From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 4849F2D24A9 for ; Thu, 21 Aug 2025 13:29:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755782955; cv=none; b=MrttpwIQJzzbsvftMi3R/2Qz2JCRg9FfSbnsFsBCpdYXVFcOEeVMcNqEhmAhUhsJE+74Ff3/qB1NAZwth2O0VyfBJSIdVr5vOkX5d20EqS0bNxYwrDHfG6F4w64RCmuNKj/MAy+gB9hbnKbA3CWel+Gzd+BTwJ5zknxd/99zUGA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755782955; c=relaxed/simple; bh=4aqtLwsCjDmsiFdnVGd4dSpEELlBv2N3AuwUEMXlUmk=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=GYgeh7wJLfebOomYxaWWQ1sdy/CXb9eXz9PTRECTbkXS7kqkukXeV9M9p0CZxtZ7rjYO7+lfO1Pck+sWHma9qaJRdZrF4pj29hNgRkNy0yBMwQou53s9YmXkqHP4nvP+KGbm2K65r7RmqKT5PJDvxlTBSPAe3+ish2u4aHA11Ms= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=PSNZ20mc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="PSNZ20mc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AA381C4CEED; Thu, 21 Aug 2025 13:29:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755782955; bh=4aqtLwsCjDmsiFdnVGd4dSpEELlBv2N3AuwUEMXlUmk=; h=Subject:To:Cc:From:Date:From; b=PSNZ20mco/QfYxoqIULuHMNg4SCSNxC10ogiv5ohAmKQ/napFvUvmhIYkVfdSVs4J eIrsfncLN5hdNpJaqADLoDA7FEEG8Hm0tdIzNlq+NCfvzsRRdhw3DoXvZwdyxMmsiZ Enf4QFrkBsAjvjapPRT9uEPzHhBgv5dfd8HFKqjU= Subject: FAILED: patch "[PATCH] PCI: imx6: Delay link start until configfs 'start' written" failed to apply to 6.6-stable tree To: hongxing.zhu@nxp.com,Frank.Li@nxp.com,bhelgaas@google.com,mani@kernel.org Cc: From: Date: Thu, 21 Aug 2025 15:29:11 +0200 Message-ID: <2025082111-relock-troubling-f45c@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 2e6ea70690ddd1ffa422423fd0d4523e4dfe4b62 # git commit -s git send-email --to '' --in-reply-to '2025082111-relock-troubling-f45c@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 2e6ea70690ddd1ffa422423fd0d4523e4dfe4b62 Mon Sep 17 00:00:00 2001 From: Richard Zhu Date: Wed, 9 Jul 2025 11:37:22 +0800 Subject: [PATCH] PCI: imx6: Delay link start until configfs 'start' written According to Documentation/PCI/endpoint/pci-endpoint-cfs.rst, the Endpoint controller (EPC) should only start the link when userspace writes '1' to the '/sys/kernel/config/pci_ep/controllers//start' attribute, which ultimately results in calling imx_pcie_start_link() via pci_epc_start_store(). To align with the documented behavior, do not start the link automatically when adding the EP controller. Fixes: 75c2f26da03f ("PCI: imx6: Add i.MX PCIe EP mode support") Signed-off-by: Richard Zhu [mani: reworded commit subject and description] Signed-off-by: Manivannan Sadhasivam [bhelgaas: commit log] Signed-off-by: Bjorn Helgaas Reviewed-by: Frank Li Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20250709033722.2924372-3-hongxing.zhu@nxp.com diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 240e080825bc..80e48746bbaf 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -1474,9 +1474,6 @@ static int imx_add_pcie_ep(struct imx_pcie *imx_pcie, pci_epc_init_notify(ep->epc); - /* Start LTSSM. */ - imx_pcie_ltssm_enable(dev); - return 0; }