From: Hemant Pedanekar Date: Wed, 10 Aug 2011 13:19:35 +0000 (+0000) Subject: omap: timer: Set dmtimer used as clocksource in autoreload mode X-Git-Tag: v3.1-rc2~18^2^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e9d0b97eef235eccc3df9ddb9895b35c53a8aaa2;p=platform%2Fkernel%2Flinux-3.10.git omap: timer: Set dmtimer used as clocksource in autoreload mode If CONFIG_OMAP_32K_TIMER is not selected and dmtimer is used as clocksource, the timer stops counting once overflow occurs as it was not set in autoreload mode. This results into timekeeping failure: for example, 'sleep 1' at the shell after the timer counter overflow would hang. This patch sets up autoreload when starting the clocksource timer which fixes the above issue. Signed-off-by: Hemant Pedanekar Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index e964072..cf1de7d 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -293,7 +293,8 @@ static void __init omap2_gp_clocksource_init(int gptimer_id, pr_info("OMAP clocksource: GPTIMER%d at %lu Hz\n", gptimer_id, clksrc.rate); - __omap_dm_timer_load_start(clksrc.io_base, OMAP_TIMER_CTRL_ST, 0, 1); + __omap_dm_timer_load_start(clksrc.io_base, + OMAP_TIMER_CTRL_ST | OMAP_TIMER_CTRL_AR, 0, 1); init_sched_clock(&cd, dmtimer_update_sched_clock, 32, clksrc.rate); if (clocksource_register_hz(&clocksource_gpt, clksrc.rate))