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authorDarrick J. Wong <djwong@us.ibm.com>2010-03-24 14:38:37 +0100
committerJean Delvare <khali@linux-fr.org>2010-03-24 14:38:37 +0100
commit222e82ac9ffbd3b80ab1b0b1d2c8c60ddb47d69d (patch)
tree92b2f540b812a4ef69a6a6202ab784fd0238d23d /include/acpi
parentae6be51ed01d6c4aaf249a207b4434bc7785853b (diff)
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acpi: Support IBM SMBus CMI devices
On some old IBM workstations and desktop computers, the BIOS presents in the DSDT an SMBus object that is missing the HID identifier that the i2c-scmi driver looks for. Modify the ACPI device scan code to insert the missing HID if it finds an IBM system with such an object. Affected machines: IntelliStation Z20/Z30. Note that the i2c-i801 driver no longer works on these machines because of ACPI resource conflicts. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/acpi_drivers.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index 3a4767c01c5..4f7b44866b7 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -65,6 +65,8 @@
#define ACPI_VIDEO_HID "LNXVIDEO"
#define ACPI_BAY_HID "LNXIOBAY"
#define ACPI_DOCK_HID "LNXDOCK"
+/* Quirk for broken IBM BIOSes */
+#define ACPI_SMBUS_IBM_HID "SMBUSIBM"
/*
* For fixed hardware buttons, we fabricate acpi_devices with HID