linux-kernel - [v2, 0/7] Support programmable pins for Ocelot PTP driver

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Date:   Tue, 31 Mar 2020 12:11:06 +0800
From:   Yangbo Lu <yangbo.lu@....com>
To:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Cc:     Yangbo Lu <yangbo.lu@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Richard Cochran <richardcochran@...il.com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>
Subject: [v2, 0/7] Support programmable pins for Ocelot PTP driver

The Ocelot PTP clock driver had been embedded into ocelot.c driver.
It had supported basic gettime64/settime64/adjtime/adjfine functions
by now which were used by both Ocelot switch and Felix switch.

This patch-set is to move current ptp clock code out of ocelot.c driver
maintaining as a single ocelot_ptp.c driver, and to implement 4
programmable pins with only PTP_PF_PEROUT function for now.
The PTP_PF_EXTTS function will be supported in the future, and it should
be implemented separately for Felix and Ocelot, because of different
hardware interrupt implementation in them.
---
Changes for v2:
	- Put PTP driver under drivers/net/ethernet/mscc/.
	- Dropped MAINTAINERS patch. Kept original maintaining.
	- Initialized PTP separately in ocelot/felix platforms.
	- Supported PPS case in programmable pin.
	- Supported disabling pin function since deadlock is fixed by Richard.
	- Returned -EBUSY if not finding pin available.

Yangbo Lu (7):
  net: mscc: ocelot: move ocelot ptp clock code out of ocelot.c
  net: mscc: ocelot: fix timestamp info if ptp clock does not work
  net: mscc: ocelot: redefine PTP pins
  net: mscc: ocelot: add wave programming registers definitions
  net: mscc: ocelot: support 4 PTP programmable pins
  net: mscc: ocelot: enable PTP programmable pin
  net: dsa: felix: enable PTP programmable pin

 drivers/net/dsa/ocelot/felix.c                     |  27 ++
 drivers/net/dsa/ocelot/felix_vsc9959.c             |   2 +
 drivers/net/ethernet/mscc/Makefile                 |   2 +-
 drivers/net/ethernet/mscc/ocelot.c                 | 212 +-------------
 drivers/net/ethernet/mscc/ocelot.h                 |   3 +-
 drivers/net/ethernet/mscc/ocelot_board.c           |  27 ++
 drivers/net/ethernet/mscc/ocelot_ptp.c             | 324 +++++++++++++++++++++
 drivers/net/ethernet/mscc/ocelot_regs.c            |   2 +
 include/soc/mscc/ocelot.h                          |  15 +-
 .../net/ethernet => include/soc}/mscc/ocelot_ptp.h |  17 ++
 10 files changed, 417 insertions(+), 214 deletions(-)
 create mode 100644 drivers/net/ethernet/mscc/ocelot_ptp.c
 rename {drivers/net/ethernet => include/soc}/mscc/ocelot_ptp.h (52%)

-- 
2.7.4