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SubjectRe: [PATCH v2 06/12] software_node: Add support for fwnode_graph*() family of functions
On Thu, Dec 17, 2020 at 11:43:31PM +0000, Daniel Scally wrote:
> From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
>
> This implements the remaining .graph_* callbacks in the
> fwnode operations structure for the software nodes. That makes
> the fwnode_graph*() functions available in the drivers also
> when software nodes are used.
>
> The implementation tries to mimic the "OF graph" as much as
> possible, but there is no support for the "reg" device
> property. The ports will need to have the index in their
> name which starts with "port@" (for example "port@0", "port@1",
> ...) and endpoints will use the index of the software node
> that is given to them during creation. The port nodes can
> also be grouped under a specially named "ports" subnode,
> just like in DT, if necessary.
>
> The remote-endpoints are reference properties under the
> endpoint nodes that are named "remote-endpoint".

...

> + while ((port = software_node_get_next_child(parent, old))) {
> + if (!strncmp(to_swnode(port)->node->name, "port", 4))
> + return port;
> + old = port;
> + }

Dunno if we need defines for port and its length here.

...

> + ret = kstrtou32(swnode->parent->node->name + 5, 10, &endpoint->port);

But here at least comment is needed what 5 means ('port@' I suppose).

> + if (ret)
> + return ret;


--
With Best Regards,
Andy Shevchenko


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