arch/arm/boot/dts/overlays/tc358743-overlay.dts

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // Definitions for Toshiba TC358743 HDMI to CSI2 bridge on VC I2C bus
   3 /dts-v1/;
   4 /plugin/;
   5
   6 /{
   7         compatible = "brcm,bcm2835";
   8
   9         fragment@0 {
  10                 target = <&i2c_vc>;
  11                 __overlay__ {
  12                         #address-cells = <1>;
  13                         #size-cells = <0>;
  14                         status = "okay";
  15
  16                         tc358743@0f {
  17                                 compatible = "toshiba,tc358743";
  18                                 reg = <0x0f>;
  19                                 status = "okay";
  20
  21                                 clocks = <&tc358743_clk>;
  22                                 clock-names = "refclk";
  23
  24                                 tc358743_clk: bridge-clk {
  25                                         compatible = "fixed-clock";
  26                                         #clock-cells = <0>;
  27                                         clock-frequency = <27000000>;
  28                                 };
  29
  30                                 port {
  31                                         tc358743: endpoint {
  32                                                 remote-endpoint = <&csi1_ep>;
  33                                                 clock-lanes = <0>;
  34                                                 clock-noncontinuous;
  35                                                 link-frequencies =
  36                                                         /bits/ 64 <486000000>;
  37                                         };
  38                                 };
  39                         };
  40                 };
  41         };
  42
  43         fragment@1 {
  44                 target = <&csi1>;
  45                 __overlay__ {
  46                         status = "okay";
  47
  48                         port {
  49                                 csi1_ep: endpoint {
  50                                         remote-endpoint = <&tc358743>;
  51                                 };
  52                         };
  53                 };
  54         };
  55
  56         fragment@2 {
  57                 target = <&i2c_vc>;
  58                 __overlay__ {
  59                         tc358743@0f {
  60                                 port {
  61                                         endpoint {
  62                                                 data-lanes = <1 2>;
  63                                         };
  64                                 };
  65                         };
  66                 };
  67         };
  68
  69         fragment@3 {
  70                 target = <&i2c_vc>;
  71                 __dormant__ {
  72                         tc358743@0f {
  73                                 port {
  74                                         endpoint {
  75                                                 data-lanes = <1 2 3 4>;
  76                                         };
  77                                 };
  78                         };
  79                 };
  80         };
  81
  82         fragment@4 {
  83                 target = <&i2c0_pins>;
  84                 __dormant__ {
  85                         brcm,pins = <28 29>;
  86                         brcm,function = <4>; /* alt0 */
  87                 };
  88         };
  89         fragment@5 {
  90                 target = <&i2c0_pins>;
  91                 __overlay__ {
  92                         brcm,pins = <44 45>;
  93                         brcm,function = <5>; /* alt1 */
  94                 };
  95         };
  96         fragment@6 {
  97                 target = <&i2c0_pins>;
  98                 __dormant__ {
  99                         brcm,pins = <0 1>;
 100                         brcm,function = <4>; /* alt0 */
 101                 };
 102         };
 103         fragment@7 {
 104                 target = <&i2c_vc>;
 105                 __overlay__ {
 106                         status = "okay";
 107                 };
 108         };
 109
 110         __overrides__ {
 111                 i2c_pins_0_1 = <0>,"-4-5+6";
 112                 i2c_pins_28_29 = <0>,"+4-5-6";
 113                 4lane = <0>, "-2+3";
 114                 link-frequency = <&tc358743>,"link-frequencies#0";
 115         };
 116 };