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GET /api/patches/2215807/?format=api
{ "id": 2215807, "url": "http://patchwork.ozlabs.org/api/patches/2215807/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260325110058.2854742-2-sherry.sun@nxp.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260325110058.2854742-2-sherry.sun@nxp.com>", "list_archive_url": null, "date": "2026-03-25T11:00:51", "name": "[1/8] PCI: imx6: Integrate new pwrctrl API for pci-imx6", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "26f827f52fe11bb3903aad9f1a05b24d6ed9b53f", "submitter": { "id": 77063, "url": "http://patchwork.ozlabs.org/api/people/77063/?format=api", "name": "Sherry Sun", "email": "sherry.sun@nxp.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260325110058.2854742-2-sherry.sun@nxp.com/mbox/", "series": [ { "id": 497418, "url": "http://patchwork.ozlabs.org/api/series/497418/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=497418", "date": "2026-03-25T11:00:50", "name": "PCI: imx6: Integrate pwrctrl API and update device trees", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497418/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2215807/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2215807/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-51041-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ 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], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=hfbs++LmFD5hYL733QHlHoNKtAt+15CrwJzRfB8lvX0=;\n b=FYYS6CYTb4NINWRwGGP2l+V/YPWK5iKnudO57j+OwRVE9yY42dcYUBvjaiHe/IYI0rzOxzWucN3HW0b2jvMcaXb6l4UY2cHaKcHy2cvUY3nPoiFngjcwOxChPQ/QocGcWrpDedi2UT4WQWoh8l6Ak4wkrqQQnEERd9B0QzGq688zn6oyChCizDEwAd2WyDgkFkhW00qU6loElMi/IOuc1sj/MAvYTs9bZUdGmxzFw13ItAAB24ezPNaPUrqCEyspTS4PY8mSj9JFgspaZrJw0Ste7jm5vjRWAfsrOu0QDmI5/41On/GQdNCRfArsXVB+m1CvKMo13lh37IibXiYErQ==", "From": "Sherry Sun <sherry.sun@nxp.com>", "To": "robh@kernel.org,\n\tkrzk+dt@kernel.org,\n\tconor+dt@kernel.org,\n\tFrank.Li@nxp.com,\n\ts.hauer@pengutronix.de,\n\tkernel@pengutronix.de,\n\tfestevam@gmail.com,\n\tlpieralisi@kernel.org,\n\tkwilczynski@kernel.org,\n\tmani@kernel.org,\n\tbhelgaas@google.com,\n\thongxing.zhu@nxp.com,\n\tl.stach@pengutronix.de", "Cc": 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"X-OriginatorOrg": "nxp.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 708019a6-5ed3-4434-713e-08de8a5dbff4", "X-MS-Exchange-CrossTenant-AuthSource": "VI0PR04MB12114.eurprd04.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "25 Mar 2026 11:00:39.1459\n (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": "\n 856Gtynen1nIOmYR/ANmgLe4LeHwGHGm+vsOkX1oX/dpWY26eu57qA1GUgJd4jiZcPYT+U5ugnNR6EhX8QgbdA==", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "GVXPR04MB12268" }, "content": "Integrate the PCI pwrctrl framework into the pci-imx6 driver to provide\nstandardized power management for PCIe devices.\n\nLegacy regulator handling (vpcie-supply at controller level) is\nmaintained for backward compatibility with existing device trees.\nNew device trees should specify power supplies at the Root Port\nlevel to utilize the pwrctrl framework.\n\nSigned-off-by: Sherry Sun <sherry.sun@nxp.com>\n---\n drivers/pci/controller/dwc/Kconfig | 1 +\n drivers/pci/controller/dwc/pci-imx6.c | 23 ++++++++++++++++++++++-\n 2 files changed, 23 insertions(+), 1 deletion(-)", "diff": "diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig\nindex f2fde13107f2..327b0dc65550 100644\n--- a/drivers/pci/controller/dwc/Kconfig\n+++ b/drivers/pci/controller/dwc/Kconfig\n@@ -114,6 +114,7 @@ config PCI_IMX6_HOST\n \tdepends on PCI_MSI\n \tselect PCIE_DW_HOST\n \tselect PCI_IMX6\n+\tselect PCI_PWRCTRL_GENERIC\n \thelp\n \t Enables support for the PCIe controller in the i.MX SoCs to\n \t work in Root Complex mode. The PCI controller on i.MX is based\ndiff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c\nindex 77483f44c593..b9d72793f266 100644\n--- a/drivers/pci/controller/dwc/pci-imx6.c\n+++ b/drivers/pci/controller/dwc/pci-imx6.c\n@@ -20,6 +20,7 @@\n #include <linux/of.h>\n #include <linux/of_address.h>\n #include <linux/pci.h>\n+#include <linux/pci-pwrctrl.h>\n #include <linux/platform_device.h>\n #include <linux/regmap.h>\n #include <linux/regulator/consumer.h>\n@@ -1314,6 +1315,7 @@ static int imx_pcie_host_init(struct dw_pcie_rp *pp)\n \t\t\treturn ret;\n \t}\n \n+\t/* Legacy regulator handling for DT backward compatibility. */\n \tif (imx_pcie->vpcie) {\n \t\tret = regulator_enable(imx_pcie->vpcie);\n \t\tif (ret) {\n@@ -1323,10 +1325,22 @@ static int imx_pcie_host_init(struct dw_pcie_rp *pp)\n \t\t}\n \t}\n \n+\tret = pci_pwrctrl_create_devices(dev);\n+\tif (ret) {\n+\t\tdev_err(dev, \"failed to create pwrctrl devices\\n\");\n+\t\tgoto err_reg_disable;\n+\t}\n+\n+\tret = pci_pwrctrl_power_on_devices(dev);\n+\tif (ret) {\n+\t\tdev_err(dev, \"failed to power on pwrctrl devices\\n\");\n+\t\tgoto err_pwrctrl_destroy;\n+\t}\n+\n \tret = imx_pcie_clk_enable(imx_pcie);\n \tif (ret) {\n \t\tdev_err(dev, \"unable to enable pcie clocks: %d\\n\", ret);\n-\t\tgoto err_reg_disable;\n+\t\tgoto err_pwrctrl_power_off;\n \t}\n \n \tif (pp->bridge && imx_check_flag(imx_pcie, IMX_PCIE_FLAG_HAS_LUT)) {\n@@ -1385,6 +1399,11 @@ static int imx_pcie_host_init(struct dw_pcie_rp *pp)\n \tphy_exit(imx_pcie->phy);\n err_clk_disable:\n \timx_pcie_clk_disable(imx_pcie);\n+err_pwrctrl_power_off:\n+\tpci_pwrctrl_power_off_devices(dev);\n+err_pwrctrl_destroy:\n+\tif (ret != -EPROBE_DEFER)\n+\t\tpci_pwrctrl_destroy_devices(dev);\n err_reg_disable:\n \tif (imx_pcie->vpcie)\n \t\tregulator_disable(imx_pcie->vpcie);\n@@ -1403,6 +1422,7 @@ static void imx_pcie_host_exit(struct dw_pcie_rp *pp)\n \t}\n \timx_pcie_clk_disable(imx_pcie);\n \n+\tpci_pwrctrl_power_off_devices(pci->dev);\n \tif (imx_pcie->vpcie)\n \t\tregulator_disable(imx_pcie->vpcie);\n }\n@@ -1911,6 +1931,7 @@ static void imx_pcie_shutdown(struct platform_device *pdev)\n \t/* bring down link, so bootloader gets clean state in case of reboot */\n \timx_pcie_assert_core_reset(imx_pcie);\n \timx_pcie_assert_perst(imx_pcie, true);\n+\tpci_pwrctrl_destroy_devices(&pdev->dev);\n }\n \n static const struct imx_pcie_drvdata drvdata[] = {\n", "prefixes": [ "1/8" ] }