[PATCH] hpet: allow non-power-of-two frequencies

It was only the RTC hardware that restricted interrupt frequencies to a power
of two.  There is no reason to take over this restriction into the HPET
driver, so remove the offending check.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Acked-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index e3c7c00..85d39ff 100644 (file)
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -519,7 +519,7 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
                        break;
                }
 
-               if (!arg || (arg & (arg - 1))) {
+               if (!arg) {
                        err = -EINVAL;
                        break;
                }