From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (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 87581389DED for ; Tue, 3 Mar 2026 08:14:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772525685; cv=none; b=klLjghAilf43SACbTeHyIV0HOoyWKCRJHIT1AwLSEavxmHn49OvBsyZDMHFvjLq3ShNrccFmGdVI+Hj8Ts/ZCzso7TBUrSXSPKAbiPZuH/v1bzIcvDdJMuZhIFWIw1mmL9MYA2pPTZ3WYLGHitL3i3jqVfwDxBtOECfNMo11+mg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772525685; c=relaxed/simple; bh=Sig7A8dzv3ykz7IFcfIV7N8IocVLXKDEnhTUf2gPWGI=; h=From:To:Cc:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=dW3tLeruxc7aILl3IkV0Eollqig4Y0TBbqSwxNBndtpTN5Fwz3ft9uJPoeBuQEN6VyaCRQ0sEBoriX4riIxpaNvlchPXUWMoiB9DAZVH/8EiNUsHsFUutULIcIoP6YPLKsnRc0JW6ooOYE0dL+xzFl4drQ1lOv/QP4vdfPRR3MQ= 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=wFav8NOA; arc=none smtp.client-ip=185.171.202.116 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="wFav8NOA" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id D1898C40FA1; Tue, 3 Mar 2026 08:14:51 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 41FB15FF29; Tue, 3 Mar 2026 08:14:34 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 9A1E11036956C; Tue, 3 Mar 2026 09:14:28 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1772525673; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=AP13vgzwh3NW+FqntMYmrLkblrevrDIovoRMTTtQweg=; b=wFav8NOAzpXPRonYSvL8M5/XZkCA4FBc+4Jr54TGm23oXE7JQIxAFWchhws5JeQmajh6Kl S6hGKWPDmotTgvY/LClHnZuai+knrR+zdyGjE6NHAUTe/UnmvDm8OZ19xoXUf5yfzpt/FL gOCbGNjKJMtAju7YxcWZuqBhBThQJSd55hp/jI11FAEnnhIw8l6JDsYclBBLhopmdSXXr9 IhD1S0Q/cH3YH5NfOJnyVeg4xcS1NK8F21ECqyd8HABj/TLaYzAhdMJ41nYmtFOwgZWbMe O4cLP8Oms4l5BDAM+gaTkkEAoaeNqCCL5q4am3ua4IWaDmMeYhoe/wAMHVwzWQ== From: Luca Ceresoli To: dri-devel@lists.freedesktop.org, Marek Vasut Cc: Andrzej Hajda , David Airlie , Jernej Skrabec , Jonas Karlman , Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Neil Armstrong , Robert Foss , Simona Vetter , Thomas Zimmermann , linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org In-Reply-To: <20260206125801.78705-1-marek.vasut+renesas@mailbox.org> References: <20260206125801.78705-1-marek.vasut+renesas@mailbox.org> Subject: Re: [PATCH v2] drm/bridge: waveshare-dsi: Register and attach our DSI device at probe Message-Id: <177252566811.105892.7171788198806025494.b4-ty@bootlin.com> Date: Tue, 03 Mar 2026 09:14:28 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.3 X-Last-TLS-Session-Version: TLSv1.3 On Fri, 06 Feb 2026 13:57:53 +0100, Marek Vasut wrote: > In order to avoid any probe ordering issue, the best practice is to move > the secondary MIPI-DSI device registration and attachment to the > MIPI-DSI host at probe time. > > Besides solving the probe ordering problems, this makes the bridge work > with R-Car DU. The R-Car DU will attempt to locate the DSI host bridge in > its own rcar_du_probe()->rcar_du_modeset_init()->rcar_du_encoder_init() > by calling of_drm_find_bridge() which calls of_drm_find_and_get_bridge() > and iterates over bridge_list to locate the DSI host bridge. > > [...] Applied, thanks! [1/1] drm/bridge: waveshare-dsi: Register and attach our DSI device at probe commit: b8eb97ead862de7a321dd55a901542a372f8f1cd Best regards, -- Luca Ceresoli