linux-kernel - Re: [PATCH V2 1/3] dt-bindings: arm: mediatek: convert hifsys to the json-schema clock

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Date: Fri, 9 Feb 2024 10:21:45 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 Rafał Miłecki <zajec5@...il.com>,
 Russell King <linux@...linux.org.uk>,
 Daniel Lezcano <daniel.lezcano@...aro.org>,
 Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: Matthias Brugger <matthias.bgg@...il.com>, devicetree@...r.kernel.org,
 linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
 Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH V2 1/3] dt-bindings: arm: mediatek: convert hifsys to the
 json-schema clock

Il 09/02/24 10:17, Krzysztof Kozlowski ha scritto:
> On 09/02/2024 09:53, AngeloGioacchino Del Regno wrote:
>> Il 08/02/24 22:59, Rafał Miłecki ha scritto:
>>> From: Rafał Miłecki <rafal@...ecki.pl>
>>>
>>> This helps validating DTS files. Introduced changes:
>>> 1. Documented "reg" property
>>> 2. Documented "#reset-cells" property
>>> 3. Dropped "syscon" as it was incorrectly used
>>> 4. Adjusted "compatible" and "reg" in example
>>>
>>> Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
>>> ---
>>>    .../bindings/arm/mediatek/mediatek,hifsys.txt | 26 ----------
>>>    .../clock/mediatek,mt2701-hifsys.yaml         | 51 +++++++++++++++++++
>>>    2 files changed, 51 insertions(+), 26 deletions(-)
>>>    delete mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt
>>>    create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt
>>> deleted file mode 100644
>>> index 323905af82c3..000000000000
>>> --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt
>>> +++ /dev/null
>>> @@ -1,26 +0,0 @@
>>> -Mediatek hifsys controller
>>> -============================
>>> -
>>> -The Mediatek hifsys controller provides various clocks and reset
>>> -outputs to the system.
>>> -
>>> -Required Properties:
>>> -
>>> -- compatible: Should be:
>>> -	- "mediatek,mt2701-hifsys", "syscon"
>>> -	- "mediatek,mt7622-hifsys", "syscon"
>>> -	- "mediatek,mt7623-hifsys", "mediatek,mt2701-hifsys", "syscon"
>>> -- #clock-cells: Must be 1
>>> -
>>> -The hifsys controller uses the common clk binding from
>>> -Documentation/devicetree/bindings/clock/clock-bindings.txt
>>> -The available clocks are defined in dt-bindings/clock/mt*-clk.h.
>>> -
>>> -Example:
>>> -
>>> -hifsys: clock-controller@...00000 {
>>> -	compatible = "mediatek,mt2701-hifsys", "syscon";
>>> -	reg = <0 0x1a000000 0 0x1000>;
>>> -	#clock-cells = <1>;
>>> -	#reset-cells = <1>;
>>> -};
>>> diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
>>> new file mode 100644
>>> index 000000000000..eb429337cdf4
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
>>> @@ -0,0 +1,51 @@
>>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/clock/mediatek,mt2701-hifsys.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: Mediatek hifsys controller
>>
>> Please, "MediaTek HIFSYS controller"
> 
> Them maybe "clock controller" or "clock and reset controller"?

Yeah, that's right, let's prefer "clock and reset controller", as this binding does
describe exactly only those two functionalities of the whole HIFSYS block.

Cheers,
Angelo

> 
> 
> Best regards,
> Krzysztof
>