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c=relaxed/relaxed; s=zohomail; d=collabora.com; v=1; bh=ypx4hXwAoSBembIh9H3n5W3lgXyJZPIzRQD4Em4Bl4Q=; h=Content-Description:Content-ID:Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Owner:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Resent-Sender:Resent-Cc:Resent-Date:Resent-To:Reply-To:Resent-Message-ID:Resent-From:Sender:Subject:To:Date:From:Message-Id:Reply-To:Subject:To:Cc; Received: by smtp.zohomail.com with SMTPS id 1794687991847956.7695221547046; Sat, 14 Nov 2026 12:26:31 -0800 (PST) From: Nicolas Frattaroli To: aiyengar1990@gmail.com, Arun Iyengar Cc: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Boris Brezillon Subject: Re: [PATCH v2] drm/bridge: Fail an unsatisfiable bus format negotiation with -EINVAL Date: Sat, 14 Nov 2026 21:26:26 +0100 Message-ID: In-Reply-To: References: <20261111-drm-bridge-busfmt-einval-v2-1-fbb74905614b@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" On Friday, 13 November 2026 21:27:43 Central European Standard Time Arun Iyengar wrote: > A correction to the commit message: the DW DP example cannot happen on > mainline. No DisplayPort bridge connector has the "color format" > property, so "userspace now hits this routinely" is wrong; I hit it > with a dw-dp change that is not posted. > > On mainline, -ENOTSUPP still reaches userspace from a chain with no > common bus format, as in drm_test_bridge_rgb_yuv_no_path(). The code is > unchanged; I can send a v3 with the message corrected. > > Arun > While you're at it, dramatically trim the amount of yapping. Just because your LLM wrote a long text doesn't mean we want to read it.