Allwinner Display Engine 3.3 contains planes, which are shared resources between all mixers present in SoC. They can be assigned to specific mixer by using registers which reside in display clocks MMIO.
Add a binding for them. Signed-off-by: Jernej Skrabec <[email protected]> --- .../allwinner,sun50i-h616-de33-planes.yaml | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/allwinner,sun50i-h616-de33-planes.yaml diff --git a/Documentation/devicetree/bindings/display/allwinner,sun50i-h616-de33-planes.yaml b/Documentation/devicetree/bindings/display/allwinner,sun50i-h616-de33-planes.yaml new file mode 100644 index 000000000000..801e5068a6b5 --- /dev/null +++ b/Documentation/devicetree/bindings/display/allwinner,sun50i-h616-de33-planes.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/allwinner,sun50i-h616-de33-planes.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner H616 Display Engine 3.3 planes + +maintainers: + - Jernej Skrabec <[email protected]> + +description: | + Display Engine 3.3 planes are independent of mixers, contrary to + previous generations of Display Engine. Planes can be assigned to + mixers independently and even dynamically during runtime. + +properties: + compatible: + enum: + - allwinner,sun50i-h616-de33-planes + + reg: + maxItems: 1 + + allwinner,plane-mapping: + $ref: /schemas/types.yaml#/definitions/phandle + description: Phandle of Display Engine clock node + +required: + - compatible + - reg + - allwinner,plane-mapping + +additionalProperties: false + +examples: + - | + planes: planes@100000 { + compatible = "allwinner,sun50i-h616-de33-planes"; + reg = <0x100000 0x180000>; + allwinner,plane-mapping = <&display_clocks>; + }; + +... -- 2.51.2
