Subject: [PATCH V2 2/2] ARM: dts: DRA7: Add node for RTC

From: [email-masked] (Keerthy)
Date: Wed, 9 Jul 2014 16:05:36 +0530

On Wednesday 09 July 2014 03:39 PM, Tony Lindgren wrote:
> * Keerthy <[email-masked]> [140709 02:36]:
>> On Wednesday 09 July 2014 02:42 PM, Tony Lindgren wrote:
>>> * Lokesh Vutla <[email-masked]> [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.

I guess RTC also needs the supply to be on as long as we want
the clock to be ticking.

> Also adding temporary dts entries just causes more churn on the
> dts files which is a PITA for everybody.
>
> Regards,
>
> Tony

Regards,
Keerthy