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b=a6opdY4yK0msxpc2ZmZaGNtNv5E+oWoD/aWDGcPTvzrmSbKYtoWifD1HsJvEfHYklSpK2zi5yMzKMlX8W4Cq2VuZgJJUSqzkyfOvwIpTWzLWiNYwkRm0AkkBVr7Gt8vVJTQBkGQrbvDU1NeuZs25loaU3ks2X3jPe2yynxWYPY8= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) by PA4PR04MB9688.eurprd04.prod.outlook.com (2603:10a6:102:271::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7202.24; Fri, 19 Jan 2024 17:11:54 +0000 Received: from PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::b8af:bfe5:dffd:59a9]) by PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::b8af:bfe5:dffd:59a9%4]) with mapi id 15.20.7202.020; Fri, 19 Jan 2024 17:11:54 +0000 From: Frank Li To: manivannan.sadhasivam@linaro.org Cc: Frank.Li@nxp.com, bhelgaas@google.com, conor+dt@kernel.org, devicetree@vger.kernel.org, festevam@gmail.com, helgaas@kernel.org, hongxing.zhu@nxp.com, imx@lists.linux.dev, kernel@pengutronix.de, krzysztof.kozlowski+dt@linaro.org, krzysztof.kozlowski@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 v9 02/16] PCI: imx6: Simplify phy handling by using IMX6_PCIE_FLAG_HAS_PHYDRV Date: Fri, 19 Jan 2024 12:11:08 -0500 Message-Id: <20240119171122.3057511-3-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240119171122.3057511-1-Frank.Li@nxp.com> References: <20240119171122.3057511-1-Frank.Li@nxp.com> X-ClientProxiedBy: BY5PR20CA0023.namprd20.prod.outlook.com (2603:10b6:a03:1f4::36) To PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) 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: PAXPR04MB9642:EE_|PA4PR04MB9688:EE_ X-MS-Office365-Filtering-Correlation-Id: 20663744-fcbd-4ffe-059a-08dc1911bc1a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 20663744-fcbd-4ffe-059a-08dc1911bc1a X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB9642.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Jan 2024 17:11:54.2131 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: P0RQtp2+AUuPUUQNyNlncGAFHNOz7Yr1tUNZTe674/Rta/dKS6B5EYoQGgFRvazpg/YxzzH/HyiFs0UdHnsMvA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PA4PR04MB9688 Since some i.MX platforms make use of the separate PHY driver, use IMX6_PCIE_FLAG_HAS_PHYDRV flag to identify them and get the reference to PHY from DT. This simplifies the code. Reviewed-by: Manivannan Sadhasivam Signed-off-by: Frank Li --- Notes: Change from v8 to v9: - change commit message according Manivannan's suggestion - Add Manivannan's review tag Change from v7 to v8: - renmae IMX6_PCIE_FLAG_HAS_PHY to IMX6_PCIE_FLAG_HAS_PHYDRV Change from v6 to v7: - none Change from v4 to v5: - none, Keep IMX6_PCIE_FLAG_HAS_PHY to indicate dts mismatch when platform require phy suppport. Change from v1 to v3: - none drivers/pci/controller/dwc/pci-imx6.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 0997dd7d901a4..a33ec006660c8 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -60,6 +60,9 @@ enum imx6_pcie_variants { #define IMX6_PCIE_FLAG_IMX6_PHY BIT(0) #define IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE BIT(1) #define IMX6_PCIE_FLAG_SUPPORTS_SUSPEND BIT(2) +#define IMX6_PCIE_FLAG_HAS_PHYDRV BIT(3) + +#define imx6_check_flag(pci, val) (pci->drvdata->flags & val) #define IMX6_PCIE_MAX_CLKS 6 @@ -1277,6 +1280,13 @@ static int imx6_pcie_probe(struct platform_device *pdev) if (ret) return ret; + if (imx6_check_flag(imx6_pcie, IMX6_PCIE_FLAG_HAS_PHYDRV)) { + imx6_pcie->phy = devm_phy_get(dev, "pcie-phy"); + if (IS_ERR(imx6_pcie->phy)) + return dev_err_probe(dev, PTR_ERR(imx6_pcie->phy), + "failed to get pcie phy\n"); + } + switch (imx6_pcie->drvdata->variant) { case IMX7D: if (dbi_base->start == IMX8MQ_PCIE2_BASE_ADDR) @@ -1306,11 +1316,6 @@ static int imx6_pcie_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(imx6_pcie->apps_reset), "failed to get pcie apps reset control\n"); - imx6_pcie->phy = devm_phy_get(dev, "pcie-phy"); - if (IS_ERR(imx6_pcie->phy)) - return dev_err_probe(dev, PTR_ERR(imx6_pcie->phy), - "failed to get pcie phy\n"); - break; default: break; @@ -1454,14 +1459,17 @@ static const struct imx6_pcie_drvdata drvdata[] = { }, [IMX8MM] = { .variant = IMX8MM, - .flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND, + .flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND | + IMX6_PCIE_FLAG_HAS_PHYDRV | + IMX6_PCIE_FLAG_HAS_APP_RESET, .gpr = "fsl,imx8mm-iomuxc-gpr", .clk_names = imx8mm_clks, .clks_cnt = ARRAY_SIZE(imx8mm_clks), }, [IMX8MP] = { .variant = IMX8MP, - .flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND, + .flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND | + IMX6_PCIE_FLAG_HAS_PHYDRV, .gpr = "fsl,imx8mp-iomuxc-gpr", .clk_names = imx8mm_clks, .clks_cnt = ARRAY_SIZE(imx8mm_clks), @@ -1475,6 +1483,7 @@ static const struct imx6_pcie_drvdata drvdata[] = { }, [IMX8MM_EP] = { .variant = IMX8MM_EP, + .flags = IMX6_PCIE_FLAG_HAS_PHYDRV, .mode = DW_PCIE_EP_TYPE, .gpr = "fsl,imx8mm-iomuxc-gpr", .clk_names = imx8mm_clks, @@ -1482,6 +1491,7 @@ static const struct imx6_pcie_drvdata drvdata[] = { }, [IMX8MP_EP] = { .variant = IMX8MP_EP, + .flags = IMX6_PCIE_FLAG_HAS_PHYDRV, .mode = DW_PCIE_EP_TYPE, .gpr = "fsl,imx8mp-iomuxc-gpr", .clk_names = imx8mm_clks,