From: Keerthy <a0393675-l0cyMroinI0@public.gmane.org>
To: Paul Walmsley <paul-DWxLp4Yu+b8AvxtiuMwx3w@public.gmane.org>,
Keerthy <j-keerthy-l0cyMroinI0@public.gmane.org>,
alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org
Cc: tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
pawel.moll-5wv7dgnIgG8@public.gmane.org,
galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
johan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
grygorii.strashko-l0cyMroinI0@public.gmane.org,
rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
bcousson-rdvid1DuHRBWk0Htik3J/w@public.gmane.org,
nm-l0cyMroinI0@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
t-kristo-l0cyMroinI0@public.gmane.org
Subject: Re: [PATCH v2 2/6] rtc: omap: Add external clock enabling support
Date: Thu, 13 Aug 2015 00:38:50 +0530 [thread overview]
Message-ID: <55CB99C2.7010007@ti.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1508121422020.7154-rwI8Ez+7Ko+d5PgPZx9QOdBPR1lH4CV8@public.gmane.org>
On Wednesday 12 August 2015 07:57 PM, Paul Walmsley wrote:
> On Mon, 10 Aug 2015, Keerthy wrote:
>
>> Switch to external clock source during suspend and switch back
>> to internal source on resume. This helps rtc ticking across suspend.
>
> Doesn't this type of dynamic switching make it likely that ticks will be
> lost?
>
> If the external, optional source is present, isn't it best just to use the
> external source 100% of the time?
Paul,
The intent here is to switch to a higher precision clock which is the
internal clock when available.
Alexandre,
Is dynamic switching preferred over sticking to external clock always
if present?
Regards,
Keerthy
>
>
> - Paul
>
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next prev parent reply other threads:[~2015-08-12 19:08 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-10 9:28 [PATCH v2 0/6] ARM: AM4372: Enable RTC Keerthy
[not found] ` <1439198906-31189-1-git-send-email-j-keerthy-l0cyMroinI0@public.gmane.org>
2015-08-10 9:28 ` [PATCH v2 1/6] ARM: dts: AM43XX: Add clk_32k_rtc node Keerthy
2015-08-10 9:28 ` [PATCH v2 2/6] rtc: omap: Add external clock enabling support Keerthy
[not found] ` <1439198906-31189-3-git-send-email-j-keerthy-l0cyMroinI0@public.gmane.org>
2015-08-11 14:00 ` Alexandre Belloni
2015-08-12 14:27 ` Paul Walmsley
[not found] ` <alpine.DEB.2.02.1508121422020.7154-rwI8Ez+7Ko+d5PgPZx9QOdBPR1lH4CV8@public.gmane.org>
2015-08-12 19:08 ` Keerthy [this message]
[not found] ` <55CB99C2.7010007-l0cyMroinI0@public.gmane.org>
2015-08-12 20:16 ` Alexandre Belloni
[not found] ` <20150812201636.GJ3411-m++hUPXGwpdeoWH0uzbU5w@public.gmane.org>
2015-08-13 20:17 ` Paul Walmsley
[not found] ` <alpine.DEB.2.02.1508131822510.1009-rwI8Ez+7Ko+d5PgPZx9QOdBPR1lH4CV8@public.gmane.org>
2015-08-14 4:55 ` Keerthy
2015-08-14 8:29 ` Alexandre Belloni
2015-08-10 9:28 ` [PATCH v2 3/6] ARM: AM43xx: Introduce a separate soc_is function for am438x series of SoCs Keerthy
[not found] ` <1439198906-31189-4-git-send-email-j-keerthy-l0cyMroinI0@public.gmane.org>
2015-08-11 12:55 ` Tony Lindgren
[not found] ` <20150811125515.GN4215-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2015-08-11 17:54 ` Keerthy
[not found] ` <55CA36D2.3080509-l0cyMroinI0@public.gmane.org>
2015-08-12 8:37 ` Tony Lindgren
[not found] ` <20150812083718.GS4215-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2015-08-13 6:59 ` Keerthy
2015-08-13 9:04 ` Keerthy
[not found] ` <55CC5DB4.7040704-l0cyMroinI0@public.gmane.org>
2015-08-13 9:59 ` Tony Lindgren
2015-08-10 9:28 ` [PATCH v2 4/6] ARM: dts: am43x-epos-evm: Add the am438 compatible string Keerthy
2015-08-10 9:28 ` [PATCH v2 5/6] ARM: AM43XX: HWMOD: Add rtc hwmod Keerthy
[not found] ` <1439198906-31189-6-git-send-email-j-keerthy-l0cyMroinI0@public.gmane.org>
2015-08-12 14:39 ` Paul Walmsley
[not found] ` <alpine.DEB.2.02.1508121434190.7154-rwI8Ez+7Ko+d5PgPZx9QOdBPR1lH4CV8@public.gmane.org>
2015-08-13 6:39 ` Tero Kristo
2015-08-10 9:28 ` [PATCH v2 6/6] ARM: dts: AM437X-GP-EVM: Enable rtc Keerthy
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