From mboxrd@z Thu Jan  1 00:00:00 1970
From: tony@atomide.com (Tony Lindgren)
Date: Wed, 9 Dec 2015 16:47:02 -0800
Subject: [4.4-rc][PATCH v2] ARM: dts: am4372: fix clock source for arm
 twd and global timers
In-Reply-To: <87wpsolsvo.fsf@saruman.tx.rr.com>
References: <1448898998-32749-1-git-send-email-grygorii.strashko@ti.com>
 <87wpsolsvo.fsf@saruman.tx.rr.com>
Message-ID: <20151210004702.GD23396@atomide.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

* Felipe Balbi <balbi@ti.com> [151208 10:05]:
> 
> Hi,
> 
> Grygorii Strashko <grygorii.strashko@ti.com> writes:
> > ARM TWD and Global timer are clocked by PERIPHCLK which is MPU_CLK/2.
> > But now they are clocked by dpll_mpu_m2_ck == MPU_CLK and, as result.
> > Timekeeping core misbehaves. For example, execution of command
> > "sleep 5" will take 10 sec instead of 5.
> >
> > Hence, fix it by adding mpu_periphclk ("fixed-factor-clock") and use
> > it for clocking ARM TWD and Global timer (same way as on OMAP4).
> >
> > Cc: Tony Lindgren <tony@atomide.com>
> > Cc: Felipe Balbi <balbi@ti.com>
> > Cc: Tero Kristo <t-kristo@ti.com>
> > Fixes:commit 8cbd4c2f6a99 ("arm: boot: dts: am4372: add ARM timers and SCU nodes")
> > Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
> 
> this seems to be the best fix for this problem, yeah.
> 
> Reviewed-by: Felipe Balbi <balbi@ti.com>

OK applying into omap-for-v4.4/fixes thanks.

Tony