[PATCH] Time: i386 Clocksource Drivers

Implement the time sources for i386 (acpi_pm, cyclone, hpet, pit, and tsc).
With this patch, the conversion of the i386 arch to the generic timekeeping
code should be complete.

The patch should be fairly straight forward, only adding the new clocksources.

[hirofumi@mail.parknet.co.jp: acpi_pm cleanup]
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 8 insertions, 3 deletions

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 4288bfa12c3f..a9f387ea83b0 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -174,7 +174,7 @@ EXPORT_SYMBOL(register_clocksource);
  * reselect_clocksource - Rescan list for next clocksource
  *
  * A quick helper function to be used if a clocksource changes its
- * rating. Forces the clocksource list to be re-scaned for the best
+ * rating. Forces the clocksource list to be re-scanned for the best
  * clocksource.
  */
 void reselect_clocksource(void)
@@ -336,8 +336,13 @@ __setup("clocksource=", boot_override_clocksource);
  */
 static int __init boot_override_clock(char* str)
 {
-        printk("Warning! clock= boot option is deprecated.\n");
-
+        if (!strcmp(str, "pmtmr")) {
+                printk("Warning: clock=pmtmr is deprecated. "
+                        "Use clocksource=acpi_pm.\n");
+                return boot_override_clocksource("acpi_pm");
+        }
+        printk("Warning! clock= boot option is deprecated. "
+                "Use clocksource=xyz\n");
         return boot_override_clocksource(str);
 }