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Diffstat (limited to 'drivers/i2c/busses/i2c-amd756-s4882.c')
-rw-r--r--drivers/i2c/busses/i2c-amd756-s4882.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
index 2f150e33c74c..72872d1e63ef 100644
--- a/drivers/i2c/busses/i2c-amd756-s4882.c
+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
@@ -155,6 +155,16 @@ static int __init amd756_s4882_init(void)
155 int i, error; 155 int i, error;
156 union i2c_smbus_data ioconfig; 156 union i2c_smbus_data ioconfig;
157 157
158 /* Configure the PCA9556 multiplexer */
159 ioconfig.byte = 0x00; /* All I/O to output mode */
160 error = i2c_smbus_xfer(&amd756_smbus, 0x18, 0, I2C_SMBUS_WRITE, 0x03,
161 I2C_SMBUS_BYTE_DATA, &ioconfig);
162 if (error) {
163 dev_err(&amd756_smbus.dev, "PCA9556 configuration failed\n");
164 error = -EIO;
165 goto ERROR0;
166 }
167
158 /* Unregister physical bus */ 168 /* Unregister physical bus */
159 error = i2c_del_adapter(&amd756_smbus); 169 error = i2c_del_adapter(&amd756_smbus);
160 if (error) { 170 if (error) {
@@ -198,22 +208,11 @@ static int __init amd756_s4882_init(void)
198 s4882_algo[3].smbus_xfer = amd756_access_virt3; 208 s4882_algo[3].smbus_xfer = amd756_access_virt3;
199 s4882_algo[4].smbus_xfer = amd756_access_virt4; 209 s4882_algo[4].smbus_xfer = amd756_access_virt4;
200 210
201 /* Configure the PCA9556 multiplexer */
202 ioconfig.byte = 0x00; /* All I/O to output mode */
203 error = amd756_smbus.algo->smbus_xfer(&amd756_smbus, 0x18, 0,
204 I2C_SMBUS_WRITE, 0x03,
205 I2C_SMBUS_BYTE_DATA, &ioconfig);
206 if (error) {
207 dev_err(&amd756_smbus.dev, "PCA9556 configuration failed\n");
208 error = -EIO;
209 goto ERROR3;
210 }
211
212 /* Register virtual adapters */ 211 /* Register virtual adapters */
213 for (i = 0; i < 5; i++) { 212 for (i = 0; i < 5; i++) {
214 error = i2c_add_adapter(s4882_adapter+i); 213 error = i2c_add_adapter(s4882_adapter+i);
215 if (error) { 214 if (error) {
216 dev_err(&amd756_smbus.dev, 215 printk(KERN_ERR "i2c-amd756-s4882: "
217 "Virtual adapter %d registration " 216 "Virtual adapter %d registration "
218 "failed, module not inserted\n", i); 217 "failed, module not inserted\n", i);
219 for (i--; i >= 0; i--) 218 for (i--; i >= 0; i--)
@@ -252,8 +251,8 @@ static void __exit amd756_s4882_exit(void)
252 251
253 /* Restore physical bus */ 252 /* Restore physical bus */
254 if (i2c_add_adapter(&amd756_smbus)) 253 if (i2c_add_adapter(&amd756_smbus))
255 dev_err(&amd756_smbus.dev, "Physical bus restoration " 254 printk(KERN_ERR "i2c-amd756-s4882: "
256 "failed\n"); 255 "Physical bus restoration failed\n");
257} 256}
258 257
259MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); 258MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");