| From: |
| Ivan Vecera <ivecera-AT-redhat.com> |
| To: |
| netdev-AT-vger.kernel.org |
| Subject: |
| [PATCH net-next v4 0/4] dpll: add NCO pin type and zl3073x support |
| Date: |
| Wed, 27 May 2026 18:12:37 +0200 |
| Message-ID: |
| <20260527161241.86655-1-ivecera@redhat.com> |
| Cc: |
| Arkadiusz Kubalewski <arkadiusz.kubalewski-AT-intel.com>, "David S. Miller" <davem-AT-davemloft.net>, Donald Hunter <donald.hunter-AT-gmail.com>, Eric Dumazet <edumazet-AT-google.com>, Jakub Kicinski <kuba-AT-kernel.org>, Jiri Pirko <jiri-AT-resnulli.us>, Michal Schmidt <mschmidt-AT-redhat.com>, Paolo Abeni <pabeni-AT-redhat.com>, Pasi Vaananen <pvaanane-AT-redhat.com>, Petr Oros <poros-AT-redhat.com>, Prathosh Satish <Prathosh.Satish-AT-microchip.com>, Simon Horman <horms-AT-kernel.org>, Vadim Fedorenko <vadim.fedorenko-AT-linux.dev>, linux-kernel-AT-vger.kernel.org |
| Archive-link: |
| Article |
Add a new DPLL_PIN_TYPE_INT_NCO pin type for virtual pins representing
the NCO mode of a DPLL and implement support for it in the zl3073x driver.
Patch 1 adds the new pin type to the DPLL netlink spec and UAPI header.
Patch 2 replaces the single 2s poll timeout with per-operation timeouts
based on Microchip proprietary source code and own measurement.
Patch 3 adds a per-DPLL serialization mutex taken by all DPLL callbacks
and the periodic worker, establishing a single lock that protects all
per-channel state. The chan_state_update() call is moved under this lock.
Patch 4 adds a virtual NCO input pin to the zl3073x driver that allows
userspace to switch a DPLL channel into NCO mode. The pin reports
connected/active state when the channel is in NCO mode and handles
the hardware-specific details of mode transitions including automatic
df_offset capture and 1PPS phase preservation.
Changes:
v4:
- New patch 2: per-operation poll timeouts
- New patch 3: per-DPLL serialization lock
- See individual patches for detailed changelogs.
v3:
- fixed SoB position
v2:
- See individual patches for detailed changelogs.
Ivan Vecera (4):
dpll: add DPLL_PIN_TYPE_INT_NCO pin type
dpll: zl3073x: use per-operation poll timeouts
dpll: zl3073x: add per-DPLL serialization lock
dpll: zl3073x: add NCO virtual input pin
Documentation/netlink/specs/dpll.yaml | 13 +
drivers/dpll/dpll_nl.c | 2 +-
drivers/dpll/zl3073x/chan.c | 102 +++++-
drivers/dpll/zl3073x/chan.h | 48 +++
drivers/dpll/zl3073x/core.c | 47 ++-
drivers/dpll/zl3073x/core.h | 10 +-
drivers/dpll/zl3073x/dpll.c | 495 ++++++++++++++++++++++----
drivers/dpll/zl3073x/dpll.h | 4 +
drivers/dpll/zl3073x/regs.h | 9 +
include/uapi/linux/dpll.h | 4 +
10 files changed, 628 insertions(+), 106 deletions(-)
base-commit: aa064a614efcfa4c300609d1f01134e99a12ad10
--
2.53.0
