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Mon, 7 Nov 2022 10:26:05 -0500 (EST) Date: Mon, 7 Nov 2022 16:26:03 +0100 From: Maxime Ripard To: Mark Brown Subject: Re: [PATCH v2 43/65] ASoC: tlv320aic32x4: Add a determine_rate hook Message-ID: <20221107152603.57qimyzkinhifx5p@houat> References: <20221018-clk-range-checks-fixes-v2-0-f6736dec138e@cerno.tech> <20221018-clk-range-checks-fixes-v2-43-f6736dec138e@cerno.tech> <20221104155123.qomguvthehnogkdd@houat> <20221107084322.gk4j75r52zo5k7xk@houat> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="6jvzxow5645ldbud" Content-Disposition: inline In-Reply-To: X-Mailman-Approved-At: Wed, 09 Nov 2022 18:15:50 +0100 Cc: Ulf Hansson , Prashant Gaikwad , Alexandre Belloni , Liam Girdwood , Michael Turquette , Sekhar Nori , Alexandre Torgue , dri-devel@lists.freedesktop.org, Paul Cercueil , Max Filippov , Thierry Reding , linux-phy@lists.infradead.org, David Airlie , Fabio Estevam , linux-stm32@st-md-mailman.stormreply.com, Abel Vesa , Kishon Vijay Abraham I , Geert Uytterhoeven , Samuel Holland , Chunyan Zhang , Takashi Iwai , linux-tegra@vger.kernel.org, Jernej Skrabec , Jonathan Hunter , Chen-Yu Tsai , NXP Linux Team , Orson Zhai , linux-mips@vger.kernel.org, Luca Ceresoli , Linus Walleij , linux-rtc@vger.kernel.org, linux-clk@vger.kernel.org, Charles Keepax , Daniel Vetter , alsa-devel@alsa-project.org, Manivannan Sadhasivam , linux-kernel@vger.kernel.org, Sascha Hauer , linux-actions@lists.infradead.org, Richard Fitzgerald , linux-mediatek@lists.infradead.org, Baolin Wang , Matthias Brugger , Pengutronix Kernel Team , linux-arm-kernel@lists.infradead.org, AngeloGioacchino Del Regno , Alessandro Zummo , linux-sunxi@lists.linux.dev, Stephen Boyd , patches@opensource.cirrus.com, Peter De Schrijver , Nicolas Ferre , Andreas =?utf-8?Q?F=C3=A4rber?= , linux-renesas-soc@vger.kernel.org, Dinh Nguyen , Vinod Koul , Maxime Coquelin , David Lechner , Shawn Guo , Claudiu Beznea X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" --6jvzxow5645ldbud Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Nov 07, 2022 at 12:06:07PM +0000, Mark Brown wrote: > On Mon, Nov 07, 2022 at 09:43:22AM +0100, Maxime Ripard wrote: > > On Fri, Nov 04, 2022 at 03:59:53PM +0000, Mark Brown wrote: >=20 > > > Well, hopefully everyone for whom it's an issue currently will be > > > objecting to this version of the change anyway so we'll either know > > > where to set the flag or we'll get the whack-a-mole with the series > > > being merged? >=20 > > I'm sorry, I'm not sure what you mean here. The only issue to fix at the > > moment is that determine_rate and set_parent aren't coupled, and it led > > to issues due to oversight. >=20 > > I initially added a warning but Stephen wanted to fix all users in that > > case and make that an error instead. >=20 > My suggestion is that instead of doing either of these things it'd be > quicker and less error prone to just fix the core to provide the default > implementation if nothing more specific is provided. Any issues that > causes would already be present with your current series. >=20 > > If I filled __clk_mux_determine_rate into clocks that weren't using it > > before, I would change their behavior. With that flag set, on all users > > I add __clk_mux_determine_rate to, the behavior is the same than what we > > previously had, so the risk of regressions is minimal, and everything > > should keep going like it was? >=20 > The series does fill in __clk_mux_determine_rate for everything though - > if it was just assumed by default the only thing that'd be needed would > be adding the flag. The behavior assumed by default was equivalent to __clk_mux_determine_rate + CLK_SET_RATE_NO_REPARENT. We could indeed set both if determine_rate is missing in the core, but that's unprecedented in the clock framework so I think we'll want Stephen to comment here :) It's also replacing one implicit behavior by another. The point of this series was to raise awareness on that particular point, so I'm not sure it actually fixes things. We'll see what Stephen thinks about it. Maxime --6jvzxow5645ldbud Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCY2kjiwAKCRDj7w1vZxhR xbC4AQCzinBg5fORSxUmh/ryaaQ1U50ULCO44lpcoTcfgR8NCQEArCtBTBrB8cDz ZaXsPn80Mh//XhAP83gNXiHtZW4aJwQ= =1n6i -----END PGP SIGNATURE----- --6jvzxow5645ldbud--