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path: root/drivers/clocksource/tcb_clksrc.c
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Diffstat (limited to 'drivers/clocksource/tcb_clksrc.c')
-rw-r--r--drivers/clocksource/tcb_clksrc.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index d28d2fe798d5..6ee91401918e 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -193,10 +193,17 @@ static int __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
struct clk *t2_clk = tc->clk[2];
int irq = tc->irq[2];
+ ret = clk_prepare_enable(tc->slow_clk);
+ if (ret)
+ return ret;
+
/* try to enable t2 clk to avoid future errors in mode change */
ret = clk_prepare_enable(t2_clk);
- if (ret)
+ if (ret) {
+ clk_disable_unprepare(tc->slow_clk);
return ret;
+ }
+
clk_disable(t2_clk);
clkevt.regs = tc->regs;
@@ -208,7 +215,8 @@ static int __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
ret = request_irq(irq, ch2_irq, IRQF_TIMER, "tc_clkevt", &clkevt);
if (ret) {
- clk_disable_unprepare(t2_clk);
+ clk_unprepare(t2_clk);
+ clk_disable_unprepare(tc->slow_clk);
return ret;
}