From f18589576cb87e76c20046b335124a8af6feb6ac Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 7 Jul 2020 21:32:07 -0600 Subject: dm: core: Add a way of overriding the ACPI device path Some devices such as GPIO need to override the normal path that would be generated by driver model. Add a device-tree property for this. Signed-off-by: Simon Glass Reviewed-by: Bin Meng Reviewed-by: Wolfgang Wallner --- doc/device-tree-bindings/device.txt | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'doc') diff --git a/doc/device-tree-bindings/device.txt b/doc/device-tree-bindings/device.txt index 7140339623..2a5736c598 100644 --- a/doc/device-tree-bindings/device.txt +++ b/doc/device-tree-bindings/device.txt @@ -17,6 +17,8 @@ the acpi,compatible property. System) Device Name) - acpi,hid : Contains the string to use as the HID (Hardware ID) identifier _HID + - acpi,path : Specifies the full ACPI path for a device. This overrides the + normal path built from the driver-model hierarchy - acpi,name : Provides the ACPI name for a device, which is a string consisting of four alphanumeric character (upper case) - acpi,uid : _UID value for device @@ -47,3 +49,24 @@ pcie-a0@14,0 { interrupts-extended = <&acpi_gpe 0x3c 0>; }; }; + +p2sb: p2sb@d,0 { + u-boot,dm-pre-reloc; + reg = <0x02006810 0 0 0 0>; + compatible = "intel,apl-p2sb"; + early-regs = ; + pci,no-autoconfig; + + n { + compatible = "intel,apl-pinctrl"; + u-boot,dm-pre-reloc; + intel,p2sb-port-id = ; + acpi,path = "\\_SB.GPO0"; + gpio_n: gpio-n { + compatible = "intel,gpio"; + u-boot,dm-pre-reloc; + gpio-controller; + #gpio-cells = <2>; + linux-name = "INT3452:00"; + }; + }; -- cgit v1.2.3