提交 fdca679d 编写于 作者: L Linus Walleij 提交者: Daniel Lezcano

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: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
上级 2e8bac53
......@@ -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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