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path: root/drivers/clocksource/moxart_timer.c
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Diffstat (limited to 'drivers/clocksource/moxart_timer.c')
-rw-r--r--drivers/clocksource/moxart_timer.c39
1 files changed, 26 insertions, 13 deletions
diff --git a/drivers/clocksource/moxart_timer.c b/drivers/clocksource/moxart_timer.c
index 19857af651c1..841454417acd 100644
--- a/drivers/clocksource/moxart_timer.c
+++ b/drivers/clocksource/moxart_timer.c
@@ -119,34 +119,45 @@ static struct irqaction moxart_timer_irq = {
.dev_id = &moxart_clockevent,
};
-static void __init moxart_timer_init(struct device_node *node)
+static int __init moxart_timer_init(struct device_node *node)
{
int ret, irq;
unsigned long pclk;
struct clk *clk;
base = of_iomap(node, 0);
- if (!base)
- panic("%s: of_iomap failed\n", node->full_name);
+ if (!base) {
+ pr_err("%s: of_iomap failed\n", node->full_name);
+ return -ENXIO;
+ }
irq = irq_of_parse_and_map(node, 0);
- if (irq <= 0)
- panic("%s: irq_of_parse_and_map failed\n", node->full_name);
+ if (irq <= 0) {
+ pr_err("%s: irq_of_parse_and_map failed\n", node->full_name);
+ return -EINVAL;
+ }
ret = setup_irq(irq, &moxart_timer_irq);
- if (ret)
- panic("%s: setup_irq failed\n", node->full_name);
+ if (ret) {
+ pr_err("%s: setup_irq failed\n", node->full_name);
+ return ret;
+ }
clk = of_clk_get(node, 0);
- if (IS_ERR(clk))
- panic("%s: of_clk_get failed\n", node->full_name);
+ if (IS_ERR(clk)) {
+ pr_err("%s: of_clk_get failed\n", node->full_name);
+ return PTR_ERR(clk);
+ }
pclk = clk_get_rate(clk);
- if (clocksource_mmio_init(base + TIMER2_BASE + REG_COUNT,
- "moxart_timer", pclk, 200, 32,
- clocksource_mmio_readl_down))
- panic("%s: clocksource_mmio_init failed\n", node->full_name);
+ ret = clocksource_mmio_init(base + TIMER2_BASE + REG_COUNT,
+ "moxart_timer", pclk, 200, 32,
+ clocksource_mmio_readl_down);
+ if (ret) {
+ pr_err("%s: clocksource_mmio_init failed\n", node->full_name);
+ return ret;
+ }
clock_count_per_tick = DIV_ROUND_CLOSEST(pclk, HZ);
@@ -164,5 +175,7 @@ static void __init moxart_timer_init(struct device_node *node)
*/
clockevents_config_and_register(&moxart_clockevent, pclk,
0x4, 0xfffffffe);
+
+ return 0;
}
CLOCKSOURCE_OF_DECLARE(moxart, "moxa,moxart-timer", moxart_timer_init);