From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mxout70.expurgate.net (mxout70.expurgate.net [91.198.224.70]) (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 7E9873AD527; Wed, 15 Apr 2026 08:19:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.198.224.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776241146; cv=none; b=P64wS3tEyh1ivwe6eBwKGCImcEqRTxHSYpfoUjNOtlBq/flmpNYxHJk3Po9sD/f7lDUzdCNFc977bhRgqm4IiWyP7osCn+I0E7FNKNlGtDPlkubhdJy45R/OqHzm43ajjaAsgauQopUCx/MHGaLQi6eozBWm/SThDNm5d14gwfk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776241146; c=relaxed/simple; bh=1QhwwO0tMMhb5/PF/9cK8bvzkNyUt/Wf2sydrtsZXUc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:Cc; b=W40Sjyg3GC3wNnDf1SFeSHQ1YAhX0mHAPeBzTV/08htdOiVaSbYhoW0n2Tfhwj/gsXOZK67nlsAtoTtzjjooBt5ftnCQJoSd+FKi0y5UBzkguKoXdkMKzHtAriqlMWuSkl5ZW8HArlt5v7yCiEvgAiTYhcfvNBRmHs/8g6NjAGc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dev.tdt.de; spf=pass smtp.mailfrom=dev.tdt.de; dkim=temperror (0-bit key) header.d=dev.tdt.de header.i=@dev.tdt.de header.b=WVp/r6yu; arc=none smtp.client-ip=91.198.224.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dev.tdt.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dev.tdt.de Authentication-Results: smtp.subspace.kernel.org; dkim=temperror (0-bit key) header.d=dev.tdt.de header.i=@dev.tdt.de header.b="WVp/r6yu" Received: from [194.37.255.9] (helo=mxout.expurgate.net) by relay.expurgate.net with smtp (Exim 4.92) (envelope-from ) id 1wCvC7-00BwXO-RI; Wed, 15 Apr 2026 10:01:55 +0200 Received: from [195.243.126.94] (helo=securemail.tdt.de) by relay.expurgate.net with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1wCvC7-003sdd-9N; Wed, 15 Apr 2026 10:01:55 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dev.tdt.de; s=z1-selector1; t=1776240114; bh=3A2J+2MFklTaE6h9BZznlvghg/HLXg4vKOLkKJTaKbc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=WVp/r6yuM+8liV0iBHcJkduZI7Ed7rwtZ2yntqBxD0cHSzGPcwpqolOp/nadP3e63 hmBEafbvb6ZR+MADq9xuBIFas3yJfQIG0vEQcz104lwQzzn0dbNSPqlTwDJZXcXFNI 9G9E1gqjR9EoaZKDfxwWZJqkQa/R40mS+ZePgtPlswz9W8OyKJXlA7tBj722j0HzUJ Q7AZruP02RCGuBnCXAVH3144gaqahuLr24oIqW2wFLpVxIzymYqUAVz5snDg3bchDl TrWbzpBao4U7BNZtLwDFofOORzf1KkxzHGfzlpsdj9VN+3M3pe5d6M/4wH0Uwe3QMh LbCBo9p5eu5BA== Received: from securemail.tdt.de (localhost [127.0.0.1]) by securemail.tdt.de (Postfix) with ESMTP id DA1B6240040; Wed, 15 Apr 2026 10:01:54 +0200 (CEST) Received: from mail.dev.tdt.de (unknown [10.2.4.42]) by securemail.tdt.de (Postfix) with ESMTP id D18E7240047; Wed, 15 Apr 2026 10:01:54 +0200 (CEST) Received: from [10.2.3.40] (unknown [10.2.3.40]) by mail.dev.tdt.de (Postfix) with ESMTPSA id AEE4E24028; Wed, 15 Apr 2026 10:01:54 +0200 (CEST) From: Florian Eckert Date: Wed, 15 Apr 2026 10:01:51 +0200 (CEST) Subject: [PATCH v4 5/7] PCI: intel-gw: Add start_link callback function Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-ID: <20260415-pcie-intel-gw-v4-5-ad45d2418c8e@dev.tdt.de> References: <20260415-pcie-intel-gw-v4-0-ad45d2418c8e@dev.tdt.de> In-Reply-To: <20260415-pcie-intel-gw-v4-0-ad45d2418c8e@dev.tdt.de> To: Lorenzo Pieralisi , =?utf-8?Q?Krzysztof_Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Johan Hovold , Sajid Dalvi , Ajay Agarwal , Krzysztof Kozlowski , Conor Dooley Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Florian Eckert , Eckert.Florian@googlemail.com, ms@dev.tdt.de X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1776240111; l=3153; i=fe@dev.tdt.de; s=20260205; h=from:subject:message-id; bh=1QhwwO0tMMhb5/PF/9cK8bvzkNyUt/Wf2sydrtsZXUc=; b=xZWea6SKVdk8phIcykeaa/lhRj/xE1Y9ygqH+pY5UY96jz7IKdcP9cj7gN61L3J8+881a41Sc /PFBb6JmNuoDX1FbkB+JcTEbKiSEPrGm/QuV7y8lPzoIZJSkQ8EVhRO X-Developer-Key: i=fe@dev.tdt.de; a=ed25519; pk=q7Pvv3Au2sAVRhBz5UF7ZqUPNxUwXQ78Jdqu8E6Negk= X-purgate-type: clean X-purgate: clean X-purgate-ID: 151534::1776240115-FBFF42EC-C76EFE1C/0/0 The pcie-intel-gw driver has no start_link callback function. This commit adds the missing callback function so that the driver works again and does not abort with the following error messages during probing. [ 2.512015] intel-gw-pcie d1000000.pcie: host bridge /soc/pcie@d1000000 ranges: [ 2.517868] intel-gw-pcie d1000000.pcie: MEM 0x00dc000000..0x00ddffffff -> 0x00dc000000 [ 2.528450] intel-combo-phy d0c00000.combo-phy: Set combo mode: combophy[1]: mode: PCIe single lane mode [ 2.551619] intel-gw-pcie d1000000.pcie: No outbound iATU found [ 2.556060] intel-gw-pcie d1000000.pcie: Cannot initialize host [ 2.561901] intel-gw-pcie d1000000.pcie: probe with driver intel-gw-pcie failed with error -22 [ 2.571041] intel-gw-pcie c1100000.pcie: host bridge /soc/pcie@c1100000 ranges: [ 2.577736] intel-gw-pcie c1100000.pcie: MEM 0x00ce000000..0x00cfffffff -> 0x00ce000000 [ 2.588299] intel-combo-phy c0c00000.combo-phy: Set combo mode: combophy[3]: mode: PCIe single lane mode [ 2.611471] intel-gw-pcie c1100000.pcie: No outbound iATU found [ 2.615934] intel-gw-pcie c1100000.pcie: Cannot initialize host [ 2.621759] intel-gw-pcie c1100000.pcie: probe with driver intel-gw-pcie failed with error -22 Fixes: c5097b9869a1 ("Revert "PCI: dwc: Wait for link up only if link is started"") Fixes: da56a1bfbab5 ("PCI: dwc: Wait for link up only if link is started") Signed-off-by: Florian Eckert --- drivers/pci/controller/dwc/pcie-intel-gw.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-intel-gw.c b/drivers/pci/controller/dwc/pcie-intel-gw.c index 6d9499d954674a26a74bff56b7fb5759767424c0..afd933050c92ee31c477e0b1738ab1136bdcfbf6 100644 --- a/drivers/pci/controller/dwc/pcie-intel-gw.c +++ b/drivers/pci/controller/dwc/pcie-intel-gw.c @@ -284,6 +284,16 @@ static void intel_pcie_turn_off(struct intel_pcie *pcie) pcie_rc_cfg_wr_mask(pcie, PCI_COMMAND, PCI_COMMAND_MEMORY, 0); } +static int intel_pcie_start_link(struct dw_pcie *pci) +{ + struct intel_pcie *pcie = dev_get_drvdata(pci->dev); + + intel_pcie_device_rst_deassert(pcie); + intel_pcie_ltssm_enable(pcie); + + return 0; +} + static int intel_pcie_host_setup(struct intel_pcie *pcie) { int ret; @@ -310,25 +320,12 @@ static int intel_pcie_host_setup(struct intel_pcie *pcie) intel_pcie_link_setup(pcie); intel_pcie_init_n_fts(pci); - ret = dw_pcie_setup_rc(&pci->pp); - if (ret) - goto err; - dw_pcie_upconfig_setup(pci); - intel_pcie_device_rst_deassert(pcie); - intel_pcie_ltssm_enable(pcie); - - ret = dw_pcie_wait_for_link(pci); - if (ret) - goto err; - intel_pcie_core_irq_enable(pcie); return 0; -err: - phy_exit(pcie->phy); phy_err: clk_disable_unprepare(pcie->core_clk); clk_err: @@ -386,6 +383,7 @@ static int intel_pcie_rc_init(struct dw_pcie_rp *pp) } static const struct dw_pcie_ops intel_pcie_ops = { + .start_link = intel_pcie_start_link, }; static const struct dw_pcie_host_ops intel_pcie_dw_ops = { -- 2.47.3