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authorMatheus Castello <matheus@castello.eng.br>2020-02-19 03:48:10 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2020-02-27 11:42:00 +0300
commitad1ded9d2e3d1eb452ff58d325aadf237e187bd9 (patch)
tree0917a4f1d8177a8a6838bbbf245f3a981dfac889 /drivers
parentca7b72b5a5f248b72c88441a93bdcee22f42b9b3 (diff)
downloadlinux-ad1ded9d2e3d1eb452ff58d325aadf237e187bd9.tar.xz
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
Diffstat (limited to 'drivers')
-rw-r--r--drivers/clocksource/timer-owl.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/clocksource/timer-owl.c b/drivers/clocksource/timer-owl.c
index 900fe736145d..ac97420bfa7c 100644
--- a/drivers/clocksource/timer-owl.c
+++ b/drivers/clocksource/timer-owl.c
@@ -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);