On 16/12/2025 09:03, Xianwei Zhao via B4 Relay wrote: > From: Xianwei Zhao <[email protected]> > > Add documentation describing the Amlogic general DMA. > > Signed-off-by: Xianwei Zhao <[email protected]> > --- > .../bindings/dma/amlogic,general-dma.yaml | 70 > ++++++++++++++++++++++ > 1 file changed, 70 insertions(+) > > diff --git a/Documentation/devicetree/bindings/dma/amlogic,general-dma.yaml > b/Documentation/devicetree/bindings/dma/amlogic,general-dma.yaml > new file mode 100644 > index 000000000000..8b9cec9b8da0 > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/amlogic,general-dma.yaml > @@ -0,0 +1,70 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/dma/amlogic,general-dma.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Amlogic general DMA controller > + > +description: | > + This is a general-purpose peripheral DMA controller. It currently supports > + major peripherals including I2C, I3C, PIO, and CAN-BUS. Transmit and > receive > + for the same peripheral use two separate channels, controlled by different > + register sets. I2C and I3C transfer data in 1-byte units, while PIO and > + CAN-BUS transfer data in 4-byte units. From the controller’s perspective, > + there is no significant difference. > + > +maintainers: > + - Xianwei Zhao <[email protected]> > + > +properties: > + compatible: > + const: amlogic,general-dma
I don't know what you mean by "general" but it feels like wildcard, not SoC, so that would be a no-go. Read writing bindings or several talks about this. Best regards, Krzysztof
