Subject: Re: linux-next: manual merge of the sound-asoc tree with the pm tree

From: Stephen Rothwell <[email-masked]>
Date: Mon, 3 Jul 2017 12:55:24 +1000

Hi all,

[cc-ing the sound tree maintainer]

With the merge window opening, just a reminder that this conflict
still exists.

On Fri, 23 Jun 2017 12:25:34 +1000 Stephen Rothwell <[email-masked]> wrote:
>
> Hi all,
> 
> Today's linux-next merge of the sound-asoc tree got a conflict in:
> 
>   drivers/of/base.c
> 
> between commit:
> 
>   1df09bc66f9b ("of: Move OF property and graph API from base.c to property.c")
> 
> from the pm tree and commits:
> 
>   4c9c3d595f1b ("of_graph: add of_graph_get_remote_endpoint()")
>   0ef472a973eb ("of_graph: add of_graph_get_port_parent()")
>   ac1e6958d3be ("of_graph: add of_graph_get_endpoint_count()")
> 
> from the sound-asoc tree.
> 
> This pm tree commit appeared briefly in the devicetree tree 9 days ago,
> so I have done the same resolution as I did then.
> 
> I added the merge fix patch below. This is now fixed as far as linux-next
> is concerned, but any non trivial conflicts should be mentioned to your
> upstream maintainer when your tree is submitted for merging.  You may
> also want to consider cooperating with the maintainer of the conflicting
> tree to minimise any particularly complex conflicts.
> 
> From: Stephen Rothwell <[email-masked]>
> Date: Fri, 23 Jun 2017 12:22:19 +1000
> Subject: [PATCH] of_graph: merge fix up for creating of drivers/of/property.c
> 
> Signed-off-by: Stephen Rothwell <[email-masked]>
> ---
>  drivers/of/property.c | 60 ++++++++++++++++++++++++++++++++++++++++++---------
>  1 file changed, 50 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/of/property.c b/drivers/of/property.c
> index c96389b7c6b3..eda50b4be934 100644
> --- a/drivers/of/property.c
> +++ b/drivers/of/property.c
> @@ -684,6 +684,41 @@ struct device_node *of_graph_get_endpoint_by_regs(
>  EXPORT_SYMBOL(of_graph_get_endpoint_by_regs);
>  
>  /**
> + * of_graph_get_remote_endpoint() - get remote endpoint node
> + * @node: pointer to a local endpoint device_node
> + *
> + * Return: Remote endpoint node associated with remote endpoint node linked
> + *	   to @node. Use of_node_put() on it when done.
> + */
> +struct device_node *of_graph_get_remote_endpoint(const struct device_node *node)
> +{
> +	/* Get remote endpoint node. */
> +	return of_parse_phandle(node, "remote-endpoint", 0);
> +}
> +EXPORT_SYMBOL(of_graph_get_remote_endpoint);
> +
> +/**
> + * of_graph_get_port_parent() - get port's parent node
> + * @node: pointer to a local endpoint device_node
> + *
> + * Return: device node associated with endpoint node linked
> + *	   to @node. Use of_node_put() on it when done.
> + */
> +struct device_node *of_graph_get_port_parent(struct device_node *node)
> +{
> +	unsigned int depth;
> +
> +	/* Walk 3 levels up only if there is 'ports' node. */
> +	for (depth = 3; depth && node; depth--) {
> +		node = of_get_next_parent(node);
> +		if (depth == 2 && of_node_cmp(node->name, "ports"))
> +			break;
> +	}
> +	return node;
> +}
> +EXPORT_SYMBOL(of_graph_get_port_parent);
> +
> +/**
>   * of_graph_get_remote_port_parent() - get remote port's parent node
>   * @node: pointer to a local endpoint device_node
>   *
> @@ -694,18 +729,11 @@ struct device_node *of_graph_get_remote_port_parent(
>  			       const struct device_node *node)
>  {
>  	struct device_node *np;
> -	unsigned int depth;
>  
>  	/* Get remote endpoint node. */
> -	np = of_parse_phandle(node, "remote-endpoint", 0);
> +	np = of_graph_get_remote_endpoint(node);
>  
> -	/* Walk 3 levels up only if there is 'ports' node. */
> -	for (depth = 3; depth && np; depth--) {
> -		np = of_get_next_parent(np);
> -		if (depth == 2 && of_node_cmp(np->name, "ports"))
> -			break;
> -	}
> -	return np;
> +	return of_graph_get_port_parent(np);
>  }
>  EXPORT_SYMBOL(of_graph_get_remote_port_parent);
>  
> @@ -721,13 +749,25 @@ struct device_node *of_graph_get_remote_port(const struct device_node *node)
>  	struct device_node *np;
>  
>  	/* Get remote endpoint node. */
> -	np = of_parse_phandle(node, "remote-endpoint", 0);
> +	np = of_graph_get_remote_endpoint(node);
>  	if (!np)
>  		return NULL;
>  	return of_get_next_parent(np);
>  }
>  EXPORT_SYMBOL(of_graph_get_remote_port);
>  
> +int of_graph_get_endpoint_count(const struct device_node *np)
> +{
> +	struct device_node *endpoint;
> +	int num = 0;
> +
> +	for_each_endpoint_of_node(np, endpoint)
> +		num++;
> +
> +	return num;
> +}
> +EXPORT_SYMBOL(of_graph_get_endpoint_count);
> +
>  /**
>   * of_graph_get_remote_node() - get remote parent device_node for given port/endpoint
>   * @node: pointer to parent device_node containing graph port/endpoint
> -- 
> 2.11.0
> 
> -- 
> Cheers,
> Stephen Rothwell

-- 
Cheers,
Stephen Rothwell