dt-bindings: clocks: add binding for gated-fixed-clocks

2024-10-15T23:04:19Z

In contrast to fixed clocks that are described as ungateable, boards sometimes use additional oscillators for things like PCIe reference clocks, that need actual supplies to get enabled and enable-gpios to be toggled for them to work. This adds a binding for such oscillators that are not configurable themself, but need to handle supplies for them to work. In schematics they often can be seen as ---------------- Enable - | 100MHz,3.3V, | - VDD | 3225 | GND - | | - OUT ---------------- or similar. The enable pin might be separate but can also just be tied to the vdd supply, hence it is optional in the binding. Signed-off-by: Heiko Stuebner Reviewed-by: Rob Herring (Arm) Reviewed-by: Conor Dooley Link: https://lore.kernel.org/r/20240906082511.2963890-2-heiko@sntech.de Signed-off-by: Stephen Boyd

kernel/Documentation/devicetree/bindings/clock/gated-fixed-clock.yaml, branch linux-rolling-stable

dt-bindings: clocks: add binding for gated-fixed-clocks