i2c: pxa: ensure timeout messages are unique

Ensure that the various timeout messages can identify where in the code
they were produced from to aid debugging.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-pxa.c

@@ -1095,7 +1095,7 @@ static int i2c_pxa_do_xfer(struct pxa_i2c *i2c, struct i2c_msg *msg, int num)
 	ret = i2c->msg_idx;
 
 	if (!timeout && i2c->msg_num) {
-		i2c_pxa_scream_blue_murder(i2c, "timeout");
+		i2c_pxa_scream_blue_murder(i2c, "timeout with active message");
 		ret = I2C_RETRY;
 	}
 
@@ -1169,7 +1169,7 @@ static int i2c_pxa_pio_set_master(struct pxa_i2c *i2c)
 	if (timeout < 0) {
 		show_state(i2c);
 		dev_err(&i2c->adap.dev,
-			"i2c_pxa: timeout waiting for bus free\n");
+			"i2c_pxa: timeout waiting for bus free (set_master)\n");
 		return I2C_RETRY;
 	}
 
@@ -1213,7 +1213,7 @@ static int i2c_pxa_do_pio_xfer(struct pxa_i2c *i2c,
 
 out:
 	if (timeout == 0) {
-		i2c_pxa_scream_blue_murder(i2c, "timeout");
+		i2c_pxa_scream_blue_murder(i2c, "timeout (do_pio_xfer)");
 		ret = I2C_RETRY;
 	}