Re: [PATCH net-next v3 1/2] dpll: add fractional frequency offset to pin-parent-device

[Jiri Pirko]

Mon, May 04, 2026 at 05:53:39PM +0200, ivecera@xxxxxxxxxx wrote:
>Add both fractional-frequency-offset (PPM) and
>fractional-frequency-offset-ppt (PPT) attributes to the
>pin-parent-device nested attribute set, alongside the existing
>top-level pin attributes. Both carry the same measurement at
>different precisions.
>
>Distinguish the two contexts in the ffo_get callback by passing
>dpll=NULL for the top-level call and a valid dpll pointer for the
>nested per-parent call. This allows drivers to report a different
>value per parent DPLL if needed. Update mlx5 and zl3073x drivers
>to return -ENODATA for the context they do not yet support.
>
>Add documentation for both FFO attributes to dpll.rst.
>
>Signed-off-by: Ivan Vecera <ivecera@xxxxxxxxxx>

Reviewed-by: Jiri Pirko <jiri@xxxxxxxxxx>