Quoting Jacopo Mondi (2021-12-16 16:34:36)
> Enable the MAX9286 GMSL deserializers on Condor-V3H board.
>
> Connected cameras should be defined in a device-tree overlay or included
> after these definitions.
>
> Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
This looks good to me. It now enables the CSI2s, and the max9286 will
have no children. Will this create a completed media graph that simply
has no cameras connected? Or will the max9286 return a failure if there
are no devices attached.
I could look this up I guess, but I'm only curious of what potential
side effects there are of having a now successfully probed CSI2
receiver/VIN but without any cameras.
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
> ---
> .../boot/dts/renesas/r8a77980-condor.dts | 193 ++++++++++++++++++
> 1 file changed, 193 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/renesas/r8a77980-condor.dts b/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
> index 3d6d10c82f48..2eb2b852ddca 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
> +++ b/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
> @@ -6,6 +6,8 @@
> * Copyright (C) 2018 Cogent Embedded, Inc.
> */
>
> +#include <dt-bindings/gpio/gpio.h>
> +
> /dts-v1/;
> #include "r8a77980.dtsi"
> #include <dt-bindings/gpio/gpio.h>
> @@ -108,6 +110,34 @@ channel0 {
> };
> };
>
> +&csi40 {
> + status = "okay";
> +
> + ports {
> + port@0 {
> + csi40_in: endpoint {
> + clock-lanes = <0>;
> + data-lanes = <1 2 3 4>;
> + remote-endpoint = <&max9286_out0>;
> + };
> + };
> + };
> +};
> +
> +&csi41 {
> + status = "okay";
> +
> + ports {
> + port@0 {
> + csi41_in: endpoint {
> + clock-lanes = <0>;
> + data-lanes = <1 2 3 4>;
> + remote-endpoint = <&max9286_out1>;
> + };
> + };
> + };
> +};
> +
> &du {
> clocks = <&cpg CPG_MOD 724>,
> <&x1_clk>;
> @@ -200,6 +230,164 @@ adv7511_out: endpoint {
> };
> };
>
> +&i2c1 {
> + pinctrl-0 = <&i2c1_pins>;
> + pinctrl-names = "default";
> +
> + status = "okay";
> + clock-frequency = <400000>;
> +
> + gmsl0: gmsl-deserializer@48 {
> + compatible = "maxim,max9286";
> + reg = <0x48>;
> +
> + maxim,gpio-poc = <0 GPIO_ACTIVE_LOW>;
> + enable-gpios = <&io_expander0 0 GPIO_ACTIVE_HIGH>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + };
> +
> + port@1 {
> + reg = <1>;
> + };
> +
> + port@2 {
> + reg = <2>;
> + };
> +
> + port@3 {
> + reg = <3>;
> + };
> +
> + port@4 {
> + reg = <4>;
> + max9286_out0: endpoint {
> + clock-lanes = <0>;
> + data-lanes = <1 2 3 4>;
> + remote-endpoint = <&csi40_in>;
> + };
> + };
> + };
> +
> + i2c-mux {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + i2c@0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> +
> + status = "disabled";
> + };
> +
> + i2c@1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> +
> + status = "disabled";
> + };
> +
> + i2c@2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> +
> + status = "disabled";
> + };
> +
> + i2c@3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> +
> + status = "disabled";
> + };
> + };
> + };
> +
> + gmsl1: gmsl-deserializer@4a {
> + compatible = "maxim,max9286";
> + reg = <0x4a>;
> +
> + maxim,gpio-poc = <0 GPIO_ACTIVE_LOW>;
> + enable-gpios = <&io_expander1 0 GPIO_ACTIVE_HIGH>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + };
> +
> + port@1 {
> + reg = <1>;
> + };
> +
> + port@2 {
> + reg = <2>;
> + };
> +
> + port@3 {
> + reg = <3>;
> + };
> +
> + port@4 {
> + reg = <4>;
> + max9286_out1: endpoint {
> + clock-lanes = <0>;
> + data-lanes = <1 2 3 4>;
> + remote-endpoint = <&csi41_in>;
> + };
> + };
> + };
> +
> + i2c-mux {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + i2c@0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> +
> + status = "disabled";
> + };
> +
> + i2c@1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> +
> + status = "disabled";
> + };
> +
> + i2c@2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> +
> + status = "disabled";
> + };
> +
> + i2c@3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> +
> + status = "disabled";
> + };
> + };
> + };
> +};
> +
> &lvds0 {
> status = "okay";
>
> @@ -256,6 +444,11 @@ i2c0_pins: i2c0 {
> function = "i2c0";
> };
>
> + i2c1_pins: i2c1 {
> + groups = "i2c1";
> + function = "i2c1";
> + };
> +
> mmc_pins: mmc {
> groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
> function = "mmc";
> --
> 2.33.1
>
