
    evmclock: evmclock {
      compatible = "fixed-clock";
      #clock-cells = <0>;
      clock-frequency = <49152000>;
    };
  };
};

fragment@1 {
  target = <&i2s>;
    __overlay__ {
      #sound-dai-cells = <0>;
      status = "okay";
    };
};

fragment@2 {
  target = <&i2c1>;
  __overlay__ {
    #address-cells = <1>;
    #size-cells = <0>;
    status = "okay";
    evm: audio-codec@4a {
      #sound-dai-cells = <0>;
      compatible = "ti,pcm1864";
      //clocks = <&evmclock>;
      reg = <0x4a>; 
      status = "okay";
      avdd-supply = <&vdd_3v3_reg>;
      dvdd-supply = <&vdd_3v3_reg>;
      iovdd-supply = <&vdd_3v3_reg>; 
    };
  };
};

fragment@3 {
  target = <&sound>;
  HifiBettear: __overlay__ {
    compatible = "simple-audio-card";
    status = "okay";
    simple-audio-card,name = "Hifi";   
    capture: simple-audio-card,dai-link@0 {
      format = "i2s";
      bitclock-master = <&cpu>;
      frame-master = <&cpu>;
      cpu: cpu {
        sound-dai = <&evm>;
        clocks = <&evmclock>;
        dai-tdm-slot-num = <4>;
        dai-tdm-slot-width = <32>;
      };
      codec {
        sound-dai = <&evm>;
        dai-tdm-slot-num = <4>;
        dai-tdm-slot-width = <32>;
      };
    };
  };
};

This device tree is made from bits and pieces from this forum and some googling. If you have a similar setup or can point me in the right direction that would be very appreciated. 

Let me know if you need anything else.
Thanks, Ran.