[PATCH RFT 1/2] drivers: bus: check cci device tree node status

[Nicolas Pitre]

On Wed, 10 Dec 2014, Abhilash Kesavan wrote:

> Hi,
> 
> On Fri, Nov 28, 2014 at 8:20 PM, Abhilash Kesavan <a.kesavan at samsung.com> wrote:
> > The arm-cci driver completes the probe sequence even if the cci node is
> > marked as disabled. Add a check in the driver to honour the cci status
> > in the device tree.
> >
> > Signed-off-by: Abhilash Kesavan <a.kesavan at samsung.com>
> 
> This patch helps disable CCI on the Arndale Octa board thus resolving
> some imprecise aborts seen on that board. Kindly review.

Acked-by: Nicolas Pitre <nico at linaro.org>


> 
> Regards,
> Abhilash
> > ---
> >  drivers/bus/arm-cci.c |    3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
> > index 860da40..0ce5e2d 100644
> > --- a/drivers/bus/arm-cci.c
> > +++ b/drivers/bus/arm-cci.c
> > @@ -1312,6 +1312,9 @@ static int cci_probe(void)
> >         if (!np)
> >                 return -ENODEV;
> >
> > +       if (!of_device_is_available(np))
> > +               return -ENODEV;
> > +
> >         cci_config = of_match_node(arm_cci_matches, np)->data;
> >         if (!cci_config)
> >                 return -ENODEV;
> > --
> > 1.7.9.5
> >
> 
>