From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 88DA9C624D6 for ; Wed, 2 Sep 2026 14:31:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Date:Message-Id:Subject:References:In-Reply-To:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=PeYlPvxj6C8sDizkaQcHGH0t51hRGjzyyZaVlzwVXG4=; b=WkXQXi05CSLsJTna5pSgKm9981 0kdpwNullv+HBpxo+fEMKLYrudGfe8blXsiCuHwOpYeefIAgbu/6GBexlKsDF5kDJsH/scDMhJqjg E+C8jcqk0f4AIyybqfkh3F756p4kmFVJ9EjW58GPwDS3xOdVl8Z0CFao6Pyq83iI8oeuttICvWLCz WAJP5Bad57ODUryd+m1gdiFrULPfsicFDMoEwPGuDxl3rf9U+hoyLnNs28VD+y05jC/y+g4/SNmwj nCFBrbd7RKPCyCBK/cGeOG6D3kVQAuPUnrrHJ2t7cMyUiR+h7sTJ8hBGAsYmPcvmRCZ7lthg9eGH3 o7jad24g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1lzq-0000000ExB5-3a4T; Wed, 02 Sep 2026 14:31:26 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1lzp-0000000ExAo-1QvQ for linux-arm-kernel@lists.infradead.org; Wed, 02 Sep 2026 14:31:25 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id C7297419C8; Wed, 2 Sep 2026 14:31:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 26C4D1F000E9; Wed, 2 Sep 2026 14:31:19 +0000 (UTC) From: Manivannan Sadhasivam To: Richard Zhu , Lucas Stach , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Michal Gorlas Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, linux-kernel@vger.kernel.org In-Reply-To: <20260827-l1-conditional-imx-v2-1-40b324aa2a94@9elements.com> References: <20260827-l1-conditional-imx-v2-1-40b324aa2a94@9elements.com> Subject: Re: [PATCH RESEND v2] PCI: imx6: Enable ASPM L1 only iff CLKREQ# is supported Message-Id: <178835947957.88571.7553170178358028044.b4-ty@b4> Date: Wed, 02 Sep 2026 16:31:19 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Mailer: b4 0.15.2 X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 27 Aug 2026 18:51:00 +0200, Michal Gorlas wrote: > Since commit f3ac2ff14834 ("PCI/ASPM: Enable all ClockPM and ASPM > states for devicetree platforms"), ASPM states are force enabled > on all devicetree platforms. This causes PCI devices on some i.MX SoCs > (for e.g. i.MX 8M Plus Kontron SMARC eval carrier) to enter L1 even > though CLKREQ# is not supported (and consequently supports-clkreq is > not set in pcie controller node of their DT), which causes the device to > never wake up from L1. > > [...] Applied, thanks! [1/1] PCI: imx6: Enable ASPM L1 only iff CLKREQ# is supported commit: 94420d27973f567e5c10b631115ea8b9abc0172e Best regards, -- மணிவண்ணன் சதாசிவம்