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-rw-r--r--arch/alpha/kernel/pci.c7
-rw-r--r--arch/arm/boot/dts/am57xx-beagle-x15.dts4
-rw-r--r--arch/arm/boot/dts/dra7.dtsi2
-rw-r--r--arch/arm/include/asm/mach/pci.h5
-rw-r--r--arch/arm/kernel/bios32.c45
-rw-r--r--arch/arm64/boot/dts/apm/apm-storm.dtsi23
-rw-r--r--arch/frv/mb93090-mb00/pci-vdk.c2
-rw-r--r--arch/ia64/pci/pci.c5
-rw-r--r--arch/microblaze/pci/pci-common.c9
-rw-r--r--arch/mips/pci/pci.c6
-rw-r--r--arch/mn10300/unit-asb2305/pci.c1
-rw-r--r--arch/powerpc/kernel/pci-common.c8
-rw-r--r--arch/powerpc/kernel/pci_of_scan.c6
-rw-r--r--arch/sparc/kernel/pci.c6
-rw-r--r--arch/x86/include/asm/pci_x86.h2
-rw-r--r--arch/x86/pci/common.c21
-rw-r--r--arch/x86/pci/intel_mid_pci.c9
-rw-r--r--arch/x86/pci/irq.c23
-rw-r--r--arch/xtensa/kernel/pci.c4
19 files changed, 59 insertions, 129 deletions
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 82f738e5d54c..cded02c890aa 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -242,12 +242,7 @@ pci_restore_srm_config(void)
void pcibios_fixup_bus(struct pci_bus *bus)
{
- struct pci_dev *dev = bus->self;
-
- if (pci_has_flag(PCI_PROBE_ONLY) && dev &&
- (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
- pci_read_bridge_bases(bus);
- }
+ struct pci_dev *dev;
list_for_each_entry(dev, &bus->devices, bus_list) {
pdev_save_srm_config(dev);
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index a63bf78191ea..f9a4b317ed2f 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -693,3 +693,7 @@
};
};
};
+
+&pcie1 {
+ gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 8f1e25bcecbd..37202b41351b 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -211,7 +211,7 @@
#address-cells = <1>;
ranges = <0x51000000 0x51000000 0x3000
0x0 0x20000000 0x10000000>;
- pcie@51000000 {
+ pcie1: pcie@51000000 {
compatible = "ti,dra7-pcie";
reg = <0x51000000 0x2000>, <0x51002000 0x14c>, <0x1000 0x2000>;
reg-names = "rc_dbics", "ti_conf", "config";
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index 28b9bb35949e..8857d2869a5f 100644
--- a/arch/arm/include/asm/mach/pci.h
+++ b/arch/arm/include/asm/mach/pci.h
@@ -19,9 +19,7 @@ struct pci_bus;
struct device;
struct hw_pci {
-#ifdef CONFIG_PCI_MSI
struct msi_controller *msi_ctrl;
-#endif
struct pci_ops *ops;
int nr_controllers;
void **private_data;
@@ -42,9 +40,6 @@ struct hw_pci {
* Per-controller structure
*/
struct pci_sys_data {
-#ifdef CONFIG_PCI_MSI
- struct msi_controller *msi_ctrl;
-#endif
struct list_head node;
int busnr; /* primary bus number */
u64 mem_offset; /* bus->cpu memory mapping offset */
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index fcbbbb1b9e95..874e1823f803 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -18,15 +18,6 @@
static int debug_pci;
-#ifdef CONFIG_PCI_MSI
-struct msi_controller *pcibios_msi_controller(struct pci_dev *dev)
-{
- struct pci_sys_data *sysdata = dev->bus->sysdata;
-
- return sysdata->msi_ctrl;
-}
-#endif
-
/*
* We can't use pci_get_device() here since we are
* called from interrupt context.
@@ -459,12 +450,9 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
for (nr = busnr = 0; nr < hw->nr_controllers; nr++) {
sys = kzalloc(sizeof(struct pci_sys_data), GFP_KERNEL);
- if (!sys)
- panic("PCI: unable to allocate sys data!");
+ if (WARN(!sys, "PCI: unable to allocate sys data!"))
+ break;
-#ifdef CONFIG_PCI_MSI
- sys->msi_ctrl = hw->msi_ctrl;
-#endif
sys->busnr = busnr;
sys->swizzle = hw->swizzle;
sys->map_irq = hw->map_irq;
@@ -486,11 +474,14 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
if (hw->scan)
sys->bus = hw->scan(nr, sys);
else
- sys->bus = pci_scan_root_bus(parent, sys->busnr,
- hw->ops, sys, &sys->resources);
+ sys->bus = pci_scan_root_bus_msi(parent,
+ sys->busnr, hw->ops, sys,
+ &sys->resources, hw->msi_ctrl);
- if (!sys->bus)
- panic("PCI: unable to scan bus!");
+ if (WARN(!sys->bus, "PCI: unable to scan bus!")) {
+ kfree(sys);
+ break;
+ }
busnr = sys->bus->busn_res.end + 1;
@@ -521,6 +512,8 @@ void pci_common_init_dev(struct device *parent, struct hw_pci *hw)
struct pci_bus *bus = sys->bus;
if (!pci_has_flag(PCI_PROBE_ONLY)) {
+ struct pci_bus *child;
+
/*
* Size the bridge windows.
*/
@@ -530,25 +523,15 @@ void pci_common_init_dev(struct device *parent, struct hw_pci *hw)
* Assign resources.
*/
pci_bus_assign_resources(bus);
- }
+ list_for_each_entry(child, &bus->children, node)
+ pcie_bus_configure_settings(child);
+ }
/*
* Tell drivers about devices found.
*/
pci_bus_add_devices(bus);
}
-
- list_for_each_entry(sys, &head, node) {
- struct pci_bus *bus = sys->bus;
-
- /* Configure PCI Express settings */
- if (bus && !pci_has_flag(PCI_PROBE_ONLY)) {
- struct pci_bus *child;
-
- list_for_each_entry(child, &bus->children, node)
- pcie_bus_configure_settings(child);
- }
- }
}
#ifndef CONFIG_PCI_HOST_ITE8152
diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index 0689c3fb56e3..b49482e3ca9c 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -490,7 +490,8 @@
0xe0 0xd0000000 0x0 0x00040000>; /* PCI config space */
reg-names = "csr", "cfg";
ranges = <0x01000000 0x00 0x00000000 0xe0 0x10000000 0x00 0x00010000 /* io */
- 0x02000000 0x00 0x80000000 0xe1 0x80000000 0x00 0x80000000>; /* mem */
+ 0x02000000 0x00 0x80000000 0xe1 0x80000000 0x00 0x80000000 /* mem */
+ 0x43000000 0xf0 0x00000000 0xf0 0x00000000 0x10 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
@@ -513,8 +514,9 @@
reg = < 0x00 0x1f2c0000 0x0 0x00010000 /* Controller registers */
0xd0 0xd0000000 0x0 0x00040000>; /* PCI config space */
reg-names = "csr", "cfg";
- ranges = <0x01000000 0x0 0x00000000 0xd0 0x10000000 0x00 0x00010000 /* io */
- 0x02000000 0x0 0x80000000 0xd1 0x80000000 0x00 0x80000000>; /* mem */
+ ranges = <0x01000000 0x00 0x00000000 0xd0 0x10000000 0x00 0x00010000 /* io */
+ 0x02000000 0x00 0x80000000 0xd1 0x80000000 0x00 0x80000000 /* mem */
+ 0x43000000 0xd8 0x00000000 0xd8 0x00000000 0x08 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
@@ -537,8 +539,9 @@
reg = < 0x00 0x1f2d0000 0x0 0x00010000 /* Controller registers */
0x90 0xd0000000 0x0 0x00040000>; /* PCI config space */
reg-names = "csr", "cfg";
- ranges = <0x01000000 0x0 0x00000000 0x90 0x10000000 0x0 0x00010000 /* io */
- 0x02000000 0x0 0x80000000 0x91 0x80000000 0x0 0x80000000>; /* mem */
+ ranges = <0x01000000 0x00 0x00000000 0x90 0x10000000 0x00 0x00010000 /* io */
+ 0x02000000 0x00 0x80000000 0x91 0x80000000 0x00 0x80000000 /* mem */
+ 0x43000000 0x94 0x00000000 0x94 0x00000000 0x04 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
@@ -561,8 +564,9 @@
reg = < 0x00 0x1f500000 0x0 0x00010000 /* Controller registers */
0xa0 0xd0000000 0x0 0x00040000>; /* PCI config space */
reg-names = "csr", "cfg";
- ranges = <0x01000000 0x0 0x00000000 0xa0 0x10000000 0x0 0x00010000 /* io */
- 0x02000000 0x0 0x80000000 0xa1 0x80000000 0x0 0x80000000>; /* mem */
+ ranges = <0x01000000 0x00 0x00000000 0xa0 0x10000000 0x00 0x00010000 /* io */
+ 0x02000000 0x00 0x80000000 0xa1 0x80000000 0x00 0x80000000 /* mem */
+ 0x43000000 0xb0 0x00000000 0xb0 0x00000000 0x10 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
@@ -585,8 +589,9 @@
reg = < 0x00 0x1f510000 0x0 0x00010000 /* Controller registers */
0xc0 0xd0000000 0x0 0x00200000>; /* PCI config space */
reg-names = "csr", "cfg";
- ranges = <0x01000000 0x0 0x00000000 0xc0 0x10000000 0x0 0x00010000 /* io */
- 0x02000000 0x0 0x80000000 0xc1 0x80000000 0x0 0x80000000>; /* mem */
+ ranges = <0x01000000 0x00 0x00000000 0xc0 0x10000000 0x00 0x00010000 /* io */
+ 0x02000000 0x00 0x80000000 0xc1 0x80000000 0x00 0x80000000 /* mem */
+ 0x43000000 0xc8 0x00000000 0xc8 0x00000000 0x08 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c
index f211839e2cae..f9c86c475bbd 100644
--- a/arch/frv/mb93090-mb00/pci-vdk.c
+++ b/arch/frv/mb93090-mb00/pci-vdk.c
@@ -294,8 +294,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
printk("### PCIBIOS_FIXUP_BUS(%d)\n",bus->number);
#endif
- pci_read_bridge_bases(bus);
-
if (bus->number == 0) {
struct pci_dev *dev;
list_for_each_entry(dev, &bus->devices, bus_list) {
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 7cc3be9fa7c6..d89b6013c941 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -533,10 +533,9 @@ void pcibios_fixup_bus(struct pci_bus *b)
{
struct pci_dev *dev;
- if (b->self) {
- pci_read_bridge_bases(b);
+ if (b->self)
pcibios_fixup_bridge_resources(b->self);
- }
+
list_for_each_entry(dev, &b->devices, bus_list)
pcibios_fixup_device_resources(dev);
platform_pci_fixup_bus(b);
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index ae838ed5fcf2..6b8b75266801 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -863,14 +863,7 @@ void pcibios_setup_bus_devices(struct pci_bus *bus)
void pcibios_fixup_bus(struct pci_bus *bus)
{
- /* When called from the generic PCI probe, read PCI<->PCI bridge
- * bases. This is -not- called when generating the PCI tree from
- * the OF device-tree.
- */
- if (bus->self != NULL)
- pci_read_bridge_bases(bus);
-
- /* Now fixup the bus bus */
+ /* Fixup the bus */
pcibios_setup_bus_self(bus);
/* Now fixup devices on that bus */
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index b8a0bf5766f2..c6996cf67a5c 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -311,12 +311,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
void pcibios_fixup_bus(struct pci_bus *bus)
{
- struct pci_dev *dev = bus->self;
-
- if (pci_has_flag(PCI_PROBE_ONLY) && dev &&
- (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
- pci_read_bridge_bases(bus);
- }
}
EXPORT_SYMBOL(PCIBIOS_MIN_IO);
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index 3dfe2d31c67b..deaa893efba5 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -324,7 +324,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
struct pci_dev *dev;
if (bus->self) {
- pci_read_bridge_bases(bus);
pcibios_fixup_bridge_resources(bus->self);
}
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index b9de34d44fcb..02c1d5dcee4d 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1044,13 +1044,7 @@ void pcibios_set_master(struct pci_dev *dev)
void pcibios_fixup_bus(struct pci_bus *bus)
{
- /* When called from the generic PCI probe, read PCI<->PCI bridge
- * bases. This is -not- called when generating the PCI tree from
- * the OF device-tree.
- */
- pci_read_bridge_bases(bus);
-
- /* Now fixup the bus bus */
+ /* Fixup the bus */
pcibios_setup_bus_self(bus);
/* Now fixup devices on that bus */
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index 42e02a2d570b..5e2debfc6ce5 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -126,7 +126,6 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
{
struct pci_dev *dev;
const char *type;
- struct pci_slot *slot;
dev = pci_alloc_dev(bus);
if (!dev)
@@ -145,10 +144,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
dev->needs_freset = 0; /* pcie fundamental reset required */
set_pcie_port_type(dev);
- list_for_each_entry(slot, &dev->bus->slots, list)
- if (PCI_SLOT(dev->devfn) == slot->number)
- dev->slot = slot;
-
+ pci_dev_assign_slot(dev);
dev->vendor = get_int_prop(node, "vendor-id", 0xffff);
dev->device = get_int_prop(node, "device-id", 0xffff);
dev->subsystem_vendor = get_int_prop(node, "subsystem-vendor-id", 0);
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index c928bc64b4ba..3a0e1a986bfe 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -249,7 +249,6 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
struct pci_bus *bus, int devfn)
{
struct dev_archdata *sd;
- struct pci_slot *slot;
struct platform_device *op;
struct pci_dev *dev;
const char *type;
@@ -290,10 +289,7 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
dev->multifunction = 0; /* maybe a lie? */
set_pcie_port_type(dev);
- list_for_each_entry(slot, &dev->bus->slots, list)
- if (PCI_SLOT(dev->devfn) == slot->number)
- dev->slot = slot;
-
+ pci_dev_assign_slot(dev);
dev->vendor = of_getintprop_default(node, "vendor-id", 0xffff);
dev->device = of_getintprop_default(node, "device-id", 0xffff);
dev->subsystem_vendor =
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index 164e3f8d3c3d..fa1195dae425 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -93,8 +93,6 @@ extern raw_spinlock_t pci_config_lock;
extern int (*pcibios_enable_irq)(struct pci_dev *dev);
extern void (*pcibios_disable_irq)(struct pci_dev *dev);
-extern bool mp_should_keep_irq(struct device *dev);
-
struct pci_raw_ops {
int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
int reg, int len, u32 *val);
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 8fd6f44aee83..09d3afc0a181 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -166,7 +166,6 @@ void pcibios_fixup_bus(struct pci_bus *b)
{
struct pci_dev *dev;
- pci_read_bridge_bases(b);
list_for_each_entry(dev, &b->devices, bus_list)
pcibios_fixup_device_resources(dev);
}
@@ -673,24 +672,22 @@ int pcibios_add_device(struct pci_dev *dev)
return 0;
}
-int pcibios_enable_device(struct pci_dev *dev, int mask)
+int pcibios_alloc_irq(struct pci_dev *dev)
{
- int err;
-
- if ((err = pci_enable_resources(dev, mask)) < 0)
- return err;
-
- if (!pci_dev_msi_enabled(dev))
- return pcibios_enable_irq(dev);
- return 0;
+ return pcibios_enable_irq(dev);
}
-void pcibios_disable_device (struct pci_dev *dev)
+void pcibios_free_irq(struct pci_dev *dev)
{
- if (!pci_dev_msi_enabled(dev) && pcibios_disable_irq)
+ if (pcibios_disable_irq)
pcibios_disable_irq(dev);
}
+int pcibios_enable_device(struct pci_dev *dev, int mask)
+{
+ return pci_enable_resources(dev, mask);
+}
+
int pci_ext_cfg_avail(void)
{
if (raw_pci_ext_ops)
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index 27062303c881..22aaefb4f1ca 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -211,7 +211,7 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev)
struct irq_alloc_info info;
int polarity;
- if (dev->irq_managed && dev->irq > 0)
+ if (pci_has_managed_irq(dev))
return 0;
if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_TANGIER)
@@ -234,10 +234,13 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev)
static void intel_mid_pci_irq_disable(struct pci_dev *dev)
{
- if (!mp_should_keep_irq(&dev->dev) && dev->irq_managed &&
- dev->irq > 0) {
+ if (pci_has_managed_irq(dev)) {
mp_unmap_irq(dev->irq);
dev->irq_managed = 0;
+ /*
+ * Don't reset dev->irq here, otherwise
+ * intel_mid_pci_irq_enable() will fail on next call.
+ */
}
}
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 9bd115484745..32e70343e6fd 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1202,7 +1202,7 @@ static int pirq_enable_irq(struct pci_dev *dev)
struct pci_dev *temp_dev;
int irq;
- if (dev->irq_managed && dev->irq > 0)
+ if (pci_has_managed_irq(dev))
return 0;
irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
@@ -1230,8 +1230,7 @@ static int pirq_enable_irq(struct pci_dev *dev)
}
dev = temp_dev;
if (irq >= 0) {
- dev->irq_managed = 1;
- dev->irq = irq;
+ pci_set_managed_irq(dev, irq);
dev_info(&dev->dev, "PCI->APIC IRQ transform: "
"INT %c -> IRQ %d\n", 'A' + pin - 1, irq);
return 0;
@@ -1257,24 +1256,10 @@ static int pirq_enable_irq(struct pci_dev *dev)
return 0;
}
-bool mp_should_keep_irq(struct device *dev)
-{
- if (dev->power.is_prepared)
- return true;
-#ifdef CONFIG_PM
- if (dev->power.runtime_status == RPM_SUSPENDING)
- return true;
-#endif
-
- return false;
-}
-
static void pirq_disable_irq(struct pci_dev *dev)
{
- if (io_apic_assign_pci_irqs && !mp_should_keep_irq(&dev->dev) &&
- dev->irq_managed && dev->irq) {
+ if (io_apic_assign_pci_irqs && pci_has_managed_irq(dev)) {
mp_unmap_irq(dev->irq);
- dev->irq = 0;
- dev->irq_managed = 0;
+ pci_reset_managed_irq(dev);
}
}
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index b848cc3dc913..d27b4dcf221f 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -210,10 +210,6 @@ subsys_initcall(pcibios_init);
void pcibios_fixup_bus(struct pci_bus *bus)
{
- if (bus->parent) {
- /* This is a subordinate bridge */
- pci_read_bridge_bases(bus);
- }
}
void pcibios_set_master(struct pci_dev *dev)
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