Commit 8ed30872 authored Feb 13, 2012 by Jacob Pan Committed by Jesse Barnes Feb 23, 2012

x86/mrst/pci: v4l/atomisp: treat atomisp as real pci device

ATOMISP on Medfield is a real PCI device which should be handled differently
than the fake PCI devices on south complex. PCI type 1 access is used for
accessing config space this also has other impact such as PM D3 delay. There
shouldn't be any need for reading base address from IUNIT via msg bus.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

parent 990a30c5

arch/x86/pci/mrst.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -148,7 +148,9 @@ static bool type1_access_ok(unsigned int bus, unsigned int devfn, int reg)
		*/
		if (reg >= 0x100 \|\| reg == PCI_STATUS \|\| reg == PCI_HEADER_TYPE)
		return 0;
		if (bus == 0 && (devfn == PCI_DEVFN(2, 0) \|\| devfn == PCI_DEVFN(0, 0)))
		if (bus == 0 && (devfn == PCI_DEVFN(2, 0)
		\|\| devfn == PCI_DEVFN(0, 0)
		\|\| devfn == PCI_DEVFN(3, 0)))
		return 1;
		return 0; /* langwell on others */
		}