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From:   Moudy Ho <moudy.ho@mediatek.com>
To:     Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
        Hans Verkuil <hverkuil-cisco@xs4all.nl>
CC:     Chun-Kuang Hu <chunkuang.hu@kernel.org>,
        Rob Landley <rob@landley.net>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        <linux-media@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        Alexandre Courbot <acourbot@chromium.org>,
        <tfiga@chromium.org>, <drinkcat@chromium.org>,
        <pihsun@chromium.org>, <hsinyi@google.com>,
        Benjamin Gaignard <benjamin.gaignard@collabora.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        <Project_Global_Chrome_Upstream_Group@mediatek.com>,
        <cellopoint.kai@gmail.com>, Moudy Ho <moudy.ho@mediatek.com>
Subject: [PATCH v27 1/4] dt-binding: mediatek: add bindings for MediaTek MDP3 components
Date:   Mon, 22 Aug 2022 11:24:58 +0800
Message-ID: <20220822032501.15418-2-moudy.ho@mediatek.com>
In-Reply-To: <20220822032501.15418-1-moudy.ho@mediatek.com>
References: <20220822032501.15418-1-moudy.ho@mediatek.com>
MIME-Version: 1.0
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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@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 .../bindings/media/mediatek,mdp3-rdma.yaml    | 95 +++++++++++++++++++
 .../bindings/media/mediatek,mdp3-rsz.yaml     | 77 +++++++++++++++
 .../bindings/media/mediatek,mdp3-wrot.yaml    | 80 ++++++++++++++++
 3 files changed, 252 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

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..94ff74d9c04a
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
@@ -0,0 +1,95 @@
+# 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@gmail.com>
+  - Ping-Hsun Wu <ping-hsun.wu@mediatek.com>
+
+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.
+
+properties:
+  compatible:
+    items:
+      - const: mediatek,mt8183-mdp3-rdma
+
+  reg:
+    maxItems: 1
+
+  mediatek,gce-client-reg:
+    $ref: '/schemas/types.yaml#/definitions/phandle-array'
+    items:
+      items:
+        - description: phandle of GCE
+        - description: GCE subsys id
+        - description: register offset
+        - description: register size
+    description: The register of client driver can be configured by gce with
+      4 arguments defined in this property. Each GCE subsys id is mapping to
+      a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
+
+  mediatek,gce-events:
+    description:
+      The event id which is mapping to the specific hardware event signal
+      to gce. The event id is defined in the gce header
+      include/dt-bindings/gce/<chip>-gce.h of each chips.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: RDMA clock
+      - description: RSZ clock
+
+  iommus:
+    maxItems: 1
+
+  mboxes:
+    items:
+      - description: used for 1st data pipe from RDMA
+      - description: used for 2nd data pipe from RDMA
+
+required:
+  - compatible
+  - reg
+  - mediatek,gce-client-reg
+  - mediatek,gce-events
+  - power-domains
+  - clocks
+  - iommus
+  - mboxes
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8183-clk.h>
+    #include <dt-bindings/gce/mt8183-gce.h>
+    #include <dt-bindings/power/mt8183-power.h>
+    #include <dt-bindings/memory/mt8183-larb-port.h>
+
+    mdp3_rdma0: mdp3-rdma0@14001000 {
+      compatible = "mediatek,mt8183-mdp3-rdma";
+      reg = <0x14001000 0x1000>;
+      mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x1000 0x1000>;
+      mediatek,gce-events = <CMDQ_EVENT_MDP_RDMA0_SOF>,
+                            <CMDQ_EVENT_MDP_RDMA0_EOF>;
+      power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
+      clocks = <&mmsys CLK_MM_MDP_RDMA0>,
+               <&mmsys CLK_MM_MDP_RSZ1>;
+      iommus = <&iommu>;
+      mboxes = <&gce 20 CMDQ_THR_PRIO_LOWEST>,
+               <&gce 21 CMDQ_THR_PRIO_LOWEST>;
+    };
diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml
new file mode 100644
index 000000000000..22c61ed00fdd
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$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@gmail.com>
+  - Ping-Hsun Wu <ping-hsun.wu@mediatek.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:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      items:
+        - description: phandle of GCE
+        - description: GCE subsys id
+        - description: register offset
+        - description: register size
+    description: The register of client driver can be configured by gce with
+      4 arguments defined in this property. Each GCE subsys id is mapping to
+      a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
+
+  mediatek,gce-events:
+    description:
+      The event id which is mapping to the specific hardware event signal
+      to gce. The event id is defined in the gce header
+      include/dt-bindings/gce/<chip>-gce.h of each chips.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  clocks:
+    minItems: 1
+
+required:
+  - compatible
+  - reg
+  - mediatek,gce-client-reg
+  - mediatek,gce-events
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8183-clk.h>
+    #include <dt-bindings/gce/mt8183-gce.h>
+
+    mdp3_rsz0: mdp3-rsz0@14003000 {
+      compatible = "mediatek,mt8183-mdp3-rsz";
+      reg = <0x14003000 0x1000>;
+      mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x3000 0x1000>;
+      mediatek,gce-events = <CMDQ_EVENT_MDP_RSZ0_SOF>,
+                            <CMDQ_EVENT_MDP_RSZ0_EOF>;
+      clocks = <&mmsys CLK_MM_MDP_RSZ0>;
+    };
+
+    mdp3_rsz1: mdp3-rsz1@14004000 {
+      compatible = "mediatek,mt8183-mdp3-rsz";
+      reg = <0x14004000 0x1000>;
+      mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x4000 0x1000>;
+      mediatek,gce-events = <CMDQ_EVENT_MDP_RSZ1_SOF>,
+                            <CMDQ_EVENT_MDP_RSZ1_EOF>;
+      clocks = <&mmsys CLK_MM_MDP_RSZ1>;
+    };
diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml
new file mode 100644
index 000000000000..76c010720d43
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$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@gmail.com>
+  - Ping-Hsun Wu <ping-hsun.wu@mediatek.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:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      items:
+        - description: phandle of GCE
+        - description: GCE subsys id
+        - description: register offset
+        - description: register size
+    description: The register of client driver can be configured by gce with
+      4 arguments defined in this property. Each GCE subsys id is mapping to
+      a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
+
+  mediatek,gce-events:
+    description:
+      The event id which is mapping to the specific hardware event signal
+      to gce. The event id is defined in the gce header
+      include/dt-bindings/gce/<chip>-gce.h of each chips.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+
+  iommus:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - mediatek,gce-client-reg
+  - mediatek,gce-events
+  - power-domains
+  - clocks
+  - iommus
+
+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@14005000 {
+      compatible = "mediatek,mt8183-mdp3-wrot";
+      reg = <0x14005000 0x1000>;
+      mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x5000 0x1000>;
+      mediatek,gce-events = <CMDQ_EVENT_MDP_WROT0_SOF>,
+                            <CMDQ_EVENT_MDP_WROT0_EOF>;
+      power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
+      clocks = <&mmsys CLK_MM_MDP_WROT0>;
+      iommus = <&iommu>;
+    };
-- 
2.18.0