Commit-ID: fdca679d87bb4ac0fdc882dbf3deb47a1f58b813
Gitweb: http://git.kernel.org/tip/fdca679d87bb4ac0fdc882dbf3deb47a1f58b813
Author: Linus Walleij <linus.walleij@xxxxxxxxxx>
AuthorDate: Wed, 20 Nov 2013 09:58:56 +0100
Committer: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
CommitDate: Wed, 11 Dec 2013 11:40:25 +0100
clocksource: clksrc-of: Warn if no clock sources are found
Many platforms rely on clocksource_of_init() being implicitly
called for registering clock sources and will get zero warnings
if no working clock source is available. Let's print a critical
error message if no clock source is found.
Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
---
drivers/clocksource/clksrc-of.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-of.c
index 35639cf4..a30b42c 100644
--- a/drivers/clocksource/clksrc-of.c
+++ b/drivers/clocksource/clksrc-of.c
@@ -28,6 +28,7 @@ void __init clocksource_of_init(void)
struct device_node *np;
const struct of_device_id *match;
clocksource_of_init_fn init_func;
+ unsigned clocksources = 0;
for_each_matching_node_and_match(np, __clksrc_of_table, &match) {
if (!of_device_is_available(np))
@@ -36,5 +37,8 @@ void __init clocksource_of_init(void)
init_func = match->data;
init_func(np);
of_node_put(np);
+ clocksources++;
}
+ if (!clocksources)
+ pr_crit("%s: no matching clocksources found\n", __func__);
}
--
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