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| author | Daniel Scally <djrscally@gmail.com> | 2021-01-07 14:28:27 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-01-26 19:24:18 +0100 |
| commit | acd418bfcfc415cf5e6414b6d1c6acfec850f290 (patch) | |
| tree | 52b26c06c9eb0dee9860cd28cfe6fbf521caaacd /drivers/base/property.c | |
| parent | media: device property: Return true in fwnode_device_is_available for NULL ops (diff) | |
| download | linux-acd418bfcfc415cf5e6414b6d1c6acfec850f290.tar.xz linux-acd418bfcfc415cf5e6414b6d1c6acfec850f290.zip | |
media: device property: Call fwnode_graph_get_endpoint_by_id() for fwnode->secondary
This function is used to find fwnode endpoints against a device. In
some instances those endpoints are software nodes which are children of
fwnode->secondary. Add support to fwnode_graph_get_endpoint_by_id() to
find those endpoints by recursively calling itself passing the ptr to
fwnode->secondary in the event no endpoint is found for the primary.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/base/property.c')
| -rw-r--r-- | drivers/base/property.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/base/property.c b/drivers/base/property.c index 0bf5260f14c6..1421e9548857 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -1215,7 +1215,14 @@ fwnode_graph_get_endpoint_by_id(const struct fwnode_handle *fwnode, best_ep_id = fwnode_ep.id; } - return best_ep; + if (best_ep) + return best_ep; + + if (fwnode && !IS_ERR_OR_NULL(fwnode->secondary)) + return fwnode_graph_get_endpoint_by_id(fwnode->secondary, port, + endpoint, flags); + + return NULL; } EXPORT_SYMBOL_GPL(fwnode_graph_get_endpoint_by_id); |