[PATCH v4 2/4] dt-bindings: sound: add rockchip i2s-tdm binding

[Mark Brown]

On Sat, Sep 04, 2021 at 01:15:34AM +0200, Nicolas Frattaroli wrote:

> +  rockchip,frame-width:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    default: 64
> +    minimum: 32
> +    maximum: 512
> +    description:
> +      Width of a frame, usually slot width multiplied by number of slots.
> +      Must be even.

Why is this in the binding?  This is normally configured by the machine
driver setting the TDM slots, not through DT.

> +  rockchip,mclk-calibrate:
> +    description:
> +      Switch between two root clocks depending on the audio sample rate.
> +      For integer multiples of 8000 (e.g. 48000 Hz), mclk_root0 is used.
> +      For integer multiples of 11025 (e.g. 44100 Hz), mclk_root1 is used.
> +    type: boolean

Why would we not want to do this, and assuming it's to do with
availability can't we detect it simply through seeing if both MCLKs are
available?

> +  rockchip,tdm-fsync-half-frame:
> +    description: Whether to use half frame fsync.
> +    type: boolean
> +

Why is this not part of the normal bus format configuration?  I don't
know what this is but it sounds a lot like I2S mode...
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-rockchip/attachments/20210915/5e737a48/attachment.sig>