Re: [PATCH v2 18/29] nios2: Device tree support

Ley Foon Tan
2014-07-15T10:02:03Z

On Tue, Jul 15, 2014 at 5:41 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Tuesday 15 July 2014 16:45:45 Ley Foon Tan wrote:
>> +static struct of_device_id altera_of_bus_ids[] __initdata = {
>> + { .compatible = "simple-bus", },
>> + { .compatible = "altr,avalon", },
>> + {}
>> +};
>
> Can you change the avalon bus nodes to be compatible to with "simple-bus"
> as well, so you can use the default id list?
Yes, it is compatible with both "altr,avalon" and "simple-bus". We can
change it to default id list.

compatible = "altr,avalon", "simple-bus";

>
>> +static int __init nios2_soc_device_init(void)
>> +{
>> + struct soc_device *soc_dev;
>> + struct soc_device_attribute *soc_dev_attr;
>> + const char *machine;
>> +
>> + soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
>> + if (soc_dev_attr) {
>> + machine = of_flat_dt_get_machine_name();
>> + if (machine)
>> + soc_dev_attr->machine = kasprintf(GFP_KERNEL, "%s",
>> + machine);
>> +
>> + soc_dev_attr->family = "Nios II";
>> +
>> + soc_dev = soc_device_register(soc_dev_attr);
>> + if (IS_ERR(soc_dev)) {
>> + kfree(soc_dev_attr->machine);
>> + kfree(soc_dev_attr);
>> + }
>> + }
>> +
>> + return of_platform_bus_probe(NULL, altera_of_bus_ids, NULL);
>> +}
>> +
>> +device_initcall(nios2_soc_device_init);
>>
> I think you should use of_platform_populate instead of of_platform_bus_probe
> here.

Okay, will change to of_platform_populate().

Regards
Ley Foon