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Miller" , Donald Hunter , Eric Dumazet , Jakub Kicinski , Jonathan Corbet , Leon Romanovsky , Mark Bloch , Michal Schmidt , Paolo Abeni , Pasi Vaananen , Petr Oros , Prathosh Satish , Saeed Mahameed , Shuah Khan , Simon Horman , Tariq Toukan , Vadim Fedorenko , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Subject: Re: [PATCH net-next v3 1/2] dpll: add fractional frequency offset to pin-parent-device Message-ID: References: <20260504155340.411063-1-ivecera@redhat.com> <20260504155340.411063-2-ivecera@redhat.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260504155340.411063-2-ivecera@redhat.com> Mon, May 04, 2026 at 05:53:39PM +0200, ivecera@redhat.com 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 Reviewed-by: Jiri Pirko