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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 v26 2/4] dt-binding: mediatek: add bindings for MediaTek CCORR and WDMA
Date:   Fri, 19 Aug 2022 16:54:21 +0800
Message-ID: <20220819085423.17023-3-moudy.ho@mediatek.com>
In-Reply-To: <20220819085423.17023-1-moudy.ho@mediatek.com>
References: <20220819085423.17023-1-moudy.ho@mediatek.com>
MIME-Version: 1.0
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Precedence: bulk

This patch adds DT binding documentation for MediaTek's CCORR and
WDMA components.
These components exist in both MediaTek's Media Data Path 3(MDP3) and DRM,
and the bindings are placed under the folder "./soc/mediatek" to prevent
duplicate builds.

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/soc/mediatek/mediatek,ccorr.yaml | 68 ++++++++++++++++
 .../bindings/soc/mediatek/mediatek,wdma.yaml  | 81 +++++++++++++++++++
 2 files changed, 149 insertions(+)
 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/soc/mediatek/mediatek,ccorr.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,ccorr.yaml
new file mode 100644
index 000000000000..10786d769750
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,ccorr.yaml
@@ -0,0 +1,68 @@
+# 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@gmail.com>
+  - Ping-Hsun Wu <ping-hsun.wu@mediatek.com>
+
+description: |
+  MediaTek color correction with 3X3 matrix.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - mediatek,mt8183-mdp3-ccorr
+
+  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.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  clocks:
+    minItems: 1
+
+required:
+  - compatible
+  - reg
+  - mediatek,gce-client-reg
+  - mediatek,gce-events
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8183-clk.h>
+    #include <dt-bindings/gce/mt8183-gce.h>
+
+    mdp3_ccorr: mdp3-ccorr@1401c000 {
+      compatible = "mediatek,mt8183-mdp3-ccorr";
+      reg = <0x1401c000 0x1000>;
+      mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0xc000 0x1000>;
+      mediatek,gce-events = <CMDQ_EVENT_MDP_CCORR_SOF>,
+                            <CMDQ_EVENT_MDP_CCORR_EOF>;
+      clocks = <&mmsys CLK_MM_MDP_CCORR>;
+    };
diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml
new file mode 100644
index 000000000000..95ec19543945
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$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@gmail.com>
+  - Ping-Hsun Wu <ping-hsun.wu@mediatek.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:
+    $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_wdma: mdp3-wdma@14006000 {
+      compatible = "mediatek,mt8183-mdp3-wdma";
+      reg = <0x14006000 0x1000>;
+      mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x6000 0x1000>;
+      mediatek,gce-events = <CMDQ_EVENT_MDP_WDMA0_SOF>,
+                            <CMDQ_EVENT_MDP_WDMA0_EOF>;
+      power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
+      clocks = <&mmsys CLK_MM_MDP_WDMA0>;
+      iommus = <&iommu>;
+    };
-- 
2.18.0