Re: [PATCH v6 1/5] dt-bindings: media: add mediatek ISP3.0 sensor interface

[AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>]

Il 29/07/24 16:48, Julien Stephan ha scritto:
> From: Louis Kuo <louis.kuo@mediatek.com>
> 
> This adds the bindings, for the mediatek ISP3.0 SENINF module embedded in
> some Mediatek SoC, such as the mt8365
> 
> Signed-off-by: Louis Kuo <louis.kuo@mediatek.com>
> Signed-off-by: Phi-Bang Nguyen <pnguyen@baylibre.com>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Julien Stephan <jstephan@baylibre.com>
> ---
>   .../bindings/media/mediatek,mt8365-seninf.yaml     | 259 +++++++++++++++++++++
>   MAINTAINERS                                        |   7 +
>   2 files changed, 266 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mt8365-seninf.yaml b/Documentation/devicetree/bindings/media/mediatek,mt8365-seninf.yaml
> new file mode 100644
> index 000000000000..8bd78ef424ac
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,mt8365-seninf.yaml
> @@ -0,0 +1,259 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (c) 2023 MediaTek, BayLibre
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/mediatek,mt8365-seninf.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek Sensor Interface 3.0
> +

..snip..

> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/mediatek,mt8365-clk.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/phy/phy.h>
> +    #include <dt-bindings/power/mediatek,mt8365-power.h>
> +
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        csi@15040000 {
> +            compatible = "mediatek,mt8365-seninf";
> +            reg = <0 0x15040000 0 0x6000>;
> +            interrupts = <GIC_SPI 210 IRQ_TYPE_LEVEL_LOW>;
> +            clocks = <&camsys CLK_CAM_SENIF>,
> +                     <&topckgen CLK_TOP_SENIF_SEL>;
> +            clock-names = "camsys", "top_mux";
> +
> +            power-domains = <&spm MT8365_POWER_DOMAIN_CAM>;
> +
> +            phys = <&mipi_csi0 PHY_TYPE_DPHY>, <&mipi_csi1>;
> +            phy-names = "csi0", "csi1";
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +
> +                port@0 {
> +                    reg = <0>;
> +                    seninf_in1: endpoint {
> +                        clock-lanes = <2>;
> +                        data-lanes = <1 3 0 4>;
> +                        remote-endpoint = <&isp1_out>;
> +                    };
> +                };
> +
> +                port@1 {
> +                    reg = <1>;
> +                };
> +
> +                port@2 {
> +                    reg = <2>;
> +                };
> +
> +                port@3 {
> +                    reg = <3>;
> +                };

I don't really get why you got all those empty ports here, as you could simply
avoid adding all of the empty nodes instead.

I don't have strong opinions about that anyway so, regardless of that....

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

> +
> +                port@4 {
> +                    reg = <4>;
> +                    seninf_camsv1_endpoint: endpoint {
> +                        remote-endpoint = <&camsv1_endpoint>;
> +                    };
> +                };
> +
> +                port@5 {
> +                    reg = <5>;
> +                    seninf_camsv2_endpoint: endpoint {
> +                        remote-endpoint = <&camsv2_endpoint>;
> +                    };
> +                };
> +
> +                port@6 {
> +                    reg = <6>;
> +                };
> +
> +                port@7 {
> +                    reg = <7>;
> +                };
> +
> +                port@8 {
> +                    reg = <8>;
> +                };
> +
> +                port@9 {
> +                    reg = <9>;
> +                };
> +            };
> +        };
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index d6c90161c7bf..6bd7df1c3e08 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -14158,6 +14158,13 @@ M:	Sean Wang <sean.wang@mediatek.com>
>   S:	Maintained
>   F:	drivers/char/hw_random/mtk-rng.c
>   
> +MEDIATEK ISP3.0 DRIVER
> +M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> +M:	Julien Stephan <jstephan@baylibre.com>
> +M:	Andy Hsieh <andy.hsieh@mediatek.com>
> +S:	Supported
> +F:	Documentation/devicetree/bindings/media/mediatek,mt8365-seninf.yaml
> +
>   MEDIATEK SMI DRIVER
>   M:	Yong Wu <yong.wu@mediatek.com>
>   L:	linux-mediatek@lists.infradead.org (moderated for non-subscribers)
>