Hi Jacopo and Kieran,
Thank you for the patch.
On Mon, Apr 19, 2021 at 04:23:44PM +0200, Jacopo Mondi wrote:
> From: Kieran Bingham <kieran.bingham@xxxxxxxxxxxxxxxx>
>
> Describe the FAKRA connector available on Eagle board that allows
> connecting GMSL camera modules such as IMI RDACM20 and RDACM21.
>
> Signed-off-by: Kieran Bingham <kieran.bingham@xxxxxxxxxxxxxxxx>
> Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/renesas/eagle-gmsl.dtsi | 178 ++++++++++++++++++++
> 1 file changed, 178 insertions(+)
> create mode 100644 arch/arm64/boot/dts/renesas/eagle-gmsl.dtsi
>
> diff --git a/arch/arm64/boot/dts/renesas/eagle-gmsl.dtsi b/arch/arm64/boot/dts/renesas/eagle-gmsl.dtsi
> new file mode 100644
> index 000000000000..d2e48dc3e820
> --- /dev/null
> +++ b/arch/arm64/boot/dts/renesas/eagle-gmsl.dtsi
> @@ -0,0 +1,178 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Device Tree Source (overlay) for the Eagle V3M GMSL connectors
> + *
> + * Copyright (C) 2017 Ideas on Board <kieran.bingham@xxxxxxxxxxxxxxxx>
> + * Copyright (C) 2021 Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
> + *
> + * This overlay allows you to define GMSL cameras connected to the FAKRA
> + * connectors on the Eagle-V3M (or compatible) board.
> + *
> + * The following cameras are currently supported: RDACM20 and RDACM21.
> + *
> + * The board .dts files that include this select which cameras are in use
> + * by specifying the camera model with:
> + *
> + * #define GMSL_CAMERA_RDACM20
> + * or
> + * #define GMSL_CAMERA_RDACM21
> + *
> + * And which cameras are connected to the board by defining:
> + * #define GMSL_CAMERA_0
> + * #define GMSL_CAMERA_1
> + * #define GMSL_CAMERA_2
> + * #define GMSL_CAMERA_3
> + */
> +
> +#include <dt-bindings/gpio/gpio.h>
> +
> +/* Validate the board file settings. */
> +#if !defined(GMSL_CAMERA_RDACM20) && !defined(GMSL_CAMERA_RDACM21)
> +#error "Camera model should be defined by the board file"
> +#endif
> +
> +#if defined(GMSL_CAMERA_RDACM20) && defined(GMSL_CAMERA_RDACM21)
> +#error "A single camera model should be selected"
> +#endif
This won't scale when we'll support more than two different cameras, but
we'll switch to overlays then :-)
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> +
> +#if !defined(GMSL_CAMERA_0) && !defined(GMSL_CAMERA_1) && \
> + !defined(GMSL_CAMERA_2) && !defined(GMSL_CAMERA_3)
> +#error "At least one camera should be selected"
> +#endif
> +
> +#if defined(GMSL_CAMERA_RDACM20)
> +#define GMSL_CAMERA_MODEL "imi,rdacm20"
> +#elif defined(GMSL_CAMERA_RDACM21)
> +#define GMSL_CAMERA_MODEL "imi,rdacm21"
> +#endif
> +
> +&vin0 {
> + status = "okay";
> +};
> +
> +&vin1 {
> + status = "okay";
> +};
> +
> +&vin2 {
> + status = "okay";
> +};
> +
> +&vin3 {
> + status = "okay";
> +};
> +
> +&gmsl {
> + status = "okay";
> +
> +#if defined(GMSL_CAMERA_RDACM21)
> + maxim,reverse-channel-microvolt = <100000>;
> +#endif
> +
> + ports {
> +#ifdef GMSL_CAMERA_0
> + port@0 {
> + max9286_in0: endpoint {
> + remote-endpoint = <&fakra_con0>;
> + };
> + };
> +#endif
> +
> +#ifdef GMSL_CAMERA_1
> + port@1 {
> + max9286_in1: endpoint{
> + remote-endpoint = <&fakra_con1>;
> + };
> +
> + };
> +#endif
> +
> +#ifdef GMSL_CAMERA_2
> + port@2 {
> + max9286_in2: endpoint {
> + remote-endpoint = <&fakra_con2>;
> + };
> +
> + };
> +#endif
> +
> +#ifdef GMSL_CAMERA_3
> + port@3 {
> + max9286_in3: endpoint {
> + remote-endpoint = <&fakra_con3>;
> + };
> +
> + };
> +#endif
> + };
> +
> + i2c-mux {
> +#ifdef GMSL_CAMERA_0
> + i2c@0 {
> + status = "okay";
> +
> + camera@51 {
> + compatible = GMSL_CAMERA_MODEL;
> + reg = <0x51>, <0x61>;
> +
> + port {
> + fakra_con0: endpoint {
> + remote-endpoint = <&max9286_in0>;
> + };
> + };
> + };
> + };
> +#endif
> +
> +#ifdef GMSL_CAMERA_1
> + i2c@1 {
> + status = "okay";
> +
> + camera@52 {
> + compatible = GMSL_CAMERA_MODEL;
> + reg = <0x52>, <0x62>;
> +
> + port {
> + fakra_con1: endpoint {
> + remote-endpoint = <&max9286_in1>;
> + };
> + };
> + };
> + };
> +#endif
> +
> +#ifdef GMSL_CAMERA_2
> + i2c@2 {
> + status = "okay";
> +
> + camera@53 {
> + compatible = GMSL_CAMERA_MODEL;
> + reg = <0x53>, <0x63>;
> +
> + port {
> + fakra_con2: endpoint {
> + remote-endpoint = <&max9286_in2>;
> + };
> + };
> + };
> + };
> +#endif
> +
> +#ifdef GMSL_CAMERA_3
> + i2c@3 {
> + status = "okay";
> +
> + camera@54 {
> + compatible = GMSL_CAMERA_MODEL;
> + reg = <0x54>, <0x64>;
> +
> + port {
> + fakra_con3: endpoint {
> + remote-endpoint = <&max9286_in3>;
> + };
> + };
> + };
> + };
> +#endif
> + };
> +};
--
Regards,
Laurent Pinchart
