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[209.85.210.49]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7f35b5a7616sm7971576a34.8.2026.08.10.07.57.43 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Aug 2026 07:57:44 -0700 (PDT) Received: by mail-ot1-f49.google.com with SMTP id 46e09a7af769-7e9f1f24cbcso1713063a34.0 for ; Mon, 10 Aug 2026 07:57:43 -0700 (PDT) X-Forwarded-Encrypted: i=1; AHgh+RpUUs482w8ODrO3bT5tXBfslNalcaEIoiNbmcCbqhjXB7UFEEEyk5S/s/s9BAXLQq4goZgwBV3MxfhjviE=@vger.kernel.org X-Received: by 2002:a05:6102:2082:b0:74d:5456:b6fb with SMTP id ada2fe7eead31-7652241d10cmr1596982137.16.1786373431244; Mon, 10 Aug 2026 07:50:31 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: In-Reply-To: From: Geert Uytterhoeven Date: Mon, 10 Aug 2026 16:50:19 +0200 X-Gmail-Original-Message-ID: X-Gm-Features: AUfX_mzSDh0l0A6CyrHddRhefJg-h_HSruJEAkSrbmndCIqd_rMaLktXcM1WovQ Message-ID: Subject: Re: [PATCH v3 0/6] R-Car X5H CPG/MDLC support To: Ulf Hansson Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michael Turquette , Stephen Boyd , Brian Masney , Ulf Hansson , Philipp Zabel , Wolfram Sang , Marek Vasut , Kuninori Morimoto , devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Ulf, On Mon, 10 Aug 2026 at 16:18, Ulf Hansson wr= ote: > On Wed, Aug 5, 2026 at 5:21=E2=80=AFPM Geert Uytterhoeven > wrote: > > This patch series adds minimal support for the Renesas R-Car X5H Clock > > Pulse Generator (CPG) and Module Controller (MDLC), to aim for replacin= g > > the dummy clocks in r8a78000.dtsi with proper hardware description. > > These two components are closely related, in the sense that they are > > both supposed to be accessed through the ARM System Control and > > Management Interface (SCMI) on the Ironhide development board. > > > > This series consists of three parts: > > 1. Patches 1-2 add DT bindings and DT binding definitions, > > 2. Patches 3-4 add minimal CPG and MDLC drivers, > > 3. Patches 5-6 update the DTS. > > Note that this series depends on v7.2-rc2, due to the use of > > . > > > > Changes compared to v2[1]: > > - Add Acked-by, Reviewed-by, > > - Add fixed-rate clocks to kerneldoc of r8a78000_cpg_priv.map, > > - Use devm_clk_hw_register_fixed_rate(), drop unregister_fixed_clks()= , > > - Drop fill_clk_map(), as it is not really needed until SCMI remappin= g > > support is added later, > > - Replace by more specific > > in v7.2-rc2, > > - Add a comment to document only always-on domains are supported, > > - Consistently use /* sentinel */ for zero sentinels, > > - Drop trailing commas from sentinels, > > - Sort MDLC nodes (alphabetically, by label). > > > > Major changes compared to v1[2] (more detail in the individual patches)= : > > - Add default support not using SCMI, > > - Drop everything related to SCMI. > > > > Note that this series does not use or rely on SCMI in any way. > > SCMI remapping support will be added in a subsequent series (old versio= n > > at [3]). > > Full hardware support without using SCMI could be added, too, if anyone > > would care about that use case. > > > > For testing, I have pushed this series plus additional work (including > > a rebased and updated version of [3]) to [4]. > > > > While I know it is getting late in the cycle, this work (especially the > > DT bindings) are a dependency for about any R-Car X5H progress, so it > > would be good to have it included in v7.3. > > Hence I plan to queue the clock patches (1, 3) in renesas-clk for v7.3 > > (Stephen still hasn't merged my earlier PR for v7.3 anyway). > > Ulf: It would be great if you could take the pmdomain patches (2, 4). > > Patch 2 applied for next, but I left patch4 for now as it didn't apply Thank you! > cleanly (drivers/soc/renesas/Kconfig had a conflict), thanks! I guess your tree still has the duplicate "default ARCH_RENESAS"? Patch 4 just adds a single line there, and the conflict should be easy to fix. If you want to send me a new patch, please let me know. Thanks again! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k= .org In personal conversations with technical people, I call myself a hacker. Bu= t when I'm talking to journalists I just say "programmer" or something like t= hat. -- Linus Torvalds