From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-03.galae.net (smtpout-03.galae.net [185.246.85.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6CAA85293F7 for ; Tue, 29 Sep 2026 13:22:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.85.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790688152; cv=none; b=lB5Wjdv+KWwQj/WXqR4SDPYCbRPuROVoL62w01yLzNFkyb0h5IgdC+OnXGpvie1dsxIfV9RdQPA6ezrdLsx4BZ0iOFi8ubG0mtzqT+63bO2mYhtAEsDp5VMGtqQJXj9UfVxHBTRcLQglr9E8wGGQrF4EF9el0TLWRmWwd0SBPP0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790688152; c=relaxed/simple; bh=FHgcVzckw7J9hKLtbO0xprD/AIvMCE5AqxCP6hOVswI=; h=Mime-Version:Content-Type:Date:Message-Id:From:Subject:Cc:To: References:In-Reply-To; b=NSJetzgHQZlBaN8YmT/7C9HP6rdpv7wIxCnGn34TfjhjhvInTtTFqTwg8guXcloJcu823maCGindhnvJ3enzaJ4c+dfsXG4xs6gHBRGNsTZ3wx/jLubQ0obU3voKX/68rW17R3usQa5bHwmoYJV7JlaWo94rSfmy8VzPmdoodhk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=rREzCYs5; arc=none smtp.client-ip=185.246.85.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="rREzCYs5" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-03.galae.net (Postfix) with ESMTPS id 1C8374E410B5; Tue, 29 Sep 2026 13:22:23 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id E3F04601BD; Tue, 29 Sep 2026 13:22:22 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id E4324103297BB; Tue, 29 Sep 2026 15:22:08 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1790688136; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=FHgcVzckw7J9hKLtbO0xprD/AIvMCE5AqxCP6hOVswI=; b=rREzCYs57TauLcCmyy1DL91h0dU96/3qi9aWRsbrKpBJlyYKn6+1p4Z1Iq1IzIeXXLaXTa kkq1+U5xL+3X0/gtmGoyBH4m0XubttAXozmLBSL+g25FBjPSnoKpZB3TrzUOClghvgRGVi w8kR6pqXnhXOG9/9zVP63yGDrFQq7PddFN3sovGRXnWKbiOHRb+l1kWChR17B0l039IF8A JClQQixWJXQHu0hfr4dEsBEiQeHohjDiBjWnjNeh6BVE4ggU9ypyfSYmUgQUa6GIKdEb2m p6Sf7W5UZ41wK7GFTTlY6rTaRLw3QYtRRD7DU9JLVi2OFD+Xb0p2Nbt4SMIefg== Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Tue, 29 Sep 2026 15:22:08 +0200 Message-Id: From: "Luca Ceresoli" Subject: Re: [PATCH 0/7] drm: remove deprecated *_of_get_bridge() from non-OF drivers (fixes build regression) Cc: "Arnd Bergmann" , "Doug Anderson" , "Hui Pu" , "Ian Ray" , "Thomas Petazzoni" , , , , , To: "Icenowy Zheng" , "Luca Ceresoli" , "Maarten Lankhorst" , "Maxime Ripard" , "Thomas Zimmermann" , "David Airlie" , "Simona Vetter" , "Frank Li" , "Sascha Hauer" , "Pengutronix Kernel Team" , "Fabio Estevam" , "Andrzej Hajda" , "Neil Armstrong" , "Robert Foss" , "Laurent Pinchart" , "Jonas Karlman" , "Jernej Skrabec" , "Dave Stevenson" , =?utf-8?q?Ma=C3=ADra_Canal?= , "Raspberry Pi Kernel Maintenance" , "Geert Uytterhoeven" X-Mailer: aerc 0.22.0 References: <20260929-drm-fix-of_get_bridge-build-regression-v1-0-ccb7e602daad@bootlin.com> In-Reply-To: X-Last-TLS-Session-Version: TLSv1.3 Hello Icenowy, On Tue Sep 29, 2026 at 12:46 PM CEST, Icenowy Zheng wrote: > =E5=9C=A8 2026-09-29=E4=BA=8C=E7=9A=84 12:36 +0200=EF=BC=8CLuca Ceresoli= =E5=86=99=E9=81=93=EF=BC=9A >> After commit Fixes: aa8a8c7e4641 ("drm/bridge: panel: move all code >> to >> drm_panel.c") some drivers fail building: >> >> =C2=A0 error: implicit declaration of function 'devm_drm_of_get_bridge' >> >> This is because devm_drm_of_get_bridge() (and drmm_of_get_bridge()) >> have >> been moved to drm-panel.h. >> >> The affected drivers are those which: >> >> =C2=A0* can be built without CONFIG_OF, and >> =C2=A0* don't include drm_panel.h >> >> The affected drivers are 3, fix them (patches 1-3) by replacing the >> deprecated *_of_get_bridge() calls with >> of_drm_get_bridge_by_endpoint(). > > The comment of drm_of_find_panel_or_bridge() still suggests > devm_of_get_bridge(), and the documentation at the head of drm_bridge.c > also mentions it. Ah, thanks for noticing. I'm taking a note to fix this later. > BTW should drm_of_get_bridge_by_endpoint() has some drmm/devm variant? Maybe, but not sure, as we introduce hotplug devm/drmm becomes pretty useless and even annoying. However I haven't checked all the cases, so we might reconsider this idea as we start converting more drivers though. Luca -- Luca Ceresoli, Bootlin Embedded Linux and Kernel engineering https://bootlin.com