From: Feng Tang <feng.tang@intel.com>
To: Len Brown <len.brown@intel.com>,
Bjorn Helgaas <bhelgaas@google.com>,
x86@kernel.org, linux-pci@vger.kernel.org,
linux-acpi@vger.kernel.org
Cc: Feng Tang <feng.tang@intel.com>
Subject: [PATCH] x86/PCI: Add quirk for "CheckPoint P-20-00" to not use bridge _CRS_ info
Date: Fri, 12 Oct 2012 09:15:09 +0800 [thread overview]
Message-ID: <1350004509-17414-1-git-send-email-feng.tang@intel.com> (raw)
This is to fix a regression https://bugzilla.kernel.org/show_bug.cgi?id=47981
The CheckPoint P-20-00 works ok before new machines (2008 and later) are
forced to use the bridge _CRS info by default in 2.6.34. Add this quirk
to restore its old way of working: not using bridge _CRS info.
Signed-off-by: Feng Tang <feng.tang@intel.com>
---
arch/x86/pci/acpi.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 192397c..7010c19 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -98,6 +98,16 @@ static const struct dmi_system_id pci_use_crs_table[] __initconst = {
DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"),
},
},
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=47981 */
+ {
+ .callback = set_nouse_crs,
+ .ident = "CheckPoint P-20-00",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "CheckPoint"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P-20-00"),
+ DMI_MATCH(DMI_BOARD_NAME, "Bridgeport"),
+ },
+ },
{}
};
--
1.7.9.5
reply other threads:[~2012-10-11 9:13 UTC|newest]
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