diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2016-06-21 09:19:34 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-06-25 07:44:23 -0500 |
| commit | b2a5d3e2cf65e46522b695b76f93ec1b0f6cad30 (patch) | |
| tree | 953f10f1497d994255ac65148e8caf3750f11a8b /drivers/pci/host/pci-rcar-gen2.c | |
| parent | 1fa051018d85b829e4b9a7ed20147df8760293ee (diff) | |
PCI: rcar: Drop gen2 dummy I/O port region
Previously we added a dummy I/O port region even though the R-Car
controller doesn't support PCI port I/O. This resulted in bogus root bus
resources like this:
pci_bus 0000:00: root bus resource [io 0xee080000-0xee0810ff]
pci_bus 0000:00: root bus resource [mem 0xee080000-0xee0810ff]
Drop the unused dummy I/O port region and set struct hw_pci.io_optional so
the ARM PCI code doesn't add a default one for us.
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/host/pci-rcar-gen2.c')
| -rw-r--r-- | drivers/pci/host/pci-rcar-gen2.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/pci/host/pci-rcar-gen2.c b/drivers/pci/host/pci-rcar-gen2.c index 9980a4bdae7e..ddf776556c78 100644 --- a/drivers/pci/host/pci-rcar-gen2.c +++ b/drivers/pci/host/pci-rcar-gen2.c @@ -97,7 +97,6 @@ struct rcar_pci_priv { struct device *dev; void __iomem *reg; - struct resource io_res; struct resource mem_res; struct resource *cfg_res; unsigned busnr; @@ -273,7 +272,6 @@ static int rcar_pci_setup(int nr, struct pci_sys_data *sys) rcar_pci_setup_errirq(priv); /* Add PCI resources */ - pci_add_resource(&sys->resources, &priv->io_res); pci_add_resource(&sys->resources, &priv->mem_res); /* Setup bus number based on platform device id / of bus-range */ @@ -371,14 +369,6 @@ static int rcar_pci_probe(struct platform_device *pdev) return -ENOMEM; priv->mem_res = *mem_res; - /* - * The controller does not support/use port I/O, - * so setup a dummy port I/O region here. - */ - priv->io_res.start = priv->mem_res.start; - priv->io_res.end = priv->mem_res.end; - priv->io_res.flags = IORESOURCE_IO; - priv->cfg_res = cfg_res; priv->irq = platform_get_irq(pdev, 0); @@ -421,6 +411,7 @@ static int rcar_pci_probe(struct platform_device *pdev) hw_private[0] = priv; memset(&hw, 0, sizeof(hw)); hw.nr_controllers = ARRAY_SIZE(hw_private); + hw.io_optional = 1; hw.private_data = hw_private; hw.map_irq = rcar_pci_map_irq; hw.ops = &rcar_pci_ops; |