From abeeed6d3d9948b3235a5bb77759d8c1f84de39d Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Wed, 27 May 2015 16:07:00 +1000 Subject: [PATCH] powerpc/pci: Add pcibios_disable_device() hook This adds a hook into the powerpc pci code for pci_disable_device() calls. The generic code already provides a weak pcibios_disable_device() symbol, so we just need to provide our own in powerpc and it'll get picked up. This is passed directly to the phb controller ops, provided one exists. Signed-off-by: Michael Neuling Signed-off-by: Michael Ellerman --- arch/powerpc/include/asm/pci-bridge.h | 2 ++ arch/powerpc/kernel/pci-common.c | 8 ++++++++ 2 files changed, 10 insertions(+) diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 3947749de280..b76cd5682a8c 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -27,6 +27,8 @@ struct pci_controller_ops { * allow assignment/enabling of the device. */ bool (*enable_device_hook)(struct pci_dev *); + void (*disable_device)(struct pci_dev *); + void (*release_device)(struct pci_dev *); /* Called during PCI resource reassignment */ diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 2040cd2f7358..b9de34d44fcb 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1490,6 +1490,14 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) return pci_enable_resources(dev, mask); } +void pcibios_disable_device(struct pci_dev *dev) +{ + struct pci_controller *phb = pci_bus_to_host(dev->bus); + + if (phb->controller_ops.disable_device) + phb->controller_ops.disable_device(dev); +} + resource_size_t pcibios_io_space_offset(struct pci_controller *hose) { return (unsigned long) hose->io_base_virt - _IO_BASE; -- 2.30.2