From 8ed3087280ee8c527b7090887e333761a9c75474 Mon Sep 17 00:00:00 2001 From: Jacob Pan Date: Mon, 13 Feb 2012 12:59:20 +0000 Subject: [PATCH] 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 Signed-off-by: Artem Bityutskiy Signed-off-by: Jesse Barnes --- arch/x86/pci/mrst.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c index 89e55485c787..c5e81a4d7c1e 100644 --- a/arch/x86/pci/mrst.c +++ b/arch/x86/pci/mrst.c @@ -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 */ } -- 2.20.1