From: Guenter Roeck <linux@roeck-us.net>
To: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>,
Magnus Damm <magnus.damm@gmail.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Brian Masney <bmasney@redhat.com>,
Wim Van Sebroeck <wim@linux-watchdog.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
linux-clk@vger.kernel.org,
Prabhakar <prabhakar.csengg+renesas@gmail.com>,
Biju Das <biju.das.jz@bp.renesas.com>,
Fabrizio Castro <fabrizio.castro.jz@renesas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: Re: [PATCH v4 5/7] watchdog: rzv2h: Add syscon support for WDTDCR
Date: Fri, 18 Sep 2026 10:39:44 -0700 [thread overview]
Message-ID: <a73c5d5d-dd64-4061-83cd-0a1cdcc2db4d@roeck-us.net> (raw)
In-Reply-To: <CA+V-a8vVtjALarck6PE3it1si2hNbveZWoGjTaTUW68Q6yYjcQ@mail.gmail.com>
Hi,
On 9/18/26 08:18, Lad, Prabhakar wrote:
> Hi Guenter,
>
> On Thu, Sep 17, 2026 at 2:12 AM Guenter Roeck <linux@roeck-us.net> wrote:
>>
>> Hi,
>>
>> On Mon, Aug 17, 2026 at 08:25:38PM +0100, Prabhakar wrote:
>>> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>>>
>>> On RZ/T2H and RZ/N2H SoCs, the WDTDCR (WDT Debug Control Register) resides
>>> in the second register region of the CPG/MSSR block. Since this
>>> multi-function block is shared with other peripherals, it is exposed via a
>>> syscon regmap interface.
>>>
>>> Look up the SYSC regmap using the optional "renesas,sysc" property and
>>> derive the WDTDCR offset from the watchdog instance index.
>>>
>>> Retain the existing MMIO-based access method when the "renesas,sysc"
>>> property is absent to preserve compatibility with existing DT's.
>>>
>>> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>>> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
>>
>> Can I apply this patch without the other patches of the series ?
>>
> I posted the v5 series here addressing Sashiko's comments.
>
Sorry, I was getting confused. I somehow thought they are different series.
Do you plan to send v6 to address the issues reported in v5 ?
Note that Sashiko no longer reports pre-existing issues in public,
so those will be out of scope.
Thanks,
Guenter
next prev parent reply other threads:[~2026-09-18 17:39 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-17 19:25 [PATCH v4 0/7] Add syscon support for Renesas RZ/T2H & RZ/N2H in CPG/MSSR driver Prabhakar
2026-08-17 19:25 ` [PATCH v4 1/7] clk: renesas: r9a09g077: Register SYSC regmap Prabhakar
2026-08-25 12:26 ` Geert Uytterhoeven
2026-08-17 19:25 ` [PATCH v4 2/7] arm64: dts: renesas: r9a09g077: Adjust CPG register region sizes Prabhakar
2026-08-25 12:27 ` Geert Uytterhoeven
2026-08-17 19:25 ` [PATCH v4 3/7] arm64: dts: renesas: r9a09g087: " Prabhakar
2026-08-25 12:27 ` Geert Uytterhoeven
2026-08-17 19:25 ` [PATCH v4 4/7] dt-bindings: watchdog: renesas,r9a09g057-wdt: Add CPG/MSSR syscon support Prabhakar
2026-08-25 12:28 ` Geert Uytterhoeven
2026-08-27 14:02 ` Guenter Roeck
2026-08-17 19:25 ` [PATCH v4 5/7] watchdog: rzv2h: Add syscon support for WDTDCR Prabhakar
2026-08-25 12:34 ` Geert Uytterhoeven
2026-09-17 1:12 ` Guenter Roeck
2026-09-18 15:18 ` Lad, Prabhakar
2026-09-18 17:39 ` Guenter Roeck [this message]
2026-08-17 19:25 ` [PATCH v4 6/7] arm64: dts: renesas: r9a09g077: Use CPG/MSSR syscon for WDTDCR access Prabhakar
2026-08-25 12:30 ` Geert Uytterhoeven
2026-08-17 19:25 ` [PATCH v4 7/7] arm64: dts: renesas: r9a09g087: " Prabhakar
2026-08-25 12:30 ` Geert Uytterhoeven
2026-09-08 12:31 ` [PATCH v4 0/7] Add syscon support for Renesas RZ/T2H & RZ/N2H in CPG/MSSR driver Geert Uytterhoeven
2026-09-08 16:22 ` Lad, Prabhakar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=a73c5d5d-dd64-4061-83cd-0a1cdcc2db4d@roeck-us.net \
--to=linux@roeck-us.net \
--cc=biju.das.jz@bp.renesas.com \
--cc=bmasney@redhat.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=fabrizio.castro.jz@renesas.com \
--cc=geert+renesas@glider.be \
--cc=krzk+dt@kernel.org \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-renesas-soc@vger.kernel.org \
--cc=linux-watchdog@vger.kernel.org \
--cc=magnus.damm@gmail.com \
--cc=mturquette@baylibre.com \
--cc=prabhakar.csengg+renesas@gmail.com \
--cc=prabhakar.csengg@gmail.com \
--cc=prabhakar.mahadev-lad.rj@bp.renesas.com \
--cc=robh@kernel.org \
--cc=sboyd@kernel.org \
--cc=wim@linux-watchdog.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®