kernel/linux.git/Documentation/devicetree/bindings/ptp, branch master

dt-bindings: ptp: Add amazon,vmclock

2026-02-03T02:06:00+00:00

The vmclock device provides a PTP clock source and precise timekeeping across live migration and snapshot/restore operations. The binding has a required memory region containing the vmclock_abi structure and an optional interrupt for clock disruption notifications. The full spec is at https://uapi-group.org/specifications/specs/vmclock/ Signed-off-by: David Woodhouse Signed-off-by: Babis Chalios Reviewed-by: Krzysztof Kozlowski Tested-by: Takahiro Itazuri Link: https://patch.msgid.link/20260130173704.12575-4-itazur@amazon.com Signed-off-by: Jakub Kicinski

dt-bindings: ptp: add NETC Timer PTP clock

2025-09-02T11:13:33+00:00

NXP NETC (Ethernet Controller) is a multi-function PCIe Root Complex Integrated Endpoint (RCiEP), the Timer is one of its functions which provides current time with nanosecond resolution, precise periodic pulse, pulse on timeout (alarm), and time capture on external pulse support. And also supports time synchronization as required for IEEE 1588 and IEEE 802.1AS-2020. So add device tree binding doc for the PTP clock based on NETC Timer. NETC Timer has three reference clock sources, but the clock mux is inside the IP. Therefore, the driver will parse the clock name to select the desired clock source. If the clocks property is not present, NETC Timer will use the system clock of NETC IP as its reference clock. Because the Timer is a PCIe function of NETC IP, the system clock of NETC is always available to the Timer. Signed-off-by: Wei Fang Reviewed-by: Frank Li Reviewed-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20250829050615.1247468-2-wei.fang@nxp.com Signed-off-by: Paolo Abeni

dt-binding: ptp: fsl,ptp: add pci1957,ee02 compatible string for fsl,enetc-ptp

2024-08-19T08:48:53+00:00

fsl,enetc-ptp is embedded pcie device. Add compatible string pci1957,ee02. Fix warning: arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-kbox-a-230-ls.dtb: ethernet@0,4: compatible:0: 'pci1957,ee02' is not one of ['fsl,etsec-ptp', 'fsl,fman-ptp-timer', 'fsl,dpaa2-ptp', 'fsl,enetc-ptp'] Signed-off-by: Frank Li Acked-by: Rob Herring (Arm) Signed-off-by: David S. Miller

dt-bindings: ptp: Convert ptp-qoirq to yaml format

2024-06-21T02:32:22+00:00

Convert ptp-qoirq from txt to yaml format. Additional change: - Fixed example interrupts proptery. Need only 1 irq by check MPC8313 spec. - Move Reference clock context under clk,sel. - Interrupts is not required property. - Use low case for hex value. - Check reference manual of MPC8313, p1010 and so on, which dts use more than 1 irqs. Only 1 irq for each ptp device. Check driver code (drivers/ptp/ptp_qoriq.c) and only 1 irq used. So original description is wrong. - Remove comments for compatible string. Signed-off-by: Frank Li Reviewed-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20240618-ls_fman-v2-1-f00a82623d8e@nxp.com Signed-off-by: Jakub Kicinski

dt-bindings: Remove 'Device Tree Bindings' from end of title:

2022-08-25T19:06:57+00:00

As indicated in link: https://lore.kernel.org/all/20220822204945.GA808626-robh@kernel.org/ DT schema files should not have 'Device Tree Binding' as part of there title: line. Remove this in most .yaml files, so hopefully preventing developers copying it into new .yaml files, and being asked to remove it. Signed-off-by: Andrew Lunn Link: https://lore.kernel.org/r/20220825020427.3460650-1-andrew@lunn.ch Signed-off-by: Rob Herring

dt-bindings: Fix undocumented compatible strings in examples

2021-02-04T15:07:43+00:00

Running 'dt-validate -m' will flag any compatible strings missing a schema. Fix all the errors found in DT binding examples. Most of these are just typos. Cc: Stephen Boyd Cc: Chen-Yu Tsai Cc: Herbert Xu Cc: "David S. Miller" Cc: Bartosz Golaszewski Cc: Avi Fishman Cc: Tomer Maimon Cc: Tali Perry Cc: Joerg Roedel Cc: Will Deacon Cc: Joel Stanley Cc: Wim Van Sebroeck Cc: Yoshihiro Shimoda Cc: Vincent Cheng Cc: linux-clk@vger.kernel.org Cc: linux-crypto@vger.kernel.org Cc: linux-gpio@vger.kernel.org Cc: linux-i2c@vger.kernel.org Cc: iommu@lists.linux-foundation.org Cc: linux-watchdog@vger.kernel.org Reviewed-by: Guenter Roeck Reviewed-by: Andrew Jeffery Acked-by: Maxime Ripard Reviewed-by: Linus Walleij Reviewed-by: Daniel Palmer Reviewed-by: Yoshihiro Shimoda Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20210202205544.24812-1-robh@kernel.org

dt-binding: ptp_qoriq: support fsl,tmr-fiper3 property

2020-09-19T00:49:20+00:00

Add fsl,tmr-fiper3 property definition which is supported only on DPAA2 and ENETC network controller hardware. Signed-off-by: Yangbo Lu Signed-off-by: David S. Miller

Merge tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2020-04-03T00:32:52+00:00

Pull devicetree updates from Rob Herring: - Unit test for overlays with GPIO hogs - Improve dma-ranges parsing to handle dma-ranges with multiple entries - Update dtc to upstream version v1.6.0-2-g87a656ae5ff9 - Improve overlay error reporting - Device link support for power-domains and hwlocks bindings - Add vendor prefixes for Beacon, Topwise, ENE, Dell, SG Micro, Elida, PocketBook, Xiaomi, Linutronix, OzzMaker, Waveshare Electronics, and ITE Tech - Add deprecated Marvell vendor prefix 'mrvl' - A bunch of binding conversions to DT schema continues. Of note, the common serial and USB connector bindings are converted. - Add more Arm CPU compatibles - Drop Mark Rutland as DT maintainer :( * tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (106 commits) MAINTAINERS: drop an old reference to stm32 pwm timers doc MAINTAINERS: dt: update etnaviv file reference dt-bindings: usb: dwc2: fix bindings for amlogic, meson-gxbb-usb dt-bindings: uniphier-system-bus: fix warning in the example dt-bindings: display: meson-vpu: fix indentation of reg-names' "items" dt-bindings: iio: Fix adi, ltc2983 uint64-matrix schema constraints dt-bindings: power: Fix example for power-domain dt-bindings: arm: Add some constraints for PSCI nodes of: some unittest overlays not untracked of: gpio unittest kfree() wrong object dt-bindings: phy: convert phy-rockchip-inno-usb2 bindings to yaml dt-bindings: serial: sh-sci: Convert to json-schema dt-bindings: serial: Document serialN aliases dt-bindings: thermal: tsens: Set 'additionalProperties: false' dt-bindings: thermal: tsens: Fix nvmem-cell-names schema dt-bindings: vendor-prefixes: Add Beacon vendor prefix dt-bindings: vendor-prefixes: Add Topwise of: of_private.h: Replace zero-length array with flexible-array member docs: dt: fix a broken reference to input.yaml docs: dt: fix references to ap806-system-controller.txt ...

dt-bindings: Add missing 'additionalProperties: false'

2020-03-31T15:03:17+00:00

Setting 'additionalProperties: false' is frequently omitted, but is important in order to check that there aren't extra undocumented properties in a binding. Ideally, we'd just add this automatically and make this the default, but there's some cases where it doesn't work. For example, if a common schema is referenced, then properties in the common schema aren't part of what's considered for 'additionalProperties'. Also, sometimes there are bus specific properties such as 'spi-max-frequency' that go into bus child nodes, but aren't defined in the child node's schema. So let's stick with the json-schema defined default and add 'additionalProperties: false' where needed. This will be a continual review comment and game of wack-a-mole. Signed-off-by: Rob Herring Reviewed-by: Neil Armstrong Acked-by: Mark Brown Acked-by: Jonathan Cameron Acked-by: Alexandru Ardelean Reviewed-by: Benjamin Gaignard Acked-by: Stephen Boyd # clock Acked-by: Lee Jones

dt-bindings: ptp: Add device tree binding for IDT 82P33 based PTP clock

2020-02-24T21:08:12+00:00

Add device tree binding doc for the PTP clock based on IDT 82P33 Synchronization Management Unit (SMU). Changes since v1: - As suggested by Rob Herring: 1. Drop reg description for i2c 2. Replace i2c@1 with i2c 3. Add addtionalProperties: false Signed-off-by: Min Li Reviewed-by: Rob Herring Signed-off-by: David S. Miller