linux-kernel - Re: [PATCH v3 1/3] dt-bindings: power: rpmhpd: Add Generic RPMh PD indexes

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Date:   Tue, 11 Jul 2023 13:44:44 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rohit Agarwal <quic_rohiagar@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/3] dt-bindings: power: rpmhpd: Add Generic RPMh PD
 indexes

On 11.07.2023 08:22, Krzysztof Kozlowski wrote:
> On 11/07/2023 08:17, Rohit Agarwal wrote:
>>
>> On 7/11/2023 11:22 AM, Krzysztof Kozlowski wrote:
>>> On 11/07/2023 07:42, Rohit Agarwal wrote:
>>>> Add Generic RPMh Power Domain indexes that can be used
>>>> for all the Qualcomm SoC henceforth.
>>>>
>>>> Signed-off-by: Rohit Agarwal <quic_rohiagar@...cinc.com>
>>>> Suggested-by: Konrad Dybcio <konrad.dybcio@...aro.org>
>>>> ---
>>>>   include/dt-bindings/power/qcom-rpmhpd.h | 30 ++++++++++++++++++++++++++++++
>>>>   1 file changed, 30 insertions(+)
>>>>   create mode 100644 include/dt-bindings/power/qcom-rpmhpd.h
>>>>
>>>> diff --git a/include/dt-bindings/power/qcom-rpmhpd.h b/include/dt-bindings/power/qcom-rpmhpd.h
>>>> new file mode 100644
>>>> index 0000000..4da2e04
>>>> --- /dev/null
>>>> +++ b/include/dt-bindings/power/qcom-rpmhpd.h
>>> Filename based on compatible.
>> This is not specific for SDX75. These are generic ones that should be 
>> used for all other targets.
>> Konrad suggested in v1 to avoid target specific prefixes everytime and 
>> to create a new generic
>> dt-bindings that can be reused.
>>>> @@ -0,0 +1,30 @@
>>>> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
>>>> +/*
>>>> + * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
>>>> + */
>>>> +
>>>> +#ifndef _DT_BINDINGS_POWER_QCOM_RPMHPD_H
>>>> +#define _DT_BINDINGS_POWER_QCOM_RPMHPD_H
>>>> +
>>>> +/* Generic RPMH Power Domain Indexes */
>>>> +#define CX               0
>>> These are very generic names, usually not used in global headers. Please
>>> use some reasonable prefix.
>> This was based on the suggestion from Konrad in v2 to drop the RPMHPD 
>> prefix and we can go only with names like CX, etc.
> 
> I don't think having so generic name in tree-wide header is good idea.
Conversely, I think that it would be very clear in files including this header.

Konrad
> CX can mean anything.
> 
> Best regards,
> Krzysztof
>