[PATCH 6/8] media: dt-bindings: Add bindings for Raspberry Pi PiSP Back End

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Add bindings for the Raspberry Pi PiSP Back End memory-to-memory image
signal processor.

Datasheet:
https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf

Signed-off-by: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>
---
 .../bindings/media/raspberrypi,pispbe.yaml    | 68 +++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml

diff --git a/Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml b/Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml
new file mode 100644
index 000000000000..50111b87ad81
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/raspberrypi,pispbe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Raspberry Pi PiSP Image Signal Processor (ISP) Back End
+
+maintainers:
+  - Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
+  - David Plowman <david.plowman@xxxxxxxxxxxxxxx>
+  - Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>
+  - Naushir Patuck <naush@xxxxxxxxxxxxxxx>
+  - Nick Hollinghurst <nick.hollinghurst@xxxxxxxxxxxxxxx>
+
+description: |
+  The Raspberry Pi PiSP Image Signal Processor (ISP) Back End is an image
+  processor that fetches images in Bayer or Grayscale format from DRAM memory
+  in tiles and produces images consumable by applications.
+
+  The full ISP documentation is available at:
+  https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf
+
+properties:
+  compatible:
+    const: raspberrypi,pispbe
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: isp_be
+
+  iommus:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    rpi1 {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        isp: pisp_be@880000  {
+             compatible = "raspberrypi,pispbe";
+             reg = <0x10 0x00880000  0x0 0x4000>;
+             interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+             clocks = <&firmware_clocks 7>;
+             clock-names = "isp_be";
+             iommus = <&iommu2>;
+        };
+    };
--
2.43.0





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