[{"id":3673088,"web_url":"http://patchwork.ozlabs.org/comment/3673088/","msgid":"<5wacj2o5m7knwtc7vxws4xct4ogpitrwnmrtvtsdn73blddsql@natpxrbsaske>","list_archive_url":null,"date":"2026-04-03T11:53:53","subject":"Re: [Intel-wired-lan] [PATCH v5 net-next 3/8] dpll: extend pin\n notifier and netlink events with notification source ID","submitter":{"id":15321,"url":"http://patchwork.ozlabs.org/api/people/15321/","name":"Jiri Pirko","email":"jiri@resnulli.us"},"content":"Fri, Apr 03, 2026 at 01:06:21AM +0200, grzegorz.nitka@intel.com wrote:\n>Extend the DPLL pin notification API to include a source identifier\n>indicating where the notification originates. This allows notifier\n>consumers and netlink listeners to distinguish between notifications\n>coming from an associated DPLL instance, a parent pin, or the pin\n>itself.\n>\n>A new field, src_id, is added to struct dpll_pin_notifier_info and is\n>passed through all pin-related notification paths. Callers of\n>dpll_pin_notify() are updated to provide a meaningful source identifier\n>based on their context:\n> - pin registration/unregistration uses the DPLL's clock_id,\n> - pin-on-pin operations use the parent pin's clock_id,\n> - pin changes use the pin's own clock_id.\n>\n>As introduced in the commit (\"dpll: allow registering FW-identified pin\n>with a different DPLL\"), it is possible to share the same physical pin\n>via firmware description (fwnode) with DPLL objects from different\n>kernel modules. This means that a given pin can be registered multiple\n>times.\n>\n>Driver such as ICE (E825 devices) rely on this mechanism when listening\n>for the event where a shared-fwnode pin appears, while avoiding reacting\n>to events triggered by their own registration logic.\n>\n>This change only extends the notification metadata and does not alter\n>existing semantics for drivers that do not use the new field.\n>\n>Reviewed-by: Arkadiusz Kubalewski \n>Reviewed-by: Aleksandr Loktionov \n>Signed-off-by: Grzegorz Nitka \n\nReviewed-by: Jiri Pirko ","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=vC2cukJf;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::137; 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