diff options
Diffstat (limited to 'common/reset_source.c')
| -rw-r--r-- | common/reset_source.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/common/reset_source.c b/common/reset_source.c index 80002a93e6..0a69f90a6e 100644 --- a/common/reset_source.c +++ b/common/reset_source.c @@ -11,6 +11,7 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ +#define pr_fmt(fmt) "reset-source: " fmt #include <common.h> #include <init.h> @@ -30,6 +31,7 @@ static const char * const reset_src_names[] = { }; static enum reset_src_type reset_source; +static unsigned int reset_source_priority; enum reset_src_type reset_source_get(void) { @@ -37,20 +39,41 @@ enum reset_src_type reset_source_get(void) } EXPORT_SYMBOL(reset_source_get); -void reset_source_set(enum reset_src_type st) +void reset_source_set_priority(enum reset_src_type st, unsigned int priority) { + if (priority <= reset_source_priority) + return; + reset_source = st; + reset_source_priority = priority; - globalvar_add_simple("system.reset", reset_src_names[reset_source]); + pr_debug("Setting reset source to %s with priority %d\n", + reset_src_names[reset_source], priority); } EXPORT_SYMBOL(reset_source_set); -/* ensure this runs after the 'global' device is already registerd */ static int reset_source_init(void) { - reset_source_set(reset_source); + globalvar_add_simple_enum("system.reset", (unsigned int *)&reset_source, + reset_src_names, ARRAY_SIZE(reset_src_names)); return 0; } coredevice_initcall(reset_source_init); + +/** + * of_get_reset_source_priority() - get the desired reset source priority from + * device tree + * @node: The device_node to read the property from + * + * return: The priority + */ +unsigned int of_get_reset_source_priority(struct device_node *node) +{ + unsigned int priority = RESET_SOURCE_DEFAULT_PRIORITY; + + of_property_read_u32(node, "reset-source-priority", &priority); + + return priority; +} |