I/OAT: Rename the source file

[safe/jmp/linux-2.6] / drivers / clocksource / acpi_pm.c

diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index b6bcdbb..7b46faf 100644 (file)
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -16,31 +16,27 @@
  * This file is licensed under the GPL v2.
  */
 
+#include <linux/acpi_pmtmr.h>
 #include <linux/clocksource.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <asm/io.h>
 
-/* Number of PMTMR ticks expected during calibration run */
-#define PMTMR_TICKS_PER_SEC 3579545
-
 /*
  * The I/O port the PMTMR resides at.
  * The location is detected during setup_arch(),
- * in arch/i386/acpi/boot.c
+ * in arch/i386/kernel/acpi/boot.c
  */
 u32 pmtmr_ioport __read_mostly;
 
-#define ACPI_PM_MASK CLOCKSOURCE_MASK(24) /* limit it to 24 bits */
-
 static inline u32 read_pmtmr(void)
 {
        /* mask the output to 24 bits */
        return inl(pmtmr_ioport) & ACPI_PM_MASK;
 }
 
-static cycle_t acpi_pm_read_verified(void)
+u32 acpi_pm_read_verified(void)
 {
        u32 v1 = 0, v2 = 0, v3 = 0;
 
@@ -57,7 +53,12 @@ static cycle_t acpi_pm_read_verified(void)
        } while (unlikely((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
                          || (v3 > v1 && v3 < v2)));
 
-       return (cycle_t)v2;
+       return v2;
+}
+
+static cycle_t acpi_pm_read_slow(void)
+{
+       return (cycle_t)acpi_pm_read_verified();
 }
 
 static cycle_t acpi_pm_read(void)
@@ -70,9 +71,10 @@ static struct clocksource clocksource_acpi_pm = {
        .rating         = 200,
        .read           = acpi_pm_read,
        .mask           = (cycle_t)ACPI_PM_MASK,
-       .mult           = 0, /*to be caluclated*/
+       .mult           = 0, /*to be calculated*/
        .shift          = 22,
-       .is_continuous  = 1,
+       .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
+
 };
 
 
@@ -87,8 +89,8 @@ __setup("acpi_pm_good", acpi_pm_good_setup);
 
 static inline void acpi_pm_need_workaround(void)
 {
-       clocksource_acpi_pm.read = acpi_pm_read_verified;
-       clocksource_acpi_pm.rating = 110;
+       clocksource_acpi_pm.read = acpi_pm_read_slow;
+       clocksource_acpi_pm.rating = 120;
 }
 
 /*
@@ -103,14 +105,11 @@ static inline void acpi_pm_need_workaround(void)
  */
 static void __devinit acpi_pm_check_blacklist(struct pci_dev *dev)
 {
-       u8 rev;
-
        if (acpi_pm_good)
                return;
 
-       pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
        /* the bug has been fixed in PIIX4M */
-       if (rev < 3) {
+       if (dev->revision < 3) {
                printk(KERN_WARNING "* Found PM-Timer Bug on the chipset."
                       " Due to workarounds for a bug,\n"
                       "* this clock source is slow. Consider trying"
@@ -212,4 +211,7 @@ pm_good:
        return clocksource_register(&clocksource_acpi_pm);
 }
 
-module_init(init_acpi_pm_clocksource);
+/* We use fs_initcall because we want the PCI fixups to have run
+ * but we still need to load before device_initcall
+ */
+fs_initcall(init_acpi_pm_clocksource);