Messages in this thread | | | Subject | Re: [PATCH] rtc: pcf8563: disable CLKOUT | From | Heiko Schocher <> | Date | Wed, 14 Oct 2015 06:19:29 +0200 |
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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
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