ACPI: PCI: use 1-based encoding for _PRT quirks

Use the PCI INTx pin encoding (1=INTA, 2=INTB, etc) for _PRT quirks.
Then we can simply compare "entry->pin == quirk->pin".

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 2c52cf0004b..c4a5c49809d 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -145,19 +145,21 @@ struct prt_quirk {
         char                    *actual_source;
 };
 
+#define PCI_INTX_PIN(c)         (c - 'A' + 1)
+
 /*
  * These systems have incorrect _PRT entries.  The BIOS claims the PCI
  * interrupt at the listed segment/bus/device/pin is connected to the first
  * link device, but it is actually connected to the second.
  */
 static struct prt_quirk prt_quirks[] = {
-        { medion_md9580, 0, 0, 9, 'A',
+        { medion_md9580, 0, 0, 9, PCI_INTX_PIN('A'),
                 "\\_SB_.PCI0.ISA_.LNKA",
                 "\\_SB_.PCI0.ISA_.LNKB"},
-        { dell_optiplex, 0, 0, 0xd, 'A',
+        { dell_optiplex, 0, 0, 0xd, PCI_INTX_PIN('A'),
                 "\\_SB_.LNKB",
                 "\\_SB_.LNKA"},
-        { hp_t5710, 0, 0, 1, 'A',
+        { hp_t5710, 0, 0, 1, PCI_INTX_PIN('A'),
                 "\\_SB_.PCI0.LNK1",
                 "\\_SB_.PCI0.LNK3"},
 };
@@ -179,7 +181,7 @@ do_prt_fixups(struct acpi_prt_entry *entry, struct acpi_pci_routing_table *prt)
                     entry->id.segment == quirk->segment &&
                     entry->id.bus == quirk->bus &&
                     entry->id.device == quirk->device &&
-                    pin_name(entry->pin) == quirk->pin &&
+                    entry->pin == quirk->pin &&
                     !strcmp(prt->source, quirk->source) &&
                     strlen(prt->source) >= strlen(quirk->actual_source)) {
                         printk(KERN_WARNING PREFIX "firmware reports "