Board uses 4-wire synchronous mode for audio,
so add SYN bit for PTCR AUDMUX registers.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
        ssi2 {
                fsl,audmux-port = <1>;
                fsl,port-config = <
-                       (IMX_AUDMUX_V2_PTCR_TFSDIR |
+                       (IMX_AUDMUX_V2_PTCR_SYN |
+                       IMX_AUDMUX_V2_PTCR_TFSDIR |
                        IMX_AUDMUX_V2_PTCR_TFSEL(4) |
                        IMX_AUDMUX_V2_PTCR_TCLKDIR |
                        IMX_AUDMUX_V2_PTCR_TCSEL(4))
        pins5 {
                fsl,audmux-port = <4>;
                fsl,port-config = <
-                       0x00000000
+                       IMX_AUDMUX_V2_PTCR_SYN
                        IMX_AUDMUX_V2_PDCR_RXDSEL(1)
                >;
        };