linux-kernel - Re: [PATCH v5 02/11] timekeeping: Add function to convert realtime to base clock

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Date: Wed, 20 Mar 2024 12:29:07 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: lakshmi.sowjanya.d@...el.com, jstultz@...gle.com, giometti@...eenne.com,
 corbet@....net, linux-kernel@...r.kernel.org
Cc: x86@...nel.org, netdev@...r.kernel.org, linux-doc@...r.kernel.org,
 intel-wired-lan@...ts.osuosl.org, andriy.shevchenko@...ux.intel.com,
 eddie.dong@...el.com, christopher.s.hall@...el.com,
 jesse.brandeburg@...el.com, davem@...emloft.net,
 alexandre.torgue@...s.st.com, joabreu@...opsys.com,
 mcoquelin.stm32@...il.com, perex@...ex.cz, linux-sound@...r.kernel.org,
 anthony.l.nguyen@...el.com, peter.hilber@...nsynergy.com,
 pandith.n@...el.com, mallikarjunappa.sangannavar@...el.com,
 subramanian.mohan@...el.com, basavaraj.goudar@...el.com,
 thejesh.reddy.t.r@...el.com, lakshmi.sowjanya.d@...el.com
Subject: Re: [PATCH v5 02/11] timekeeping: Add function to convert realtime
 to base clock

On Tue, Mar 19 2024 at 18:35, lakshmi.sowjanya.d@...el.com wrote:
> From: Lakshmi Sowjanya D <lakshmi.sowjanya.d@...el.com>
>
> PPS(Pulse Per Second) generates signals in realtime, but Timed IO
> hardware understands time in base clock reference. Add an interface,
> ktime_real_to_base_clock() to convert realtime to base clock.
>
> Convert the base clock to the system clock using convert_base_to_cs() in
> get_device_system_crosststamp().

This really is doing two unrelated things. ktime_real_to_base_clock()
has absolutely nothing to do with the clocksource_base related changes
to get_device_system_crosststamp()