Thread (53 messages) 53 messages, 9 authors, 2010-10-02

Re: [PATCH 6/8] ptp: Added a clock that uses the eTSEC found on the MPC85xx.

From: Alan Cox <hidden>
Date: 2010-09-23 20:21:31
Also in: linux-arm-kernel, linux-devicetree, linuxppc-dev, lkml, netdev

Please do not introduce useless additional layers for clock sync. Load
these ptp clocks like the other regular clock modules and make them sync
system time like any other clock.
I don't think you understand PTP. PTP has masters, a system can need to
be honouring multiple conflicting masters at once.
Really guys: I want a PTP solution! Now! And not some idiotic additional
kernel layers that just pass bits around because its so much fun and
screws up clock accurary in due to the latency noise introduced while
having so much fun with the bits.
There are some interesting complications in putting a PTP sync
interface in kernel.
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