[PATCH 06/11] ARM: OMAP3: CM/PM: add API for forcing IVA2 clk enable/disable

Paul Walmsley paul at pwsan.com
Sat Oct 19 13:42:25 EDT 2013


On Sat, 19 Oct 2013, Paul Walmsley wrote:

> On Fri, 11 Oct 2013, Tero Kristo wrote:
> 
> > OMAP3 PM code directly writes to CM register space to enable/disable IVA2
> > clock during boot during the IVA2 reset. Direct access shall be avoided,
> > thus implement an API call for this, and change the PM core to use this.
> > 
> > Signed-off-by: Tero Kristo <t-kristo at ti.com>
> > ---
> >  arch/arm/mach-omap2/cm3xxx.c |   10 ++++++++++
> >  arch/arm/mach-omap2/cm3xxx.h |    1 +
> >  arch/arm/mach-omap2/pm34xx.c |    7 +++----
> >  3 files changed, 14 insertions(+), 4 deletions(-)
> > 
> > diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c
> > index f13742b..55bf939 100644
> > --- a/arch/arm/mach-omap2/cm3xxx.c
> > +++ b/arch/arm/mach-omap2/cm3xxx.c
> > @@ -686,6 +686,16 @@ u32 omap3_cm_write_module_clken(s16 module, u8 regs, bool fck, u32 val)
> >  	return omap3_cm_access_module_clken(module, regs, fck, val, true);
> >  }
> >  
> > +void omap3_cm_force_iva_clk(bool enable)
> > +{
> > +	u32 val = 0;
> > +
> > +	if (enable)
> > +		val = OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_MASK;
> > +
> > +	omap2_cm_write_mod_reg(val, OMAP3430_IVA2_MOD, CM_FCLKEN);
> > +}
> > +
> 
> Please implement this as a generic clockdomain API that can be called for 
> any clockdomain.

Oops, please ignore this comment for this patch; it was intended to be in 
regards to the CLKSTST-reading patch, & have responded appropriately to 
that patch.


- Paul



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