linux-kernel - [PATCH v6 1/5] dt-bindings: media: Add Allwinner A10 CSI binding

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Date:   Thu, 11 Jul 2019 14:15:03 +0200
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>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v6 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.

Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@...tlin.com>
---
 Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 94 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..97c9fc3b5050
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
@@ -0,0 +1,94 @@
+# 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>
+
+description: |-
+  The Allwinner A10 and later has a CMOS Sensor Interface to retrieve
+  frames from a parallel or BT656 sensor.
+
+
+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:
+    type: object
+    additionalProperties: false
+
+    properties:
+      endpoint:
+        properties:
+          bus-width:
+            const: 8
+            description: Number of data lines actively used.
+
+          data-active: true
+          hsync-active: true
+          pclk-sample: true
+          remote-endpoint: true
+          vsync-active: true
+
+        required:
+          - bus-width
+          - data-active
+          - hsync-active
+          - pclk-sample
+          - remote-endpoint
+          - vsync-active
+
+    required:
+      - endpoint
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+...
-- 
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