| Mediatek Video Encoder |
| |
| Mediatek Video Encoder is the video encode hw present in Mediatek SoCs which |
| supports high resolution encoding functionalities. |
| |
| Required properties: |
| - compatible : must be one of the following string: |
| "mediatek,mt8173-vcodec-enc-vp8" for mt8173 vp8 encoder. |
| "mediatek,mt8173-vcodec-enc" for mt8173 avc encoder. |
| "mediatek,mt8183-vcodec-enc" for MT8183 encoder. |
| "mediatek,mt8192-vcodec-enc" for MT8192 encoder. |
| - reg : Physical base address of the video encoder registers and length of |
| memory mapped region. |
| - interrupts : interrupt number to the cpu. |
| - mediatek,larb : must contain the local arbiters in the current Socs. |
| - clocks : list of clock specifiers, corresponding to entries in |
| the clock-names property. |
| - clock-names: avc encoder must contain "venc_sel", vp8 encoder must |
| contain "venc_lt_sel", decoder must contain "vcodecpll", "univpll_d2", |
| "clk_cci400_sel", "vdec_sel", "vdecpll", "vencpll", "venc_lt_sel", |
| "vdec_bus_clk_src". |
| - iommus : should point to the respective IOMMU block with master port as |
| argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt |
| for details. |
| - dma-ranges : describes how the physical address space of the IOMMU maps |
| to memory. |
| One of the two following nodes: |
| - mediatek,vpu : the node of the video processor unit, if using VPU. |
| - mediatek,scp : the node of the SCP unit, if using SCP. |
| |
| |
| Example: |
| |
| vcodec_enc_avc: vcodec@18002000 { |
| compatible = "mediatek,mt8173-vcodec-enc"; |
| reg = <0 0x18002000 0 0x1000>; |
| interrupts = <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>; |
| iommus = <&iommu M4U_PORT_VENC_RCPU>, |
| <&iommu M4U_PORT_VENC_REC>, |
| <&iommu M4U_PORT_VENC_BSDMA>, |
| <&iommu M4U_PORT_VENC_SV_COMV>, |
| <&iommu M4U_PORT_VENC_RD_COMV>, |
| <&iommu M4U_PORT_VENC_CUR_LUMA>, |
| <&iommu M4U_PORT_VENC_CUR_CHROMA>, |
| <&iommu M4U_PORT_VENC_REF_LUMA>, |
| <&iommu M4U_PORT_VENC_REF_CHROMA>, |
| <&iommu M4U_PORT_VENC_NBM_RDMA>, |
| <&iommu M4U_PORT_VENC_NBM_WDMA>; |
| mediatek,larb = <&larb3>; |
| mediatek,vpu = <&vpu>; |
| clocks = <&topckgen CLK_TOP_VENC_SEL>; |
| clock-names = "venc_sel"; |
| assigned-clocks = <&topckgen CLK_TOP_VENC_SEL>; |
| assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL>; |
| }; |
| |
| vcodec_enc_vp8: vcodec@19002000 { |
| compatible = "mediatek,mt8173-vcodec-enc-vp8"; |
| reg = <0 0x19002000 0 0x1000>; /* VENC_LT_SYS */ |
| interrupts = <GIC_SPI 202 IRQ_TYPE_LEVEL_LOW>; |
| iommus = <&iommu M4U_PORT_VENC_RCPU_SET2>, |
| <&iommu M4U_PORT_VENC_REC_FRM_SET2>, |
| <&iommu M4U_PORT_VENC_BSDMA_SET2>, |
| <&iommu M4U_PORT_VENC_SV_COMA_SET2>, |
| <&iommu M4U_PORT_VENC_RD_COMA_SET2>, |
| <&iommu M4U_PORT_VENC_CUR_LUMA_SET2>, |
| <&iommu M4U_PORT_VENC_CUR_CHROMA_SET2>, |
| <&iommu M4U_PORT_VENC_REF_LUMA_SET2>, |
| <&iommu M4U_PORT_VENC_REC_CHROMA_SET2>; |
| mediatek,larb = <&larb5>; |
| mediatek,vpu = <&vpu>; |
| clocks = <&topckgen CLK_TOP_VENC_LT_SEL>; |
| clock-names = "venc_lt_sel"; |
| assigned-clocks = <&topckgen CLK_TOP_VENC_LT_SEL>; |
| assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL_370P5>; |
| }; |