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    SubjectRe: [PATCH 4/6] dt-bindings: display: armada: Add display subsystem binding
    On Sun, Jan 20, 2019 at 11:26 AM Lubomir Rintel <lkundrak@v3.sk> wrote:
    >
    > The Marvell Armada DRM master device is a virtual device needed to list all
    > nodes that comprise the graphics subsystem.
    >
    > Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
    > ---
    > .../display/armada/marvell-armada-drm.txt | 24 +++++++++++++++++++
    > 1 file changed, 24 insertions(+)
    >
    > diff --git a/Documentation/devicetree/bindings/display/armada/marvell-armada-drm.txt b/Documentation/devicetree/bindings/display/armada/marvell-armada-drm.txt
    > index de4cca9432c8..3dbfa8047f0b 100644
    > --- a/Documentation/devicetree/bindings/display/armada/marvell-armada-drm.txt
    > +++ b/Documentation/devicetree/bindings/display/armada/marvell-armada-drm.txt
    > @@ -1,3 +1,27 @@
    > +Marvell Armada DRM master device
    > +================================
    > +
    > +The Marvell Armada DRM master device is a virtual device needed to list all
    > +nodes that comprise the graphics subsystem.
    > +
    > +Required properties:
    > +
    > + - compatible: value should be "marvell,dove-display-subsystem",
    > + "marvell,armada-display-subsystem"
    > + - ports: a list of phandles pointing to display interface ports of CRTC
    > + devices
    > + - memory-region: phandle to a node describing memory to be used for the
    > + framebuffer
    > +
    > +Example:
    > +
    > + display-subsystem {
    > + compatible = "marvell,dove-display-subsystem",
    > + "marvell,armada-display-subsystem";
    > + memory-region = <&display_reserved>;
    > + ports = <&lcd0_port>;

    If there is only one device, you don't need this virtual node.


    > + };
    > +
    > Marvell Armada LCD controller
    > =============================
    >
    > --
    > 2.20.1
    >

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