Without this change a saw an 18% increase in idle power consumption on one deivce when trace support is compiled into the kernel. Now I see the same increase only when tracing.
Signed-off-by: Arve Hjønnevåg <[email protected]> --- arch/arm/kernel/etm.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c index 48de5a4..f2bc95e 100644 --- a/arch/arm/kernel/etm.c +++ b/arch/arm/kernel/etm.c @@ -199,7 +199,7 @@ static int trace_stop_etm(struct tracectx *t, int id) etm_unlock(t, id); - etm_writel(t, id, 0x440, ETMR_CTRL); + etm_writel(t, id, 0x441, ETMR_CTRL); while (!(etm_readl(t, id, ETMR_CTRL) & ETMCTRL_PROGRAM) && --timeout) ; if (!timeout) { @@ -738,7 +738,7 @@ static int __init etm_probe(struct amba_device *dev, struct amba_id *id) (void)etm_readl(&tracer, t->etm_regs_count, ETMMR_OSSRR); t->ncmppairs = etm_readl(t, t->etm_regs_count, ETMR_CONFCODE) & 0xf; - etm_writel(t, t->etm_regs_count, 0x440, ETMR_CTRL); + etm_writel(t, t->etm_regs_count, 0x441, ETMR_CTRL); etm_writel(t, t->etm_regs_count, new_count, ETMR_TRACEIDR); etm_lock(t, t->etm_regs_count); -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
