linux-kernel - Re: [PATCH v8 2/2] memory: mtk-smi: mt8188: Add SMI reset and clamp for MT8188

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Message-ID: <7421d8f4f3d5fdb392f46df93bfee21a97cc2e1c.camel@mediatek.com>
Date: Thu, 24 Jul 2025 01:49:43 +0000
From: Friday Yang (杨阳) <Friday.Yang@...iatek.com>
To: "robh@...nel.org" <robh@...nel.org>, "matthias.bgg@...il.com"
	<matthias.bgg@...il.com>, Yong Wu (吴勇)
	<Yong.Wu@...iatek.com>, "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
	"conor+dt@...nel.org" <conor+dt@...nel.org>, "krzk@...nel.org"
	<krzk@...nel.org>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
CC: "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "linux-mediatek@...ts.infradead.org"
	<linux-mediatek@...ts.infradead.org>, "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>, Project_Global_Chrome_Upstream_Group
	<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [PATCH v8 2/2] memory: mtk-smi: mt8188: Add SMI reset and clamp
 for MT8188

On Thu, 2025-06-12 at 17:16 +0200, Krzysztof Kozlowski wrote:
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> 
> 
> On 21/05/2025 08:33, Friday Yang wrote:
> > From: "Friday Yang" <friday.yang@...iatek.com>
> > 
> > To prevent handling glitch signals during MTCMOS on/off
> > transitions,
> > SMI requires clamp and reset operations. Parse the reset settings
> > for
> > SMI LARBs and the clamp settings for the SMI Sub-Common. Register
> > genpd callback for the SMI LARBs located in image, camera and IPE
> > subsystems, and apply reset and clamp operations within the
> > callback.
> > 
> > Signed-off-by: Friday Yang <friday.yang@...iatek.com>
> > Reviewed-by: AngeloGioacchino Del Regno <
> > angelogioacchino.delregno@...labora.com>
> > Acked-by: Rob Herring <robh@...nel.org>
> 
> You did not respond to previous review. Sending the same while
> ignoring
> previous review is obvious NAK.
> 

Apologies for missing the message. In the v6 patch, I replaced
'pm_runtime_enable' with 'devm_pm_runtime_enable'. You pointed out that
this change might alter the cleanup order and potentially introduce
errors.

v6:
https://lore.kernel.org/lkml/20250408033206.12176-3-friday.yang@mediatek.com/

Therefore, in the v7 patch, I reverted this change and continued using
'pm_runtime_enable' in the SMI driver. However, I did not include a
clear description of the changes between v6 and v7 in the cover letter.

v7:
https://lore.kernel.org/lkml/9f01a9a4-89b2-4bfc-97cd-827be989ef16@kernel.org/

In the v8 patch, I have added a description in the cover letter.
This series just add functions for SMI clamp and not change anything
else. Is this acceptable to you?


> Best regards,
> Krzysztof