On Tue, Feb 11, 2014 at 5:45 AM, Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> wrote: > From: Philipp Zabel <philipp.zabel@xxxxxxxxx> > > This patch moves the parsing helpers used to parse connected graphs > in the device tree, like the video interface bindings documented in > Documentation/devicetree/bindings/media/video-interfaces.txt, from > drivers/media/v4l2-core to drivers/of. This is the opposite direction things have been moving... > This allows to reuse the same parser code from outside the V4L2 framework, > most importantly from display drivers. There have been patches that duplicate > the code (and I am going to send one of my own), such as > http://lists.freedesktop.org/archives/dri-devel/2013-August/043308.html > and others that parse the same binding in a different way: > https://www.mail-archive.com/linux-omap@xxxxxxxxxxxxxxx/msg100761.html > > I think that all common video interface parsing helpers should be moved to a > single place, outside of the specific subsystems, so that it can be reused > by all drivers. Perhaps that should be done rather than moving to drivers/of now and then again to somewhere else. > I moved v4l2_of_get_next_endpoint, v4l2_of_get_remote_port, > and v4l2_of_get_remote_port_parent. They are renamed to > of_graph_get_next_endpoint, of_graph_get_remote_port, and > of_graph_get_remote_port_parent, respectively. > > Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> > --- > drivers/media/Kconfig | 1 + > drivers/media/v4l2-core/v4l2-of.c | 117 --------------------------------- > drivers/of/Kconfig | 3 + > drivers/of/Makefile | 1 + > drivers/of/of_graph.c | 133 ++++++++++++++++++++++++++++++++++++++ > include/linux/of_graph.h | 23 +++++++ > include/media/v4l2-of.h | 16 ++--- > 7 files changed, 167 insertions(+), 127 deletions(-) > create mode 100644 drivers/of/of_graph.c > create mode 100644 include/linux/of_graph.h [snip] > diff --git a/include/media/v4l2-of.h b/include/media/v4l2-of.h > index 541cea4..404a493 100644 > --- a/include/media/v4l2-of.h > +++ b/include/media/v4l2-of.h > @@ -17,6 +17,7 @@ > #include <linux/list.h> > #include <linux/types.h> > #include <linux/errno.h> > +#include <linux/of_graph.h> > > #include <media/v4l2-mediabus.h> > > @@ -72,11 +73,6 @@ struct v4l2_of_endpoint { > #ifdef CONFIG_OF > int v4l2_of_parse_endpoint(const struct device_node *node, > struct v4l2_of_endpoint *endpoint); > -struct device_node *v4l2_of_get_next_endpoint(const struct device_node *parent, > - struct device_node *previous); > -struct device_node *v4l2_of_get_remote_port_parent( > - const struct device_node *node); > -struct device_node *v4l2_of_get_remote_port(const struct device_node *node); > #else /* CONFIG_OF */ > > static inline int v4l2_of_parse_endpoint(const struct device_node *node, > @@ -85,25 +81,25 @@ static inline int v4l2_of_parse_endpoint(const struct device_node *node, > return -ENOSYS; > } > > +#endif /* CONFIG_OF */ > + > static inline struct device_node *v4l2_of_get_next_endpoint( > const struct device_node *parent, > struct device_node *previous) > { > - return NULL; > + return of_graph_get_next_endpoint(parent, previous); Won't this break for !OF? Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
