linux-kernel - [PATCH v3 1/5] dt-bindings: media: Add Allwinner A10 CSI binding

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Date:   Thu, 14 Mar 2019 22:17:45 +0100
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Hans Verkuil <hans.verkuil@...co.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-media@...r.kernel.org, Chen-Yu Tsai <wens@...e.org>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>
Subject: [PATCH v3 1/5] dt-bindings: media: Add Allwinner A10 CSI binding

The Allwinner A10 CMOS Sensor Interface is a camera capture interface also
used in later (A10s, A13, A20, R8 and GR8) SoCs.

On some SoCs, like the A10, there's multiple instances of that controller,
with one instance supporting more channels and having an ISP.

Signed-off-by: Maxime Ripard <maxime.ripard@...tlin.com>
---
 Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 115 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml

diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
new file mode 100644
index 000000000000..30c5dc1406cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/allwinner,sun4i-a10-csi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 CMOS Sensor Interface (CSI) Device Tree Bindings
+
+maintainers:
+  - Chen-Yu Tsai <wens@...e.org>
+  - Maxime Ripard <maxime.ripard@...tlin.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+        - enum:
+          - allwinner,sun7i-a20-csi0
+        - const: allwinner,sun4i-a10-csi0
+
+      - items:
+        - const: allwinner,sun4i-a10-csi0
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: The CSI interface clock
+      - description: The CSI module clock
+      - description: The CSI ISP clock
+      - description: The CSI DRAM clock
+
+  clock-names:
+    items:
+      - const: bus
+      - const: mod
+      - const: isp
+      - const: ram
+
+  resets:
+    description: The reset line driver this IP
+    maxItems: 1
+
+  pinctrl-0:
+    minItems: 1
+
+  pinctrl-names:
+    const: default
+
+  port:
+    additionalProperties: false
+
+    properties:
+      endpoint:
+        properties:
+          bus-width:
+            const: 8
+            description:
+              Number of data lines actively used.
+
+          data-active:
+            description: Polarity of the data lines, 0 for active low,
+              1 for active high.
+            allOf:
+              - $ref: /schemas/types.yaml#/definitions/uint32
+              - enum: [0, 1]
+
+          hsync-active:
+            description: Active state of the HSYNC signal, 0 for
+              active low, 1 for active high.
+            allOf:
+              - $ref: /schemas/types.yaml#/definitions/uint32
+              - enum: [0, 1]
+
+          pclk-sample:
+            description: Sample data on the rising (1) or falling (0)
+              edge of the pixel clock signal
+            allOf:
+              - $ref: /schemas/types.yaml#/definitions/uint32
+              - enum: [0, 1]
+
+          remote-endpoint:
+            $ref: '/schemas/types.yaml#/definitions/phandle'
+            description: Phandle to an endpoint subnode of a remote
+              device node.
+
+          vsync-active:
+            description: Active state of the VSYNC signal, 0 for
+              active low, 1 for active high.
+            allOf:
+              - $ref: /schemas/types.yaml#/definitions/uint32
+              - enum: [0, 1]
+
+        required:
+          - bus-width
+          - data-active
+          - hsync-active
+          - pclk-sample
+          - remote-endpoint
+          - vsync-active
+
+    required:
+      - endpoint
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
-- 
git-series 0.9.1