netdev - [PATCH v3 0/2] PtP driver for s390 clocks

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Message-ID: <20241017060749.3893793-1-svens@linux.ibm.com>
Date: Thu, 17 Oct 2024 08:07:47 +0200
From: Sven Schnelle <svens@...ux.ibm.com>
To: Heiko Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Richard Cochran <richardcochran@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Ricardo B. Marliere" <ricardo@...liere.net>
Cc: linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
        netdev@...r.kernel.org
Subject: [PATCH v3 0/2] PtP driver for s390 clocks

Hi,

these patches add support for using the s390 physical and TOD clock as ptp
clock. To do so, the first patch adds a clock id to the s390 TOD clock,
while the second patch adds the PtP driver itself.

Changes in v3:
- drop 'IBM' from clock names
- use u128 as return type of eitod_to_ns()
- fix calculation in eitod_to_timespec64()

Changes in v2:
- add missing MODULE_DESCRIPTION()
- drop udev event patch
- simplify eitod_to_ns()
- use store_tod_clock_ext() instead of store_tod_clock_ext_cc()
- move stp_enabled() declaration to stp.h
- use s390 instead of 'Z' in clock names
- defconfig symbol should be default-n

Sven Schnelle (2):
  s390/time: Add clocksource id to TOD clock
  s390/time: Add PtP driver

 MAINTAINERS                     |   6 ++
 arch/s390/include/asm/stp.h     |   1 +
 arch/s390/include/asm/timex.h   |   6 ++
 arch/s390/kernel/time.c         |   7 ++
 drivers/ptp/Kconfig             |  11 +++
 drivers/ptp/Makefile            |   1 +
 drivers/ptp/ptp_s390.c          | 129 ++++++++++++++++++++++++++++++++
 include/linux/clocksource_ids.h |   1 +
 8 files changed, 162 insertions(+)
 create mode 100644 drivers/ptp/ptp_s390.c

-- 
2.43.0