[rtc-linux] Re: [PATCH] rtc: pcf8563: disable CLKOUT

[Heiko Schocher <hs@denx.de>]

Hello Alexandre,

Am 13.10.2015 um 22:17 schrieb Alexandre Belloni:
> Hi,
>
> On 13/10/2015 at 07:08:58 +0200, Heiko Schocher wrote :
>> Disable the CLKOUT of the RTC after power-up.
>> After power-up/reset of the RTC, CLKOUT is enabled by default,
>> with CLKOUT enabled the RTC chip has 2-3 times higher power
>> consumption. If you do not need CLKOUT, you can disable the
>> CLKOUT with setting "disable-clkout" property.
>>
>
> I think you can simply unconditionally disable clkout. My preferred way
> of doing what you suggest is probably to register a clock in the CCF. If
> the clock is not used, it will be automatically disabled.
> It will also provide a generic way of setting the clkout frequency (some
> RTC are able to output 32kHZ, 1kHz and 1Hz).

Does disabling it ot break some boards?

I take a look into CCF, good idea.

bye,
Heiko
-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

-- 
-- 
You received this message because you are subscribed to "rtc-linux".
Membership options at http://groups.google.com/group/rtc-linux .
Please read http://groups.google.com/group/rtc-linux/web/checklist
before submitting a driver.
--- 
You received this message because you are subscribed to the Google Groups "rtc-linux" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rtc-linux+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.