From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-m21467.qiye.163.com (mail-m21467.qiye.163.com [117.135.214.67]) (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 D9F123019A9; Fri, 24 Oct 2025 08:12:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.214.67 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761293582; cv=none; b=tQ1E5UA4dyL8WkCTWDAHgNgd9pCu5BfgGFtJtUw8p1vtL5+roHb04SbchGSMF3k2zf1u323JuOmh/Yh5QcTWQdVPeBxx3cHfTD3jyQaJZqlSDsVgPRvGhrKFAxbc8H9+SrRk9rbHx2Ux/L58YHb0D0ngFG2tdxjDOiNw/LZcGMw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761293582; c=relaxed/simple; bh=X8eEYQQ4MNkto2esE9lEJmHcm1ClymqxfAWV5cW50Lg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=rDuXFVO49RLl/+P6z98oy7hZ0beXFCC+d3xTlAdurUC+JKdPyVyACFvrkVO23aFsgxqIrrGF/jDg4P7PIlgb9h1vdxyGkWjKtFDdJR2A6jNuYA7RmWIu2paLjMC9kmedfh/w1eFpfItmGjtcrHre/R1pBvtgivNF8X+jE1AIqO8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rock-chips.com; spf=pass smtp.mailfrom=rock-chips.com; dkim=pass (1024-bit key) header.d=rock-chips.com header.i=@rock-chips.com header.b=cbh7z5oM; arc=none smtp.client-ip=117.135.214.67 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rock-chips.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rock-chips.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=rock-chips.com header.i=@rock-chips.com header.b="cbh7z5oM" Received: from [172.16.12.149] (unknown [58.22.7.114]) by smtp.qiye.163.com (Hmail) with ESMTP id 270f1f398; Fri, 24 Oct 2025 16:12:48 +0800 (GMT+08:00) Message-ID: <9ec2189e-ec36-4cd8-9713-beb490b8297c@rock-chips.com> Date: Fri, 24 Oct 2025 16:12:47 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 2/9] drm/bridge: Implement generic USB Type-C DP HPD bridge To: Heikki Krogerus Cc: Greg Kroah-Hartman , Dmitry Baryshkov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , Kishon Vijay Abraham I , Heiko Stuebner , Sandy Huang , Andy Yan , Yubing Zhang , Frank Wang , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Amit Sunil Dhamne , Dragan Simic , Johan Jonker , Diederik de Haas , Peter Robinson , linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org References: <20251023033009.90-1-kernel@airkyi.com> <20251023033009.90-3-kernel@airkyi.com> <14b8ac71-489b-4192-92d6-5f228ff3881d@rock-chips.com> <6f769567-b383-4c79-b441-3dd84f21cdae@rock-chips.com> Content-Language: en-US From: Chaoyi Chen In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-HM-Tid: 0a9a1547081303abkunmae71b56b2f4984 X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFDSUNOT01LS0k3V1ktWUFJV1kPCRoVCBIfWUFZQh9PTFYYHU8YGkNDQx0ZTx9WFRQJFh oXVRMBExYaEhckFA4PWVdZGBILWUFZTkNVSUlVTFVKSk9ZV1kWGg8SFR0UWUFZT0tIVUpLSEtNQk tVSktLVUpCWQY+ DKIM-Signature: a=rsa-sha256; b=cbh7z5oMnHR/DLqyOIDZk4K7gXmeu0Z/ewCxVZLD2lfh51kbnP5gwdZNZ7a3inVN4NoC/E/hL4XmvOdj5FQ0/XmmJ78CkfSevEhzvOTjQ9VpmomjoQ1rpjyzol1iXhudUcEI++95744VHFl5SRJlcN0jA2NbRp7MwZ9xcoa3t1g=; s=default; c=relaxed/relaxed; d=rock-chips.com; v=1; bh=k9PZlmFs4+G6V09YuUs38/TEsI+fOADgB825HrzHznU=; h=date:mime-version:subject:message-id:from; On 10/24/2025 3:36 PM, Heikki Krogerus wrote: >> Another thing is that CONFIG_DRM_AUX_HPD_BRIDGE originally needed to be >> selected by other modules. With this change, we also need to expose it in >> Kconfig. > Sorry, I don't understand the problem here? What do you need to expose > in Kconfig? config DRM_AUX_HPD_BRIDGE     tristate     depends on DRM_BRIDGE && OF     select AUXILIARY_BUS     help       Simple bridge that terminates the bridge chain and provides HPD       support. The tristate here is empty, so now it can only be selected by some TypeC controller drivers. I think it's not a big deal, just expose this item. > > thanks, > -- Best, Chaoyi