linux-kernel - Re: [PATCH v3 06/12] dt-bindings: Document the Rockchip ISP1 bindings

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Date:   Thu, 7 Dec 2017 17:20:33 -0600
From:   Rob Herring <robh@...nel.org>
To:     Jacob Chen <jacob-chen@...wrt.com>
Cc:     linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, mchehab@...nel.org,
        linux-media@...r.kernel.org, sakari.ailus@...ux.intel.com,
        hans.verkuil@...co.com, tfiga@...omium.org, zhengsq@...k-chips.com,
        laurent.pinchart@...asonboard.com, zyc@...k-chips.com,
        eddie.cai.linux@...il.com, jeffy.chen@...k-chips.com,
        allon.huang@...k-chips.com, devicetree@...r.kernel.org,
        heiko@...ech.de, Joao.Pinto@...opsys.com,
        Luis.Oliveira@...opsys.com, Jose.Abreu@...opsys.com,
        Jacob Chen <jacob2.chen@...k-chips.com>
Subject: Re: [PATCH v3 06/12] dt-bindings: Document the Rockchip ISP1 bindings

On Wed, Dec 06, 2017 at 07:19:33PM +0800, Jacob Chen wrote:
> From: Jacob Chen <jacob2.chen@...k-chips.com>
> 
> Add DT bindings documentation for Rockchip ISP1
> 
> Signed-off-by: Jacob Chen <jacob2.chen@...k-chips.com>
> ---
>  .../devicetree/bindings/media/rockchip-isp1.txt    | 57 ++++++++++++++++++++++
>  1 file changed, 57 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/rockchip-isp1.txt
> 
> diff --git a/Documentation/devicetree/bindings/media/rockchip-isp1.txt b/Documentation/devicetree/bindings/media/rockchip-isp1.txt
> new file mode 100644
> index 000000000000..0971ed94ed69
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/rockchip-isp1.txt
> @@ -0,0 +1,57 @@
> +Rockchip SoC Image Signal Processing unit v1
> +----------------------------------------------
> +
> +Rockchip ISP1 is the Camera interface for the Rockchip series of SoCs
> +which contains image processing, scaling, and compression funcitons.
> +
> +Required properties:
> +  - compatible: value should be one of the following
> +      "rockchip,rk3288-cif-isp";
> +      "rockchip,rk3399-cif-isp";
> +  - reg : offset and length of the register set for the device.
> +  - interrupts: should contain ISP interrupt.
> +  - clocks: phandle to the required clocks.
> +  - clock-names: required clock name.
> +  - iommus: required a iommu node.
> +
> +The device node should contain one 'port' child node with child 'endpoint'
> +nodes, according to the bindings defined in Documentation/devicetree/bindings/
> +media/video-interfaces.txt.
> +
> +For sensor with a parallel video bus, it could be linked directly to the isp.
> +For sensor with a MIPI CSI-2 video bus, it should be linked through the
> +MIPI-DPHY, which is defined in rockchip-mipi-dphy.txt.

As I mentioned on the last version, you need to list that there are 2 
endpoints for the port and what their assignment is.

Rob