On Thu, Jul 23, 2015 at 10:57:18AM +0900, Chanwoo Choi wrote: > +static int exynos_ppmu_v2_disable(struct devfreq_event_dev *edev) > +{ > + struct exynos_ppmu *info = devfreq_event_get_drvdata(edev); > + u32 pmnc, clear; > + > + /* Disable all counters */ > + clear = (PPMU_CCNT_MASK | PPMU_PMCNT0_MASK | PPMU_PMCNT1_MASK > + | PPMU_PMCNT2_MASK | PPMU_PMCNT3_MASK); > + > + __raw_writel(clear, info->ppmu.base + PPMUv2_FLAG); Why aren't you using normal readl()/writel()? What are the endiannesses here? regards, dan carpenter -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html