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Thu, 13 Oct 2022 04:59:49 -0400 (EDT) Date: Thu, 13 Oct 2022 10:59:47 +0200 From: Maxime Ripard To: Florian Fainelli Cc: Daniel Vetter , David Airlie , Broadcom internal kernel review list , Michael Turquette , Scott Branden , Stephen Boyd , Emma Anholt , Ray Jui , linux-rpi-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Dom Cobley , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2 0/7] drm/vc4: Fix the core clock behaviour Message-ID: <20221013085947.jux4tfbh64ldluin@houat> References: <20220815-rpi-fix-4k-60-v2-0-983276b83f62@cerno.tech> <20221010114420.beytjynzshjgiy6y@houat> <395633de-193f-609e-abc6-9dddb2cae3c0@gmail.com> MIME-Version: 1.0 In-Reply-To: <395633de-193f-609e-abc6-9dddb2cae3c0@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221013_015951_157889_8F0C22B0 X-CRM114-Status: GOOD ( 24.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============4628541296825230268==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============4628541296825230268== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="xi2nxcoqs7owfyl4" Content-Disposition: inline --xi2nxcoqs7owfyl4 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Florian, On Mon, Oct 10, 2022 at 12:07:22PM -0700, Florian Fainelli wrote: > On 10/10/22 04:44, Maxime Ripard wrote: > > Hi Florian, > >=20 > > On Tue, Sep 20, 2022 at 02:50:19PM +0200, Maxime Ripard wrote: > > > Those patches used to be part of a larger clock fixes series: > > > https://lore.kernel.org/linux-clk/20220715160014.2623107-1-maxime@cer= no.tech/ > > >=20 > > > However, that series doesn't seem to be getting anywhere, so I've spl= it out > > > these patches that fix a regression that has been there since 5.18 an= d that > > > prevents the 4k output from working on the RaspberryPi4. > > >=20 > > > Hopefully, we will be able to merge those patches through the DRM tre= e to avoid > > > any further disruption. > >=20 > > Could you review this? Ideally this would be merged through drm-misc due > > to the dependencies between the new firmware functions and the DRM > > patches. >=20 > I suppose I can review the firmware parts if you would like me to I was of course asking for the firmware parts :) > for vc4 I am pretty much clueless, and despite efforts from Emma to > get the vc4 driver to be usable on platforms other than Pi, that never > happened unfortunately. Stefan had the same concerns, but I don't think that's a big one. If needs be, we can move the call to the firware into an if statement or whatever and support a firmware-less device. > It would be better to keep the firmware and vc4 drivers decoupled, > just so "wrong" assumptions are not made, but for all practical > purposes this is the only combination that exists. I know, and my initial proposal was relying on a generic CCF function to implement this. Stephen didn't feel like a single user for it was enough, and there were some technical drawbacks too that might not have made this solution robust enough. Hence the firmware solution. Maxime --xi2nxcoqs7owfyl4 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCY0fTgwAKCRDj7w1vZxhR xWmxAQDOTnHICbSvwbYwASVkNAnE/Tiwz+E7mi+miG42l+Xi8wEAy7apqdl/hFYY g+PNXCY9HOx+PMldyNRRP9lFgFC1sQA= =oC3j -----END PGP SIGNATURE----- --xi2nxcoqs7owfyl4-- --===============4628541296825230268== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============4628541296825230268==--