[PATCH v2 1/3] ARM: davinci: clk framework support for enable/disable functionality
Philip, Avinash
avinashphilip at ti.com
Wed Mar 20 07:28:02 EDT 2013
On Wed, Mar 20, 2013 at 16:49:55, Nori, Sekhar wrote:
> On 3/20/2013 12:11 PM, Philip Avinash wrote:
> > DAVINCI clock framework currently not supporting clock enable/disable
> > functionality on clock nodes. In DAVINCI platform EHRPWM module requires
>
> Wrong. clock enable/disable is supported in the DaVinci clock
> implementation, but just for PSC clocks.
>
> > support for clock enable/disable for TBCLK support. Hence this patch
> > adds support for enabling/disabling clocks depends on the availability
> > of the functionality.
> >
> > Signed-off-by: Philip Avinash <avinashphilip at ti.com>
> > ---
> > Changes since v1:
> > - Add support for clock enable/disable functionality.
> >
> > :100644 100644 d458558... aa89e5e... M arch/arm/mach-davinci/clock.c
> > :100644 100644 8694b39... 1e4e836... M arch/arm/mach-davinci/clock.h
> > arch/arm/mach-davinci/clock.c | 4 ++++
> > arch/arm/mach-davinci/clock.h | 2 ++
> > 2 files changed, 6 insertions(+)
> >
> > diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
> > index d458558..aa89e5e 100644
> > --- a/arch/arm/mach-davinci/clock.c
> > +++ b/arch/arm/mach-davinci/clock.c
> > @@ -35,6 +35,8 @@ static void __clk_enable(struct clk *clk)
> > {
> > if (clk->parent)
> > __clk_enable(clk->parent);
> > + if (clk->clk_enable)
> > + clk->clk_enable(clk);
>
> Why ignore usecount in this case?
Will check usecount & do enable.
>
> > if (clk->usecount++ == 0 && (clk->flags & CLK_PSC))
>
> if clk->enable is available, no need to check for 'clk->flags & CLK_PSC'
I will correct it.
Thanks
Avinash
>
> Thanks,
> Sekhar
>
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