From nobody Thu Apr 2 00:12:58 2026 Received: from mxout70.expurgate.net (mxout70.expurgate.net [194.37.255.70]) (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 399093CF046; Wed, 1 Apr 2026 09:31:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.37.255.70 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775035918; cv=none; b=HetohPlnfm3km/DRFnb8hrUJTNpKkHZCpRes5KnLKzv2q68P4sig4s+A2URYQGS7EzOnJa9QROxCnWqfHODMBzoG5GHdg1rj06row0KT3fXUzv5++MfNK8ybFbwr9hO9qDppjokS+UrrFiWyWVbSCutdA9z+UTPpOgROKHxLIsA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775035918; 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=oGOOmUPToeVunW7atHh7VXP2dmkONOGH5HEkbWY2BSFfRFBNcfQHgY7OkdfkC524u1tUCBDNyEMxqZLhhQ4jRfYLv9ERo6sorQfPYVvhznj5Q0DaMUyhjTLBO0/B54U3lITEKd3m8M4+BZadAIpLSiERLZu+ON3YJNUYb4cLbq8= 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=gOwDpT4q; arc=none smtp.client-ip=194.37.255.70 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="gOwDpT4q" Received: from [194.37.255.9] (helo=mxout.expurgate.net) by relay.expurgate.net with smtp (Exim 4.92) (envelope-from ) id 1w7rvM-001Szr-PT; Wed, 01 Apr 2026 11:31:44 +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 1w7rvM-00CBEM-7W; Wed, 01 Apr 2026 11:31:44 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dev.tdt.de; s=z1-selector1; t=1775035903; bh=3A2J+2MFklTaE6h9BZznlvghg/HLXg4vKOLkKJTaKbc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=gOwDpT4qmA/i4sziFVLw/dUcUMkyGbY5MvhMTnFBSqctDw1rKckGyyuazrHPysRFq Jum4m8g/jW/f1VT9S9DfkgHxTKMpRO8saVKIXpv3gGrVzm1uL2CjdayAtQbLih6qXI uJd8snCMnj1M2JugfKlOjbLkL+i5NCdl3qc6LESKrvgo+7OnyKAw5HWMLSBk75OPwN ch/ZfVDWkL+bc6C65IkUa3ISVrUFSLO96/+H7MeSFgQ8FVigcPWy9bReGMC58PxG3h U0ExqbKsoHuvrrJ4iY/rT74BBOVoFcEYdzwSXJEXCbQ4I6Wc6cduNQxWBiUHBiKdk6 5+5BhNsAQ145g== Received: from securemail.tdt.de (localhost [127.0.0.1]) by securemail.tdt.de (Postfix) with ESMTP id C62E6240046; Wed, 1 Apr 2026 11:31:43 +0200 (CEST) Received: from mail.dev.tdt.de (unknown [10.2.4.42]) by securemail.tdt.de (Postfix) with ESMTP id BB256240041; Wed, 1 Apr 2026 11:31:43 +0200 (CEST) Received: from [10.2.3.40] (unknown [10.2.3.40]) by mail.dev.tdt.de (Postfix) with ESMTPSA id 956B123C7E; Wed, 1 Apr 2026 11:31:43 +0200 (CEST) From: Florian Eckert Date: Wed, 01 Apr 2026 11:31:41 +0200 Subject: [PATCH v3 5/7] PCI: intel-gw: Add start_link callback function 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="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20260401-pcie-intel-gw-v3-5-63b008c5b7b2@dev.tdt.de> References: <20260401-pcie-intel-gw-v3-0-63b008c5b7b2@dev.tdt.de> In-Reply-To: <20260401-pcie-intel-gw-v3-0-63b008c5b7b2@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 , Rahul Tanwar 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=1775035902; l=3153; i=fe@dev.tdt.de; s=20260205; h=from:subject:message-id; bh=1QhwwO0tMMhb5/PF/9cK8bvzkNyUt/Wf2sydrtsZXUc=; b=R0SlFWwKBmTvsj+uWe29f0bFOcUZ3aaui1f4slpL69Yzhec/iV1C5JcYguj/tAZlOBzsHgrGw 7AuOwZbgUEwDlrkbIPmFBCUa9PP2Xb0GGRi17WpPBktl8qKpFNldbfH X-Developer-Key: i=fe@dev.tdt.de; a=ed25519; pk=q7Pvv3Au2sAVRhBz5UF7ZqUPNxUwXQ78Jdqu8E6Negk= X-purgate-type: clean X-purgate: clean X-purgate-ID: 151534::1775035904-4B7CE233-00E17F81/0/0 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..0x00ddff= ffff -> 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..0x00cfff= ffff -> 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 st= arted"") 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/contr= oller/dwc/pcie-intel-gw.c index 6d9499d954674a26a74bff56b7fb5759767424c0..afd933050c92ee31c477e0b1738= ab1136bdcfbf6 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 *pci= e) pcie_rc_cfg_wr_mask(pcie, PCI_COMMAND, PCI_COMMAND_MEMORY, 0); } =20 +static int intel_pcie_start_link(struct dw_pcie *pci) +{ + struct intel_pcie *pcie =3D 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 *p= cie) intel_pcie_link_setup(pcie); intel_pcie_init_n_fts(pci); =20 - ret =3D dw_pcie_setup_rc(&pci->pp); - if (ret) - goto err; - dw_pcie_upconfig_setup(pci); =20 - intel_pcie_device_rst_deassert(pcie); - intel_pcie_ltssm_enable(pcie); - - ret =3D dw_pcie_wait_for_link(pci); - if (ret) - goto err; - intel_pcie_core_irq_enable(pcie); =20 return 0; =20 -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) } =20 static const struct dw_pcie_ops intel_pcie_ops =3D { + .start_link =3D intel_pcie_start_link, }; =20 static const struct dw_pcie_host_ops intel_pcie_dw_ops =3D { --=20 2.47.3