{"id":2220465,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2220465/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260407104154.2842132-11-sherry.sun@nxp.com/","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/1.1/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},"msgid":"<20260407104154.2842132-11-sherry.sun@nxp.com>","date":"2026-04-07T10:41:52","name":"[V11,10/12] 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/1.1/people/77063/?format=json","name":"Sherry Sun","email":"sherry.sun@nxp.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260407104154.2842132-11-sherry.sun@nxp.com/mbox/","series":[{"id":498961,"url":"http://patchwork.ozlabs.org/api/1.1/series/498961/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/list/?series=498961","date":"2026-04-07T10:41:47","name":"pci-imx6: Add support for parsing the reset property in new Root Port binding","version":11,"mbox":"http://patchwork.ozlabs.org/series/498961/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2220465/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2220465/checks/","tags":{},"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 header.a=rsa-sha256\n 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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 V11 10/12] arm64: dts: imx8mq: Add Root Port node and PERST\n property","Date":"Tue, 7 Apr 2026 18:41:52 +0800","Message-Id":"<20260407104154.2842132-11-sherry.sun@nxp.com>","X-Mailer":"git-send-email 2.37.1","In-Reply-To":"<20260407104154.2842132-1-sherry.sun@nxp.com>","References":"<20260407104154.2842132-1-sherry.sun@nxp.com>","Content-Transfer-Encoding":"8bit","Content-Type":"text/plain","X-ClientProxiedBy":"MA5P287CA0060.INDP287.PROD.OUTLOOK.COM\n (2603:1096:a01:1d3::9) To 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","X-OriginatorOrg":"nxp.com","X-MS-Exchange-CrossTenant-Network-Message-Id":"\n c9f2e2c6-b634-493e-46f9-08de949267d3","X-MS-Exchange-CrossTenant-AuthSource":"VI0PR04MB12114.eurprd04.prod.outlook.com","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"07 Apr 2026 10:42:46.3592\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 i6yd4DRYUmkEANNCulExYn1+n5JSAMtbJQlMbuxh70UsbFd0p8f8FOL485famyiE2Y30Z9sZwTMxn4Ktv0uh/A==","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"DB9PR04MB8281"},"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":["V11","10/12"]}