{"id":2223894,"url":"http://patchwork.ozlabs.org/api/patches/2223894/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260416111422.183860-11-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":"<20260416111422.183860-11-sherry.sun@nxp.com>","list_archive_url":null,"date":"2026-04-16T11:14:20","name":"[V13,10/12] 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/20260416111422.183860-11-sherry.sun@nxp.com/mbox/","series":[{"id":500134,"url":"http://patchwork.ozlabs.org/api/series/500134/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/list/?series=500134","date":"2026-04-16T11:14:11","name":"pci-imx6: Add support for parsing the reset property in new Root Port binding","version":13,"mbox":"http://patchwork.ozlabs.org/series/500134/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2223894/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2223894/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 V13 10/12] arm64: dts: imx8mq: Add Root Port node and PERST\n property","Date":"Thu, 16 Apr 2026 19:14:20 +0800","Message-Id":"<20260416111422.183860-11-sherry.sun@nxp.com>","X-Mailer":"git-send-email 2.37.1","In-Reply-To":"<20260416111422.183860-1-sherry.sun@nxp.com>","References":"<20260416111422.183860-1-sherry.sun@nxp.com>","Content-Transfer-Encoding":"8bit","Content-Type":"text/plain","X-ClientProxiedBy":"MA0PR01CA0076.INDPRD01.PROD.OUTLOOK.COM\n (2603:1096:a01:ad::17) To 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","X-OriginatorOrg":"nxp.com","X-MS-Exchange-CrossTenant-Network-Message-Id":"\n 074376b8-98f2-4c0e-3b53-08de9ba9447e","X-MS-Exchange-CrossTenant-AuthSource":"VI0PR04MB12114.eurprd04.prod.outlook.com","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"16 Apr 2026 11:14:03.6208\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 ERnO7kflBYsNCZ0bT6+R/H7R6N/PbpGA37bjQLFfm4LP3qFodpLeH8W820TZyosioDcL9d+G10wPccSQ57hQ+g==","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"DBBPR04MB7897"},"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":["V13","10/12"]}