Re: [PATCH 3/3] clocksource: dw_apb_timer_of: use clocksource_of_init
From: Heiko Stübner
Date: Tue Jun 04 2013 - 03:57:49 EST
Am Dienstag, 4. Juni 2013, 06:36:20 schrieb Baruch Siach:
> Hi Heiko,
>
> On Mon, Jun 03, 2013 at 09:59:55PM +0200, Heiko Stübner wrote:
> > dw_apb_timer_init used to search the devicetree for matching timer
> > devices, making calls to it from board files necessary.
> >
> > Change the dw_apb_timer_init to work with CLOCKSOURCE_OF_DECLARE.
> > With this change the function gets called once for each timer node
> > and tracks these number of calls to attach clockevent and clocksource
> > devices to the nodes.
> >
> > Also remove the calls to dw_apb_timer_init from all previous users, as
> > clocksource_of_init is the default for init_time now.
> >
> > Tested on the upcoming rk3066 code.
> >
> > Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
> > Acked-by: Rob Herring <rob.herring@xxxxxxxxxxx>
> > Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
> > ---
> >
> > arch/arm/mach-picoxcell/Kconfig | 1 +
> > arch/arm/mach-picoxcell/common.c | 2 -
> > arch/arm/mach-socfpga/Kconfig | 1 +
> > arch/arm/mach-socfpga/socfpga.c | 2 -
> > drivers/clocksource/dw_apb_timer_of.c | 41
> > ++++++++++++++++----------------- include/linux/dw_apb_timer.h
> > | 1 -
> > 6 files changed, 22 insertions(+), 26 deletions(-)
> >
> > diff --git a/arch/arm/mach-picoxcell/Kconfig
> > b/arch/arm/mach-picoxcell/Kconfig index 13bae78..3ef6bbe 100644
> > --- a/arch/arm/mach-picoxcell/Kconfig
> > +++ b/arch/arm/mach-picoxcell/Kconfig
> > @@ -6,6 +6,7 @@ config ARCH_PICOXCELL
> >
> > select CPU_V6K
> > select DW_APB_TIMER
> > select DW_APB_TIMER_OF
> >
> > + select CLKSRC_OF
>
> Shouldn't DW_APB_TIMER 'select CLKSRC_OF if OF' instead of selecting is for
> each and every platform? While at it we can do the same to DW_APB_TIMER_OF.
if anything DW_APB_TIMER_OF should select both DW_APB_TIMER and 'CLKSRC_OF if
OF', as the base DW_APB_TIMER_OF is the platform glue, that uses DW_APB_TIMER
internally.
But otherwise sounds sensible to not duplicate these selects everywhere.
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