[PATCH 0/40] Complete set of clocksource/sched_clock patches
From: Russell King - ARM Linux <hidden>
Date: 2010-12-19 14:49:50
Also in:
linux-omap, linux-samsung-soc
On Sun, Dec 19, 2010 at 03:05:56PM +0100, Mikael Pettersson wrote:
tmr = timer mode register tcr = timer counter register trr = timer reload register When a timer is in periodic mode it reloads itself from its reload register when the counter register decrements to zero.
Ok.
> Does trr need to be written in
> ->set_mode (if so that's another bug in this code)?
trr{0,1} need not and should not be changed after iop_time_init().It sounds like trr0 needs to be written in ->set_mode's CLOCK_EVT_MODE_PERIODIC path then, because with my patch, we never set this register. Or will trr0 be updated when we write tcr0 ?