X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fi2c%2Fbusses%2Fi2c-amd756-s4882.c;h=72872d1e63efb6c864e49c6bec333081e5e3c3b6;hb=7d283aee50351ec19eaf654a8690d77c4e1dff50;hp=c38a0a112208286787d94966f57048980ad459b8;hpb=c65a3500b2947d344862da8cce626b7cc7ec5758;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
index c38a0a11220..72872d1e63e 100644
--- a/drivers/i2c/busses/i2c-amd756-s4882.c
+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
@@ -58,7 +58,7 @@ static s32 amd756_access_virt0(struct i2c_adapter * adap, u16 addr,
 	/* We exclude the multiplexed addresses */
 	if (addr == 0x4c || (addr & 0xfc) == 0x50 || (addr & 0xfc) == 0x30
 	 || addr == 0x18)
-		return -1;
+		return -ENXIO;
 
 	mutex_lock(&amd756_lock);
 
@@ -86,7 +86,7 @@ static inline s32 amd756_access_channel(struct i2c_adapter * adap, u16 addr,
 
 	/* We exclude the non-multiplexed addresses */
 	if (addr != 0x4c && (addr & 0xfc) != 0x50 && (addr & 0xfc) != 0x30)
-		return -1;
+		return -ENXIO;
 
 	mutex_lock(&amd756_lock);
 
@@ -155,6 +155,16 @@ static int __init amd756_s4882_init(void)
 	int i, error;
 	union i2c_smbus_data ioconfig;
 
+	/* Configure the PCA9556 multiplexer */
+	ioconfig.byte = 0x00; /* All I/O to output mode */
+	error = i2c_smbus_xfer(&amd756_smbus, 0x18, 0, I2C_SMBUS_WRITE, 0x03,
+			       I2C_SMBUS_BYTE_DATA, &ioconfig);
+	if (error) {
+		dev_err(&amd756_smbus.dev, "PCA9556 configuration failed\n");
+		error = -EIO;
+		goto ERROR0;
+	}
+
 	/* Unregister physical bus */
 	error = i2c_del_adapter(&amd756_smbus);
 	if (error) {
@@ -198,22 +208,11 @@ static int __init amd756_s4882_init(void)
 	s4882_algo[3].smbus_xfer = amd756_access_virt3;
 	s4882_algo[4].smbus_xfer = amd756_access_virt4;
 
-	/* Configure the PCA9556 multiplexer */
-	ioconfig.byte = 0x00; /* All I/O to output mode */
-	error = amd756_smbus.algo->smbus_xfer(&amd756_smbus, 0x18, 0,
-					      I2C_SMBUS_WRITE, 0x03,
-					      I2C_SMBUS_BYTE_DATA, &ioconfig);
-	if (error) {
-		dev_err(&amd756_smbus.dev, "PCA9556 configuration failed\n");
-		error = -EIO;
-		goto ERROR3;
-	}
-
 	/* Register virtual adapters */
 	for (i = 0; i < 5; i++) {
 		error = i2c_add_adapter(s4882_adapter+i);
 		if (error) {
-			dev_err(&amd756_smbus.dev,
+			printk(KERN_ERR "i2c-amd756-s4882: "
 			       "Virtual adapter %d registration "
 			       "failed, module not inserted\n", i);
 			for (i--; i >= 0; i--)
@@ -252,8 +251,8 @@ static void __exit amd756_s4882_exit(void)
 
 	/* Restore physical bus */
 	if (i2c_add_adapter(&amd756_smbus))
-		dev_err(&amd756_smbus.dev, "Physical bus restoration "
-			"failed\n");
+		printk(KERN_ERR "i2c-amd756-s4882: "
+		       "Physical bus restoration failed\n");
 }
 
 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");