From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sender4-op-o15.zoho.com (sender4-op-o15.zoho.com [136.143.188.15]) (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 25511348445; Fri, 27 Feb 2026 18:24:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.15 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772216683; cv=pass; b=izlILMXO/9KTzMIroIfAye+a/WBmUl5vnq4NEYeHgp/MSUybPgRksQ35nC8pRG6DKvd1QqPG88r0GIU4LatFEGEyVxcjAhjsQT+pGmDZkiQ22CId1ixbd0gCYh4KMdp1q8BHzIKoW70meQI9VRwjaXVZDGFTRRssYmEXcgiSg38= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772216683; c=relaxed/simple; bh=Ii3WkfOxQ6JChecRZKEDyLtaWP3XvgTOInRY7W3jkHM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=apBAfIa1qj/Svr+7vT8VA5Pie3tqxFbybMY97snrvaTOpLyurB85BoGKY7z1pO5LDWsu0gPKLH7tbcFVfL1VtGz0gPICoP0OL8dzXX7n1khr1GIK+12GHXCZDPrajOv6/HPBrXVqZkKVJvDzicMPrivBW96q474vhZVX6692Jac= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ziyao.cc; spf=pass smtp.mailfrom=ziyao.cc; dkim=pass (1024-bit key) header.d=ziyao.cc header.i=me@ziyao.cc header.b=Aqv6z4XH; arc=pass smtp.client-ip=136.143.188.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ziyao.cc Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ziyao.cc Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ziyao.cc header.i=me@ziyao.cc header.b="Aqv6z4XH" ARC-Seal: i=1; a=rsa-sha256; t=1772216664; cv=none; d=zohomail.com; s=zohoarc; b=Gah7o/1uWwo3IF2458yscMfz1xOlXVnJVRBa1xwaaFGJWZVZRhXsjs1UTgYy6kQEC3i8uW/1yxxh5GPlHo260Evl1+XoIHNOV75/vbBgQZhf2ORCM/nRaqDttgSO4GCGeVgTvC+5wKYFXf2OcKA5zjn2yhIeymd1I4T4A/z5YBA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1772216664; h=Content-Type:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=mI8yeyHAyhIcdue3vlH9m104I7N5rePgew2fh6OCLaw=; b=hQe+oUB3qGpra/qEQ4g6xDM0YAW8S9+Ej7w1YjhhPMkdgaSAY0R8+r2YCyeb55pShYK5XfEKSoMd4OkxlXN3FH6v2L8WvG+5FNDbbnIYP09KYILVn6onUtbm4crTXFCuC5eI7yssr5+2+bVnzflk8IiIf+pLyChdpdTDkS66qTk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=ziyao.cc; spf=pass smtp.mailfrom=me@ziyao.cc; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1772216664; s=zmail; d=ziyao.cc; i=me@ziyao.cc; h=Date:Date:From:From:To:To:Cc:Cc:Subject:Subject:Message-ID:References:MIME-Version:Content-Type:In-Reply-To:Message-Id:Reply-To; bh=mI8yeyHAyhIcdue3vlH9m104I7N5rePgew2fh6OCLaw=; b=Aqv6z4XHIjAYCP8xhwZpX9K4FnKem93HCPTtJGxwGwQGc6ovnlV3VzrAvHm6uHnI pVyBMVhpX+sA7krGlw1yCv1VIM5oetDJcyJH1n47494R7cCL+SeZ5ZJ9L6Ue1DoOQbK aTtF2qC4u0Xpprf73nVYZoUhxjrYNInuGd9+4L+c= Received: by mx.zohomail.com with SMTPS id 1772216662000130.63085640564987; Fri, 27 Feb 2026 10:24:22 -0800 (PST) Date: Fri, 27 Feb 2026 18:24:12 +0000 From: Yao Zi To: Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Siddharth Vadapalli , Hans Zhang <18255117159@163.com>, Kishon Vijay Abraham I , Chen Wang , Manikandan K Pillai , Christophe JAILLET , Inochi Amaoto , Han Gao Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/2] PCI: sg2042: Avoid L0s and L1 on Sophgo 2042 PCIe Root Ports Message-ID: References: <20260227181925.52475-1-me@ziyao.cc> <20260227181925.52475-3-me@ziyao.cc> 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=us-ascii Content-Disposition: inline In-Reply-To: <20260227181925.52475-3-me@ziyao.cc> X-ZohoMailClient: External On Fri, Feb 27, 2026 at 06:19:25PM +0000, Yao Zi wrote: > Since commit f3ac2ff14834 ("PCI/ASPM: Enable all ClockPM and ASPM > states for devicetree platforms") force enable ASPM on all device tree > platform, the SG2042 root port breaks as it advertises L0s and L1 > capabilities without supporting it. > > Provide a platform-specific initialization hook to override the L0s and > L1 support advertised in LNKCAP register of SG2042 Root Ports, so it > doesn't try to enable those states. > > Fixes: 4e27aca4881a ("riscv: sophgo: dts: add PCIe controllers for SG2042") > Co-authored-by: Inochi Amaoto Oops, this should be Co-developed-by instead of Co-authored-by, sorry for the silly mistake... > Signed-off-by: Inochi Amaoto > Signed-off-by: Yao Zi Regards, Yao Zi