Date:   Mon, 03 Jul 2017 16:10:14 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Rob Herring <robh@...nel.org>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Subject: Re: linux-next: manual merge of the sound-asoc tree with the pm tree

On Mon, 03 Jul 2017 04:55:24 +0200,
Stephen Rothwell wrote:
> 
> Hi all,
> 
> [cc-ing the sound tree maintainer]

Thanks.

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

Rob, do you have an immutable branch to drag the affecting commit so
that I can merge & resolve in my side?

I still don't merge ASoC changes yet in my branch, so the pull-request
to Linus will be likely delayed and your tree may be merged earlier
than mine.


Takashi

> On Fri, 23 Jun 2017 12:25:34 +1000 Stephen Rothwell <sfr@...b.auug.org.au> 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 <sfr@...b.auug.org.au>
> > 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 <sfr@...b.auug.org.au>
> > ---
> >  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
> 

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