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[92.176.231.205]) by smtp.gmail.com with ESMTPSA id b12-20020a05600010cc00b0033340aa3de2sm5284527wrx.14.2023.12.04.08.05.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Dec 2023 08:05:31 -0800 (PST) From: Javier Martinez Canillas To: Rob Herring Cc: Thomas Zimmermann , Ard Biesheuvel , devicetree@vger.kernel.org, Sergio Lopez , Sima Vetter , Hector Martin , Andrew Worsley , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Frank Rowand Subject: Re: [RFC PATCH] of/platform: Disable sysfb if a simple-framebuffer node is found In-Reply-To: References: <20231113085305.1823455-1-javierm@redhat.com> <87jzqi59bt.fsf@minerva.mail-host-address-is-not-set> <874jhj1fm3.fsf@minerva.mail-host-address-is-not-set> <58672ab8-99bf-4a2a-af79-031d1e8fcba0@suse.de> <87fs0mxlyp.fsf@minerva.mail-host-address-is-not-set> <87a5qqxq56.fsf@minerva.mail-host-address-is-not-set> Date: Mon, 04 Dec 2023 17:05:30 +0100 Message-ID: <87zfyqvtpx.fsf@minerva.mail-host-address-is-not-set> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Rob Herring writes: > On Mon, Dec 4, 2023 at 3:39=E2=80=AFAM Javier Martinez Canillas > wrote: >> Rob Herring writes: >> > On Fri, Dec 1, 2023 at 4:21=E2=80=AFAM Javier Martinez Canillas [...] >> >> > However, there might be one other issue with that and this fix. The DT >> > simplefb can have resources such as clocks and regulators. With >> > fw_devlink, the driver won't probe until those dependencies are met. >> > So if you want the framebuffer console up early, then you may want to >> > register the EFI framebuffer first and then handoff to the DT simplefb >> > when it probes (rather than registering the device). >> > >> > But I agree, probably better to take this patch now and have those >> > quirks instead of flat out not working. >> > >> >> If we do that what's the plan? Are you thinking about merging this patch >> through your OF tree or do you want to go through drm-misc with your ack? > > I can take it. Do we need this in 6.7 and stable? > IMO this can wait for v6.8 since is not a fix for a change introduced in the v6.7 merge window and something that only happens on a very specific setup (DT systems booting with u-boot EFI and providing an EFI-GOP table). Also the -rc cycle is already in -rc5, so it seems risky to push a change at this point. And distros can pick the patch if want to have it earlier. > Rob > --=20 Best regards, Javier Martinez Canillas Core Platforms Red Hat