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authorLinus Torvalds <torvalds@linux-foundation.org>2009-11-09 09:58:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-11-09 09:58:31 -0800
commit799dd75b1a8380a967c929a4551895788c374b31 (patch)
tree7132aafc4ade16fda136d63f1be6ea867edde79b /include
parent6bee58259fce0baad7b02c7a48146d50fa7f6c3c (diff)
parentafa08974fe80c198b8650f73ed8ab59135ca10d0 (diff)
Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c: Add an interface to lock/unlock an I2C bus segment i2c-piix4: Modify code name SB900 to Hudson-2
Diffstat (limited to 'include')
-rw-r--r--include/linux/i2c.h18
-rw-r--r--include/linux/pci_ids.h2
2 files changed, 19 insertions, 1 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 57d41b0abce..7b40cda57a7 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -361,6 +361,24 @@ static inline void i2c_set_adapdata(struct i2c_adapter *dev, void *data)
dev_set_drvdata(&dev->dev, data);
}
+/**
+ * i2c_lock_adapter - Prevent access to an I2C bus segment
+ * @adapter: Target I2C bus segment
+ */
+static inline void i2c_lock_adapter(struct i2c_adapter *adapter)
+{
+ mutex_lock(&adapter->bus_lock);
+}
+
+/**
+ * i2c_unlock_adapter - Reauthorize access to an I2C bus segment
+ * @adapter: Target I2C bus segment
+ */
+static inline void i2c_unlock_adapter(struct i2c_adapter *adapter)
+{
+ mutex_unlock(&adapter->bus_lock);
+}
+
/*flags for the client struct: */
#define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */
#define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index b0f0f3851cd..9ceb392cb98 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -543,7 +543,7 @@
#define PCI_DEVICE_ID_AMD_8131_BRIDGE 0x7450
#define PCI_DEVICE_ID_AMD_8131_APIC 0x7451
#define PCI_DEVICE_ID_AMD_8132_BRIDGE 0x7458
-#define PCI_DEVICE_ID_AMD_SB900_SMBUS 0x780b
+#define PCI_DEVICE_ID_AMD_HUDSON2_SMBUS 0x780b
#define PCI_DEVICE_ID_AMD_CS5535_IDE 0x208F
#define PCI_DEVICE_ID_AMD_CS5536_ISA 0x2090
#define PCI_DEVICE_ID_AMD_CS5536_FLASH 0x2091