[alsa-devel] [PATCH] ASoC: imx-audmux: add RXFS/RXCLK defines for 6-wire connections

[Nicolin Chen]

On Thu, May 17, 2018 at 04:26:01PM +0200, Marco Felsch wrote:
> From: Philipp Zabel <p.zabel at pengutronix.de>
> 
> In asynchronous mode, a RxFS and RxClk connection needs to be made between
> two ports. Add a define for the bit to be set in the *SEL fields.
> 
> Signed-off-by: Philipp Zabel <p.zabel at pengutronix.de>
> Signed-off-by: Marco Felsch <m.felsch at pengutronix.de>
> ---
>  include/dt-bindings/sound/fsl-imx-audmux.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/include/dt-bindings/sound/fsl-imx-audmux.h b/include/dt-bindings/sound/fsl-imx-audmux.h
> index 751fe1416f95..6120696abe63 100644
> --- a/include/dt-bindings/sound/fsl-imx-audmux.h
> +++ b/include/dt-bindings/sound/fsl-imx-audmux.h
> @@ -25,6 +25,10 @@
>  #define MX51_AUDMUX_PORT6		5
>  #define MX51_AUDMUX_PORT7		6
>  
> +/* TFSEL/TCSEL/RFSEL/RCSEL can be sourced from Rx/Tx clocks on i.MX51/53/6Q */

It's actually not confined to 51/53/6Q -- 21 and 35 should
also have it according to their Reference Manuals.

> +#define IMX_AUDMUX_RXFS			0x8
> +#define IMX_AUDMUX_RXCLK		0x8
> +
>  /* Register definitions for the i.MX21/27 Digital Audio Multiplexer */
>  #define IMX_AUDMUX_V1_PCR_INMMASK(x)	((x) & 0xff)
>  #define IMX_AUDMUX_V1_PCR_INMEN		(1 << 8)
> -- 
> 2.17.0
>