Documentation/devicetree/bindings/media/nxp,imx8mq-mipi-csi2.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/media/nxp,imx8mq-mipi-csi2.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NXP i.MX8MQ MIPI CSI-2 receiver
   8
   9 maintainers:
  10   - Martin Kepplinger <martin.kepplinger@puri.sm>
  11
  12 description: |-
  13   This binding covers the CSI-2 RX PHY and host controller included in the
  14   NXP i.MX8MQ SoC. It handles the sensor/image input and process for all the
  15   input imaging devices.
  16
  17 properties:
  18   compatible:
  19     enum:
  20       - fsl,imx8mq-mipi-csi2
  21
  22   reg:
  23     maxItems: 1
  24
  25   clocks:
  26     items:
  27       - description: core is the RX Controller Core Clock input. This clock
  28                      must be exactly equal to or faster than the receive
  29                      byteclock from the RX DPHY.
  30       - description: esc is the Rx Escape Clock. This must be the same escape
  31                      clock that the RX DPHY receives.
  32       - description: ui is the pixel clock (phy_ref up to 333Mhz).
  33                      See the reference manual for details.
  34
  35   clock-names:
  36     items:
  37       - const: core
  38       - const: esc
  39       - const: ui
  40
  41   power-domains:
  42     maxItems: 1
  43
  44   resets:
  45     items:
  46       - description: CORE_RESET reset register bit definition
  47       - description: PHY_REF_RESET reset register bit definition
  48       - description: ESC_RESET reset register bit definition
  49
  50   fsl,mipi-phy-gpr:
  51     description: |
  52       The phandle to the imx8mq syscon iomux-gpr with the register
  53       for setting RX_ENABLE for the mipi receiver.
  54
  55       The format should be as follows:
  56       <gpr req_gpr>
  57       gpr is the phandle to general purpose register node.
  58       req_gpr is the gpr register offset of RX_ENABLE for the mipi phy.
  59     $ref: /schemas/types.yaml#/definitions/phandle-array
  60     items:
  61       items:
  62         - description: The 'gpr' is the phandle to general purpose register node.
  63         - description: The 'req_gpr' is the gpr register offset containing
  64                        CSI2_1_RX_ENABLE or CSI2_2_RX_ENABLE respectively.
  65           maximum: 0xff
  66
  67   interconnects:
  68     maxItems: 1
  69
  70   interconnect-names:
  71     const: dram
  72
  73   ports:
  74     $ref: /schemas/graph.yaml#/properties/ports
  75
  76     properties:
  77       port@0:
  78         $ref: /schemas/graph.yaml#/$defs/port-base
  79         unevaluatedProperties: false
  80         description:
  81           Input port node, single endpoint describing the CSI-2 transmitter.
  82
  83         properties:
  84           endpoint:
  85             $ref: video-interfaces.yaml#
  86             unevaluatedProperties: false
  87
  88             properties:
  89               data-lanes:
  90                 items:
  91                   minItems: 1
  92                   maxItems: 4
  93                   items:
  94                     - const: 1
  95                     - const: 2
  96                     - const: 3
  97                     - const: 4
  98
  99             required:
 100               - data-lanes
 101
 102       port@1:
 103         $ref: /schemas/graph.yaml#/properties/port
 104         description:
 105           Output port node
 106
 107     required:
 108       - port@0
 109       - port@1
 110
 111 required:
 112   - compatible
 113   - reg
 114   - clocks
 115   - clock-names
 116   - power-domains
 117   - resets
 118   - fsl,mipi-phy-gpr
 119   - ports
 120
 121 additionalProperties: false
 122
 123 examples:
 124   - |
 125     #include <dt-bindings/clock/imx8mq-clock.h>
 126     #include <dt-bindings/interconnect/imx8mq.h>
 127     #include <dt-bindings/reset/imx8mq-reset.h>
 128
 129     csi@30a70000 {
 130         compatible = "fsl,imx8mq-mipi-csi2";
 131         reg = <0x30a70000 0x1000>;
 132         clocks = <&clk IMX8MQ_CLK_CSI1_CORE>,
 133                  <&clk IMX8MQ_CLK_CSI1_ESC>,
 134                  <&clk IMX8MQ_CLK_CSI1_PHY_REF>;
 135         clock-names = "core", "esc", "ui";
 136         assigned-clocks = <&clk IMX8MQ_CLK_CSI1_CORE>,
 137                           <&clk IMX8MQ_CLK_CSI1_PHY_REF>,
 138                           <&clk IMX8MQ_CLK_CSI1_ESC>;
 139         assigned-clock-rates = <266000000>, <200000000>, <66000000>;
 140         assigned-clock-parents = <&clk IMX8MQ_SYS1_PLL_266M>,
 141                                  <&clk IMX8MQ_SYS2_PLL_1000M>,
 142                                  <&clk IMX8MQ_SYS1_PLL_800M>;
 143         power-domains = <&pgc_mipi_csi1>;
 144         resets = <&src IMX8MQ_RESET_MIPI_CSI1_CORE_RESET>,
 145                  <&src IMX8MQ_RESET_MIPI_CSI1_PHY_REF_RESET>,
 146                  <&src IMX8MQ_RESET_MIPI_CSI1_ESC_RESET>;
 147         fsl,mipi-phy-gpr = <&iomuxc_gpr 0x88>;
 148         interconnects = <&noc IMX8MQ_ICM_CSI1 &noc IMX8MQ_ICS_DRAM>;
 149         interconnect-names = "dram";
 150
 151         ports {
 152             #address-cells = <1>;
 153             #size-cells = <0>;
 154
 155             port@0 {
 156                 reg = <0>;
 157
 158                 imx8mm_mipi_csi_in: endpoint {
 159                     remote-endpoint = <&imx477_out>;
 160                     data-lanes = <1 2 3 4>;
 161                 };
 162             };
 163
 164             port@1 {
 165                 reg = <1>;
 166
 167                 imx8mm_mipi_csi_out: endpoint {
 168                     remote-endpoint = <&csi_in>;
 169                 };
 170             };
 171         };
 172     };
 173
 174 ...