Russell King - ARM Linux wrote: > Stop bodging stuff (like you have for the SCU stuff.) and start _talking_ > to people if the code doesn't do what you need it to do. Hi Russell and all, I'd like to share requirement of EXYNOS4210 PM. Now if there is wakeup source which is pending before entering suspend mode, PMU(Power Management Unit) handles WFI instruction as NOP on EXYNOS4210. But it seems that current cpu_suspend() cannot support this. So how can/should we handle this case? And this is another case. For example, assume that ARM is power down mode and outer cache(L2 cache) data is retention state to use L2 cache data after wakeup. In this case, according to wakeup sequence, firstly L1 cache is enabled in cpu_resume() then L2 cache will be enabled which is implemented in Samsung SoC specific code. So how can be handled the coherency problem between L1 cache and L2 cache? Thanks. Best regards, Kgene. -- Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer, SW Solution Development Team, Samsung Electronics Co., Ltd. -- 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
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