Re: [PATCH V3 3/3] pci: imx: Select RESET_IMX7 by default

From: Philipp Zabel
Date: Wed Jul 29 2020 - 11:48:28 EST


On Wed, 2020-07-29 at 09:26 -0600, Rob Herring wrote:
> On Mon, Jul 20, 2020 at 8:26 AM Anson Huang <Anson.Huang@xxxxxxx> wrote:
> > i.MX7 reset driver now supports module build and it is no longer
> > built in by default, so i.MX PCI driver needs to select it explicitly
> > due to it is NOT supporting loadable module currently.
> >
> > Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
> > ---
> > No change.
> > ---
> > drivers/pci/controller/dwc/Kconfig | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
> > index 044a376..bcf63ce 100644
> > --- a/drivers/pci/controller/dwc/Kconfig
> > +++ b/drivers/pci/controller/dwc/Kconfig
> > @@ -90,6 +90,7 @@ config PCI_EXYNOS
> >
> > config PCI_IMX6
> > bool "Freescale i.MX6/7/8 PCIe controller"
> > + select RESET_IMX7
>
> This will break as select will not cause all of RESET_IMX7's
> dependencies to be met. It also doesn't scale. Are you going to do the
> same thing for clocks, pinctrl, gpio, etc.?
>
> You should make the PCI driver work as a module.

Oh, also PCI_IMX6 is used on (surprise) i.MX6, which doesn't need
RESET_IMX7 at all.

How about hiding the RESET_IMX7 option and setting it default y if
PCI_IMX6 is enabled, as an interim solution?

regards
Philipp