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clocksource/drivers/owl: Improve owl_timer_init fail messages 

Check the return from clocksource_mmio_init, add messages in case of
an error and in case of not having a defined clock property.

Signed-off-by: Matheus Castello <matheus@castello.eng.br>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200219004810.411190-1-matheus@castello.eng.br
This commit is contained in:
Matheus Castello 2020-02-18 21:48:10 -03:00 committed by Daniel Lezcano
parent ca7b72b5a5
commit ad1ded9d2e
1 changed files with 11 additions and 4 deletions
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15
drivers/clocksource/timer-owl.c
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@ -135,8 +135,11 @@ static int __init owl_timer_init(struct device_node *node)
}
clk = of_clk_get(node, 0);
if (IS_ERR(clk))
return PTR_ERR(clk);
if (IS_ERR(clk)) {
ret = PTR_ERR(clk);
pr_err("Failed to get clock for clocksource (%d)\n", ret);
return ret;
}
rate = clk_get_rate(clk);
@ -144,8 +147,12 @@ static int __init owl_timer_init(struct device_node *node)
owl_timer_set_enabled(owl_clksrc_base, true);
sched_clock_register(owl_timer_sched_read, 32, rate);
clocksource_mmio_init(owl_clksrc_base + OWL_Tx_VAL, node->name,
rate, 200, 32, clocksource_mmio_readl_up);
ret = clocksource_mmio_init(owl_clksrc_base + OWL_Tx_VAL, node->name,
rate, 200, 32, clocksource_mmio_readl_up);
if (ret) {
pr_err("Failed to register clocksource (%d)\n", ret);
return ret;
}
owl_timer_reset(owl_clkevt_base);