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SubjectRE: [PATCH 1/3] hwrng: cctrng - Add dependency on OF
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> -----Original Message-----
> From: Ard Biesheuvel <ardb@kernel.org>
>
> On Mon, 27 Apr 2020 at 07:42, Hadar Gat <hadar.gat@arm.com> wrote:
> >
> > The cctrng is unusable on non-DT systems so we should depend on it.
> >
> > Signed-off-by: Hadar Gat <hadar.gat@arm.com>
> > ---
> > drivers/char/hw_random/Kconfig | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/char/hw_random/Kconfig
> > b/drivers/char/hw_random/Kconfig index 0c99735..df2d001 100644
> > --- a/drivers/char/hw_random/Kconfig
> > +++ b/drivers/char/hw_random/Kconfig
> > @@ -476,7 +476,7 @@ config HW_RANDOM_KEYSTONE
> >
> > config HW_RANDOM_CCTRNG
> > tristate "Arm CryptoCell True Random Number Generator support"
> > - depends on HAS_IOMEM
> > + depends on HAS_IOMEM & OF
>
> Does your driver in fact depend on CONFIG_HAS_IOMEM ?

Yes, it uses devm_ioremap_resource() for registers mapping.

>
> > default HW_RANDOM
> > help
> > This driver provides support for the True Random Number
> > --
> > 2.7.4
> >
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