Hi,
On Sun, Aug 30, 2015 at 2:34 PM, Vladimir Zapolskiy
<vladimir_zapolskiy@xxxxxxxxxx> wrote:
> +static struct i2c_adapter *dw_hdmi_i2c_adapter(struct dw_hdmi *hdmi)
> +{
> + struct i2c_adapter *adap;
> + struct dw_hdmi_i2c *i2c;
> + int ret;
> +
> + i2c = devm_kzalloc(hdmi->dev, sizeof(*i2c), GFP_KERNEL);
> + if (!i2c)
> + return ERR_PTR(-ENOMEM);
> +
> + mutex_init(&i2c->lock);
> + init_completion(&i2c->cmp);
> +
> + adap = &i2c->adap;
> + adap->class = I2C_CLASS_DDC;
> + adap->owner = THIS_MODULE;
> + adap->dev.parent = hdmi->dev;
I think you may want to add "adap->dev.of_node = hdmi->dev->of_node;"
here. That will allow device trees to specify the i2c bus by using an
alias.
See <https://chromium-review.googlesource.com/#/c/297040/> where I've
added this line and
<https://chromium-review.googlesource.com/#/c/297041/> where I've used
it.
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