From: Ali Rouhi <arouhi@sitime.com>
To: "jiri@resnulli.us" <jiri@resnulli.us>
Cc: "vadim.fedorenko@linux.dev" <vadim.fedorenko@linux.dev>,
"arkadiusz.kubalewski@intel.com" <arkadiusz.kubalewski@intel.com>,
"robh@kernel.org" <robh@kernel.org>,
"krzk+dt@kernel.org" <krzk+dt@kernel.org>,
"conor+dt@kernel.org" <conor+dt@kernel.org>,
"cjubran@nvidia.com" <cjubran@nvidia.com>,
"Oleg.Zadorozhnyi@devoxsoftware.com"
<Oleg.Zadorozhnyi@devoxsoftware.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Ali Rouhi <arouhi@sitime.com>
Subject: [PATCH net-next v6 0/3] dpll: add SiTime SiT9531x DPLL clock driver
Date: Wed, 12 Aug 2026 17:55:24 +0000 [thread overview]
Message-ID: <20260812175337.18155-1-arouhi@sitime.com> (raw)
This series adds a DPLL subsystem driver for the SiTime SiT95316 and
SiT95317 I2C clock generators. Each device integrates four PLLs with
automatic/manual reference selection and on-chip TDC phase-offset
measurement, and is used for synchronization in telecom, networking,
and data-center timing.
The series contains the device-tree binding, the driver under
drivers/dpll/sit9531x/, and the MAINTAINERS entry.
v1: https://lore.kernel.org/netdev/20260511211143.19792-1-arouhi@sitime.com/
v2: https://lore.kernel.org/netdev/20260520191943.73938-1-arouhi@sitime.com/
v3: https://lore.kernel.org/netdev/20260731180951.65725-1-arouhi@sitime.com/
v4: https://lore.kernel.org/netdev/20260806232439.27551-1-arouhi@sitime.com/
v5: https://lore.kernel.org/netdev/20260810230439.22866-1-arouhi@sitime.com/
Changes since v5 (driver only; the bindings are unchanged):
- Read the input receiver-enabled state back from the device, so inputs
are no longer all reported as disconnected after probe.
- Fix the input priority table handling: it has 11 slots, not 12;
correct the priority-slot to register-nibble mapping; and latch the
table with a small update after a write.
- Do not report an unused PLL as locked.
- Report the reference fractional frequency offset through the .ffo_get
callback (DPLL_FFO_PIN_DEVICE).
- Read the DIVN the loop is actually running, and treat the DIVN
numerator as a signed value.
- Name the debug readback window for what it holds.
Ali Rouhi (3):
dt-bindings: vendor-prefixes: add SiTime Corporation
dt-bindings: dpll: add SiTime SiT95316 clock generator
dpll: add SiTime SiT9531x DPLL clock driver
.../bindings/dpll/sitime,sit95316.yaml | 171 +
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
MAINTAINERS | 7 +
drivers/dpll/Kconfig | 1 +
drivers/dpll/Makefile | 1 +
drivers/dpll/sit9531x/Kconfig | 17 +
drivers/dpll/sit9531x/Makefile | 4 +
drivers/dpll/sit9531x/core.c | 3120 +++++++++++++++++
drivers/dpll/sit9531x/core.h | 372 ++
drivers/dpll/sit9531x/dpll.c | 1202 +++++++
drivers/dpll/sit9531x/dpll.h | 69 +
drivers/dpll/sit9531x/prop.c | 397 +++
drivers/dpll/sit9531x/prop.h | 39 +
drivers/dpll/sit9531x/regs.h | 371 ++
14 files changed, 5773 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dpll/sitime,sit95316.yaml
create mode 100644 drivers/dpll/sit9531x/Kconfig
create mode 100644 drivers/dpll/sit9531x/Makefile
create mode 100644 drivers/dpll/sit9531x/core.c
create mode 100644 drivers/dpll/sit9531x/core.h
create mode 100644 drivers/dpll/sit9531x/dpll.c
create mode 100644 drivers/dpll/sit9531x/dpll.h
create mode 100644 drivers/dpll/sit9531x/prop.c
create mode 100644 drivers/dpll/sit9531x/prop.h
create mode 100644 drivers/dpll/sit9531x/regs.h
base-commit: 001b5d347d8ba39b2dccaefcc57967b18caec8fe
--
2.39.2 (Apple Git-143)
next reply other threads:[~2026-08-12 17:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-12 17:55 Ali Rouhi [this message]
2026-08-12 17:55 ` [PATCH net-next v6 2/3] dt-bindings: dpll: add SiTime SiT95316 clock generator Ali Rouhi
2026-08-12 17:55 ` [PATCH net-next v6 1/3] dt-bindings: vendor-prefixes: add SiTime Corporation Ali Rouhi
2026-08-12 17:55 ` [PATCH net-next v6 3/3] dpll: add SiTime SiT9531x DPLL clock driver Ali Rouhi
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