Re: [PATCH v1 03/10] clk: at91: pmc: Support backup for programmable clocks

[Alexandre Belloni]

On 13/09/2017 at 14:29:35 +0200, Nicolas Ferre wrote:
> On 08/09/2017 at 17:35, Romain Izard wrote:
> > From: Romain Izard <romain.izard@xxxxxxxxxxxxxxxxx>
> > 
> > Save and restore the System Clock and Programmable Clock register for
> > the backup use case.
> 
> "System Clock" seems to be handled in another patch.
> 
> > Signed-off-by: Romain Izard <romain.izard.pro@xxxxxxxxx>
> > ---
> >  drivers/clk/at91/pmc.c | 5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
> > index 07dc2861ad3f..5421b03553ec 100644
> > --- a/drivers/clk/at91/pmc.c
> > +++ b/drivers/clk/at91/pmc.c
> > @@ -66,6 +66,7 @@ static struct
> >  	u32 pcr[PMC_MAX_IDS];
> >  	u32 audio_pll0;
> >  	u32 audio_pll1;
> > +	u32 pckr[3];
> 
> Some products have different numbers of PCK (only 2 on at91sam9x5 for
> instance)...
> 

My opinion is that it will be time to change that when multiple SoCs
will need to save their registers.


-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com