On Sat, Jul 20, 2019 at 08:41:21AM +0200, Maxime Ripard wrote: > The DMA controllers and consumers have a bunch of generic properties that > are needed in a device tree. Add a YAML schemas for those. > > Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxx> > > --- > > Changes from v1: > - Dropped the dma consumer schemas > - Fixed the node name of the examples > - Enhanced a bit the description for dma-requests in case of a router > - Split the bindings in two to handle the router and controller case > separately > - Made #dma-cells required > --- > .../devicetree/bindings/dma/dma-common.yaml | 43 +++++++ > .../bindings/dma/dma-controller.yaml | 35 ++++++ > .../devicetree/bindings/dma/dma-router.yaml | 50 ++++++++ > Documentation/devicetree/bindings/dma/dma.txt | 114 +----------------- > 4 files changed, 129 insertions(+), 113 deletions(-) > create mode 100644 Documentation/devicetree/bindings/dma/dma-common.yaml > create mode 100644 Documentation/devicetree/bindings/dma/dma-controller.yaml > create mode 100644 Documentation/devicetree/bindings/dma/dma-router.yaml > > diff --git a/Documentation/devicetree/bindings/dma/dma-common.yaml b/Documentation/devicetree/bindings/dma/dma-common.yaml > new file mode 100644 > index 000000000000..422fd6c8b0ce > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/dma-common.yaml > @@ -0,0 +1,43 @@ > +# SPDX-License-Identifier: GPL-2.0 > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/dma/dma-common.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: DMA Engine Generic Binding > + > +maintainers: > + - Vinod Koul <vkoul@xxxxxxxxxx> > + > +description: > + Generic binding to provide a way for a driver using DMA Engine to > + retrieve the DMA request or channel information that goes from a > + hardware device to a DMA controller. > + > +properties: > + "#dma-cells": > + minimum: 1 > + # Should be enough > + maximum: 255 > + description: > + Used to provide DMA controller specific information. We need a select statement here, otherwise it will try to validate every node and report dma-cells as missing. I'll send a v3. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
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