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authorLinus Walleij <linus.walleij@linaro.org>2017-05-18 22:16:58 +0200
committerDaniel Lezcano <daniel.lezcano@linaro.org>2017-06-12 10:13:57 +0200
commit2a55e98f9f76825d78a4e6ef315c35fccabf5212 (patch)
tree73ced736a2116c123797a5434f0e07dbc0272f62 /drivers/clocksource/timer-fttmr010.c
parentarm: aspeed: Add clock-names property to timer node (diff)
downloadlinux-2a55e98f9f76825d78a4e6ef315c35fccabf5212.tar.xz
linux-2a55e98f9f76825d78a4e6ef315c35fccabf5212.zip
clocksource/drivers/fttmr010: Fix the clock handling
We need to also prepare and enable the clock we are using to get the right reference count and avoid it being shut off. Tested-by: Jonas Jensen <jonas.jensen@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource/timer-fttmr010.c')
-rw-r--r--drivers/clocksource/timer-fttmr010.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/clocksource/timer-fttmr010.c b/drivers/clocksource/timer-fttmr010.c
index b4a6f1e4bc54..58ce017e4a65 100644
--- a/drivers/clocksource/timer-fttmr010.c
+++ b/drivers/clocksource/timer-fttmr010.c
@@ -238,12 +238,18 @@ static int __init fttmr010_timer_of_init(struct device_node *np)
* and using EXTCLK is not supported in the driver.
*/
struct clk *clk;
+ int ret;
clk = of_clk_get_by_name(np, "PCLK");
if (IS_ERR(clk)) {
- pr_err("could not get PCLK");
+ pr_err("could not get PCLK\n");
return PTR_ERR(clk);
}
+ ret = clk_prepare_enable(clk);
+ if (ret) {
+ pr_err("failed to enable PCLK\n");
+ return ret;
+ }
tick_rate = clk_get_rate(clk);
return fttmr010_timer_common_init(np);