Re: [PATCH v2 10/10] PCIe: qcom: add Force GEN1 support

Rob Herring
2020-04-14T17:09:27Z

On Fri, Apr 03, 2020 at 12:01:01PM +0300, Stanimir Varbanov wrote:
> Hi Ansuel,
>
> On 4/2/20 3:11 PM, Ansuel Smith wrote:
> > From: Sham Muthayyan <smuthayy@codeaurora.org>
> >
> > Add Force GEN1 support needed in some ipq806x board
> > that needs to limit some pcie line to gen1 for some
> > hardware limitation.
> > This is set by the max-link-speed dts entry and needed
> > by some soc based on ipq806x. (for example Netgear R7800
> > router)
> >
> > Signed-off-by: Sham Muthayyan <smuthayy@codeaurora.org>
> > Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
> > ---
> > drivers/pci/controller/dwc/pcie-qcom.c | 13 +++++++++++++
> > 1 file changed, 13 insertions(+)
> >
> > diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> > index 8047ac7dc8c7..2212e9498b91 100644
> > --- a/drivers/pci/controller/dwc/pcie-qcom.c
> > +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> > @@ -27,6 +27,7 @@
> > #include <linux/slab.h>
> > #include <linux/types.h>
> >
> > +#include "../../pci.h"
>
> This looks suspiciously (even ugly), but I saw that the other users of
> of_pci_get_max_link_speed is doing the same.
>
> Bjorn H. : do you know why the prototype is there? Perhaps it must be in
> linux/of_pci.h.

No, because the function should not be used outside of drivers/pci/.

Rob