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Diffstat (limited to 'Documentation/devicetree/bindings/display/xlnx/xlnx,mixer.txt')
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1 files changed, 163 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/xlnx/xlnx,mixer.txt b/Documentation/devicetree/bindings/display/xlnx/xlnx,mixer.txt new file mode 100644 index 000000000000..20f4cec27175 --- /dev/null +++ b/Documentation/devicetree/bindings/display/xlnx/xlnx,mixer.txt @@ -0,0 +1,163 @@ +Device-Tree bindings for Xilinx Video Mixer IP core + +The IP core provides a flexible video processing block for alpha blending +and compositing multiple video and/or graphics layers. +Support for up to sixteen layers based on IP version, with an optional logo +layer, using a combination of video inputs from either frame buffer or +streaming video cores (through AXI4-Stream interfaces) is provided. +The Video Mixer always has one streaming input layer, known as master layer. + +Required properties: + - compatible: Must contain atleast one of + "xlnx,mixer-4.0" (MIXER 4.0 version) + "xlnx,mixer-3.0" (MIXER 3.0 version) + - reg: Base address and size of the IP core. + - interrupts: Interrupt number. + - interrupts-parent: phandle for interrupt controller. + - reset-gpio: gpio to reset the mixer IP + - xlnx,dma-addr-width: dma address width, valid values are 32 and 64 + - xlnx,bpc: bits per component for mixer + - xlnx,ppc: pixel per clock for mixer + - xlnx,num-layers: Total number of layers (excluding logo) + Value ranges from 1-9 for compatible string xlnx,mixer-3.0 and + Value ranges from 1-17 for comptaible string xlnx,mixer-4.0 + - layer_[x]: node for [x] layer + - xlnx,layer-id: layer identifier number + - xlnx,vformat: video format for layer. See list of supported formats below. + - xlnx,layer-max-width: max layer width, mandatory for master layer + for overlay layers if scaling is alowed then this is mandatory otherwise + not required for overlay layers + - xlnx,layer-max-height: max layer height, mandatory for master layer + Not required for overlay layers + - xlnx,layer-primary: denotes the primary layer, should be mentioned in node + of layer which is expected to be constructing the primary plane + +Optional properties: + - dmas: dma attach to layer, mandatory for master layer + for rest other layers its optional + - dma-names: Should be "dma0", for more details on DMA identifier string + refer Documentation/devicetree/bindings/dma/dma.txt + - xlnx,layer-streaming: denotes layer can be streaming, + mandatory for master layer. Streaming layers need external dma, where + as non streaming layers read directly from memory. + - xlnx,layer-alpha: denotes layer can do alpha compositing + - xlnx,layer-scale: denotes layer can be scale to 2x and 4x + - xlnx,logo-layer: denotes logo layer is enable + - logo: logo layer + - xlnx,bridge: phandle to bridge node. + This handle is required only when VTC is connected as bridge. + +Supported Formats: + Mixer IP Format Driver supported Format String + BGR888 "RG24" + RGB888 "BG24" + XBGR2101010 "XB30" + XRGB8888 "XR24" + RGBA8888 "RA24" + ABGR8888 "AB24" + ARGB8888 "AR24" + XBGR8888 "XB24" + YUYV "YUYV" + UYVY "UYVY" + AYUV "AYUV" + NV12 "NV12" + NV16 "NV16" + Y8 "GREY" + Y10 "Y10 " (Note: Space included) + XVUY2101010 "XV30" + VUY888 "VU24" + XVUY8888 "XV24" + XV15 "XV15" + XV20 "XV20" +Note : Format strings are case sensitive. + +Example: + v_mix_0: v_mix@80100000 { + compatible = "xlnx,mixer-3.0"; + interrupt-parent = <&gic>; + interrupts = <0 93 4>; + reg = <0x0 0x80100000 0x0 0x80000>; + + xlnx,dma-addr-width=<32>; + reset-gpios = <&gpio 1 1>; + + xlnx,bpc = <8>; + xlnx,ppc = <2>; + xlnx,num-layers = <8>; + xlnx,logo-layer; + xlnx,bridge = <&v_tc_0>; + + mixer_port: mixer_port@0 { + reg = <0>; + mixer_crtc: endpoint { + remote-endpoint = <&sdi_encoder>; + }; + }; + xv_mix_master: layer_0 { + xlnx,layer-id = <0>; + xlnx,vformat = "YUYV"; + xlnx,layer-max-width = <4096>; + xlnx,layer-height = <2160>; + dmas = <&axi_vdma_0 0>; + dma-names = "dma0"; + xlnx,layer-streaming; + xlnx,layer-primary; + }; + xv_mix_overlay_1: layer_1 { + xlnx,layer-id = <1>; + xlnx,vformat = "NV16"; + xlnx,layer-alpha; + xlnx,layer-scale; + xlnx,layer-max-width=<1920>; + }; + xv_mix_overlay_2: layer_2 { + xlnx,layer-id = <2>; + xlnx,vformat = "YUYV"; + xlnx,layer-alpha; + xlnx,layer-scale; + xlnx,layer-max-width=<1920>; + }; + xv_mix_overlay_3: layer_3 { + xlnx,layer-id = <3>; + xlnx,vformat = "AYUV"; + xlnx,layer-alpha; + xlnx,layer-scale; + xlnx,layer-max-width=<1920>; + }; + xv_mix_overlay_4: layer_4 { + xlnx,layer-id = <4>; + xlnx,vformat = "GREY"; + dmas = <&scaler_v_frmbuf_rd_0 0>; + dma-names = "dma0"; + xlnx,layer-streaming; + xlnx,layer-alpha; + xlnx,layer-scale; + xlnx,layer-max-width=<1920>; + }; + xv_mix_overlay_5: layer_5 { + xlnx,layer-id = <5>; + xlnx,vformat = "AB24"; + xlnx,layer-alpha; + xlnx,layer-scale; + xlnx,layer-max-width=<1920>; + }; + xv_mix_overlay_6: layer_6 { + xlnx,layer-id = <6>; + xlnx,vformat = "XB24"; + xlnx,layer-alpha; + xlnx,layer-scale; + xlnx,layer-max-width=<1920>; + }; + xv_mix_overlay_7: layer_7 { + xlnx,layer-id = <7>; + xlnx,vformat = "BG24"; + xlnx,layer-alpha; + xlnx,layer-scale; + xlnx,layer-max-width=<1920>; + }; + xv_mix_logo: logo { + xlnx,layer-id = <8>; + xlnx,logo-height = <64>; + xlnx,logo-width = <64>; + }; + }; |