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[73.183.52.120]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-50751256df4sm24041401cf.16.2026.02.27.08.38.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Feb 2026 08:38:44 -0800 (PST) Date: Fri, 27 Feb 2026 11:38:42 -0500 From: Brian Masney To: Michael Turquette , Stephen Boyd Cc: linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Abel Vesa , Andrea della Porta , Baolin Wang , Bjorn Andersson , Chanwoo Choi , Frank Li , Geert Uytterhoeven , Krzysztof Kozlowski , Orson Zhai , Sascha Hauer , Sudeep Holla , Sylwester Nawrocki , Tudor Ambarus , Alim Akhtar , arm-scmi@vger.kernel.org, Chunyan Zhang , Cristian Marussi , Fabio Estevam , imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Peng Fan , Pengutronix Kernel Team , Biju Das Subject: Re: [PATCH 01/13] clk: add new flag CLK_ROUNDING_FW_MANAGED Message-ID: References: <20260226-clk-det-rate-fw-managed-v1-0-4421dd2f6dc6@redhat.com> <20260226-clk-det-rate-fw-managed-v1-1-4421dd2f6dc6@redhat.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260226-clk-det-rate-fw-managed-v1-1-4421dd2f6dc6@redhat.com> User-Agent: Mutt/2.2.14 (2025-02-20) On Thu, Feb 26, 2026 at 01:16:45PM -0500, Brian Masney wrote: > There are some clocks where the rounding is managed by the hardware, and > the determine_rate() clk ops is just a noop that simply returns 0. Add a > new flag for these type of clocks, and update the clk core so that the > determine_rate() clk op is not required when this flag is set. > > Signed-off-by: Brian Masney > ... > diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h > index 1cda2c78dffaff037f0f16b0f11106b63b3a746f..187f8248a9c840c701cbbba99bb7cdeef7b654ee 100644 > --- a/include/linux/clk-provider.h > +++ b/include/linux/clk-provider.h > @@ -32,6 +32,8 @@ > #define CLK_OPS_PARENT_ENABLE BIT(12) > /* duty cycle call may be forwarded to the parent clock */ > #define CLK_DUTY_CYCLE_PARENT BIT(13) > +/* clock rate rounding is managed by firmware, don't require determine_rate */ > +#define CLK_ROUNDING_FW_MANAGED BIT(14) Based on a conversation in the Renesas driver change, I think we should rename this flag to CLK_ROUNDING_NOOP. Let me know if there are any objections, or suggestions for a better name. I'll let let this sit out there for about a week or so before sending a v2. Brian