i2c-omap: Add support for I2C_M_STOP message flag

Generate a stop condition after each message marked with I2C_M_STOP.

[JD: Add I2C_FUNC_PROTOCOL_MANGLING.]

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 801df6000e9b..c2148332de0f 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -545,6 +545,8 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap,
         if (dev->speed > 400)
                 w |= OMAP_I2C_CON_OPMODE_HS;
 
+        if (msg->flags & I2C_M_STOP)
+                stop = 1;
         if (msg->flags & I2C_M_TEN)
                 w |= OMAP_I2C_CON_XA;
         if (!(msg->flags & I2C_M_RD))
@@ -658,7 +660,8 @@ out:
 static u32
 omap_i2c_func(struct i2c_adapter *adap)
 {
-        return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK);
+        return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK) |
+               I2C_FUNC_PROTOCOL_MANGLING;
 }
 
 static inline void