linux-kernel - Re: [PATCH] fix RTC_CLASS regression with PARISC

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Message-Id: <20080908.164427.216880550.davem@davemloft.net>
Date:	Mon, 08 Sep 2008 16:44:27 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	david-b@...bell.net
Cc:	James.Bottomley@...senpartnership.com,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-parisc@...r.kernel.org,
	alessandro.zummo@...ertech.it
Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC

From: David Brownell <david-b@...bell.net>
Date: Mon, 8 Sep 2008 16:29:20 -0700

> That said, there's a bit of unresolved stuff around NTP hooks
> in the kernel.  Some patches are pending to let thtem work with
> the RTC framework -- where writing an RTC may need to sleep,
> for example because the RTC is on an I2C or SPI bus.  And
> then there's the discussion of whether that shouldn't all be
> handled by NTPD anyway, no special kernel support desired.
> Alessandro has opinions there.  ;)

My update_persistent_clock() on sparc64 is:

int update_persistent_clock(struct timespec now)
{
	struct rtc_device *rtc = rtc_class_open("rtc0");

	if (rtc)
		return rtc_set_mmss(rtc, now.tv_sec);

	return -1;
}

and that should handle this NTP shouldn't it?
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