linux-kernel - Re: [PATCH v2 10/14] dt-bindings: clock: Add StarFive JH7110 always-on clock and reset generator

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Message-ID: <7815f518-c764-a3d8-cde6-89c1f17c2329@linaro.org>
Date:   Mon, 21 Nov 2022 14:24:04 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Emil Renner Berthing <emil.renner.berthing@...onical.com>
Cc:     Hal Feng <hal.feng@...rfivetech.com>,
        linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-clk@...r.kernel.org, Conor Dooley <conor@...nel.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 10/14] dt-bindings: clock: Add StarFive JH7110
 always-on clock and reset generator

On 21/11/2022 12:38, Emil Renner Berthing wrote:
> On Mon, 21 Nov 2022 at 09:49, Krzysztof Kozlowski
> <krzysztof.kozlowski@...aro.org> wrote:
>>
>> On 18/11/2022 02:06, Hal Feng wrote:
>>> From: Emil Renner Berthing <kernel@...il.dk>
>>>
>>> Add bindings for the always-on clock and reset generator (AONCRG) on the
>>> JH7110 RISC-V SoC by StarFive Ltd.
>>>
>>> Signed-off-by: Emil Renner Berthing <kernel@...il.dk>
>>> Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
>>> ---
>>>  .../clock/starfive,jh7110-aoncrg.yaml         | 76 +++++++++++++++++++
>>>  1 file changed, 76 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-aoncrg.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-aoncrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-aoncrg.yaml
>>> new file mode 100644
>>> index 000000000000..afbb205e294f
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-aoncrg.yaml
>>> @@ -0,0 +1,76 @@
>>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/clock/starfive,jh7110-aoncrg.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: StarFive JH7110 Always-On Clock and Reset Generator
>>> +
>>> +maintainers:
>>> +  - Emil Renner Berthing <kernel@...il.dk>
>>> +
>>> +properties:
>>> +  compatible:
>>> +    const: starfive,jh7110-aoncrg
>>> +
>>> +  reg:
>>> +    maxItems: 1
>>> +
>>> +  clocks:
>>> +    items:
>>> +      - description: Main Oscillator
>>> +      - description: RTC clock
>>
>> Real Time Clock clock? :) I don't think the input to clock controller is
>> the output of RTC...
> 
> The description is bad, but even the documentation calls it "clk_rtc"
> even though it's really an optional input from a 32k oscillator.

Then description should match reality, not documentation. Documentation
is often poor, so if possible better to extend it.

Best regards,
Krzysztof