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SubjectRe: [PATCH V2 11/11] dts: bindings: Document device tree bindings for Arm TRBE
On Wed, Jan 13, 2021 at 09:48:18AM +0530, Anshuman Khandual wrote:
> From: Suzuki K Poulose <suzuki.poulose@arm.com>
>
> Document the device tree bindings for Trace Buffer Extension (TRBE).
>
> Cc: Anshuman Khandual <anshuman.khandual@arm.com>
> Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
> Cc: Rob Herring <robh@kernel.org>
> Cc: devicetree@vger.kernel.org
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
> ---
> Documentation/devicetree/bindings/arm/trbe.yaml | 46 +++++++++++++++++++++++++
> 1 file changed, 46 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/arm/trbe.yaml
>
> diff --git a/Documentation/devicetree/bindings/arm/trbe.yaml b/Documentation/devicetree/bindings/arm/trbe.yaml
> new file mode 100644
> index 0000000..2258595
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/trbe.yaml
> @@ -0,0 +1,46 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +# Copyright 2021, Arm Ltd
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/arm/trbe.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: ARM Trace Buffer Extensions
> +
> +maintainers:
> + - Anshuman Khandual <anshuman.khandual@arm.com>
> +
> +description: |
> + Description of TRBE hw

Huh?

> +
> +properties:
> + $nodename:
> + pattern: "trbe"

const: trbe

> + compatible:
> + items:
> + - const: arm,trace-buffer-extension

Any versioning to this? Or is that discoverable?

> +
> + interrupts:
> + description: |
> + Exactly 1 PPI must be listed. For heterogeneous systems where
> + TRBE is only supported on a subset of the CPUs, please consult
> + the arm,gic-v3 binding for details on describing a PPI partition.
> + maxItems: 1
> +
> +required:
> + - compatible
> + - interrupts
> +
> +additionalProperties: false
> +
> +

Extra blank line.

> +examples:
> +
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> + trbe {
> + compatible = "arm,trace-buffer-extension";
> + interrupts = <GIC_PPI 15 IRQ_TYPE_LEVEL_HIGH>;
> + };
> +...
> --
> 2.7.4
>

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