From patchwork Thu Dec 7 19:34:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 13483898 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b="hIZmxiON" Received: from EUR03-DBA-obe.outbound.protection.outlook.com (mail-dbaeur03on2073.outbound.protection.outlook.com [40.107.104.73]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8FCEC10EF; Thu, 7 Dec 2023 11:35:13 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=c6OVz3C7Af4n+P9GQkg34AnCKTHOjDlGs7o8BzYlsg654Sy9dFUWZl+sTmkkYph4VI7+V8CtrGkGGIl/LV/ngWFdq34FTvZ/fWeWBRFRXkB8+f3OSewK+d7mOKgSKqeD6WMo3PtjsnflDGvTYzuHf2vlvehxbxCQ6gA58BKzXtSGd74AcjjTs3an/F6JQQFKMmkgpI0B1IIONZ1qrmQaDYEW7Mc1WdKLC0RcQlIYunO0iAQUuQat7VaWQVs0+kZWNVUZFQzGNplpwQePrtytN890vTcIOtr2up2gco5pMI2fK8Rm8xy9FiBZ9ckOE6+XxzAAOKinLtqjxHv2aAPblw== ARC-Message-Signature: i=1; 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b=hIZmxiONyJeeneS436du8QaRY6W3Xt8GNZIoUPJPpV8vD3jz3l8sBptAj9MGYkaQr523+KxRaeYAv7Rd18ryaLLMkC+bbdKMub4XZlpt1cAaC/J16kfTyNTETOVZ08t5wMXNP1PNreu9d2JlV3F2vOnqzPAu4+nAWy9+sEppG2k= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) by DU0PR04MB9635.eurprd04.prod.outlook.com (2603:10a6:10:31f::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7068.27; Thu, 7 Dec 2023 19:35:11 +0000 Received: from AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::95f5:5118:258f:ee40]) by AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::95f5:5118:258f:ee40%6]) with mapi id 15.20.7068.026; Thu, 7 Dec 2023 19:35:11 +0000 From: Frank Li To: helgaas@kernel.org, manivannan.sadhasivam@linaro.org Cc: Frank.li@nxp.com, bhelgaas@google.com, conor+dt@kernel.org, devicetree@vger.kernel.org, festevam@gmail.com, hongxing.zhu@nxp.com, imx@lists.linux.dev, kernel@pengutronix.de, krzysztof.kozlowski+dt@linaro.org, kw@linux.com, l.stach@pengutronix.de, linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, lpieralisi@kernel.org, robh@kernel.org, s.hauer@pengutronix.de, shawnguo@kernel.org Subject: [PATCH v2 4/9] PCI: imx6: Using "linux,pci-domain" as slot ID Date: Thu, 7 Dec 2023 14:34:25 -0500 Message-Id: <20231207193430.431994-5-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231207193430.431994-1-Frank.Li@nxp.com> References: <20231207193430.431994-1-Frank.Li@nxp.com> X-ClientProxiedBy: SJ0PR03CA0348.namprd03.prod.outlook.com (2603:10b6:a03:39c::23) To AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB4838:EE_|DU0PR04MB9635:EE_ X-MS-Office365-Filtering-Correlation-Id: 64a12733-ad45-45de-8714-08dbf75ba09d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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If there are more than 2 slots, compared logic will become complex. Signed-off-by: Frank Li --- Notes: Change from v1 to v2 - fix of_get_pci_domain_nr return value check logic drivers/pci/controller/dwc/pci-imx6.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 509d459bdc5a1..548034151ee1a 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -33,6 +33,7 @@ #include #include +#include "../../pci.h" #include "pcie-designware.h" #define IMX8MQ_GPR_PCIE_REF_USE_PAD BIT(9) @@ -1327,6 +1328,12 @@ static int imx6_pcie_probe(struct platform_device *pdev) "Failed to get PCIEPHY reset control\n"); } + /* Using linux,pci-domain as PCI slot id */ + imx6_pcie->controller_id = of_get_pci_domain_nr(node); + /* If there are not "linux,pci-domain" in dts file, means only 1 controller */ + if (imx6_pcie->controller_id < 0) + imx6_pcie->controller_id = 0; + switch (imx6_pcie->drvdata->variant) { case IMX7D: if (dbi_base->start == IMX8MQ_PCIE2_BASE_ADDR)