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Some PCI devices must be powered-on before they can be detected on the bus. Introduce a simple framework reusing the existing PCI OF infrastructure. The way this works is: a DT node representing a PCI device connected to the port can be matched against its power control platform driver. If the match succeeds, the driver is responsible for powering-up the device and calling pci_pwrctl_device_set_ready() which will trigger a PCI bus rescan as well as subscribe to PCI bus notifications. When the device is detected and created, we'll make it consume the same DT node that the platform device did. When the device is bound, we'll create a device link between it and the parent power control device. Tested-by: Amit Pundir <amit.pundir@linaro.org> Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD, SM8650-QRD & SM8650-HDK Tested-by: Caleb Connolly <caleb.connolly@linaro.org> # OnePlus 8T Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20240612082019.19161-5-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
46 lines
1.3 KiB
Makefile
46 lines
1.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the PCI bus specific drivers.
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obj-$(CONFIG_PCI) += access.o bus.o probe.o host-bridge.o \
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remove.o pci.o pci-driver.o search.o \
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rom.o setup-res.o irq.o vpd.o \
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setup-bus.o vc.o mmap.o devres.o
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obj-$(CONFIG_PCI) += msi/
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obj-$(CONFIG_PCI) += pcie/
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obj-$(CONFIG_PCI) += pwrctl/
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ifdef CONFIG_PCI
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obj-$(CONFIG_PROC_FS) += proc.o
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obj-$(CONFIG_SYSFS) += pci-sysfs.o slot.o
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obj-$(CONFIG_ACPI) += pci-acpi.o
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obj-$(CONFIG_GENERIC_PCI_IOMAP) += iomap.o
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endif
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obj-$(CONFIG_OF) += of.o
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obj-$(CONFIG_PCI_QUIRKS) += quirks.o
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obj-$(CONFIG_HOTPLUG_PCI) += hotplug/
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obj-$(CONFIG_PCI_ATS) += ats.o
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obj-$(CONFIG_PCI_IOV) += iov.o
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obj-$(CONFIG_PCI_BRIDGE_EMUL) += pci-bridge-emul.o
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obj-$(CONFIG_PCI_LABEL) += pci-label.o
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obj-$(CONFIG_X86_INTEL_MID) += pci-mid.o
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obj-$(CONFIG_PCI_SYSCALL) += syscall.o
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obj-$(CONFIG_PCI_STUB) += pci-stub.o
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obj-$(CONFIG_PCI_PF_STUB) += pci-pf-stub.o
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obj-$(CONFIG_PCI_ECAM) += ecam.o
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obj-$(CONFIG_PCI_P2PDMA) += p2pdma.o
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obj-$(CONFIG_XEN_PCIDEV_FRONTEND) += xen-pcifront.o
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obj-$(CONFIG_VGA_ARB) += vgaarb.o
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obj-$(CONFIG_PCI_DOE) += doe.o
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obj-$(CONFIG_PCI_DYNAMIC_OF_NODES) += of_property.o
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# Endpoint library must be initialized before its users
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obj-$(CONFIG_PCI_ENDPOINT) += endpoint/
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obj-y += controller/
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obj-y += switch/
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subdir-ccflags-$(CONFIG_PCI_DEBUG) := -DDEBUG
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