{"id":2219020,"url":"http://patchwork.ozlabs.org/api/patches/2219020/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260402095107.205439-12-sherry.sun@nxp.com/","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/projects/28/?format=json","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":"<20260402095107.205439-12-sherry.sun@nxp.com>","list_archive_url":null,"date":"2026-04-02T09:51:05","name":"[V10,11/13] arm64: dts: imx8mq: Add Root Port node and PERST property","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"4aeb9be7c34c8657dbafaf1b8c4af7321a90c570","submitter":{"id":77063,"url":"http://patchwork.ozlabs.org/api/people/77063/?format=json","name":"Sherry Sun","email":"sherry.sun@nxp.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260402095107.205439-12-sherry.sun@nxp.com/mbox/","series":[{"id":498458,"url":"http://patchwork.ozlabs.org/api/series/498458/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/list/?series=498458","date":"2026-04-02T09:50:55","name":"pci-imx6: Add support for parsing the reset property in new Root Port binding","version":10,"mbox":"http://patchwork.ozlabs.org/series/498458/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2219020/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2219020/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=nxp.com header.i=@nxp.com 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","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":"imx@lists.linux.dev,\n\tlinux-pci@vger.kernel.org,\n\tlinux-arm-kernel@lists.infradead.org,\n\tdevicetree@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org","Subject":"[PATCH V10 11/13] arm64: dts: imx8mq: Add Root Port node and PERST\n property","Date":"Thu, 2 Apr 2026 17:51:05 +0800","Message-Id":"<20260402095107.205439-12-sherry.sun@nxp.com>","X-Mailer":"git-send-email 2.37.1","In-Reply-To":"<20260402095107.205439-1-sherry.sun@nxp.com>","References":"<20260402095107.205439-1-sherry.sun@nxp.com>","Content-Transfer-Encoding":"8bit","Content-Type":"text/plain","X-ClientProxiedBy":"MA5P287CA0163.INDP287.PROD.OUTLOOK.COM\n (2603:1096:a01:1ba::11) To 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","X-OriginatorOrg":"nxp.com","X-MS-Exchange-CrossTenant-Network-Message-Id":"\n 46cc5cd1-3f00-43c7-c30e-08de909d5e69","X-MS-Exchange-CrossTenant-AuthSource":"VI0PR04MB12114.eurprd04.prod.outlook.com","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"02 Apr 2026 09:51:10.3499\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 T9Vp4pdmIVrff5zl9CwFKiU3+Ml3JDCTMlr4x6SLDMwG+euuA8AuZOJZVdZFvRZsK1kLliCm9kDuDyAFW9hS0A==","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"DB9PR04MB9865"},"content":"Since describing the PCIe PERST# property under Host Bridge node is now\ndeprecated, it is recommended to add it to the Root Port node, so\ncreating the Root Port node and add the reset-gpios property in Root\nPort.\n\nSigned-off-by: Sherry Sun \n---\n arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 10 +++++++++\n arch/arm64/boot/dts/freescale/imx8mq.dtsi | 22 ++++++++++++++++++++\n 2 files changed, 32 insertions(+)","diff":"diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts\nindex d48f901487d4..e7d87ea81b69 100644\n--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts\n+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts\n@@ -369,6 +369,7 @@ mipi_dsi_out: endpoint {\n &pcie0 {\n \tpinctrl-names = \"default\";\n \tpinctrl-0 = <&pinctrl_pcie0>;\n+\t/* This property is deprecated, use reset-gpios from the Root Port node. */\n \treset-gpio = <&gpio5 28 GPIO_ACTIVE_LOW>;\n \tclocks = <&clk IMX8MQ_CLK_PCIE1_ROOT>,\n \t\t <&pcie0_refclk>,\n@@ -389,9 +390,14 @@ &pcie0_ep {\n \tstatus = \"disabled\";\n };\n \n+&pcie0_port0 {\n+\treset-gpios = <&gpio5 28 GPIO_ACTIVE_LOW>;\n+};\n+\n &pcie1 {\n \tpinctrl-names = \"default\";\n \tpinctrl-0 = <&pinctrl_pcie1>;\n+\t/* This property is deprecated, use reset-gpios from the Root Port node. */\n \treset-gpio = <&gpio5 12 GPIO_ACTIVE_LOW>;\n \tclocks = <&clk IMX8MQ_CLK_PCIE2_ROOT>,\n \t\t <&pcie0_refclk>,\n@@ -414,6 +420,10 @@ &pcie1_ep {\n \tstatus = \"disabled\";\n };\n \n+&pcie1_port0 {\n+\treset-gpios = <&gpio5 12 GPIO_ACTIVE_LOW>;\n+};\n+\n &pgc_gpu {\n \tpower-supply = <&sw1a_reg>;\n };\ndiff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi\nindex 6a25e219832c..e60872aeeb49 100644\n--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi\n+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi\n@@ -1768,6 +1768,17 @@ pcie0: pcie@33800000 {\n \t\t\tassigned-clock-rates = <250000000>, <100000000>,\n \t\t\t <10000000>;\n \t\t\tstatus = \"disabled\";\n+\n+\t\t\tpcie0_port0: pcie@0 {\n+\t\t\t\tcompatible = \"pciclass,0604\";\n+\t\t\t\tdevice_type = \"pci\";\n+\t\t\t\treg = <0x0 0x0 0x0 0x0 0x0>;\n+\t\t\t\tbus-range = <0x01 0xff>;\n+\n+\t\t\t\t#address-cells = <3>;\n+\t\t\t\t#size-cells = <2>;\n+\t\t\t\tranges;\n+\t\t\t};\n \t\t};\n \n \t\tpcie0_ep: pcie-ep@33800000 {\n@@ -1846,6 +1857,17 @@ pcie1: pcie@33c00000 {\n \t\t\tassigned-clock-rates = <250000000>, <100000000>,\n \t\t\t <10000000>;\n \t\t\tstatus = \"disabled\";\n+\n+\t\t\tpcie1_port0: pcie@0 {\n+\t\t\t\tcompatible = \"pciclass,0604\";\n+\t\t\t\tdevice_type = \"pci\";\n+\t\t\t\treg = <0x0 0x0 0x0 0x0 0x0>;\n+\t\t\t\tbus-range = <0x01 0xff>;\n+\n+\t\t\t\t#address-cells = <3>;\n+\t\t\t\t#size-cells = <2>;\n+\t\t\t\tranges;\n+\t\t\t};\n \t\t};\n \n \t\tpcie1_ep: pcie-ep@33c00000 {\n","prefixes":["V10","11/13"]}