On Fri, Sep 22, 2023 at 03:21:05PM +0800, Moudy Ho wrote: > Support for MT8195 RDMA has been added, allowing for > the configuration of multiple MDP3 pipes. > Furthermore, this particular device does not require > sharing SRAM with RSZ. I'm sorry if I am going over past arguments, if this is 90% the same as the 8193 rdma, why the extraction + mostly duplicate file, rather than covering whatever clocks/mboxes differences with an if/then/else in a single file? Thanks, Conor. > > Signed-off-by: Moudy Ho <moudy.ho@xxxxxxxxxxxx> > --- > .../media/mediatek,mdp3-rdma-8195.yaml | 64 +++++++++++++++++++ > 1 file changed, 64 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-rdma-8195.yaml > > diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma-8195.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma-8195.yaml > new file mode 100644 > index 000000000000..f10139aec3c5 > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma-8195.yaml > @@ -0,0 +1,64 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/media/mediatek,mdp3-rdma-8195.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: MediaTek MT8195 Read Direct Memory Access > + > +maintainers: > + - Matthias Brugger <matthias.bgg@xxxxxxxxx> > + - Moudy Ho <moudy.ho@xxxxxxxxxxxx> > + > +description: | > + MediaTek Read Direct Memory Access(RDMA) component used to do read DMA. > + This type of component is configured when there are multiple MDP3 pipelines > + that belong to different MMSYS subsystems. > + It contains one line buffer to store the sufficient pixel data, and > + must be siblings to the central MMSYS_CONFIG node. > + For a description of the MMSYS_CONFIG binding, see > + Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml > + for details. > + > +allOf: > + - $ref: mediatek,mdp3-rdma-common.yaml# > + > +properties: > + compatible: > + items: > + - const: mediatek,mt8195-mdp3-rdma > + > + clocks: > + maxItems: 1 > + > + mboxes: > + maxItems: 5 > + > +required: > + - compatible > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/clock/mt8195-clk.h> > + #include <dt-bindings/gce/mt8195-gce.h> > + #include <dt-bindings/power/mt8195-power.h> > + #include <dt-bindings/memory/mt8195-memory-port.h> > + > + dma-controller@14001000 { > + compatible = "mediatek,mt8195-mdp3-rdma"; > + reg = <0x14001000 0x1000>; > + mediatek,gce-client-reg = <&gce1 SUBSYS_1400XXXX 0x1000 0x1000>; > + mediatek,gce-events = <CMDQ_EVENT_VPP0_MDP_RDMA_SOF>, > + <CMDQ_EVENT_VPP0_MDP_RDMA_FRAME_DONE>; > + power-domains = <&spm MT8195_POWER_DOMAIN_VPPSYS0>; > + iommus = <&iommu_vpp M4U_PORT_L4_MDP_RDMA>; > + clocks = <&vppsys0 CLK_VPP0_MDP_RDMA>; > + mboxes = <&gce1 12 CMDQ_THR_PRIO_1>, > + <&gce1 13 CMDQ_THR_PRIO_1>, > + <&gce1 14 CMDQ_THR_PRIO_1>, > + <&gce1 21 CMDQ_THR_PRIO_1>, > + <&gce1 22 CMDQ_THR_PRIO_1>; > + #dma-cells = <1>; > + }; > -- > 2.18.0 >
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