Author: manu
Date: Tue Nov 17 14:59:58 2020
New Revision: 367767
URL: https://svnweb.freebsd.org/changeset/base/367767
Log:
syscon: Add syscon_get_by_ofw_node
This allow to get a syscon node defined under a specific fdt node (which isn't
always the device one).
Modified:
head/sys/dev/extres/syscon/syscon.c
head/sys/dev/extres/syscon/syscon.h
Modified: head/sys/dev/extres/syscon/syscon.c
==============================================================================
--- head/sys/dev/extres/syscon/syscon.c Tue Nov 17 14:58:30 2020
(r367766)
+++ head/sys/dev/extres/syscon/syscon.c Tue Nov 17 14:59:58 2020
(r367767)
@@ -264,6 +264,21 @@ syscon_get_ofw_node(struct syscon *syscon)
}
int
+syscon_get_by_ofw_node(device_t cdev, phandle_t node, struct syscon **syscon)
+{
+
+ SYSCON_TOPO_SLOCK();
+ *syscon = syscon_find_by_ofw_node(node);
+ if (*syscon == NULL) {
+ SYSCON_TOPO_UNLOCK();
+ device_printf(cdev, "Failed to find syscon node\n");
+ return (ENODEV);
+ }
+ SYSCON_TOPO_UNLOCK();
+ return (0);
+}
+
+int
syscon_get_by_ofw_property(device_t cdev, phandle_t cnode, char *name,
struct syscon **syscon)
{
Modified: head/sys/dev/extres/syscon/syscon.h
==============================================================================
--- head/sys/dev/extres/syscon/syscon.h Tue Nov 17 14:58:30 2020
(r367766)
+++ head/sys/dev/extres/syscon/syscon.h Tue Nov 17 14:59:58 2020
(r367767)
@@ -73,6 +73,7 @@ struct syscon *syscon_create_ofw_node(device_t pdev,
phandle_t syscon_get_ofw_node(struct syscon *syscon);
int syscon_get_by_ofw_property(device_t consumer, phandle_t node, char *name,
struct syscon **syscon);
+int syscon_get_by_ofw_node(device_t cdev, phandle_t node, struct syscon
**syscon);
#endif
#endif /* DEV_SYSCON_H */
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