linux-kernel - Re: [PATCH 1/3] dt-bindings: reset: Add Amlogic T7 Reset Controller

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Date: Fri, 12 Apr 2024 15:12:00 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 kelvin.zhang@...ogic.com, Philipp Zabel <p.zabel@...gutronix.de>,
 Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Kevin Hilman <khilman@...libre.com>,
 Jerome Brunet <jbrunet@...libre.com>,
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
 Zelong Dong <zelong.dong@...ogic.com>
Subject: Re: [PATCH 1/3] dt-bindings: reset: Add Amlogic T7 Reset Controller

Hi,

On 29/03/2024 20:39, Krzysztof Kozlowski wrote:
> On 29/03/2024 10:17, Kelvin Zhang via B4 Relay wrote:
>> From: Zelong Dong <zelong.dong@...ogic.com>
>>
>> Add a new compatible and the related header file
>> for Amlogic T7 Reset Controller.
>>
>> Signed-off-by: Zelong Dong <zelong.dong@...ogic.com>
>> Signed-off-by: Kelvin Zhang <kelvin.zhang@...ogic.com>
>> ---
>>   .../bindings/reset/amlogic,meson-reset.yaml        |   1 +
>>   include/dt-bindings/reset/amlogic,t7-reset.h       | 197 +++++++++++++++++++++
>>   2 files changed, 198 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/reset/amlogic,meson-reset.yaml b/Documentation/devicetree/bindings/reset/amlogic,meson-reset.yaml
>> index f0c6c0df0ce3..fefe343e5afe 100644
>> --- a/Documentation/devicetree/bindings/reset/amlogic,meson-reset.yaml
>> +++ b/Documentation/devicetree/bindings/reset/amlogic,meson-reset.yaml
>> @@ -19,6 +19,7 @@ properties:
>>         - amlogic,meson-a1-reset # Reset Controller on A1 and compatible SoCs
>>         - amlogic,meson-s4-reset # Reset Controller on S4 and compatible SoCs
>>         - amlogic,c3-reset # Reset Controller on C3 and compatible SoCs
>> +      - amlogic,t7-reset # Reset Controller on T7 and compatible SoCs
>>   
> 
> If there is going to be any resend, please drop the comment. It's not
> really helpful and makes it trickier to read.
> 
>>     reg:
>>       maxItems: 1
>> diff --git a/include/dt-bindings/reset/amlogic,t7-reset.h b/include/dt-bindings/reset/amlogic,t7-reset.h
>> new file mode 100644
>> index 000000000000..ca4a832eeeec
>> --- /dev/null
>> +++ b/include/dt-bindings/reset/amlogic,t7-reset.h
>> @@ -0,0 +1,197 @@
>> +/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
>> +/*
>> + * Copyright (c) 2024 Amlogic, Inc. All rights reserved.
>> + */
>> +
>> +#ifndef _DT_BINDINGS_AMLOGIC_T7_RESET_H
>> +#define _DT_BINDINGS_AMLOGIC_T7_RESET_H
>> +
>> +/* RESET0 */
>> +/*					0-3	*/
> 
> I assume this matches existing drivers which do not use IDs but map the
> binding to hardware value? I remember we talked about changing it, so if
> something happened about this and it could be changed: please change.

I'm not aware of such discussion, and I don't really see the issue...
thoses are IDs, and yes they match the Hardware offsets, and ?

> 
> Otherwise, it's fine:
> 
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Thanks,
Neil

> 
> 
> Best regards,
> Krzysztof
>