i2c: Rename the PEC functionality bit

Rename I2C_FUNC_SMBUS_HWPEC_CALC as I2C_FUNC_SMBUS_PEC, and list that
functionality as always available through the software implementation.
Update documentation accordingly (and list similar requirements).

The way it's currently packaged doesn't present the capability in a
useful way.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index e43d99d7551f..8033e6b33271 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -491,7 +491,7 @@ struct i2c_msg {
 #define I2C_FUNC_I2C                    0x00000001
 #define I2C_FUNC_10BIT_ADDR             0x00000002
 #define I2C_FUNC_PROTOCOL_MANGLING      0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */
-#define I2C_FUNC_SMBUS_HWPEC_CALC       0x00000008 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_PEC              0x00000008
 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL  0x00008000 /* SMBus 2.0 */
 #define I2C_FUNC_SMBUS_QUICK            0x00010000
 #define I2C_FUNC_SMBUS_READ_BYTE        0x00020000
@@ -527,7 +527,8 @@ struct i2c_msg {
                              I2C_FUNC_SMBUS_WORD_DATA | \
                              I2C_FUNC_SMBUS_PROC_CALL | \
                              I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \
-                             I2C_FUNC_SMBUS_I2C_BLOCK)
+                             I2C_FUNC_SMBUS_I2C_BLOCK | \
+                             I2C_FUNC_SMBUS_PEC)
 
 /*
  * Data for SMBus Messages