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From:   Benoit Parrot <bparrot@ti.com>
To:     Hans Verkuil <hverkuil@xs4all.nl>, Rob Herring <robh+dt@kernel.org>
CC:     <linux-media@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, Benoit Parrot <bparrot@ti.com>
Subject: [Patch 1/2] dt-binbings: media: ti-vpe: Document the VIP driver
Date:   Fri, 22 May 2020 17:54:11 -0500
Message-ID: <20200522225412.29440-2-bparrot@ti.com>
In-Reply-To: <20200522225412.29440-1-bparrot@ti.com>
References: <20200522225412.29440-1-bparrot@ti.com>
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Device Tree bindings for the Video Input Port (VIP) driver.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
---
 .../devicetree/bindings/media/ti,vip.yaml     | 394 ++++++++++++++++++
 MAINTAINERS                                   |   1 +
 2 files changed, 395 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/ti,vip.yaml

diff --git a/Documentation/devicetree/bindings/media/ti,vip.yaml b/Documentation/devicetree/bindings/media/ti,vip.yaml
new file mode 100644
index 000000000000..8a9084e42329
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/ti,vip.yaml
@@ -0,0 +1,394 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/ti,vip.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments DRA7x VIDEO INPUT PORT (VIP) Device Tree Bindings
+
+maintainers:
+  - Benoit Parrot <bparrot@ti.com>
+
+description: |-
+  The Video Input Port (VIP) is a key component for image capture
+  applications. The capture module provides the system interface and the
+  processing capability to connect parallel image-sensor as well as
+  BT.656/1120 capable encoder chip to DRA7x device.
+
+  Each VIP instance supports 2 independently configurable external video
+  input capture slices (Slice 0 and Slice 1) each providing up to two video
+  input ports (Port A and Port B) where Port A can be configured as
+  24/16/8-bit port and Port B is fixed as 8-bit port.
+  Here these ports a represented as follows
+    port@0 -> Slice 0 Port A
+    port@1 -> Slice 0 Port B
+    port@2 -> Slice 1 Port A
+    port@3 -> Slice 1 Port B
+
+  Each camera port nodes should contain a 'port' child node with child
+  'endpoint' node. Please refer to the bindings defined in
+  Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+properties:
+  compatible:
+    const: ti,dra7-vip
+
+  label:
+    description: Instance name
+
+  reg:
+    items:
+      - description: The VIP main register region
+      - description: Video Data Parser (PARSER) register region for Slice0
+      - description: Color Space Conversion (CSC) register region for Slice0
+      - description: Scaler (SC) register region for Slice0
+      - description: Video Data Parser (PARSER) register region for Slice1
+      - description: Color Space Conversion (CSC) register region for Slice1
+      - description: Scaler (SC) register region for Slice1
+      - description: Video Port Direct Memory Access (VPDMA) register region
+
+  reg-names:
+    items:
+      - const: vip
+      - const: parser0
+      - const: csc0
+      - const: sc0
+      - const: parser1
+      - const: csc1
+      - const: sc1
+      - const: vpdma
+
+  interrupts:
+    minItems: 2
+    description:
+      IRQ index 0 is used for Slice0 interrupts
+      IRQ index 1 is used for Slice1 interrupts
+
+  ti,vip-clk-polarity:
+    $ref: "/schemas/types.yaml#/definitions/phandle-array"
+    description:
+      phandle to the device control module. The 1st argument should
+      contain the register offset to the CTRL_CORE_SMA_SW_1 register.
+      2nd argument contains the bit field to slice 0 port A,
+      3rd argument contains the bit field to slice 0 port B,
+      4th argument contains the bit field to slice 1 port A,
+      5th argument contains the bit field to slice 1 port B.
+
+  # See ./video-interfaces.txt for details
+  ports:
+    type: object
+    additionalProperties: false
+
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+      port@0:
+        type: object
+        additionalProperties: false
+
+        properties:
+          reg:
+            const: 0
+            description: Slice 0 Port A
+
+          label:
+            description: Port name. Usually the pin group name
+
+        patternProperties:
+          endpoint:
+            type: object
+            additionalProperties: false
+
+            properties:
+              hsync-active:
+                maxItems: 1
+
+              vsync-active:
+                maxItems: 1
+
+              pclk-sample:
+                maxItems: 1
+
+              bus-width:
+                maxItems: 1
+
+              ti,vip-pixel-mux:
+                type: boolean
+                description:
+                  In BT656/1120 mode, this enable pixel-muxing if
+                  the number of channels is either 1, 2 or 4. If this
+                  property is present then pixel-muxing is enabled
+                  otherwise it will use line-muxing.
+
+              ti,vip-channels:
+                $ref: "/schemas/types.yaml#definitions/uint8-array"
+                minItems: 1
+                maxItems: 16
+                description: |-
+                  In BT656/1120 mode, list of channel ids to be captured.
+                  If the property is not present then 1 channel is assumed.
+
+              remote-endpoint: true
+
+        required:
+          - reg
+          - label
+
+      port@1:
+        type: object
+        additionalProperties: false
+
+        properties:
+          reg:
+            const: 1
+            description: Slice 0 Port B
+
+          label:
+            description: Port name. Usually the pin group name
+
+        patternProperties:
+          endpoint:
+            type: object
+            additionalProperties: false
+
+            properties:
+              hsync-active:
+                maxItems: 1
+
+              vsync-active:
+                maxItems: 1
+
+              pclk-sample:
+                maxItems: 1
+
+              bus-width:
+                maxItems: 1
+
+              ti,vip-pixel-mux:
+                type: boolean
+                description:
+                  In BT656/1120 mode, this enable pixel-muxing if
+                  the number of channels is either 1, 2 or 4. If this
+                  property is present then pixel-muxing is enabled
+                  otherwise it will use line-muxing.
+
+              ti,vip-channels:
+                $ref: "/schemas/types.yaml#definitions/uint8-array"
+                minItems: 1
+                maxItems: 16
+                description:
+                  In BT656/1120 mode, list of channel ids to be captured.
+                  If the property is not present then 1 channel is assumed.
+
+              remote-endpoint: true
+
+        required:
+          - reg
+          - label
+
+      port@2:
+        type: object
+        additionalProperties: false
+
+        properties:
+          reg:
+            const: 2
+            description: Slice 1 Port A
+
+          label:
+            description: Port name. Usually the pin group name
+
+        patternProperties:
+          endpoint:
+            type: object
+            additionalProperties: false
+
+            properties:
+              hsync-active:
+                maxItems: 1
+
+              vsync-active:
+                maxItems: 1
+
+              pclk-sample:
+                maxItems: 1
+
+              bus-width:
+                maxItems: 1
+
+              ti,vip-pixel-mux:
+                type: boolean
+                description:
+                  In BT656/1120 mode, this enable pixel-muxing if
+                  the number of channels is either 1, 2 or 4. If this
+                  property is present then pixel-muxing is enabled
+                  otherwise it will use line-muxing.
+
+              ti,vip-channels:
+                $ref: "/schemas/types.yaml#definitions/uint8-array"
+                minItems: 1
+                maxItems: 16
+                description:
+                  In BT656/1120 mode, list of channel ids to be captured.
+                  If the property is not present then 1 channel is assumed.
+
+              remote-endpoint: true
+
+        required:
+          - reg
+          - label
+
+      port@3:
+        type: object
+        additionalProperties: false
+
+        properties:
+          reg:
+            const: 3
+            description: Slice 1 Port B
+
+          label:
+            description: Port name. Usually the pin group name
+
+        patternProperties:
+          endpoint:
+            type: object
+            additionalProperties: false
+
+            properties:
+              hsync-active:
+                maxItems: 1
+
+              vsync-active:
+                maxItems: 1
+
+              pclk-sample:
+                maxItems: 1
+
+              bus-width:
+                maxItems: 1
+
+              ti,vip-pixel-mux:
+                type: boolean
+                description:
+                  In BT656/1120 mode, this enable pixel-muxing if
+                  the number of channels is either 1, 2 or 4. If this
+                  property is present then pixel-muxing is enabled
+                  otherwise it will use line-muxing.
+
+              ti,vip-channels:
+                $ref: "/schemas/types.yaml#definitions/uint8-array"
+                minItems: 1
+                maxItems: 16
+                description:
+                  In BT656/1120 mode, list of channel ids to be captured.
+                  If the property is not present then 1 channel is assumed.
+
+              remote-endpoint: true
+
+        required:
+          - reg
+          - label
+
+    required:
+      - "#address-cells"
+      - "#size-cells"
+      - port@0
+
+required:
+  - compatible
+  - label
+  - reg
+  - reg-names
+  - interrupts
+  - ti,vip-clk-polarity
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    vip1: vip@48970000 {
+        compatible = "ti,dra7-vip";
+        label = "vip1";
+        reg = <0x48970000 0x114>,
+              <0x48975500 0xD8>,
+              <0x48975700 0x18>,
+              <0x48975800 0x80>,
+              <0x48975a00 0xD8>,
+              <0x48975c00 0x18>,
+              <0x48975d00 0x80>,
+              <0x4897d000 0x400>;
+        reg-names = "vip",
+                    "parser0",
+                    "csc0",
+                    "sc0",
+                    "parser1",
+                    "csc1",
+                    "sc1",
+                    "vpdma";
+        interrupts = <GIC_SPI 351 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 392 IRQ_TYPE_LEVEL_HIGH>;
+        ti,vip-clk-polarity = <&scm_conf 0x534 0x1 0x4 0x2 0x8>;
+
+        ports {
+              #address-cells = <1>;
+              #size-cells = <0>;
+
+              vin1a: port@0 {
+                    reg = <0>;
+                    label = "vin1a";
+
+                    vin1a_ep: endpoint {
+                           remote-endpoint = <&camera1>;
+                           hsync-active = <1>;
+                           vsync-active = <1>;
+                           pclk-sample = <0>;
+                           bus-width = <8>;
+                    };
+              };
+              vin1b: port@1 {
+                    reg = <1>;
+                    label = "vin1b";
+              };
+              vin2a: port@2 {
+                    reg = <2>;
+                    label = "vin2a";
+              };
+              vin2b: port@3 {
+                    reg = <3>;
+                    label = "vin2b";
+              };
+         };
+    };
+
+    i2c {
+        clock-frequency = <400000>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+         camera@37 {
+              compatible = "ovti,ov10633";
+              reg = <0x37>;
+
+              clocks = <&fixed_clock>;
+              clocks-names = "xvclk";
+
+              port {
+                   camera1: endpoint {
+                           remote-endpoint = <&vin1a_ep>;
+                           hsync-active = <1>;
+                           vsync-active = <1>;
+                           pclk-sample = <0>;
+                           bus-width = <8>;
+                   };
+              };
+         };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 2e9a5f6e4ff7..06856d05b53b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16947,6 +16947,7 @@ S:	Maintained
 W:	http://linuxtv.org/
 Q:	http://patchwork.linuxtv.org/project/linux-media/list/
 F:	Documentation/devicetree/bindings/media/ti,cal.yaml
+F:	Documentation/devicetree/bindings/media/ti,vip.yaml
 F:	Documentation/devicetree/bindings/media/ti,vpe.yaml
 F:	drivers/media/platform/ti-vpe/
 
-- 
2.17.1