i2c-ibm_iic: Add support for new-style clients

Use i2c_bit_add_numbered_adapter() if device id specified, so that the
i2c-ibm_iic adapter works well with new-style pre-declared devices.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 8b14d14e60ca..e08bacadd6bc 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -738,7 +738,14 @@ static int __devinit iic_probe(struct ocp_device *ocp){
         adap->timeout = 1;
         adap->retries = 1;
 
-        if ((ret = i2c_add_adapter(adap)) != 0){
+        /*
+         * If "dev->idx" is negative we consider it as zero.
+         * The reason to do so is to avoid sysfs names that only make
+         * sense when there are multiple adapters.
+         */
+        adap->nr = dev->idx >= 0 ? dev->idx : 0;
+
+        if ((ret = i2c_add_numbered_adapter(adap)) < 0) {
                 printk(KERN_CRIT "ibm-iic%d: failed to register i2c adapter\n",
                         dev->idx);
                 goto fail;