[v3,7/9] media: dt-bindings: Add bindings for Raspberry Pi PiSP Back End
Commit Message
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@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
v2->v3:
- Add back 'clock-names' as suggested by Laurent
- Add Rob's ack
- minor grammar/style fixes
---
.../bindings/media/raspberrypi,pispbe.yaml | 68 +++++++++++++++++++
1 file changed, 68 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml
--
2.43.2
new file mode 100644
@@ -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:
+ - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
+ - Jacopo Mondi <jacopo.mondi@ideasonboard.com>
+
+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:
+ items:
+ - enum:
+ - brcm,bcm2712-pispbe
+ - const: raspberrypi,pispbe
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: aclk
+
+ iommus:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ isp@880000 {
+ compatible = "brcm,bcm2712-pispbe", "raspberrypi,pispbe";
+ reg = <0x10 0x00880000 0x0 0x4000>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&firmware_clocks 7>;
+ clock-names = "aclk";
+ iommus = <&iommu2>;
+ };
+ };