On Fri, Sep 11, 2020 at 05:50:02PM +0900, Kunihiko Hayashi wrote: > This gets iATU register area from reg property that has reg-names "atu". > In Synopsys DWC version 4.80 or later, since iATU register area is > separated from core register area, this area is necessary to get from > DT independently. > > Cc: Murali Karicheri <[email protected]> > Cc: Jingoo Han <[email protected]> > Cc: Gustavo Pimentel <[email protected]> > Suggested-by: Rob Herring <[email protected]> > Signed-off-by: Kunihiko Hayashi <[email protected]> > --- > drivers/pci/controller/dwc/pcie-designware.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/pci/controller/dwc/pcie-designware.c > b/drivers/pci/controller/dwc/pcie-designware.c > index 4d105ef..4a360bc 100644 > --- a/drivers/pci/controller/dwc/pcie-designware.c > +++ b/drivers/pci/controller/dwc/pcie-designware.c > @@ -10,6 +10,7 @@ > > #include <linux/delay.h> > #include <linux/of.h> > +#include <linux/of_platform.h> > #include <linux/types.h> > > #include "../../pci.h" > @@ -526,11 +527,16 @@ void dw_pcie_setup(struct dw_pcie *pci) > u32 val; > struct device *dev = pci->dev; > struct device_node *np = dev->of_node; > + struct platform_device *pdev; > > if (pci->version >= 0x480A || (!pci->version && > dw_pcie_iatu_unroll_enabled(pci))) { > pci->iatu_unroll_enabled = true; > - if (!pci->atu_base) > + pdev = of_find_device_by_node(np);
Use to_platform_device(dev) instead. Put that at the beginning as I'm going to move 'dbi' in here too. > + if (!pci->atu_base && pdev) > + pci->atu_base = > + devm_platform_ioremap_resource_byname(pdev, "atu"); > + if (IS_ERR_OR_NULL(pci->atu_base)) > pci->atu_base = pci->dbi_base + DEFAULT_DBI_ATU_OFFSET; > } > dev_dbg(pci->dev, "iATU unroll: %s\n", pci->iatu_unroll_enabled ? > -- > 2.7.4 > > > _______________________________________________ > linux-arm-kernel mailing list > [email protected] > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
