On Thu, 14 Jun 2007 08:24:17 +0200, Jean Delvare <[email protected]> wrote:
> > + if (pdev->id == -1)
> > + ret = i2c_bit_add_bus(adap);
> > + else
> > + ret = i2c_bit_add_numbered_bus(adap);
> > if (ret)
> > goto err_add_bus;
> >
>
> This isn't sufficient. Before you call i2c_bit_add_numbered_bus(adap),
> you are supposed to set adap->nr to the desired i2c adapter number.
Oh, indeed. That worked for me just I only used bus number 0.
Here is a revised patch.
Subject: [PATCH] i2c-gpio: Add support for new-style clients (take 2)
Use i2c_bit_add_numbered_bus() if platform_device id specified, so
that the i2c-gpio adapter works well with new-style pre-declared
devices.
Signed-off-by: Atsushi Nemoto <[email protected]>
---
diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
index a7dd546..88c5735 100644
--- a/drivers/i2c/busses/i2c-gpio.c
+++ b/drivers/i2c/busses/i2c-gpio.c
@@ -142,7 +142,12 @@ 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 (pdev->id == -1)
+ ret = i2c_bit_add_bus(adap);
+ else {
+ adap->nr = pdev->id;
+ ret = i2c_bit_add_numbered_bus(adap);
+ }
if (ret)
goto err_add_bus;
-
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