linux-kernel - Re: [PATCH v5 1/6] dt-bindings: thermal: mediatek: Rename thermal zone definitions for MT8186 and MT8188

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Message-ID: <20240524-concerned-fritter-262f5e16293e@spud>
Date: Fri, 24 May 2024 19:24:47 +0100
From: Conor Dooley <conor@...nel.org>
To: Julien Panis <jpanis@...libre.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Nicolas Pitre <npitre@...libre.com>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Zhang Rui <rui.zhang@...el.com>, Lukasz Luba <lukasz.luba@....com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v5 1/6] dt-bindings: thermal: mediatek: Rename thermal
 zone definitions for MT8186 and MT8188

On Fri, May 24, 2024 at 11:04:34AM +0200, Julien Panis wrote:
> Use thermal zone names that make more sense.
> 
> Signed-off-by: Julien Panis <jpanis@...libre.com>

Removing the defines is an ABI break. If these are all the same devices,
but with more accurate naming, then keep the old defines and add new
ones. However, the GPU1 define changes in the course of this patch which
is more problematic.

Why do these names even make more sense? Where did the old names come
from and where do the new?

Thanks,
Conor.

> ---
>  include/dt-bindings/thermal/mediatek,lvts-thermal.h | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/include/dt-bindings/thermal/mediatek,lvts-thermal.h b/include/dt-bindings/thermal/mediatek,lvts-thermal.h
> index bf95309d2525..ddc7302a510a 100644
> --- a/include/dt-bindings/thermal/mediatek,lvts-thermal.h
> +++ b/include/dt-bindings/thermal/mediatek,lvts-thermal.h
> @@ -24,7 +24,7 @@
>  #define MT8186_BIG_CPU1	5
>  #define MT8186_NNA		6
>  #define MT8186_ADSP		7
> -#define MT8186_MFG		8
> +#define MT8186_GPU		8
>  
>  #define MT8188_MCU_LITTLE_CPU0	0
>  #define MT8188_MCU_LITTLE_CPU1	1
> @@ -34,11 +34,11 @@
>  #define MT8188_MCU_BIG_CPU1	5
>  
>  #define MT8188_AP_APU		0
> -#define MT8188_AP_GPU1		1
> -#define MT8188_AP_GPU2		2
> -#define MT8188_AP_SOC1		3
> -#define MT8188_AP_SOC2		4
> -#define MT8188_AP_SOC3		5
> +#define MT8188_AP_GPU0		1
> +#define MT8188_AP_GPU1		2
> +#define MT8188_AP_ADSP		3
> +#define MT8188_AP_VDO		4
> +#define MT8188_AP_INFRA		5
>  #define MT8188_AP_CAM1		6
>  #define MT8188_AP_CAM2		7
>  
> 
> -- 
> 2.37.3
> 

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