linux-kernel - Re: [PATCH v2] dt-bingdings: perf: Support uncore ARM NI-700 PMU

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Message-ID: <e7bf16fc-b12d-47eb-9197-0694e6829ac8@linaro.org>
Date: Wed, 31 Jan 2024 08:49:18 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: "JiaLong.Yang" <jialong.yang@...ngroup.cn>, Will Deacon
 <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: shenghui.qu@...ngroup.cn, ke.zhao@...ngroup.cn, zhijie.ren@...ngroup.cn,
 Rob Herring <robh@...nel.org>, linux-arm-kernel@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dt-bingdings: perf: Support uncore ARM NI-700 PMU

On 31/01/2024 07:59, JiaLong.Yang wrote:
> Add file corresponding to hx_arm_ni.c introducing ARM NI-700 PMU driver
> for HX.
> 
> Signed-off-by: JiaLong.Yang <jialong.yang@...ngroup.cn>
> ---
> v1 --> v2:
> 1. Submit dt-bindings file Seperately.

Where is the driver?

Please read:
https://elixir.bootlin.com/linux/v6.8-rc2/source/Documentation/process/submitting-patches.rst
before posting.

> 2. Do some check:
>    ~ #: make dt_binding_check DT_SCHEMA_FILES=perf
>    LINT    Documentation/devicetree/bindings
>    CHKDT   Documentation/devicetree/bindings/processed-schema.json
>    SCHEMA  Documentation/devicetree/bindings/processed-schema.json
>    DTEX    Documentation/devicetree/bindings/perf/hx,c2000-arm-ni.example.dts
>    DTC_CHK Documentation/devicetree/bindings/perf/hx,c2000-arm-ni.example.dtb

No other changes? Sorry, this is not acceptable. You must implement
feedback and then describe what you changed in the changelog.

> 
>  .../bindings/perf/hx,c2000-arm-ni.yaml        | 53 +++++++++++++++++++
>  .../devicetree/bindings/vendor-prefixes.yaml  |  2 +
>  MAINTAINERS                                   |  6 +++
>  3 files changed, 61 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/perf/hx,c2000-arm-ni.yaml
> 
> diff --git a/Documentation/devicetree/bindings/perf/hx,c2000-arm-ni.yaml b/Documentation/devicetree/bindings/perf/hx,c2000-arm-ni.yaml
> new file mode 100644
> index 000000000000..de50c79a5f23
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/perf/hx,c2000-arm-ni.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/perf/hx,c2000-arm-ni.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: HX-C2000 NI (Network-on-chip Interconnect) Performance Monitors
> +
> +maintainers:
> +  - Jialong Yang <jialong.yang@...ngroup.cn>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - hx,c2000-arm-ni
> +
> +  reg:
> +    items:
> +      - description: Physical address of the base (PERIPHBASE) and
> +          size of the whole NI configuration address space.
> +
> +  interrupts:
> +    minItems: 1

NAK, I wrote why. You just ignored my comments and did not even wait for
my feedback.

> +    items:
> +      - description: Overflow interrupt for clock domain 0
> +      - description: Overflow interrupt for clock domain 1
> +      - description: Overflow interrupt for clock domain 2
> +      - description: Generally, one interrupt line for one PMU. But this also
> +          support one interrupt line for a NI if merged.
> +
> +  pccs-id:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: Used to identify NIs in system which has more than
> +      one NI.

No, reg does it. Drop the property. Anyway you miss here vendor prefix
and proper explanation.

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: true

NAK, not explained in changelog, not correct.

> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    pmu@...f0000 {

Use 4 spaces for example indentation.

> +            compatible = "hx,c2000-arm-ni";
> +            reg = <0x2b420000 0x10000>;
> +            pccs-id = <0>;
> +            interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
> +    };
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> index 1a0dc04f1db4..f6b4103ef436 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> @@ -617,6 +617,8 @@ patternProperties:
>      description: Shenzhen Hugsun Technology Co. Ltd.
>    "^hwacom,.*":
>      description: HwaCom Systems Inc.
> +  "^hx,.*":

hexin,

> +    description: HEXIN Technologies Co., Ltd.
>    "^hxt,.*":
>      description: HXT Semiconductor
>    "^hycon,.*":
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 8999497011a2..101974780710 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -18866,6 +18866,12 @@ L:	linux-riscv@...ts.infradead.org
>  S:	Maintained
>  F:	arch/riscv/boot/dts/thead/
>  
> +HX ARM-NI-700 PMU DRIVERS
> +M:	Jialong Yang <jialong.yang@...ngroup.cn>
> +S:	Supported
> +F:	Documentation/devicetree/bindings/perf/hx,c2000-arm-ni.yaml
> +F:	drivers/perf/hx_arm_ni.c

There is no such file.

Best regards,
Krzysztof