linux-kernel - Re: [PATCH v4 01/15] clk: renesas: rzv2h-cpg: Add support for DSI clocks

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Message-ID: <CA+V-a8vsKhi8Z7zi749CErCF4cR6s4r0WcUumwFY1ZPg3uAO4g@mail.gmail.com>
Date: Thu, 1 May 2025 12:02:33 +0100
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: Fabrizio Castro <fabrizio.castro.jz@...esas.com>, ALOK TIWARI <alok.a.tiwari@...cle.com>
Cc: Andrzej Hajda <andrzej.hajda@...el.com>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Robert Foss <rfoss@...nel.org>, "laurent.pinchart" <laurent.pinchart@...asonboard.com>, 
	Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Biju Das <biju.das.jz@...renesas.com>, Geert Uytterhoeven <geert+renesas@...der.be>, 
	Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, 
	Philipp Zabel <p.zabel@...gutronix.de>, Magnus Damm <magnus.damm@...il.com>, 
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>, 
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, 
	"linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>, 
	"linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>, 
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v4 01/15] clk: renesas: rzv2h-cpg: Add support for DSI clocks

Hi Fabrizio,

On Thu, May 1, 2025 at 11:38 AM Fabrizio Castro
<fabrizio.castro.jz@...esas.com> wrote:
>
> Hi Alok,
>
> Thanks for your email.
>
> > From: ALOK TIWARI <alok.a.tiwari@...cle.com>
> > Sent: 01 May 2025 10:51
> > Subject: Re: [PATCH v4 01/15] clk: renesas: rzv2h-cpg: Add support for DSI clocks
> >
> >
> > On 01-05-2025 02:10, Prabhakar wrote:
> > > From: Lad Prabhakar<prabhakar.mahadev-lad.rj@...renesas.com>
> > >
> > > Add support for PLLDSI and PLLDSI divider clocks.
> > >
> > > Introduce the `renesas-rzv2h-dsi.h` header to centralize and share
> > > PLLDSI-related data structures, limits, and algorithms between the RZ/V2H
> > > CPG and DSI drivers.
> > >
> > > The DSI PLL is functionally similar to the CPG's PLLDSI, but has slightly
> > > different parameter limits and omits the programmable divider present in
> > > CPG. To ensure precise frequency calculations-especially for milliHz-level
> > > accuracy needed by the DSI driver-the shared algorithm allows both drivers
> > > to compute PLL parameters consistently using the same logic and input
> > > clock.
> > >
> > > Co-developed-by: Fabrizio Castro<fabrizio.castro.jz@...esas.com>
> > > Signed-off-by: Fabrizio Castro<fabrizio.castro.jz@...esas.com>
> > > Signed-off-by: Lad Prabhakar<prabhakar.mahadev-lad.rj@...renesas.com>
> >
> >
> > Acked-by: Alok Tiwari <alok.a.tiwari@...cle.com>
>
> I am not sure it makes sense for you to Ack this patch?
> Please have a look at the process here:
> https://www.kernel.org/doc/Documentation/process/submitting-patches.rst
>
> Perhaps you meant to add your Reviewed-by tag instead?
>
I'm not sure a Reviewed-by tag would be appropriate either, as it
implies the reviewer has performed a thorough technical review of the
patch.

Cheers,
Prabhakar