Re: [PATCH v3 1/3] clocksource: davinci: only enable clockevents once tim34 is initialized

From: Sekhar Nori
Date: Mon Jan 13 2020 - 06:57:56 EST


Hi Daniel, Bart,

On 11/01/20 3:59 PM, Daniel Lezcano wrote:
>
>
> On Sat, 11 Jan 2020 at 11:20, Bartosz Golaszewski <brgl@xxxxxxxx
> <mailto:brgl@xxxxxxxx>> wrote:
>
> pt., 10 sty 2020 o 18:56 Daniel Lezcano <daniel.lezcano@xxxxxxxxxx
> <mailto:daniel.lezcano@xxxxxxxxxx>> napisaÅ(a):
> >
> > On 10/01/2020 18:16, Bartosz Golaszewski wrote:
> > > From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx
> <mailto:bgolaszewski@xxxxxxxxxxxx>>
> > >
> > > The DM365 platform has a strange quirk (only present when using
> ancient
> > > u-boot - mainline u-boot v2013.01 and later works fine) where if we
> > > enable the second half of the timer in periodic mode before we
> do its
> > > initialization - the time won't start flowing and we can't boot.
> > >
> > > When using more recent u-boot, we can enable the timer, then
> reinitialize
> > > it and all works fine.
> > >
> > > To work around this issue only enable clockevents once tim34 is
> > > initialized i.e. move clockevents_config_and_register() below tim34
> > > initialization.
> > >
> > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx
> <mailto:bgolaszewski@xxxxxxxxxxxx>>
> >
> > Shall I take it through my tree?
> >
>
> Not sure, I'd say Sekhar should take it through arm-soc together with
> the latter two patches if he's ok with this. Let's wait for him to
> respond.
>
>
> Just in case:
> Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx
> <mailto:daniel.lezcano@xxxxxxxxxx>>

I was able to test the series on all 6 DaVinci SoCs. I will send this
upstream with Daniel's ack.

Thanks,
Sekhar