Hi,
I'm working with kernel 4.9.51 LTSI on a custom board with an AM3352.
The system seems to be working just fine, but I'm getting the
following message on boot:
"clocksource_probe: no matching clocksources found"
I did some snooping around and this message is printed by
clocksource_probe(), called during time_init(). This is the function
code:
void __init clocksource_probe(void)
{
struct device_node *np;
const struct of_device_id *match;
of_init_fn_1_ret init_func_ret;
unsigned clocksources = 0;
int ret;
for_each_matching_node_and_match(np, __clksrc_of_table, &match) {
if (!of_device_is_available(np))
continue;
init_func_ret = match->data;
ret = init_func_ret(np);
if (ret) {
pr_err("Failed to initialize '%s': %d",
of_node_full_name(np), ret);
continue;
}
clocksources++;
}
clocksources += acpi_probe_device_table(clksrc);
if (!clocksources)
pr_crit("%s: no matching clocksources found\n", __func__);
}
>From the code, we can see that the message was printed because
clocksources == 0. This implies that there were no matching nodes on
the device tree,
and that acpi_probe_device_table returned 0 (which is correct, seeing
that the kernel has no ACPI support).
This leaves me with two questions:
1 - Is this message a problem indicator? I'm assuming it is, because
it's printed with a pr_crit...
2 - Why is for_each_matching_node_and_match not getting any matches? I
did not find where __clksrc_of_table is initialized, so maybe it's
because it is empty?
Cheers,
Guilherme
_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
