* Keerthy <a0393675@xxxxxx> [140709 03:39]: > On Wednesday 09 July 2014 03:39 PM, Tony Lindgren wrote: > >* Keerthy <a0393675@xxxxxx> [140709 02:36]: > >>On Wednesday 09 July 2014 02:42 PM, Tony Lindgren wrote: > >>>* Lokesh Vutla <lokeshvutla@xxxxxx> [140709 01:37]: > >>>>--- a/arch/arm/boot/dts/dra7-evm.dts > >>>>+++ b/arch/arm/boot/dts/dra7-evm.dts > >>>>@@ -249,6 +249,7 @@ > >>>> regulator-min-microvolt = <1050000>; > >>>> regulator-max-microvolt = <1050000>; > >>>> regulator-boot-on; > >>>>+ regulator-always-on; > >>>> }; > >>>Is this regulator really always on? > >>This feeds on to RTC which is a free running clock. So i guess always on is > >>justified no? > >Well the dts entries should describe the hardware. If the > >regulator can be enabled and disabled, we should not claim it's > >always on. > > From the PMIC perspective every regulator can be enabled and > disabled. From a Board perspective there are some which need > to be always on. For Ex: SMPS123 which feeds on to the MPU. Right, and we already have regulator-boot-on for those. Or are you seeing some issue with that? > I guess RTC also needs the supply to be on as long as we want > the clock to be ticking. Sure, but if somebody wants shut it off regulator-boot-on is better from driver point of view. Regards, Tony -- 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
