From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DEF4530566D for ; Mon, 3 Aug 2026 14:06:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785766007; cv=none; b=YVt32tZyQKUh2xnPflaG6LiQckq7YL9mY4tvHqtCmd1naAutb1Pfv78V/RF0VyFDgSmvJvIu9fubX++QbVI5A5FQcmM+rQtvuWUDfwV+QI5jjRRL9obGUVqKI6RRNL3JTTBJrYaCvgf1czN+W34OQMQVJ26f62hgh/7tSZ8RIMc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785766007; c=relaxed/simple; bh=ZbOJghhQk03x+p6oqd0K1f5jRFcvbUXgo2tvfi7aDxo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=twDG5tqGMkFpu660YMvSI1H1Nl4bO7jmO5QaC9ojrGbOQ/hlFjqXpYh/bWZ8PrRfxKGOFnn1lUi/fFmcLHyB8GWTHmpPG/OTHbRtEJznHOkBi1F2Et/7AP0OOIqzatbibWv/ACwKscLsjDPJeV3uiH/GJxt74Phve8X32JxZYGo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=ex7BVFCQ; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ex7BVFCQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1785766004; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=XcnYeSRI7yHffVct0RoEaEGJWbiBStfw/UJAe2slSXI=; b=ex7BVFCQtJNLfGvbpuZSRAkTwdj6J+rmgoZRicvBSOlreafLfxYGZEe4Q28irGPzHyAY1N 1+SimWlQkdVTUOHZYKngl+7NvpobYMeMEw3jzEBGPMSECXiRvZee+PdZrya98khA0bk2hm lsZdhrx7hPC5tAnG1prj78EjqKunIIE= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-640-BEnOuGhXN4Wc_LFI6Iqn8w-1; Mon, 03 Aug 2026 10:06:43 -0400 X-MC-Unique: BEnOuGhXN4Wc_LFI6Iqn8w-1 X-Mimecast-MFC-AGG-ID: BEnOuGhXN4Wc_LFI6Iqn8w_1785766002 Received: from mx-prod-int-10.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-10.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.95]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 941E919560AD; Mon, 3 Aug 2026 14:06:41 +0000 (UTC) Received: from p16v.redhat.com (unknown [10.44.33.235]) by mx-prod-int-10.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 84664414; Mon, 3 Aug 2026 14:06:38 +0000 (UTC) From: Ivan Vecera To: netdev@vger.kernel.org Cc: Arkadiusz Kubalewski , Jakub Kicinski , Jiri Pirko , Paolo Abeni , Petr Oros , Prathosh Satish , Richard Cochran , Vadim Fedorenko , linux-kernel@vger.kernel.org Subject: [PATCH net-next v4 0/2] dpll: zl3073x: add PTP clock support Date: Mon, 3 Aug 2026 16:06:35 +0200 Message-ID: <20260803140637.102339-1-ivecera@redhat.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.6 on 10.30.177.95 Add PTP hardware clock support to the zl3073x DPLL driver. Patch 1 adds low-level channel operations for ToD read/write/adjust, output phase step, delta frequency offset write and TIE write as building blocks for PTP callbacks. Patch 2 registers a PTP clock device for each DPLL channel with gettimex64, settime64, adjtime, adjfine, adjphase and getmaxphase callbacks. Callback availability adapts to the current channel state - adjfine requires NCO pin connected, adjphase uses TIE write when tracking a reference, and adjtime selects the appropriate mechanism automatically. Periodic output support will be added in a follow-up series. Link: https://lore.kernel.org/netdev/20260730132150.371376-1-ivecera@redhat.com/ Link: https://lore.kernel.org/netdev/20260713103739.1553284-1-ivecera@redhat.com/ Link: https://lore.kernel.org/netdev/20260708170527.916035-1-ivecera@redhat.com/ Changes: v4: - Move out_step_time_mask to struct zl3073x_dev (device-global) - Fix tod_adjust rollover guard for tick-crossing case - Drop trailing tod_ready_wait from tod_adjust - Fix TOD_CTRL register item count - Move phase step registers into existing page 9 section in regs.h - Align ToD command define values - Update kernel-doc for chan_state_fetch - Drop perout support (will rework as follow-up) - Replace abs(delta) with explicit range check to avoid S64_MIN UB - Add locking context doc to zl3073x_chan_df_offset_set - Export zl3073x_chan_tod_ready_wait and wait for ToD completion in adjtime before phase step/TIE write to prevent WR_NEXT_1HZ from overwriting the sub-second adjustment v3: - Use PTP_1588_CLOCK instead of PTP_1588_CLOCK_OPTIONAL (Jakub) - Factor out output pin frequency helper to a separate commit (Jakub) - Remove spurious #include from dpll.h (Jakub) v2: - Squash low-level ops patches (1+3) into patch 1. - Squash PTP callback patches (2+4) into patch 2, register PTP clock regardless of initial channel state. Ivan Vecera (2): dpll: zl3073x: add channel ToD, phase step and TIE operations dpll: zl3073x: add PTP clock support drivers/dpll/zl3073x/Kconfig | 6 +- drivers/dpll/zl3073x/chan.c | 310 ++++++++++++++++++++++++- drivers/dpll/zl3073x/chan.h | 32 +++ drivers/dpll/zl3073x/core.c | 13 ++ drivers/dpll/zl3073x/core.h | 23 ++ drivers/dpll/zl3073x/dpll.c | 425 ++++++++++++++++++++++++++++++++--- drivers/dpll/zl3073x/dpll.h | 5 + drivers/dpll/zl3073x/regs.h | 52 +++++ 8 files changed, 836 insertions(+), 30 deletions(-) base-commit: a5c6ae8de11ef0c3aedbe5e123354aad87d0d925 -- 2.54.0