| commit | 72d43d9bc9210d24d09202eaf219eac09e17b339 | [log] [tgz] |
|---|---|---|
| author | Thomas Gleixner <tglx@linutronix.de> | Sat Sep 06 03:06:08 2008 +0200 |
| committer | Thomas Gleixner <tglx@linutronix.de> | Sat Sep 06 07:21:17 2008 +0200 |
| tree | 0ec1d67060e32ad3e2b3772d0c0cb33a8809b594 | |
| parent | f7676254f179eac6b5244a80195ec8ae0e9d4606 [diff] |
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>