linux-kernel - Re: [PATCH 2/3] media: vsp1: Reset FCP for VSPD

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Message-ID: <20250612093757.GA4533@pendragon.ideasonboard.com>
Date: Thu, 12 Jun 2025 12:37:57 +0300
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Jacopo Mondi <jacopo.mondi+renesas@...asonboard.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
	Niklas Söderlund <niklas.soderlund@...natech.se>,
	linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Koji Matsuoka <koji.matsuoka.xm@...esas.com>,
	LUU HOAI <hoai.luu.ub@...esas.com>
Subject: Re: [PATCH 2/3] media: vsp1: Reset FCP for VSPD

On Thu, Jun 12, 2025 at 11:33:39AM +0200, Geert Uytterhoeven wrote:
> On Thu, 12 Jun 2025 at 09:19, Laurent Pinchart wrote:
> > On Mon, Jun 09, 2025 at 09:01:43PM +0200, Jacopo Mondi wrote:
> > > From: Koji Matsuoka <koji.matsuoka.xm@...esas.com>
> > >
> > > According to H/W manual v1.00, VSPD must be excecuted
> > > FCP_RST.SOFTRST after VI6_SRESET.SRST. So this patch adds it.
> > > VSPDL is not applicable.
> >
> > According to the R-Car Gen3 H/W manual v1.00, the FCP must be reset
> > after resetting the VSPD, except for the VSPDL. Do so.
> 
> "Rev.1.00"
> 
> Stil, that is a very old version. "Rev.2.40" is 6 years younger...

The good thing is that both document the reset procedure the same way
:-)

-- 
Regards,

Laurent Pinchart