Hi Lee, On Fri, 27 Feb 2015, Lee Jones wrote: > Some hardware contains bunches of clocks which must never be > turned off. If drivers a) fail to obtain a reference to any > of these or b) give up a previously obtained reference > during suspend, the common clk framework will attempt to > disable them and a platform can fail irrecoverably as a > result. Usually the only way to recover from these failures > is to reboot. > > To avoid either of these two scenarios from catastrophically > disabling an otherwise perfectly healthy running system, > clocks can be identified as always-on using this property > from inside a clocksource's node. The CLK_IGNORE_UNUSED > flag will be applied to each clock instance named in this > property, thus preventing them from being shut down by the > framework. Great stuff. One minor comment is that assuming this works on stih407 and stih410 to the extent that the platform can now boot without clk_ignore_unused kenel parameter then you should have an additional patch to remove clk_ignore_unused from the default bootargs in stih407-b2120.dts and stih410-b2120.dts files. Maxime - Is it possible for you to test this series on stih418-b2199 as a well? As it could most likely also be removed from stih418-b2199.dts file to, but neither Lee or myself have the hardware to test. Apart from that, for the series: - Acked-by: Peter Griffin <peter.griffin@xxxxxxxxxx> regards, Peter. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
