diff options
| author | Michael Tretter <m.tretter@pengutronix.de> | 2019-09-13 15:14:42 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-09-16 09:06:18 +0200 |
| commit | 32559cecae49998091dd5645b386ed917f5c468d (patch) | |
| tree | af91b1a8977ac3ad1f3178760bc5b6cf9ba5f597 /common | |
| parent | ca7b8f85f0d9455b631461288535a3cef7e58fdf (diff) | |
| download | barebox-32559cecae49998091dd5645b386ed917f5c468d.tar.gz barebox-32559cecae49998091dd5645b386ed917f5c468d.tar.xz | |
firmware: add function to find firmware by devicetree node
Allows to get the firmware manager using a phandle from the devicetree.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'common')
| -rw-r--r-- | common/firmware.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/common/firmware.c b/common/firmware.c index 9d55d73e7a..609cf11822 100644 --- a/common/firmware.c +++ b/common/firmware.c @@ -63,6 +63,24 @@ struct firmware_mgr *firmwaremgr_find(const char *id) } /* + * firmwaremgr_find_by_node - find a firmware device handler + * + * Find a firmware device handler using the device node of the firmware + * handler. This allows to retrieve the firmware handler with a phandle from + * the device tree. + */ +struct firmware_mgr *firmwaremgr_find_by_node(const struct device_node *np) +{ + struct firmware_mgr *mgr; + + list_for_each_entry(mgr, &firmwaremgr_list, list) + if (mgr->handler->dev->parent->device_node == np) + return mgr; + + return NULL; +} + +/* * firmwaremgr_list_handlers - list registered firmware device handlers * in pretty format */ |