target/linux/ramips/patches-5.10/0119-staging-mt7621-pci-avoid-to-set-iomem_resource-addre.patch

   1 From 4f0f36b67564311a4ce4441510ef94848febbab2 Mon Sep 17 00:00:00 2001
   2 From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
   3 Date: Sun, 22 Mar 2020 08:21:28 +0100
   4 Subject: [PATCH] staging: mt7621-pci: avoid to set 'iomem_resource' addresses
   5
   6 Setting up kernel resource 'iomem_resource' for PCI with
   7 addresses parsed from device tree gots into a conflict within
   8 the usb xhci driver:
   9
  10 xhci-mtk 1e1c0000.xhci: can't request region for resource [mem 0x1e1c0000-0x1e1c0fff]
  11 xhci-mtk: probe of 1e1c0000.xhci failed with error -16
  12
  13 Don't assign it and maintain the default addresses for this
  14 resource seems to fix the problem. Checking legacy driver it
  15 is being only  setting the 'ioport_resource'.
  16
  17 Fixes: 09dd629eeabb ("staging: mt7621-pci: fix io space and properly set resource limits")
  18 Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
  19 Link: https://lore.kernel.org/r/20200322072128.4454-1-sergio.paracuellos@gmail.com
  20 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  21 ---
  22  drivers/staging/mt7621-pci/pci-mt7621.c | 2 --
  23  1 file changed, 2 deletions(-)
  24
  25 --- a/drivers/staging/mt7621-pci/pci-mt7621.c
  26 +++ b/drivers/staging/mt7621-pci/pci-mt7621.c
  27 @@ -679,8 +679,6 @@ static int mt7621_pci_probe(struct platf
  28         }
  29
  30         /* set resources limits */
  31 -       iomem_resource.start = pcie->mem.start;
  32 -       iomem_resource.end = pcie->mem.end;
  33         ioport_resource.start = pcie->io.start;
  34         ioport_resource.end = pcie->io.end;
  35