From: Laurentiu Palcu laurentiu.palcu@nxp.com
Add bindings for iMX8MQ Display Controller Subsystem.
Signed-off-by: Laurentiu Palcu laurentiu.palcu@nxp.com Reviewed-by: Rob Herring robh@kernel.org --- .../bindings/display/imx/nxp,imx8mq-dcss.yaml | 104 ++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
diff --git a/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml b/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml new file mode 100644 index 000000000000..68e4635e4874 --- /dev/null +++ b/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml @@ -0,0 +1,104 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2019 NXP +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/display/imx/nxp,imx8mq-dcss.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: iMX8MQ Display Controller Subsystem (DCSS) + +maintainers: + - Laurentiu Palcu laurentiu.palcu@nxp.com + +description: + + The DCSS (display controller sub system) is used to source up to three + display buffers, compose them, and drive a display using HDMI 2.0a(with HDCP + 2.2) or MIPI-DSI. The DCSS is intended to support up to 4kp60 displays. HDR10 + image processing capabilities are included to provide a solution capable of + driving next generation high dynamic range displays. + +properties: + compatible: + const: nxp,imx8mq-dcss + + reg: + items: + - description: DCSS base address and size, up to IRQ steer start + - description: DCSS BLKCTL base address and size + + interrupts: + items: + - description: Context loader completion and error interrupt + - description: DTG interrupt used to signal context loader trigger time + - description: DTG interrupt for Vblank + + interrupt-names: + items: + - const: ctxld + - const: ctxld_kick + - const: vblank + + clocks: + items: + - description: Display APB clock for all peripheral PIO access interfaces + - description: Display AXI clock needed by DPR, Scaler, RTRAM_CTRL + - description: RTRAM clock + - description: Pixel clock, can be driven either by HDMI phy clock or MIPI + - description: DTRC clock, needed by video decompressor + + clock-names: + items: + - const: apb + - const: axi + - const: rtrm + - const: pix + - const: dtrc + + assigned-clocks: + items: + - description: Phandle and clock specifier of IMX8MQ_CLK_DISP_AXI_ROOT + - description: Phandle and clock specifier of IMX8MQ_CLK_DISP_RTRM + - description: Phandle and clock specifier of either IMX8MQ_VIDEO2_PLL1_REF_SEL or + IMX8MQ_VIDEO_PLL1_REF_SEL + + assigned-clock-parents: + items: + - description: Phandle and clock specifier of IMX8MQ_SYS1_PLL_800M + - description: Phandle and clock specifier of IMX8MQ_SYS1_PLL_800M + - description: Phandle and clock specifier of IMX8MQ_CLK_27M + + assigned-clock-rates: + items: + - description: Must be 800 MHz + - description: Must be 400 MHz + + port: + type: object + description: + A port node pointing to the input port of a HDMI/DP or MIPI display bridge. + +additionalProperties: false + +examples: + - | + dcss: display-controller@32e00000 { + compatible = "nxp,imx8mq-dcss"; + reg = <0x32e00000 0x2d000>, <0x32e2f000 0x1000>; + interrupts = <6>, <8>, <9>; + interrupt-names = "ctxld", "ctxld_kick", "vblank"; + interrupt-parent = <&irqsteer>; + clocks = <&clk 248>, <&clk 247>, <&clk 249>, + <&clk 254>,<&clk 122>; + clock-names = "apb", "axi", "rtrm", "pix", "dtrc"; + assigned-clocks = <&clk 107>, <&clk 109>, <&clk 266>; + assigned-clock-parents = <&clk 78>, <&clk 78>, <&clk 3>; + assigned-clock-rates = <800000000>, + <400000000>; + port { + dcss_out: endpoint { + remote-endpoint = <&hdmi_in>; + }; + }; + }; +