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staging: mt7621-pci: avoid to set 'iomem_resource' addresses

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Setting up kernel resource 'iomem_resource' for PCI with
addresses parsed from device tree gots into a conflict within
the usb xhci driver:

xhci-mtk 1e1c0000.xhci: can't request region for resource [mem 0x1e1c0000-0x1e1c0fff]
xhci-mtk: probe of 1e1c0000.xhci failed with error -16

Don't assign it and maintain the default addresses for this
resource seems to fix the problem. Checking legacy driver it
is being only  setting the 'ioport_resource'.

Fixes: 09dd629eea ("staging: mt7621-pci: fix io space and properly set resource limits")
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20200322072128.4454-1-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergio Paracuellos 2020-03-22 08:21:28 +01:00 committed by Greg Kroah-Hartman
parent 30c826bf1d
commit 4bc0659d71
1 changed files with 0 additions and 2 deletions
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2
drivers/staging/mt7621-pci/pci-mt7621.c
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@ -679,8 +679,6 @@ static int mt7621_pci_probe(struct platform_device *pdev)
}
/* set resources limits */
iomem_resource.start = pcie->mem.start;
iomem_resource.end = pcie->mem.end;
ioport_resource.start = pcie->io.start;
ioport_resource.end = pcie->io.end;