diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2008-09-06 03:06:08 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-09-06 07:21:17 +0200 |
| commit | 72d43d9bc9210d24d09202eaf219eac09e17b339 (patch) | |
| tree | 0ec1d67060e32ad3e2b3772d0c0cb33a8809b594 /kernel/time | |
| parent | x86: HPET fix moronic 32/64bit thinko (diff) | |
| download | linux-dev-72d43d9bc9210d24d09202eaf219eac09e17b339.tar.xz linux-dev-72d43d9bc9210d24d09202eaf219eac09e17b339.zip | |
x86: HPET: read back compare register before reading counter
After fixing the u32 thinko I sill had occasional hickups on ATI chipsets
with small deltas. There seems to be a delay between writing the compare
register and the transffer to the internal register which triggers the
interrupt. Reading back the value makes sure, that it hit the internal
match register befor we compare against the counter value.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/time')
0 files changed, 0 insertions, 0 deletions