{"id":2226123,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2226123/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260422093549.407022-11-sherry.sun@nxp.com/","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/1.2/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":"<20260422093549.407022-11-sherry.sun@nxp.com>","list_archive_url":null,"date":"2026-04-22T09:35:47","name":"[V14,10/12] 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/1.2/people/77063/?format=json","name":"Sherry Sun","email":"sherry.sun@nxp.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260422093549.407022-11-sherry.sun@nxp.com/mbox/","series":[{"id":500954,"url":"http://patchwork.ozlabs.org/api/1.2/series/500954/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/list/?series=500954","date":"2026-04-22T09:35:40","name":"pci-imx6: Add support for parsing the reset property in new Root Port binding","version":14,"mbox":"http://patchwork.ozlabs.org/series/500954/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2226123/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2226123/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 V14 10/12] arm64: dts: imx8mq: Add Root Port node and PERST\n property","Date":"Wed, 22 Apr 2026 17:35:47 +0800","Message-Id":"<20260422093549.407022-11-sherry.sun@nxp.com>","X-Mailer":"git-send-email 2.37.1","In-Reply-To":"<20260422093549.407022-1-sherry.sun@nxp.com>","References":"<20260422093549.407022-1-sherry.sun@nxp.com>","Content-Transfer-Encoding":"8bit","Content-Type":"text/plain","X-ClientProxiedBy":"SG2PR01CA0140.apcprd01.prod.exchangelabs.com\n (2603:1096:4:8f::20) To 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","X-OriginatorOrg":"nxp.com","X-MS-Exchange-CrossTenant-Network-Message-Id":"\n 42ef449e-c2bc-49d4-da38-08dea05275c3","X-MS-Exchange-CrossTenant-AuthSource":"VI0PR04MB12114.eurprd04.prod.outlook.com","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"22 Apr 2026 09:35:15.9461\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 Rd9q7jNX6jXrjTQpk0Gavut1FKqnxfpjp0AlXBBWfTtpD0zk9B7Z1V1as7zxg8Z8J5S5i1Nb/PNVXjP6s+PVHA==","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"GV4PR04MB11428"},"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":["V14","10/12"]}