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Diffstat (limited to 'include/linux/i2c.h')
-rw-r--r--include/linux/i2c.h19
1 files changed, 15 insertions, 4 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index e83a738a3..768063baa 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -121,6 +121,9 @@ extern s32 i2c_smbus_read_i2c_block_data(const struct i2c_client *client,
extern s32 i2c_smbus_write_i2c_block_data(const struct i2c_client *client,
u8 command, u8 length,
const u8 *values);
+extern s32
+i2c_smbus_read_i2c_block_data_or_emulated(const struct i2c_client *client,
+ u8 command, u8 length, u8 *values);
#endif /* I2C */
/**
@@ -550,11 +553,12 @@ void i2c_lock_adapter(struct i2c_adapter *);
void i2c_unlock_adapter(struct i2c_adapter *);
/*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 */
+#define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */
+#define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */
/* Must equal I2C_M_TEN below */
-#define I2C_CLIENT_WAKE 0x80 /* for board_info; true iff can wake */
-#define I2C_CLIENT_SCCB 0x9000 /* Use Omnivision SCCB protocol */
+#define I2C_CLIENT_SLAVE 0x20 /* we are the slave */
+#define I2C_CLIENT_WAKE 0x80 /* for board_info; true iff can wake */
+#define I2C_CLIENT_SCCB 0x9000 /* Use Omnivision SCCB protocol */
/* Must match I2C_M_STOP|IGNORE_NAK */
/* i2c adapter classes (bitmask) */
@@ -638,6 +642,8 @@ extern struct i2c_client *of_find_i2c_device_by_node(struct device_node *node);
/* must call put_device() when done with returned i2c_adapter device */
extern struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node);
+/* must call i2c_put_adapter() when done with returned i2c_adapter device */
+struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node);
#else
static inline struct i2c_client *of_find_i2c_device_by_node(struct device_node *node)
@@ -649,6 +655,11 @@ static inline struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node
{
return NULL;
}
+
+static inline struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node)
+{
+ return NULL;
+}
#endif /* CONFIG_OF */
#endif /* _LINUX_I2C_H */