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Message-ID: <99525d08-3263-d490-c962-1f5886a74e8b@gmail.com>
Date: Fri, 22 Apr 2022 15:33:57 +0200
From: Matthias Brugger <matthias.bgg@...il.com>
To: Moudy Ho <moudy.ho@...iatek.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Hans Verkuil <hverkuil-cisco@...all.nl>
Cc: Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Rob Landley <rob@...dley.net>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
linux-media@...r.kernel.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
Alexandre Courbot <acourbot@...omium.org>, tfiga@...omium.org,
drinkcat@...omium.org, pihsun@...omium.org, hsinyi@...gle.com,
Benjamin Gaignard <benjamin.gaignard@...labora.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
daoyuan huang <daoyuan.huang@...iatek.com>,
Ping-Hsun Wu <ping-hsun.wu@...iatek.com>,
allen-kh.cheng@...iatek.com, xiandong.wang@...iatek.com,
randy.wu@...iatek.com, jason-jh.lin@...iatek.com,
roy-cw.yeh@...iatek.com, river.cheng@...iatek.com,
srv_heupstream@...iatek.com,
Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v13 1/3] dt-binding: mt8183: add Mediatek MDP3 dt-bindings
On 18/04/2022 04:22, Moudy Ho wrote:
> This patch adds DT binding documents for Media Data Path 3 (MDP3)
> a unit in multimedia system combined with several components and
> used for scaling and color format convert.
>
> Signed-off-by: Moudy Ho <moudy.ho@...iatek.com>
> ---
> .../bindings/media/mediatek,mdp3-rdma.yaml | 166 ++++++++++++++++++
> .../bindings/media/mediatek,mdp3-rsz.yaml | 54 ++++++
> .../bindings/media/mediatek,mdp3-wrot.yaml | 57 ++++++
> .../bindings/soc/mediatek/mediatek,ccorr.yaml | 47 +++++
> .../bindings/soc/mediatek/mediatek,wdma.yaml | 58 ++++++
> 5 files changed, 382 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
> create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml
> create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml
> create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,ccorr.yaml
> create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml
>
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
> new file mode 100644
> index 000000000000..45b7c075ebf5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
> @@ -0,0 +1,166 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/mediatek,mdp3-rdma.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek Read Direct Memory Access
> +
> +maintainers:
> + - Matthias Brugger <matthias.bgg@...il.com>
Please add a maintainer that takes care of the driver bits. For example
"Ping-Hsun Wu <ping-hsun.wu@...iatek.com>" as mentioned in the driver.
That holds for the other yaml files as well.
Regards,
Matthias
> +
> +description: |
> + Mediatek Read Direct Memory Access(RDMA) component used to do read DMA.
> + It contains one line buffer to store the sufficient pixel data, and
> + must be siblings to the central MMSYS_CONFIG node.
> + For a description of the MMSYS_CONFIG binding, see
> + Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
> + for details.
> + The 1st RDMA is also used to be a controller node in Media Data Path 3(MDP3)
> + that containing MMSYS, MUTEX, GCE and SCP settings.
> +
> +properties:
> + compatible:
> + items:
> + # MDP3 controller node
> + - const: mediatek,mt8183-mdp3
> + - const: mediatek,mt8183-mdp3-rdma
> +
> + mediatek,scp:
> + description: |
> + The node of system control processor (SCP), using
> + the remoteproc & rpmsg framework.
> + $ref: '/schemas/types.yaml#/definitions/phandle'
> + maxItems: 1
> +
> + mediatek,mdp3-comps:
> + description: |
> + MDP subsystem which has direct-link from Image Signal Processor(ISP).
> + When using the camera, the DMA of ISP PASS (DIP) module will directly
> + trigger MDP3 without other control (such as V4L2 M2M) to create
> + corresponding HW path.
> + The MDP3 controller must set up a series of registers at the beginning of
> + path creation which covering MMSYS, IMGSYS, and MDP3's components,
> + so that data flow can pass through MDP3.
> + The entire path is briefly described as follows
> + ISP --+
> + |
> + +-> DIP --+
> + ................|..............................................
> + (MDP3) +->IMGI -+-> DL1 -> RSZ -+-> PATH1 -> WROT
> + | ^ |
> + | | |
> + +-> DL2 -----+ +-> PATH2 -> WDMA
> + |
> + +---------------------------> EXTO
> + $ref: '/schemas/types.yaml#/definitions/string-array'
> + items:
> + enum:
> + # MDP direct-link input path selection, create a
> + # component for path connectedness of HW pipe control
> + - mediatek,mt8183-mdp3-dl1
> + - mediatek,mt8183-mdp3-dl2
> + # MDP direct-link output path selection, create a
> + # component for path connectedness of HW pipe control
> + - mediatek,mt8183-mdp3-path1
> + - mediatek,mt8183-mdp3-path2
> + # Input DMA of ISP PASS2 (DIP) module for raw image input
> + - mediatek,mt8183-mdp3-imgi
> + # Output DMA of ISP PASS2 (DIP) module for YUV image output
> + - mediatek,mt8183-mdp3-exto
> +
> + reg:
> + items:
> + - description: basic RDMA HW address
> + - description: MDP direct-link 1st and 2nd input
> + - description: MDP direct-link 1st output
> + - description: MDP direct-link 2nd output
> + - description: ISP input and output
> +
> + mediatek,gce-client-reg:
> + $ref: '/schemas/types.yaml#/definitions/phandle-array'
> + minItems: 1
> + items:
> + - description: GCE client for RDMA
> + - description: GCE client for dl1 and dl2
> + - description: GCE client for path1
> + - description: GCE client for path2
> + - description: GCE client for imgi and exto
> + description: |
> + The register of client driver can be configured by gce with
> + 4 arguments defined in this property, such as phandle of gce, subsys id,
> + register offset and size. Each GCE subsys id is mapping to a client
> + defined in the header include/dt-bindings/gce/<chip>-gce.h.
> +
> + power-domains:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: RDMA clock
> + - description: RSZ clock
> + - description: direck-link TX clock in MDP side
> + - description: direck-link RX clock in MDP side
> + - description: direck-link TX clock in ISP side
> + - description: direck-link RX clock in ISP side
> +
> + iommus:
> + maxItems: 1
> +
> + mboxes:
> + items:
> + - description: used for 1st data pipe from RDMA
> + - description: used for 2nd data pipe from RDMA
> + - description: used for 3rd data pipe from Direct-Link
> + - description: used for 4th data pipe from Direct-Link
> +
> +required:
> + - compatible
> + - mediatek,scp
> + - reg
> + - clocks
> + - mediatek,gce-client-reg
> + - mboxes
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/mt8183-clk.h>
> + #include <dt-bindings/gce/mt8183-gce.h>
> + #include <dt-bindings/power/mt8183-power.h>
> + #include <dt-bindings/memory/mt8183-larb-port.h>
> +
> + mdp3_rdma0: mdp3_rdma0@...01000 {
> + compatible = "mediatek,mt8183-mdp3",
> + "mediatek,mt8183-mdp3-rdma";
> + mediatek,scp = <&scp>;
> + mediatek,mdp3-comps = "mediatek,mt8183-mdp3-dl1",
> + "mediatek,mt8183-mdp3-dl2",
> + "mediatek,mt8183-mdp3-path1",
> + "mediatek,mt8183-mdp3-path2",
> + "mediatek,mt8183-mdp3-imgi",
> + "mediatek,mt8183-mdp3-exto";
> + reg = <0x14001000 0x1000>,
> + <0x14000000 0x1000>,
> + <0x14005000 0x1000>,
> + <0x14006000 0x1000>,
> + <0x15020000 0x1000>;
> + mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x1000 0x1000>,
> + <&gce SUBSYS_1400XXXX 0 0x1000>,
> + <&gce SUBSYS_1400XXXX 0x5000 0x1000>,
> + <&gce SUBSYS_1400XXXX 0x6000 0x1000>,
> + <&gce SUBSYS_1502XXXX 0 0x1000>;
> + power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
> + clocks = <&mmsys CLK_MM_MDP_RDMA0>,
> + <&mmsys CLK_MM_MDP_RSZ1>,
> + <&mmsys CLK_MM_MDP_DL_TXCK>,
> + <&mmsys CLK_MM_MDP_DL_RX>,
> + <&mmsys CLK_MM_IPU_DL_TXCK>,
> + <&mmsys CLK_MM_IPU_DL_RX>;
> + iommus = <&iommu>;
> + mboxes = <&gce 20 CMDQ_THR_PRIO_LOWEST>,
> + <&gce 21 CMDQ_THR_PRIO_LOWEST>,
> + <&gce 22 CMDQ_THR_PRIO_LOWEST>,
> + <&gce 23 CMDQ_THR_PRIO_LOWEST>;
> + };
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml
> new file mode 100644
> index 000000000000..0dcb1a883a8e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml
> @@ -0,0 +1,54 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/mediatek,mdp3-rsz.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek Resizer
> +
> +maintainers:
> + - Matthias Brugger <matthias.bgg@...il.com>
> +
> +description: |
> + One of Media Data Path 3 (MDP3) components used to do frame resizing.
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - mediatek,mt8183-mdp3-rsz
> +
> + reg:
> + maxItems: 1
> +
> + mediatek,gce-client-reg:
> + description: The register of client driver can be configured by gce with
> + 4 arguments defined in this property, such as phandle of gce, subsys id,
> + register offset and size. Each GCE subsys id is mapping to a client
> + defined in the header include/dt-bindings/gce/<chip>-gce.h.
> + $ref: /schemas/types.yaml#/definitions/phandle-array
> + maxItems: 1
> +
> + clocks:
> + minItems: 1
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/mt8183-clk.h>
> + #include <dt-bindings/gce/mt8183-gce.h>
> +
> + mdp3_rsz0: mdp3_rsz0@...03000 {
> + compatible = "mediatek,mt8183-mdp3-rsz";
> + reg = <0x14003000 0x1000>;
> + mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x3000 0x1000>;
> + clocks = <&mmsys CLK_MM_MDP_RSZ0>;
> + };
> +
> + mdp3_rsz1: mdp3_rsz1@...04000 {
> + compatible = "mediatek,mt8183-mdp3-rsz";
> + reg = <0x14004000 0x1000>;
> + mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x4000 0x1000>;
> + clocks = <&mmsys CLK_MM_MDP_RSZ1>;
> + };
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml
> new file mode 100644
> index 000000000000..f2c38a9b187d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/mediatek,mdp3-wrot.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek Write DMA with Rotation
> +
> +maintainers:
> + - Matthias Brugger <matthias.bgg@...il.com>
> +
> +description: |
> + One of Media Data Path 3 (MDP3) components used to write DMA with frame rotation.
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - mediatek,mt8183-mdp3-wrot
> +
> + reg:
> + maxItems: 1
> +
> + mediatek,gce-client-reg:
> + description: The register of client driver can be configured by gce with
> + 4 arguments defined in this property, such as phandle of gce, subsys id,
> + register offset and size. Each GCE subsys id is mapping to a client
> + defined in the header include/dt-bindings/gce/<chip>-gce.h.
> + $ref: /schemas/types.yaml#/definitions/phandle-array
> + maxItems: 1
> +
> + power-domains:
> + maxItems: 1
> +
> + clocks:
> + minItems: 1
> +
> + iommus:
> + maxItems: 1
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/mt8183-clk.h>
> + #include <dt-bindings/gce/mt8183-gce.h>
> + #include <dt-bindings/power/mt8183-power.h>
> + #include <dt-bindings/memory/mt8183-larb-port.h>
> +
> + mdp3_wrot0: mdp3_wrot0@...05000 {
> + compatible = "mediatek,mt8183-mdp3-wrot";
> + reg = <0x14005000 0x1000>;
> + mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x5000 0x1000>;
> + power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
> + clocks = <&mmsys CLK_MM_MDP_WROT0>;
> + iommus = <&iommu>;
> + };
> diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,ccorr.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,ccorr.yaml
> new file mode 100644
> index 000000000000..cf23f4f5bd69
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,ccorr.yaml
> @@ -0,0 +1,47 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/mediatek/mediatek,ccorr.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek color correction
> +
> +maintainers:
> + - Matthias Brugger <matthias.bgg@...il.com>
> +
> +description: |
> + Mediatek color correction with 3X3 matrix.
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - mediatek,mt8183-mdp3-ccorr
> +
> + reg:
> + maxItems: 1
> +
> + mediatek,gce-client-reg:
> + description: The register of client driver can be configured by gce with
> + 4 arguments defined in this property, such as phandle of gce, subsys id,
> + register offset and size. Each GCE subsys id is mapping to a client
> + defined in the header include/dt-bindings/gce/<chip>-gce.h.
> + $ref: /schemas/types.yaml#/definitions/phandle-array
> + maxItems: 1
> +
> + clocks:
> + minItems: 1
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/mt8183-clk.h>
> + #include <dt-bindings/gce/mt8183-gce.h>
> +
> + mdp3_ccorr: mdp3_ccorr@...1c000 {
> + compatible = "mediatek,mt8183-mdp3-ccorr";
> + reg = <0x1401c000 0x1000>;
> + mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0xc000 0x1000>;
> + clocks = <&mmsys CLK_MM_MDP_CCORR>;
> + };
> diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml
> new file mode 100644
> index 000000000000..4057b5232e45
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml
> @@ -0,0 +1,58 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/mediatek/mediatek,wdma.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek Write Direct Memory Access
> +
> +maintainers:
> + - Matthias Brugger <matthias.bgg@...il.com>
> +
> +description: |
> + Mediatek Write Direct Memory Access(WDMA) component used to write
> + the data into DMA.
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - mediatek,mt8183-mdp3-wdma
> +
> + reg:
> + maxItems: 1
> +
> + mediatek,gce-client-reg:
> + description: The register of client driver can be configured by gce with
> + 4 arguments defined in this property, such as phandle of gce, subsys id,
> + register offset and size. Each GCE subsys id is mapping to a client
> + defined in the header include/dt-bindings/gce/<chip>-gce.h.
> + $ref: /schemas/types.yaml#/definitions/phandle-array
> + maxItems: 1
> +
> + power-domains:
> + maxItems: 1
> +
> + clocks:
> + minItems: 1
> +
> + iommus:
> + maxItems: 1
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/mt8183-clk.h>
> + #include <dt-bindings/gce/mt8183-gce.h>
> + #include <dt-bindings/power/mt8183-power.h>
> + #include <dt-bindings/memory/mt8183-larb-port.h>
> +
> + mdp3_wdma: mdp3_wdma@...06000 {
> + compatible = "mediatek,mt8183-mdp3-wdma";
> + reg = <0x14006000 0x1000>;
> + mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x6000 0x1000>;
> + power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
> + clocks = <&mmsys CLK_MM_MDP_WDMA0>;
> + iommus = <&iommu>;
> + };
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