[3/3] arm64: dts: renesas: Add panel overlay for Draak and Ebisu boards

The Draak and Ebisu boards support an optional LVDS panel. One
compatible panel is the Mitsubishi AA104XD12. Add a corresponding DT
overlay.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/arm64/boot/dts/renesas/Makefile          |  1 +
 .../renesas/draak-ebisu-panel-aa104xd12.dts   | 32 +++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dts

Quoting Laurent Pinchart (2021-12-12 01:33:51)
> The Draak and Ebisu boards support an optional LVDS panel. One
> compatible panel is the Mitsubishi AA104XD12. Add a corresponding DT
> overlay.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> ---
>  arch/arm64/boot/dts/renesas/Makefile          |  1 +
>  .../renesas/draak-ebisu-panel-aa104xd12.dts   | 32 +++++++++++++++++++
>  2 files changed, 33 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dts
> 
> diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
> index 982ca3e0e86f..5e831bd33828 100644
> --- a/arch/arm64/boot/dts/renesas/Makefile
> +++ b/arch/arm64/boot/dts/renesas/Makefile
> @@ -76,3 +76,4 @@ dtb-$(CONFIG_ARCH_R8A77965) += r8a779m5-salvator-xs.dtb
>  dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc.dtb
>  
>  dtb-$(CONFIG_ARCH_RCAR_GEN3) += salvator-panel-aa104xd12.dtbo
> +dtb-$(CONFIG_ARCH_RCAR_GEN3) += draak-ebisu-panel-aa104xd12.dtbo
> diff --git a/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dts b/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dts
> new file mode 100644
> index 000000000000..0c5dc3df5247
> --- /dev/null
> +++ b/arch/arm64/boot/dts/renesas/draak-ebisu-panel-aa104xd12.dts
> @@ -0,0 +1,32 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Device Tree overlay for the AA104XD12 panel connected to LVDS1 on a Draak or
> + * Ebisu board
> + *
> + * Copyright 2021 Ideas on Board Oy
> + */
> +
> +/dts-v1/;
> +/plugin/;
> +
> +&{/} {
> +#include "panel-aa104xd12.dtsi"
> +};
> +
> +&{/panel} {
> +       backlight = <&backlight>;
> +
> +       port {
> +               panel_in: endpoint {
> +                       remote-endpoint = <&lvds1_out>;

I guess we can't use parameters in overlays yet? The LVDS reference
seems to be the only difference between the two. But I guess even that
might be hard to pass in as a parameter at boot, or run time...


> +               };
> +       };
> +};
> +
> +&lvds1 {
> +       status = "okay";
> +};
> +
> +&lvds1_out {
> +       remote-endpoint = <&panel_in>;
> +};
> -- 
> Regards,
> 
> Laurent Pinchart
>