As with platform device id (does someone still remember?) 0 might be a valid
id. So use -1 for "unknown" or "doesn't apply" instead of 0.
Also don't pass the instance to the device tree if negative. (This ends
up as 0xffffffff otherwise.)
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
common/oftree.c | 5 +++--
common/reset_source.c | 2 +-
include/reset_source.h | 2 +-
3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/common/oftree.c b/common/oftree.c
index 5bb5420a785b..28a3b965ffee 100644
--- a/common/oftree.c
+++ b/common/oftree.c
@@ -144,6 +144,7 @@ static int of_fixup_bootargs(struct device_node *root, void *unused)
struct device_node *node;
const char *str;
int err;
+ int instance = reset_source_get_instance();
str = linux_bootargs_get();
if (!str)
@@ -160,8 +161,8 @@ static int of_fixup_bootargs(struct device_node *root, void *unused)
return err;
of_property_write_string(node, "reset-source", reset_source_name());
- of_property_write_u32(node, "reset-source-instance",
- reset_source_get_instance());
+ if (instance >= 0)
+ of_property_write_u32(node, "reset-source-instance", instance);
return of_fixup_bootargs_bootsource(root, node);
}
diff --git a/common/reset_source.c b/common/reset_source.c
index 1955d3f87e33..e24aa337a7c4 100644
--- a/common/reset_source.c
+++ b/common/reset_source.c
@@ -54,7 +54,7 @@ void reset_source_set_priority(enum reset_src_type st, unsigned int priority)
reset_source = st;
reset_source_priority = priority;
- reset_source_instance = 0;
+ reset_source_instance = -1;
pr_debug("Setting reset source to %s with priority %d\n",
reset_src_names[reset_source], priority);
diff --git a/include/reset_source.h b/include/reset_source.h
index 13bc3bcfde7c..2848a91115b8 100644
--- a/include/reset_source.h
+++ b/include/reset_source.h
@@ -49,7 +49,7 @@ static inline enum reset_src_type reset_source_get(void)
static inline int reset_source_get_instance(void)
{
- return 0;
+ return -1;
}
static inline unsigned int of_get_reset_source_priority(struct device_node *node)
--
2.20.1
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