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Miller" , Jakub Kicinski , Jiri Pirko , Michal Schmidt , Paolo Abeni , Pasi Vaananen , Petr Oros , Prathosh Satish , Richard Cochran , Simon Horman , Vadim Fedorenko , linux-kernel@vger.kernel.org Subject: [PATCH net-next v2 0/2] dpll: zl3073x: add PTP clock support Date: Mon, 13 Jul 2026 12:37:37 +0200 Message-ID: <20260713103739.1553284-1-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 3.0 on 10.30.177.17 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, getmaxphase and perout 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. Link: https://lore.kernel.org/netdev/20260708170527.916035-1-ivecera@redhat.com/ Changes: 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 | 307 +++++++++++++++++++ drivers/dpll/zl3073x/chan.h | 48 +++ drivers/dpll/zl3073x/core.c | 8 + drivers/dpll/zl3073x/core.h | 8 + drivers/dpll/zl3073x/dpll.c | 575 +++++++++++++++++++++++++++++++++-- drivers/dpll/zl3073x/dpll.h | 6 + drivers/dpll/zl3073x/regs.h | 56 ++++ 8 files changed, 978 insertions(+), 36 deletions(-) base-commit: 4a13f31a92f35161b499bf29638336885259da78 -- 2.53.0