RE: [PATCH] PCI: designware: Fix configuration base address

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Hello Minghuan,

> -----Original Message-----
> From: Bjorn Helgaas [mailto:bhelgaas@xxxxxxxxxx]
> Sent: Wednesday, September 24, 2014 4:23 AM
> To: Minghuan Lian
> Cc: linux-pci@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; Zang
> Roy-R61911; Hu Mingkai-B21284; Scott Wood; Yoder Stuart-B08248; Arnd
> Bergmann; Mohit KUMAR DCG; Jingoo Han
> Subject: Re: [PATCH] PCI: designware: Fix configuration base address
> 
> [+cc Mohit, Jingoo]
> 
> On Tue, Sep 23, 2014 at 10:28:56PM +0800, Minghuan Lian wrote:
> > The code has calculated cfg0_base and cfg1_base when parsing 'reg'
> > or 'ranges' property of PCI DTS node. so remove duplicate calculation.
> > And when using 'reg', resource cfg is not used, the removed code will
> > get incorrect configuration base.
> >
> > Signed-off-by: Minghuan Lian <Minghuan.Lian@xxxxxxxxxxxxx>
> > ---
> >  drivers/pci/host/pcie-designware.c | 2 --
> >  1 file changed, 2 deletions(-)
> >
> > diff --git a/drivers/pci/host/pcie-designware.c
> > b/drivers/pci/host/pcie-designware.c
> > index c28ca05..0f3cb2a 100644
> > --- a/drivers/pci/host/pcie-designware.c
> > +++ b/drivers/pci/host/pcie-designware.c
> > @@ -515,7 +515,6 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
> >  	pp->mem_base = pp->mem.start;
> >
> >  	if (!pp->va_cfg0_base) {
> > -		pp->cfg0_base = pp->cfg.start;
> >  		pp->va_cfg0_base = devm_ioremap(pp->dev, pp-
> >cfg0_base,
> >  						pp->cfg0_size);
> >  		if (!pp->va_cfg0_base) {
> > @@ -525,7 +524,6 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
> >  	}
> >
> >  	if (!pp->va_cfg1_base) {
> > -		pp->cfg1_base = pp->cfg.start + pp->cfg0_size;
> >  		pp->va_cfg1_base = devm_ioremap(pp->dev, pp-
> >cfg1_base,
> >  						pp->cfg1_size);
> >  		if (!pp->va_cfg1_base) {
> > --
> > 1.9.1
> >

- Acked-by: Mohit KUMAR <mohit.kumar@xxxxxx>

Thanks
Mohit
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