[PATCH 5/6] arm64, defconfig: Enable PCI
catalin.marinas at arm.com
Wed Sep 24 10:10:48 PDT 2014
On Wed, Sep 24, 2014 at 05:26:31PM +0100, Robert Richter wrote:
> On 24.09.14 18:14:11, Arnd Bergmann wrote:
> > On Wednesday 24 September 2014 17:37:47 Robert Richter wrote:
> > > config PCI
> > > bool "PCI support"
> > > + default y
> > > help
> > > This feature enables support for PCIe bus system. If you say Y
> > > here, the kernel will include drivers and infrastructure code
> > > to support PCIe bus devices.
> > >
> > > +config PCI_MSI
> > > + def_bool PCI
> > > +
> > > config PCI_DOMAINS
> > > def_bool PCI
> > There is already a PCI_MSI symbol in drivers/pci/Kconfig. Just select that
> > from the PCI symbol above rather than defining a second one.
> The intention is not to have a second definition, instead this should
> enable the default value just for arm64. Thus I put it to
> arch/arm64/Kconfig. Otherwise it would be enabled per default on all
> We could have used select in config ARM64, but I tried to avoid using
> select due to the dependency issue and instead implement this with
> default-y/depends-on. Doing so it can be manually disabled too.
It may be better to simply set PCI and PCI_MSI as defaults in defconfig
rather than "default y" and an additional config PCI_MSI entry.
More information about the linux-arm-kernel