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> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Reviewed-by: Naushir Patuck <naush@xxxxxxxxxxxxxxx> --- v4->v5: - No changes v3->v4: - Drop 'clock-names' as we have been confirmed there's a single clock v2->v3: - Add back 'clock-names' as suggested by Laurent - Add Rob's ack - minor grammar/style fixes --- .../bindings/media/raspberrypi,pispbe.yaml | 63 +++++++++++++++++++ 1 file changed, 63 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..1fc62a1d8eda --- /dev/null +++ b/Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml @@ -0,0 +1,63 @@ +# 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@xxxxxxxxxxxxxxx> + - Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx> + +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 + + iommus: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + +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>; + iommus = <&iommu2>; + }; + }; -- 2.44.0
