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PCI: acpiphp: Move host bridge hotplug to pci_root.c

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The acpiphp driver is confusing because it contains partial support for PCI
host bridge hotplug as well as support for hotplug of PCI devices.

This patch moves the host bridge hot-add support to pci_root.c and adds
hot-remove support in pci_root.c.

How to test it: if sci_emu patch is applied, find out root bus number to
ACPI root name mapping from dmesg or /sys.  To remove root bus:

  echo "\_SB.PCIB 3" > /sys/kernel/debug/acpi/sci_notify

To add back root bus:

  echo "\_SB.PCIB 1" > /sys/kernel/debug/acpi/sci_notify

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Yinghai Lu
2013-01-21 13:20:48 -08:00
committed by Bjorn Helgaas
parent 92d8aff3a3
commit 668192b678
4 changed files with 143 additions and 44 deletions
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1
drivers/acpi/internal.h
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@@ -68,6 +68,7 @@ struct acpi_ec {
extern struct acpi_ec *first_ec;
int acpi_pci_root_init(void);
void acpi_pci_root_hp_init(void);
int acpi_ec_init(void);
int acpi_ec_ecdt_probe(void);
int acpi_boot_ec_enable(void);