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Message-ID: <CAHCN7xJFm5qcnVkiOt2+vQG=oeys=_4gonc7BkMWbXM-p0iURQ@mail.gmail.com>
Date: Fri, 27 Jun 2025 08:18:59 -0500
From: Adam Ford <aford173@...il.com>
To: Peng Fan <peng.fan@....nxp.com>
Cc: linux-arm-kernel@...ts.infradead.org, aford@...conembedded.com,
m.felsch@...gutronix.de, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
imx@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] arm64: dts: imx8mp: drop gpcv2 vpu power-domains and clocks
On Wed, Jun 4, 2025 at 7:20 PM Peng Fan <peng.fan@....nxp.com> wrote:
>
> On Fri, May 30, 2025 at 05:17:08PM -0500, Adam Ford wrote:
> >From: Marco Felsch <m.felsch@...gutronix.de>
> >
> >The GPCv2 G1, G2 and VC8000E power-domain don't need to reference the
> >VPUMIX power-domain nor their module clocks since the power and reset
> >handling is done by the VPUMIX blkctrl driver.
> >
> >Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
>
> LGTM: Reviewed-by: Peng Fan <peng.fan@....com>
>
> Just curious is there any issues without this change?
The vpumix_blk_ctrl driver handles the timing between the vpumix and
the g1, g2 and vc8000 devices. From what I can tell, this is required
to make it not hang on an 8MPQDL where the VPU is not present.
adam
>
> Regards,
> Peng
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