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author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2019-08-25 17:58:38 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-08-28 13:33:42 +0200 |
commit | e0c563bbf4df3da50d654eb744441f695ceffcac (patch) | |
tree | 5edab7cc4b0cf5f6ff2c92820ddac3550e71ef09 | |
parent | 058556a5163c68e13ce165f861b895b9f6e9ac32 (diff) | |
download | barebox-e0c563bbf4df3da50d654eb744441f695ceffcac.tar.gz barebox-e0c563bbf4df3da50d654eb744441f695ceffcac.tar.xz |
reset_source: use instance = -1 as default
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@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r-- | common/oftree.c | 5 | ||||
-rw-r--r-- | common/reset_source.c | 2 | ||||
-rw-r--r-- | include/reset_source.h | 2 |
3 files changed, 5 insertions, 4 deletions
diff --git a/common/oftree.c b/common/oftree.c index 5bb5420a78..28a3b965ff 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 1955d3f87e..e24aa337a7 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 13bc3bcfde..2848a91115 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) |