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 BCC992C0F68 for ; Fri, 28 Nov 2025 08:09:31 +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=1764317376; cv=none; b=MidQbSZ9H68/TNr5Q2w/UvHB+xAk2uGcg4GkQQTlNDubUPHym7MgEr1qoQrxBNtbrfYXP9irgoeNwgU7sIOUtCNVLEkQNryoIBkWck/BEA8PJrP+w4RLG6EeMwsqmqn9dxkM3qoLcEmHukgmw/yCnSPikYssJNDwzU9j18EjVok= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764317376; c=relaxed/simple; bh=SJJd7mb7+crqWHVBGQwC9fg4ZOK2TA2FhZTDzbQ6I5U=; h=Mime-Version:Content-Type:Date:Message-Id:Subject:Cc:To:From: References:In-Reply-To; b=VgF24c5RJIR9Ypo8qAW4+/bUFpekIf0BxHKXou6RCO8+4rbPT1IKZXjropGfzO1f20IVZ5WB5wMwXTM6RVJJENxSgotiaurTcJSnQ58tKYohOxxr6a/l6PMACRYILHry5uuyFW4aw8m4vHxtkNyAaCJK2ffvP557PxFDkv+FABU= 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=CQGZ+4kJ; 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="CQGZ+4kJ" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-03.galae.net (Postfix) with ESMTPS id 18F1B4E41943; Fri, 28 Nov 2025 08:09:24 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id E138760706; Fri, 28 Nov 2025 08:09:23 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 0E31F103C8F28; Fri, 28 Nov 2025 09:09:17 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1764317363; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=SJJd7mb7+crqWHVBGQwC9fg4ZOK2TA2FhZTDzbQ6I5U=; b=CQGZ+4kJ3npgGBheCP7k755UGb3ooVxj3nc6hYwDV/px7uUbFZu5vPDx+zrXVwdk1rQqZL +ecxzKwIn4p1NqfOPLaaRW89/+PJPVFEeu2qhJFSpV+YK7kHSPNnhI2CXg65Zqh4BrwvZV 1PrJveH2C5iAkxSPspt6kMTJS2ZFjfOTiFOieS2RgLQnsIpY1DPxLws+jhdSxpGhqsraJz mtODTQL0SydaLZv8qAqnFertisDqaE6X2wreUffzGdwf5ClOL0oh+qIcc3k4S6QrnehZpQ MwAJZvVOvr9JsgeH/P57Pnr/SSGsbJPOJ0FHhL5+izY4SwJCO6lWOuhe5tyEeQ== Precedence: bulk X-Mailing-List: linux-kernel@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: Fri, 28 Nov 2025 09:09:17 +0100 Message-Id: Subject: Re: [PATCH v3 0/2] drm/bridge: handle gracefully atomic updates during bridge removal Cc: , , "Andrzej Hajda" , "David Airlie" , "Dmitry Baryshkov" , "Hui Pu" , "Jernej Skrabec" , "Jonas Karlman" , "Laurent Pinchart" , "Maarten Lankhorst" , "Neil Armstrong" , "Robert Foss" , "Simona Vetter" , "Thomas Petazzoni" , "Thomas Zimmermann" , "Francesco Dolcini" , "Emanuele Ghidoli" , =?utf-8?q?Jo=C3=A3o_Paulo_Gon=C3=A7alves?= To: "Maxime Ripard" From: "Luca Ceresoli" X-Mailer: aerc 0.20.1 References: <20251112-drm-bridge-atomic-vs-remove-v3-0-85db717ce094@bootlin.com> <546bc098a35360c659b6dfb88d5cb451@kernel.org> In-Reply-To: <546bc098a35360c659b6dfb88d5cb451@kernel.org> X-Last-TLS-Session-Version: TLSv1.3 Hi Maxime, +Cc Emanuele, Francesco, Jo=C3=A3o On Thu Nov 27, 2025 at 7:35 PM CET, Maxime Ripard wrote: > On Wed, 12 Nov 2025 17:34:33 +0100, Luca Ceresoli wrote: >> This is a first attempt at gracefully handling the case of atomic update= s >> happening concurrently to physical removal of DRM bridges. >> >> This is part of the work to support hotplug of DRM bridges. The grand pl= an >> was discussed in [1]. >> >> [ ... ] > > Reviewed-by: Maxime Ripard Thanks for reviewing! Two alternative patches [0][1] have been sent to address the issue with PLL_UNLOCK, and both would conflict with patch 2 of this series. So I'd keep this series on hold for a while, waiting for a decision to be taken about how the PLL_UNLOCK issue will be handled. I'll then rebase this series as needed. [0] https://lore.kernel.org/lkml/20251127-drm-ti-sn65dsi83-ignore-pll-unloc= k-v1-1-8a03fdf562e9@bootlin.com/ [1] https://lore.kernel.org/lkml/20251125103900.31750-1-francesco@dolcini.i= t/ Luca -- Luca Ceresoli, Bootlin Embedded Linux and Kernel engineering https://bootlin.com