On Tuesday 12 March 2013, Danny Huang wrote:
>
> +void __init tegra_soc_device_init(void)
> +{
> + struct soc_device *soc_dev;
> + struct soc_device_attribute *soc_dev_attr;
> +
> + soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
> + if (!soc_dev_attr)
> + return;
> +
> + soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%d", tegra_chip_id);
> + soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d", tegra_revision);
> + soc_dev_attr->family = kasprintf(GFP_KERNEL, "Tegra");
> +
> + soc_dev = soc_device_register(soc_dev_attr);
> + if (IS_ERR_OR_NULL(soc_dev))
> + kfree(soc_dev_attr);
> +
> + return;
You are dropping the soc_dev on the floor here by just returning.
The idea of the soc node is to have all on-soc components be children
of that node, so you should instead pass it into of_platform_populate
as the parent device.
Arnd
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