kernel/Documentation/devicetree/bindings/net/ethernet-phy.yaml, branch linux-rolling-stable

dt-bindings: net: ethernet-phy: clarify when compatible must specify PHY ID

2025-11-05T01:30:46Z

Change PHY ID description in ethernet-phy.yaml to clarify that a PHY ID is required (may -> must) when the PHY requires special initialization sequence. Link: https://lore.kernel.org/netdev/20251026212026.GA2959311-robh@kernel.org/ Link: https://lore.kernel.org/netdev/aQIZvDt5gooZSTcp@debianbuilder/ Signed-off-by: Buday Csaba Acked-by: Conor Dooley Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Link: https://patch.msgid.link/64c52d1a726944a68a308355433e8ef0f82c4240.1762157515.git.buday.csaba@prolan.hu Signed-off-by: Jakub Kicinski

dt-bindings: fix spelling, typos, grammar, duplicated words

2025-09-26T20:53:29Z

Signed-off-by: Markus Heidelberg Signed-off-by: Rob Herring (Arm)

dt-bindings: net: ethernet-phy: add property mac-termination-ohms

2025-04-23T00:49:47Z

Add property mac-termination-ohms in the device tree bindings for selecting the resistance value of the builtin series termination resistors of the PHY. Changing the resistance to an appropriate value can reduce signal reflections and therefore improve signal quality. Signed-off-by: Dimitri Fedrau Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/20250416-dp83822-mac-impedance-v3-1-028ac426cddb@liebherr.com Signed-off-by: Jakub Kicinski

dt-bindings: net: ethernet-phy: add property tx-amplitude-100base-tx-percent

2025-02-18T00:40:42Z

Add property tx-amplitude-100base-tx-percent in the device tree bindings for configuring the tx amplitude of 100BASE-TX PHYs. Modifying it can be necessary to compensate losses on the PCB and connector, so the voltages measured on the RJ45 pins are conforming. Acked-by: Conor Dooley Signed-off-by: Dimitri Fedrau Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20250214-dp83822-tx-swing-v5-1-02ca72620599@liebherr.com Signed-off-by: Jakub Kicinski

dt-bindings: net: ethernet-phy: Add timing-role role property for ethernet PHYs

2024-10-08T08:50:14Z

This patch introduces a new `timing-role` property in the device tree bindings for configuring the master/slave role of PHYs. This is essential for scenarios where hardware strap pins are unavailable or incorrectly configured. The `timing-role` property supports the following values: - `forced-master`: Forces the PHY to operate as a master (clock source). - `forced-slave`: Forces the PHY to operate as a slave (clock receiver). - `preferred-master`: Prefers the PHY to be master but allows negotiation. - `preferred-slave`: Prefers the PHY to be slave but allows negotiation. The terms "master" and "slave" are retained in this context to align with the IEEE 802.3 standards, where they are used to describe the roles of PHY devices in managing clock signals for data transmission. In particular, the terms are used in specifications for 1000Base-T and MultiGBASE-T PHYs, among others. Although there is an effort to adopt more inclusive terminology, replacing these terms could create discrepancies between the Linux kernel and the established standards, documentation, and existing hardware interfaces. Signed-off-by: Oleksij Rempel Reviewed-by: Rob Herring (Arm) Reviewed-by: Florian Fainelli Reviewed-by: Divya Koppera Signed-off-by: Paolo Abeni

dt-bindings: ethernet-phy: add optional brr-mode flag

2024-07-15T03:38:34Z

There is a group of PHY chips supporting BroadR-Reach link modes in a manner allowing for more or less identical register usage as standard Clause 22 PHY. These chips support standard Ethernet link modes as well, however, the circuitry is mutually exclusive and cannot be auto-detected. The link modes in question are 100Base-T1 as defined in IEEE802.3bw, based on Broadcom's 1BR-100 link mode, and newly defined 10Base-T1BRR (1BR-10 in Broadcom documents). Add optional brr-mode flag to switch the PHY to BroadR-Reach mode. Signed-off-by: Kamil Horák (2N) Reviewed-by: Rob Herring (Arm) Reviewed-by: Florian Fainelli Link: https://patch.msgid.link/20240712150709.3134474-4-kamilh@axis.com Signed-off-by: Jakub Kicinski

dt-bindings: Fix typos

2023-08-18T16:32:25Z

Fix typos in Documentation/devicetree/bindings. The changes are in descriptions or comments where they shouldn't affect functionality. Signed-off-by: Bjorn Helgaas Link: https://lore.kernel.org/r/20230814212822.193684-3-helgaas@kernel.org Signed-off-by: Rob Herring

dt-bindings: net: phy: Document support for external PHY clk

2023-06-07T08:52:24Z

Ethern PHYs can have external an clock that needs to be activated before communicating with the PHY. Acked-by: Krzysztof Kozlowski Signed-off-by: Detlev Casanova Signed-off-by: David S. Miller

dt-bindings: net: phy: Document support for LEDs node

2023-04-19T11:59:16Z

Document support for LEDs node in phy and add an example for it. PHY LED will have to match led pattern and should be treated as a generic led. Signed-off-by: Christian Marangi Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

dt-bindings: net: Drop unneeded quotes

2023-03-23T04:54:19Z

Cleanup bindings dropping unneeded quotes. Once all these are fixed, checking for this can be enabled in yamllint. Acked-by: Marc Kleine-Budde # for bindings/net/can Reviewed-by: Krzysztof Kozlowski Acked-by: Jernej Skrabec Acked-by: Florian Fainelli Reviewed-by: Steen Hegelund Signed-off-by: Rob Herring Acked-by: Nobuhiro Iwamatsu # for bindings/net/toshiba,visconti-dwmac.yaml Reviewed-by: Heiko Stuebner #rockchip Link: https://lore.kernel.org/r/20230320233758.2918972-1-robh@kernel.org Signed-off-by: Jakub Kicinski