diff options
Diffstat (limited to 'RFC-v2-PCI-Workaround-to-enable-poweroff-on-Mac-Pro-11.patch')
-rw-r--r-- | RFC-v2-PCI-Workaround-to-enable-poweroff-on-Mac-Pro-11.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/RFC-v2-PCI-Workaround-to-enable-poweroff-on-Mac-Pro-11.patch b/RFC-v2-PCI-Workaround-to-enable-poweroff-on-Mac-Pro-11.patch new file mode 100644 index 000000000000..c43bc4bc131f --- /dev/null +++ b/RFC-v2-PCI-Workaround-to-enable-poweroff-on-Mac-Pro-11.patch @@ -0,0 +1,32 @@ +diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c +index 37ff015..47b303a 100644 +--- a/drivers/pci/quirks.c ++++ b/drivers/pci/quirks.c +@@ -2776,6 +2776,27 @@ static void quirk_hotplug_bridge(struct pci_dev *dev) + DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge); + + /* ++ * Apple: Avoid programming the memory/io aperture of 00:1c.0 ++ * ++ * BIOS does not declare any resource for 00:1c.0, but with ++ * hotplug flag set, thus OS allocate: ++ * [mem 0x7fa00000 - 0x7fbfffff] ++ * [mem 0x7fc00000-0x7fdfffff 64bit pref] ++ * which is conflict with an unreported device, which ++ * causes unpredictable result such as accessing io port. ++ * So clear the hotplug flag to work around it. ++ */ ++static void quirk_apple_mbp_poweroff(struct pci_dev *dev) ++{ ++ if (dmi_match(DMI_BOARD_VENDOR, "Apple Inc.") && ++ dmi_match(DMI_PRODUCT_NAME, "MacBookPro11,4") || ++ dmi_match(DMI_PRODUCT_NAME, "MacBookPro11,5")) ++ dev->is_hotplug_bridge = 0; ++} ++ ++DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x8c10, quirk_apple_mbp_poweroff); ++ ++/* + * This is a quirk for the Ricoh MMC controller found as a part of + * some mulifunction chips. + |