Subject: [4.4-rc][PATCH v2] ARM: dts: am4372: fix clock source for arm twd and global timers

From: [email-masked] (Felipe Balbi)
Date: Tue, 8 Dec 2015 12:03:55 -0600

Hi,

Grygorii Strashko <[email-masked]> 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 <[email-masked]>
> Cc: Felipe Balbi <[email-masked]>
> Cc: Tero Kristo <[email-masked]>
> Fixes:commit 8cbd4c2f6a99 ("arm: boot: dts: am4372: add ARM timers and SCU nodes")
> Signed-off-by: Grygorii Strashko <[email-masked]>

this seems to be the best fix for this problem, yeah.

Reviewed-by: Felipe Balbi <[email-masked]>

-- 
balbi
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