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Date: Fri, 7 Apr 2023 14:20:59 +0800
From: Jack Zhu <jack.zhu@...rfivetech.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>
CC: Mauro Carvalho Chehab <mchehab@...nel.org>,
Maxime Ripard <mripard@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Robert Foss <rfoss@...nel.org>,
"Todor Tomov" <todor.too@...il.com>,
Philipp Zabel <p.zabel@...gutronix.de>,
"Ezequiel Garcia" <ezequiel@...guardiasur.com.ar>,
Hans Verkuil <hverkuil-cisco@...all.nl>,
Eugen Hristev <eugen.hristev@...labora.com>,
<linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <changhuang.liang@...rfivetech.com>
Subject: Re: [PATCH v3 1/9] media: dt-bindings: Add bindings for JH7110 Camera
Subsystem
On 2023/4/4 12:39, Laurent Pinchart wrote:
> Hi Jack,
>
> Thank you for the patch.
>
> On Fri, Mar 31, 2023 at 08:18:18PM +0800, Jack Zhu wrote:
>> Add the bindings documentation for Starfive JH7110 Camera Subsystem
>> which is used for handing image sensor data.
>>
>> Signed-off-by: Jack Zhu <jack.zhu@...rfivetech.com>
>> ---
>> .../bindings/media/starfive,jh7110-camss.yaml | 159 ++++++++++++++++++
>> MAINTAINERS | 7 +
>> 2 files changed, 166 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> new file mode 100644
>> index 000000000000..0235c70e7793
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> @@ -0,0 +1,159 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/media/starfive,jh7110-camss.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Starfive SoC CAMSS ISP
>> +
>> +maintainers:
>> + - Jack Zhu <jack.zhu@...rfivetech.com>
>> + - Changhuang Liang <changhuang.liang@...rfivetech.com>
>> +
>> +description:
>> + The Starfive CAMSS ISP is a Camera interface for Starfive JH7110 SoC. It
>> + consists of a VIN controller (Video In Controller, a top-level control until)
>> + and an ISP.
>> +
>> +properties:
>> + compatible:
>> + const: starfive,jh7110-camss
>> +
>> + reg:
>> + maxItems: 2
>> +
>> + reg-names:
>> + items:
>> + - const: syscon
>> + - const: isp
>> +
>> + clocks:
>> + maxItems: 7
>> +
>> + clock-names:
>> + items:
>> + - const: apb_func
>> + - const: wrapper_clk_c
>> + - const: dvp_inv
>> + - const: axiwr
>> + - const: mipi_rx0_pxl
>> + - const: ispcore_2x
>> + - const: isp_axi
>> +
>> + resets:
>> + maxItems: 6
>> +
>> + reset-names:
>> + items:
>> + - const: wrapper_p
>> + - const: wrapper_c
>> + - const: axird
>> + - const: axiwr
>> + - const: isp_top_n
>> + - const: isp_top_axi
>> +
>> + power-domains:
>> + items:
>> + - description: JH7110 ISP Power Domain Switch Controller.
>> +
>> + interrupts:
>> + maxItems: 4
>> +
>> + ports:
>> + $ref: /schemas/graph.yaml#/properties/ports
>> +
>> + properties:
>> + port@0:
>> + $ref: /schemas/graph.yaml#/properties/port
>> + unevaluatedProperties: false
>> + description:
>> + Input port for receiving DVP data.
>> +
>> + properties:
>> + endpoint:
>> + $ref: video-interfaces.yaml#
>> + unevaluatedProperties: false
>> +
>> + port@1:
>> + $ref: /schemas/graph.yaml#/properties/port
>> + unevaluatedProperties: false
>> + description:
>> + Input port for receiving CSI data.
>> +
>> + properties:
>> + endpoint:
>> + $ref: video-interfaces.yaml#
>> + unevaluatedProperties: false
>> +
>> + required:
>> + - port@1
>
> Both ports should be required. It's fine to have unconnected ports (that
> is, without any endpoint child node), but the ports should always be
> present if they exist in the hardware.
>
Thank you for your comments.
OK, I will add port@0.
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - reg-names
>> + - clocks
>> + - clock-names
>> + - resets
>> + - reset-names
>> + - power-domains
>> + - interrupts
>> + - ports
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + isp@...40000 {
>> + compatible = "starfive,jh7110-camss";
>> + reg = <0x19840000 0x10000>,
>> + <0x19870000 0x30000>;
>> + reg-names = "syscon", "isp";
>> + clocks = <&ispcrg 0>,
>> + <&ispcrg 13>,
>> + <&ispcrg 2>,
>> + <&ispcrg 12>,
>> + <&ispcrg 1>,
>> + <&syscrg 51>,
>> + <&syscrg 52>;
>> + clock-names = "apb_func",
>> + "wrapper_clk_c",
>> + "dvp_inv",
>> + "axiwr",
>> + "mipi_rx0_pxl",
>> + "ispcore_2x",
>> + "isp_axi";
>> + resets = <&ispcrg 0>,
>> + <&ispcrg 1>,
>> + <&ispcrg 10>,
>> + <&ispcrg 11>,
>> + <&syscrg 41>,
>> + <&syscrg 42>;
>> + reset-names = "wrapper_p",
>> + "wrapper_c",
>> + "axird",
>> + "axiwr",
>> + "isp_top_n",
>> + "isp_top_axi";
>> + power-domains = <&pwrc 5>;
>> + interrupts = <92>, <87>, <88>, <90>;
>> +
>> + ports {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + port@0 {
>> + reg = <0>;
>> + vin_from_sc2235: endpoint {
>> + remote-endpoint = <&sc2235_to_vin>;
>> + };
>> + };
>> +
>> + port@1 {
>> + reg = <1>;
>> + vin_from_csi2rx: endpoint {
>> + remote-endpoint = <&csi2rx_to_vin>;
>> + };
>> + };
>> + };
>> + };
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index b6c811326355..f7165371c56d 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -19908,6 +19908,13 @@ M: Ion Badulescu <ionut@...ula.org>
>> S: Odd Fixes
>> F: drivers/net/ethernet/adaptec/starfire*
>>
>> +STARFIVE CAMERA SUBSYSTEM DRIVER
>> +M: Jack Zhu <jack.zhu@...rfivetech.com>
>> +M: Changhuang Liang <changhuang.liang@...rfivetech.com>
>> +L: linux-media@...r.kernel.org
>> +S: Maintained
>> +F: Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> +
>> STARFIVE DEVICETREES
>> M: Emil Renner Berthing <kernel@...il.dk>
>> S: Maintained
>
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