[PATCH 01/12] PCI Hotplug: cpqphp: use config space PCI interrupt pin encoding

Bjorn Helgaas
2008-12-09T23:11:41Z

This patch changes cpqphp to use interrupt pin values just as they
come from PCI config space, i.e., 1=INTA, ..., 4=INTD.

pcibios_set_irq_routing() takes pin arguments in the range 0=INTA, ...,
3=INTD, so we'll adjust the pin just before calling it.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Alex Chiang <achiang@hp.com>
---
drivers/pci/hotplug/cpqphp_ctrl.c | 4 ++--
drivers/pci/hotplug/cpqphp_pci.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index a60a252..d947221 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -2604,7 +2604,7 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func
for (cloop = 0; cloop < 4; cloop++) {
if (irqs.valid_INT & (0x01 << cloop)) {
rc = cpqhp_set_irq(func->bus, func->device,
- 0x0A + cloop, irqs.interrupt[cloop]);
+ cloop + 1, irqs.interrupt[cloop]);
if (rc)
goto free_and_out;
}
@@ -2945,7 +2945,7 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func
}

if (!behind_bridge) {
- rc = cpqhp_set_irq(func->bus, func->device, temp_byte + 0x09, IRQ);
+ rc = cpqhp_set_irq(func->bus, func->device, temp_byte, IRQ);
if (rc)
return 1;
} else {
diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c
index 0902193..125d287 100644
--- a/drivers/pci/hotplug/cpqphp_pci.c
+++ b/drivers/pci/hotplug/cpqphp_pci.c
@@ -171,7 +171,7 @@ int cpqhp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num)
fakebus->number = bus_num;
dbg("%s: dev %d, bus %d, pin %d, num %d\n",
__func__, dev_num, bus_num, int_pin, irq_num);
- rc = pcibios_set_irq_routing(fakedev, int_pin - 0x0a, irq_num);
+ rc = pcibios_set_irq_routing(fakedev, int_pin - 1, irq_num);
kfree(fakedev);
kfree(fakebus);
dbg("%s: rc %d\n", __func__, rc);