diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2013-11-20 09:58:56 +0100 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2013-12-11 11:40:25 +0100 |
| commit | fdca679d87bb4ac0fdc882dbf3deb47a1f58b813 (patch) | |
| tree | af0f0f0b2336f7f04fcb7df0b68e73520c6287cc /drivers/clocksource | |
| parent | 2e8bac532f8bcd3834853e0a22b130b9fd59270d (diff) | |
| download | linux-fdca679d87bb4ac0fdc882dbf3deb47a1f58b813.tar.bz2 | |
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@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/clksrc-of.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-of.c index 35639cf4e5a2..a30b42c3ac3b 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__); } |