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charset="utf-8" Integrate the PCI pwrctrl framework into the pci-imx6 driver to provide standardized power management for PCIe devices. Legacy regulator handling (vpcie-supply at controller level) is maintained for backward compatibility with existing device trees. New device trees should specify power supplies at the Root Port level to utilize the pwrctrl framework. Signed-off-by: Sherry Sun --- drivers/pci/controller/dwc/Kconfig | 1 + drivers/pci/controller/dwc/pci-imx6.c | 24 +++++++++++++++++++++++- 2 files changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dw= c/Kconfig index f2fde13107f2..327b0dc65550 100644 --- a/drivers/pci/controller/dwc/Kconfig +++ b/drivers/pci/controller/dwc/Kconfig @@ -114,6 +114,7 @@ config PCI_IMX6_HOST depends on PCI_MSI select PCIE_DW_HOST select PCI_IMX6 + select PCI_PWRCTRL_GENERIC help Enables support for the PCIe controller in the i.MX SoCs to work in Root Complex mode. The PCI controller on i.MX is based diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller= /dwc/pci-imx6.c index b44563309d40..0078cd7bbf9e 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -1314,6 +1315,7 @@ static int imx_pcie_host_init(struct dw_pcie_rp *pp) return ret; } =20 + /* Legacy regulator handling for DT backward compatibility. */ if (imx_pcie->vpcie) { ret =3D regulator_enable(imx_pcie->vpcie); if (ret) { @@ -1323,10 +1325,22 @@ static int imx_pcie_host_init(struct dw_pcie_rp *pp) } } =20 + ret =3D pci_pwrctrl_create_devices(dev); + if (ret) { + dev_err(dev, "failed to create pwrctrl devices\n"); + goto err_reg_disable; + } + + ret =3D pci_pwrctrl_power_on_devices(dev); + if (ret) { + dev_err(dev, "failed to power on pwrctrl devices\n"); + goto err_pwrctrl_destroy; + } + ret =3D imx_pcie_clk_enable(imx_pcie); if (ret) { dev_err(dev, "unable to enable pcie clocks: %d\n", ret); - goto err_reg_disable; + goto err_pwrctrl_power_off; } =20 if (pp->bridge && imx_check_flag(imx_pcie, IMX_PCIE_FLAG_HAS_LUT)) { @@ -1385,6 +1399,11 @@ static int imx_pcie_host_init(struct dw_pcie_rp *pp) phy_exit(imx_pcie->phy); err_clk_disable: imx_pcie_clk_disable(imx_pcie); +err_pwrctrl_power_off: + pci_pwrctrl_power_off_devices(dev); +err_pwrctrl_destroy: + if (ret !=3D -EPROBE_DEFER) + pci_pwrctrl_destroy_devices(dev); err_reg_disable: if (imx_pcie->vpcie) regulator_disable(imx_pcie->vpcie); @@ -1403,6 +1422,7 @@ static void imx_pcie_host_exit(struct dw_pcie_rp *pp) } imx_pcie_clk_disable(imx_pcie); =20 + pci_pwrctrl_power_off_devices(pci->dev); if (imx_pcie->vpcie) regulator_disable(imx_pcie->vpcie); } @@ -1911,6 +1931,8 @@ static void imx_pcie_shutdown(struct platform_device = *pdev) /* bring down link, so bootloader gets clean state in case of reboot */ imx_pcie_assert_core_reset(imx_pcie); imx_pcie_assert_perst(imx_pcie, true); + pci_pwrctrl_power_off_devices(&pdev->dev); + pci_pwrctrl_destroy_devices(&pdev->dev); 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charset="utf-8" Move the vpcie-supply property from the PCIe controller node to the Root Port child node to support the new PCI pwrctrl framework. Signed-off-by: Sherry Sun --- arch/arm/boot/dts/nxp/imx/imx6qdl-sabresd.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-sabresd.dtsi b/arch/arm/boot= /dts/nxp/imx/imx6qdl-sabresd.dtsi index fe9046c03ddd..e52205d7c487 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-sabresd.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-sabresd.dtsi @@ -756,12 +756,12 @@ &pcie { pinctrl-0 =3D <&pinctrl_pcie>; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&gpio7 12 GPIO_ACTIVE_LOW>; - vpcie-supply =3D <®_pcie>; status =3D "okay"; }; =20 &pcie_port0 { reset-gpios =3D <&gpio7 12 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_pcie>; }; =20 &pwm1 { --=20 2.37.1 From nobody Fri Apr 3 01:24:05 2026 Received: from DB3PR0202CU003.outbound.protection.outlook.com (mail-northeuropeazon11010050.outbound.protection.outlook.com [52.101.84.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B4F173A544D; 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charset="utf-8" Move the vpcie-supply property from the PCIe controller node to the Root Port child node to support the new PCI pwrctrl framework. Signed-off-by: Sherry Sun --- arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi b/arch/arm/boot/dts/= nxp/imx/imx6sx-sdb.dtsi index 338de4d144b2..7633ba2139d3 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi @@ -284,12 +284,12 @@ &pcie { pinctrl-0 =3D <&pinctrl_pcie>; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&gpio2 0 GPIO_ACTIVE_LOW>; - vpcie-supply =3D <®_pcie_gpio>; status =3D "okay"; }; =20 &pcie_port0 { reset-gpios =3D <&gpio2 0 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_pcie_gpio>; }; =20 &lcdif1 { --=20 2.37.1 From nobody Fri Apr 3 01:24:05 2026 Received: from AM0PR02CU008.outbound.protection.outlook.com (mail-westeuropeazon11013032.outbound.protection.outlook.com [52.101.72.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D53603C873C; 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charset="utf-8" Move the vpcie-supply property from the PCIe controller node to the Root Port child node to support the new PCI pwrctrl framework. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boo= t/dts/freescale/imx8mm-evk.dtsi index e03aba825c18..ba7fa0815d13 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi @@ -542,7 +542,6 @@ &pcie0 { assigned-clock-rates =3D <10000000>, <250000000>; assigned-clock-parents =3D <&clk IMX8MM_SYS_PLL2_50M>, <&clk IMX8MM_SYS_PLL2_250M>; - vpcie-supply =3D <®_pcie0>; supports-clkreq; status =3D "okay"; }; @@ -562,6 +561,7 @@ &pcie0_ep { =20 &pcie0_port0 { reset-gpios =3D <&gpio4 21 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_pcie0>; }; =20 &sai2 { --=20 2.37.1 From nobody Fri Apr 3 01:24:05 2026 Received: from DUZPR83CU001.outbound.protection.outlook.com (mail-northeuropeazon11012041.outbound.protection.outlook.com [52.101.66.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ACD243DE444; 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charset="utf-8" Move the vpcie-supply and vpcie3v3aux-supply properties from the PCIe controller node to the Root Port child node to support the new PCI pwrctrl framework. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mp-evk.dts index a7f3acdc36d1..cb2b820cf3bc 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -772,8 +772,6 @@ &pcie0 { pinctrl-0 =3D <&pinctrl_pcie0>; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&gpio2 7 GPIO_ACTIVE_LOW>; - vpcie-supply =3D <®_pcie0>; - vpcie3v3aux-supply =3D <®_pcie0>; supports-clkreq; status =3D "disabled"; }; @@ -786,6 +784,8 @@ &pcie0_ep { =20 &pcie0_port0 { reset-gpios =3D <&gpio2 7 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_pcie0>; + vpcie3v3aux-supply =3D <®_pcie0>; }; =20 &pwm1 { --=20 2.37.1 From nobody Fri Apr 3 01:24:05 2026 Received: from AS8PR04CU009.outbound.protection.outlook.com (mail-westeuropeazon11011070.outbound.protection.outlook.com [52.101.70.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CBCC53DDDC2; 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charset="utf-8" Move the vpcie-supply and vpcie3v3aux-supply properties from the PCIe controller node to the Root Port child node to support the new PCI pwrctrl framework. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mq-evk.dts index e7d87ea81b69..75d9b25d1f0e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts @@ -403,8 +403,6 @@ &pcie1 { <&pcie0_refclk>, <&clk IMX8MQ_CLK_PCIE2_PHY>, <&clk IMX8MQ_CLK_PCIE2_AUX>; - vpcie-supply =3D <®_pcie1>; - vpcie3v3aux-supply =3D <®_pcie1>; vph-supply =3D <&vgen5_reg>; supports-clkreq; status =3D "okay"; @@ -422,6 +420,8 @@ &pcie1_ep { =20 &pcie1_port0 { reset-gpios =3D <&gpio5 12 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_pcie1>; + vpcie3v3aux-supply =3D <®_pcie1>; }; =20 &pgc_gpu { --=20 2.37.1 From nobody Fri Apr 3 01:24:05 2026 Received: from AM0PR83CU005.outbound.protection.outlook.com (mail-westeuropeazon11010012.outbound.protection.outlook.com [52.101.69.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 103C73E0229; 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charset="utf-8" Move the vpcie-supply and vpcie3v3aux-supply properties from the PCIe controller nodes to the Root Port child nodes to support the new PCI pwrctrl framework. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx8dxl-evk.dts | 4 ++-- arch/arm64/boot/dts/freescale/imx8qm-mek.dts | 4 ++-- arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts b/arch/arm64/boo= t/dts/freescale/imx8dxl-evk.dts index 39108a915f96..66b2d496b73f 100644 --- a/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts @@ -677,8 +677,6 @@ &pcie0 { pinctrl-names =3D "default"; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&lsio_gpio4 0 GPIO_ACTIVE_LOW>; - vpcie-supply =3D <®_pcieb>; - vpcie3v3aux-supply =3D <®_pcieb>; status =3D "okay"; }; =20 @@ -694,6 +692,8 @@ &pcie0_ep { =20 &pcieb_port0 { reset-gpios =3D <&lsio_gpio4 0 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_pcieb>; + vpcie3v3aux-supply =3D <®_pcieb>; }; =20 &sai0 { diff --git a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts b/arch/arm64/boot= /dts/freescale/imx8qm-mek.dts index f706c86137c0..5e725ad8aef9 100644 --- a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts +++ b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts @@ -812,14 +812,14 @@ &pciea { pinctrl-names =3D "default"; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&lsio_gpio4 29 GPIO_ACTIVE_LOW>; - vpcie-supply =3D <®_pciea>; - vpcie3v3aux-supply =3D <®_pciea>; supports-clkreq; status =3D "okay"; }; =20 &pciea_port0 { reset-gpios =3D <&lsio_gpio4 29 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_pciea>; + vpcie3v3aux-supply =3D <®_pciea>; }; =20 &pcieb { diff --git a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts b/arch/arm64/boo= t/dts/freescale/imx8qxp-mek.dts index 489e174df4c4..4a4e9bcca9d0 100644 --- a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts +++ b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts @@ -732,8 +732,6 @@ &pcie0 { pinctrl-names =3D "default"; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpios =3D <&lsio_gpio4 0 GPIO_ACTIVE_LOW>; - vpcie-supply =3D <®_pcieb>; - vpcie3v3aux-supply =3D <®_pcieb>; supports-clkreq; status =3D "okay"; }; @@ -749,6 +747,8 @@ &pcie0_ep { =20 &pcieb_port0 { reset-gpios =3D <&lsio_gpio4 0 GPIO_ACTIVE_LOW>; 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charset="utf-8" Move the vpcie-supply and vpcie3v3aux-supply properties from the PCIe controller nodes to the Root Port child nodes to support the new PCI pwrctrl framework. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts | 4 ++-- arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 8 ++++---- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts b/arch/arm64= /boot/dts/freescale/imx95-15x15-evk.dts index 7d820a0f80b2..0d1cdfd54cce 100644 --- a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts @@ -555,8 +555,6 @@ &pcie0 { pinctrl-names =3D "default"; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&gpio5 13 GPIO_ACTIVE_LOW>; - vpcie-supply =3D <®_m2_pwr>; - vpcie3v3aux-supply =3D <®_m2_pwr>; supports-clkreq; status =3D "disabled"; }; @@ -570,6 +568,8 @@ &pcie0_ep { =20 &pcie0_port0 { reset-gpios =3D <&gpio5 13 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_m2_pwr>; + vpcie3v3aux-supply =3D <®_m2_pwr>; }; =20 &sai1 { diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64= /boot/dts/freescale/imx95-19x19-evk.dts index 6f193cf04119..77c3a87d9065 100644 --- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts @@ -542,8 +542,6 @@ &pcie0 { pinctrl-names =3D "default"; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&i2c7_pcal6524 5 GPIO_ACTIVE_LOW>; - vpcie-supply =3D <®_pcie0>; - vpcie3v3aux-supply =3D <®_pcie0>; supports-clkreq; status =3D "okay"; }; @@ -557,6 +555,8 @@ &pcie0_ep { =20 &pcie0_port0 { reset-gpios =3D <&i2c7_pcal6524 5 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_pcie0>; + vpcie3v3aux-supply =3D <®_pcie0>; }; =20 &pcie1 { @@ -564,8 +564,6 @@ &pcie1 { pinctrl-names =3D "default"; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&i2c7_pcal6524 16 GPIO_ACTIVE_LOW>; - vpcie-supply =3D <®_slot_pwr>; - vpcie3v3aux-supply =3D <®_slot_pwr>; status =3D "okay"; }; =20 @@ -578,6 +576,8 @@ &pcie1_ep { =20 &pcie1_port0 { reset-gpios =3D <&i2c7_pcal6524 16 GPIO_ACTIVE_LOW>; + vpcie-supply =3D <®_slot_pwr>; + vpcie3v3aux-supply =3D <®_slot_pwr>; }; =20 &sai1 { --=20 2.37.1