Merge tag 'v3.3-rc1' into staging/for_v3.3

* tag 'v3.3-rc1': (8187 commits)
  Linux 3.3-rc1
  x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits
  qnx4: don't leak ->BitMap on late failure exits
  qnx4: reduce the insane nesting in qnx4_checkroot()
  qnx4: di_fname is an array, for crying out loud...
  KEYS: Permit key_serial() to be called with a const key pointer
  keys: fix user_defined key sparse messages
  ima: fix cred sparse warning
  uml: fix compile for x86-64
  MPILIB: Add a missing ENOMEM check
  tpm: fix (ACPI S3) suspend regression
  nvme: fix merge error due to change of 'make_request_fn' fn type
  xen: using EXPORT_SYMBOL requires including export.h
  gpio: tps65910: Use correct offset for gpio initialization
  acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec
  intel_idle: Split up and provide per CPU initialization func
  ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2
  tg3: Fix single-vector MSI-X code
  openvswitch: Fix multipart datapath dumps.
  ipv6: fix per device IP snmp counters
  ...

1 files changed, 51 insertions, 11 deletions

diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index 1b51d8b7ac80..f59244e33971 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -21,48 +21,58 @@ static void bcma_host_pci_switch_core(struct bcma_device *core)
 	pr_debug("Switched to core: 0x%X\n", core->id.id);
 }
 
-static u8 bcma_host_pci_read8(struct bcma_device *core, u16 offset)
+/* Provides access to the requested core. Returns base offset that has to be
+ * used. It makes use of fixed windows when possible. */
+static u16 bcma_host_pci_provide_access_to_core(struct bcma_device *core)
 {
+	switch (core->id.id) {
+	case BCMA_CORE_CHIPCOMMON:
+		return 3 * BCMA_CORE_SIZE;
+	case BCMA_CORE_PCIE:
+		return 2 * BCMA_CORE_SIZE;
+	}
+
 	if (core->bus->mapped_core != core)
 		bcma_host_pci_switch_core(core);
+	return 0;
+}
+
+static u8 bcma_host_pci_read8(struct bcma_device *core, u16 offset)
+{
+	offset += bcma_host_pci_provide_access_to_core(core);
 	return ioread8(core->bus->mmio + offset);
 }
 
 static u16 bcma_host_pci_read16(struct bcma_device *core, u16 offset)
 {
-	if (core->bus->mapped_core != core)
-		bcma_host_pci_switch_core(core);
+	offset += bcma_host_pci_provide_access_to_core(core);
 	return ioread16(core->bus->mmio + offset);
 }
 
 static u32 bcma_host_pci_read32(struct bcma_device *core, u16 offset)
 {
-	if (core->bus->mapped_core != core)
-		bcma_host_pci_switch_core(core);
+	offset += bcma_host_pci_provide_access_to_core(core);
 	return ioread32(core->bus->mmio + offset);
 }
 
 static void bcma_host_pci_write8(struct bcma_device *core, u16 offset,
 				 u8 value)
 {
-	if (core->bus->mapped_core != core)
-		bcma_host_pci_switch_core(core);
+	offset += bcma_host_pci_provide_access_to_core(core);
 	iowrite8(value, core->bus->mmio + offset);
 }
 
 static void bcma_host_pci_write16(struct bcma_device *core, u16 offset,
 				 u16 value)
 {
-	if (core->bus->mapped_core != core)
-		bcma_host_pci_switch_core(core);
+	offset += bcma_host_pci_provide_access_to_core(core);
 	iowrite16(value, core->bus->mmio + offset);
 }
 
 static void bcma_host_pci_write32(struct bcma_device *core, u16 offset,
 				 u32 value)
 {
-	if (core->bus->mapped_core != core)
-		bcma_host_pci_switch_core(core);
+	offset += bcma_host_pci_provide_access_to_core(core);
 	iowrite32(value, core->bus->mmio + offset);
 }
 
@@ -224,6 +234,35 @@ static void bcma_host_pci_remove(struct pci_dev *dev)
 	pci_set_drvdata(dev, NULL);
 }
 
+#ifdef CONFIG_PM
+static int bcma_host_pci_suspend(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct bcma_bus *bus = pci_get_drvdata(pdev);
+
+	bus->mapped_core = NULL;
+
+	return bcma_bus_suspend(bus);
+}
+
+static int bcma_host_pci_resume(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct bcma_bus *bus = pci_get_drvdata(pdev);
+
+	return bcma_bus_resume(bus);
+}
+
+static SIMPLE_DEV_PM_OPS(bcma_pm_ops, bcma_host_pci_suspend,
+			 bcma_host_pci_resume);
+#define BCMA_PM_OPS	(&bcma_pm_ops)
+
+#else /* CONFIG_PM */
+
+#define BCMA_PM_OPS     NULL
+
+#endif /* CONFIG_PM */
+
 static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) },
@@ -239,6 +278,7 @@ static struct pci_driver bcma_pci_bridge_driver = {
 	.id_table = bcma_pci_bridge_tbl,
 	.probe = bcma_host_pci_probe,
 	.remove = bcma_host_pci_remove,
+	.driver.pm = BCMA_PM_OPS,
 };
 
 int __init bcma_host_pci_init(void)