From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
To: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>,
rtc-linux@googlegroups.com, Jason Cooper <jason@lakedaemon.net>,
Andrew Lunn <andrew@lunn.ch>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
linux-arm-kernel@lists.infradead.org,
Maxime Ripard <maxime.ripard@free-electrons.com>,
Boris BREZILLON <boris.brezillon@free-electrons.com>,
Lior Amsalem <alior@marvell.com>,
Tawfik Bayouk <tawfik@marvell.com>,
Nadav Haklai <nadavh@marvell.com>
Subject: [rtc-linux] Re: [PATCH] rtc: armada38x: Align RTC set time procedure with the official errata
Date: Tue, 18 Aug 2015 11:21:52 +0200 [thread overview]
Message-ID: <20150818092152.GV22269@piout.net> (raw)
In-Reply-To: <1438874328-31844-1-git-send-email-gregory.clement@free-electrons.com>
On 06/08/2015 at 17:18:48 +0200, Gregory CLEMENT wrote :
> From: Nadav Haklai <nadavh@marvell.com>
>
> According to the Armada38x functional errata FE-3124064, writing to
> the RTC TIME register may fail. As a workaround, after writing to RTC
> TIME register, issue a dummy write of 0x0 twice to the RTC Status
> register. This is the updated implementation of the Errata that
> eliminates the need of the long 100ms delay during the RTC set time
> procedure.
>
> [gregory.clement@free-electrons.com]: removed the mutex and use the
> spinlock again
>
> Signed-off-by: Nadav Haklai <nadavh@marvell.com>
> Reviewed-by: Neta Zur Hershkovits <neta@marvell.com>
> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Applied, thanks.
--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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prev parent reply other threads:[~2015-08-18 9:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-06 15:18 [rtc-linux] [PATCH] rtc: armada38x: Align RTC set time procedure with the official errata Gregory CLEMENT
2015-08-18 9:21 ` Alexandre Belloni [this message]
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