linux-kernel - [PATCH v4 0/3] net: mvpp2: tai: add extts support

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Message-Id: <20230430170656.137549-1-shmuel.h@siklu.com>
Date:   Sun, 30 Apr 2023 20:06:53 +0300
From:   Shmuel Hazan <shmuel.h@...lu.com>
To:     Russell King <linux@...linux.org.uk>
Cc:     Marcin Wojtas <mw@...ihalf.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Richard Cochran <richardcochran@...il.com>,
        horatiu.vultur@...rochip.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, Shmuel Hazan <shmuel.h@...lu.com>
Subject: [PATCH v4 0/3] net: mvpp2: tai: add extts support

This patch series adds support for PTP event capture on the Aramda
80x0/70x0. This feature is mainly used by tools linux ts2phc(3) in order
to synchronize a timestamping unit (like the mvpp2's TAI) and a system
DPLL on the same PCB. 

The patch series includes 3 patches: the second one implements the
actual extts function.

Changes in v2:
	* Fixed a deadlock in the poll worker.
	* Removed tabs from comments.

Changes in v3:
	* Added more explanation about the change in behavior in mvpp22_tai_start.
	* Explain the reason for choosing 95ms as a polling rate.

Changes in v4:
	* Add additional lock for the polling worker reference count. 

Shmuel Hazan (3):
  net: mvpp2: tai: add refcount for ptp worker
  net: mvpp2: tai: add extts support
  dt-bindings: net: marvell,pp2: add extts docs

 .../devicetree/bindings/net/marvell,pp2.yaml  |  18 +
 .../net/ethernet/marvell/mvpp2/mvpp2_tai.c    | 332 ++++++++++++++++--
 2 files changed, 316 insertions(+), 34 deletions(-)


base-commit: 3e7bb4f2461710b70887704af7f175383251088e
-- 
2.40.1