i2c-gpio: Add support for new-style clients

Use i2c_bit_add_numbered_bus() so that the i2c-gpio adapter works well
with new-style pre-declared devices.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
index a7dd546..d6dbd6a 100644 (file)
--- a/drivers/i2c/busses/i2c-gpio.c
+++ b/drivers/i2c/busses/i2c-gpio.c
@@ -142,7 +142,13 @@ static int __init i2c_gpio_probe(struct platform_device *pdev)
        adap->algo_data = bit_data;
        adap->dev.parent = &pdev->dev;
 
-       ret = i2c_bit_add_bus(adap);
+       /*
+        * If "dev->id" 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 = pdev->id >= 0 ? pdev->id : 0;
+       ret = i2c_bit_add_numbered_bus(adap);
        if (ret)
                goto err_add_bus;