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 6F84F35A3B6; Thu, 12 Mar 2026 20:14:17 +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=1773346457; cv=none; b=SXS2fwylbj225vDoHqEyuxLco6DdwAFtWSX2bEAuposkhFrhrqAK39g1Mzia+ufcT63a7C3+ZaHN+/KCgp0fqAxGN5zUbPHnAoVbEPVJh7nPJHmGRGuJz5QNCX+/WQ2OcVinenm25pV/+FN/ZxXi9W9K+ALiGlZcPYfpFyXkjK8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773346457; c=relaxed/simple; bh=ZZOioaStvFHkxyfEkFAsTd2s4E0hGRPTsrOmr0RDY5k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=P+MmIc4OjzL9t/yFJqY82KoK80vothaajbB4FFuE/zSkwPicyodlbzhkvgmVHhrQ/6TShcdZVePp06smEjlWgP/Xhznmurhg1TTKoeRvL05c+O1d1rbSgfBtqAtJh6cXiWxj6XOTejcJQNUy146Ko6FeEHyApZ4x1MDMrOI/usg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=x0Lt61BQ; 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="x0Lt61BQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BEF00C4CEF7; Thu, 12 Mar 2026 20:14:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1773346457; bh=ZZOioaStvFHkxyfEkFAsTd2s4E0hGRPTsrOmr0RDY5k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=x0Lt61BQ3TXy4lPl+32M5sLbPNWfOncrADRk0oSlcfXO5XohtmcnUP3PYOdt/Cb6d 6xG1RZRdrApdFudVJ7JS3uahizxJPhz8KCB2vQWXo/pRFcT1DmLb2Q3+huOKoFtkiL R/f3SJNvr39U5IwlYXH40mkGXbAO3dHmtSj2jojI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Krishna chaitanya chundru , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Bjorn Helgaas , Manivannan Sadhasivam , Niklas Cassel , Sasha Levin Subject: [PATCH 6.12 046/265] PCI: qcom: Dont wait for link if we can detect Link Up Date: Thu, 12 Mar 2026 21:07:13 +0100 Message-ID: <20260312201019.866430679@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260312201018.128816016@linuxfoundation.org> References: <20260312201018.128816016@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Krishna chaitanya chundru [ Upstream commit 36971d6c5a9a134c15760ae9fd13c6d5f9a36abb ] If we have a 'global' IRQ for Link Up events, we need not wait for the link to be up during PCI initialization, which reduces startup time. Check for 'global' IRQ, and if present, set 'use_linkup_irq', so dw_pcie_host_init() doesn't wait for the link to come up. Link: https://lore.kernel.org/r/20241123-remove_wait2-v5-2-b5f9e6b794c2@quicinc.com Signed-off-by: Krishna chaitanya chundru Signed-off-by: Krzysztof Wilczyński [bhelgaas: commit log] Signed-off-by: Bjorn Helgaas Reviewed-by: Manivannan Sadhasivam Reviewed-by: Niklas Cassel Stable-dep-of: e9ce5b380443 ("Revert "PCI: qcom: Don't wait for link if we can detect Link Up"") Signed-off-by: Sasha Levin --- drivers/pci/controller/dwc/pcie-qcom.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index 5d27cd149f512..0205c18d95a01 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -1696,6 +1696,10 @@ static int qcom_pcie_probe(struct platform_device *pdev) platform_set_drvdata(pdev, pcie); + irq = platform_get_irq_byname_optional(pdev, "global"); + if (irq > 0) + pp->use_linkup_irq = true; + ret = dw_pcie_host_init(pp); if (ret) { dev_err(dev, "cannot initialize host\n"); @@ -1709,7 +1713,6 @@ static int qcom_pcie_probe(struct platform_device *pdev) goto err_host_deinit; } - irq = platform_get_irq_byname_optional(pdev, "global"); if (irq > 0) { ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, qcom_pcie_global_irq_thread, -- 2.51.0