linux-kernel - Re: [PATCH 0/2] soc: mediatek: pm-domains: solve power domain glitch issue

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Date: Mon, 25 Mar 2024 14:06:31 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: "yu-chang.lee" <yu-chang.lee@...iatek.com>,
 Ulf Hansson <ulf.hansson@...aro.org>,
 Matthias Brugger <matthias.bgg@...il.com>
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
 Project_Global_Chrome_Upstream_Group@...iatek.com, mandyjh.liu@...iatek.com,
 fan.chen@...iatek.com, xiufeng.li@...iatek.com
Subject: Re: [PATCH 0/2] soc: mediatek: pm-domains: solve power domain glitch
 issue

Il 25/03/24 13:19, yu-chang.lee ha scritto:
> Hi,
> 
> This series aims to solve power-off failures and occasional SMI hang issues that
> occur during camera stress tests. The issue arises because, when MTCMOS powers on
> or off, signal glitches are sometimes produced. This is fairly normal, but the
> software must address it to avoid mistaking the glitch for a transaction signal.
> 
> The solutions in these patches can be summarized as follows:
> 
> 1. Disable the sub-common port after turning off the Larb CG and before turning
>     off the Larb MTCMOS.
> 2. Use CLAMP to disable/enable the SMI common port.
> 3. Implement an AXI reset.
> For previous discussion on the direction of the code modifications, please refer
> to: https://lore.kernel.org/linux-arm-kernel/c476cc48-17ec-4e14-98d8-35bdffb5d296@collabora.com/
> 
> 
> yu-chang.lee (2):
>    soc: mediatek: pm-domains: add smi_larb_reset function when power on
>    soc: mediatek: pm-domains: support smi clamp protection

Can you please change both commit titles to use "pmdomain: mediatek:" instead of
"soc: mediatek:"?

Thanks
Angelo

> 
>   drivers/pmdomain/mediatek/mt8188-pm-domains.h |  69 +++++-
>   drivers/pmdomain/mediatek/mtk-pm-domains.c    | 206 +++++++++++++++---
>   drivers/pmdomain/mediatek/mtk-pm-domains.h    |  13 ++
>   3 files changed, 255 insertions(+), 33 deletions(-)
>