linux-kernel - RE: [PATCH 2/5] Clocksource: Flextimer: Use internal clocksource read API.

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Message-ID: <711bc48a692a420589ff4b5ad48d6b4c@BY2PR0301MB0613.namprd03.prod.outlook.com>
Date:	Thu, 4 Sep 2014 08:53:35 +0000
From:	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	"daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
	"Dongsheng.Wang@...escale.com" <Dongsheng.Wang@...escale.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 2/5] Clocksource: Flextimer: Use internal clocksource read
 API.

Hi Thomas,

> > > > Since the FTM will be in BE mode on LS1 platform, but will be in LE mode
> > > > On LS2 platform.
> > > >
> > > > And ftm_clocksource_read_up() will adapt to this different.
> > >
> > > You are missing the point. Why do you want a conditional in a hot
> > > path? You know at init time whether the thing is BE or LE, so you can
> > > have separate functions for BE/LE or whatever and register that with
> > > clocksource_mmio_init(). i.e.

For our LS1 and LS2+ platforms, there will be only one Kernel Image and can work
for both of them with different dtbs.

Thanks,

BRs
Xiubo
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