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| author | Shawn Guo <shawn.guo@linaro.org> | 2012-04-28 16:02:37 (GMT) |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2012-05-08 16:02:39 (GMT) |
| commit | 39d1367e11e406ddb9bcd5f2e4798f3c355db7d9 (patch) | |
| tree | dbb5eb076cd1268d1e52529afe3d351755d9bb86 | |
| parent | 7d81397cd93da2850e0aec54c3ba4eb4908a675b (diff) | |
| download | linux-39d1367e11e406ddb9bcd5f2e4798f3c355db7d9.tar.xz | |
ARM: mxs: request clock for timer
When mxs_timer_init() does not have a timer_clk passed in, it should
try to request clock from clkdev system.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
| -rw-r--r-- | arch/arm/mach-mxs/timer.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-mxs/timer.c b/arch/arm/mach-mxs/timer.c index 564a632..575e8fd 100644 --- a/arch/arm/mach-mxs/timer.c +++ b/arch/arm/mach-mxs/timer.c @@ -20,6 +20,7 @@ * MA 02110-1301, USA. */ +#include <linux/err.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/clockchips.h> @@ -245,6 +246,14 @@ static int __init mxs_clocksource_init(struct clk *timer_clk) void __init mxs_timer_init(struct clk *timer_clk, int irq) { + if (!timer_clk) { + timer_clk = clk_get_sys("timrot", NULL); + if (IS_ERR(timer_clk)) { + pr_err("%s: failed to get clk\n", __func__); + return; + } + } + clk_prepare_enable(timer_clk); /* |