Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-mic.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/display/samsung/samsung,exynos5433-mic.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Samsung Exynos5433 SoC Mobile Image Compressor (MIC)
   8
   9 maintainers:
  10   - Inki Dae <inki.dae@samsung.com>
  11   - Joonyoung Shim <jy0922.shim@samsung.com>
  12   - Seung-Woo Kim <sw0312.kim@samsung.com>
  13   - Kyungmin Park <kyungmin.park@samsung.com>
  14   - Krzysztof Kozlowski <krzk@kernel.org>
  15
  16 description: |
  17   MIC (Mobile Image Compressor) resides between DECON and MIPI DSI. MIPI DSI is
  18   not capable of transferring high resoltuion frame data as DECON can send. MIC
  19   solves this problem by compressing the frame data by 1/2 before it is
  20   transferred through MIPI DSI. The compressed frame data must be uncompressed
  21   in the panel PCB.
  22
  23 properties:
  24   compatible:
  25     const: samsung,exynos5433-mic
  26
  27   clocks:
  28     minItems: 2
  29     maxItems: 2
  30
  31   clock-names:
  32     items:
  33       - const: pclk_mic0
  34       - const: sclk_rgb_vclk_to_mic0
  35
  36   ports:
  37     $ref: /schemas/graph.yaml#/properties/ports
  38     description:
  39       Contains a port which is connected to mic node.
  40
  41   power-domains:
  42     maxItems: 1
  43
  44   reg:
  45     maxItems: 1
  46
  47   samsung,disp-syscon:
  48     $ref: /schemas/types.yaml#/definitions/phandle
  49     description:
  50       Phandle to DISP system controller interface.
  51
  52 required:
  53   - compatible
  54   - clocks
  55   - clock-names
  56   - ports
  57   - reg
  58   - samsung,disp-syscon
  59
  60 additionalProperties: false
  61
  62 examples:
  63   - |
  64     #include <dt-bindings/clock/exynos5433.h>
  65     #include <dt-bindings/interrupt-controller/arm-gic.h>
  66
  67     image-processor@13930000 {
  68         compatible = "samsung,exynos5433-mic";
  69         reg = <0x13930000 0x48>;
  70         clocks = <&cmu_disp CLK_PCLK_MIC0>,
  71                  <&cmu_disp CLK_SCLK_RGB_VCLK_TO_MIC0>;
  72         clock-names = "pclk_mic0",
  73                       "sclk_rgb_vclk_to_mic0";
  74         power-domains = <&pd_disp>;
  75         samsung,disp-syscon = <&syscon_disp>;
  76
  77         ports {
  78             #address-cells = <1>;
  79             #size-cells = <0>;
  80
  81             port@0 {
  82                 reg = <0>;
  83                 mic_to_decon: endpoint {
  84                     remote-endpoint = <&decon_to_mic>;
  85                 };
  86             };
  87
  88             port@1 {
  89                 reg = <1>;
  90                 mic_to_dsi: endpoint {
  91                     remote-endpoint = <&dsi_to_mic>;
  92                 };
  93             };
  94         };
  95     };