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