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authorAndy Voltz <andy.voltz@timesys.com>2010-11-15 16:00:38 -0500
committerAndy Voltz <andy.voltz@timesys.com>2010-11-17 11:30:34 -0500
commit2e0ae4bf137e282e825b27b02eb46f86c59d004e (patch)
tree7c2534acd757ca414f02c5b983ee67eb2b2493c6 /drivers/clocksource/sh_tmu.c
parent22763c5cf3690a681551162c15d34d935308c8d7 (diff)
Bump Linux kernel to 2.6.32.25
Diffstat (limited to 'drivers/clocksource/sh_tmu.c')
-rw-r--r--drivers/clocksource/sh_tmu.c26
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 93c2322feab7..c0732466fb87 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -199,16 +199,8 @@ static cycle_t sh_tmu_clocksource_read(struct clocksource *cs)
static int sh_tmu_clocksource_enable(struct clocksource *cs)
{
struct sh_tmu_priv *p = cs_to_sh_tmu(cs);
- int ret;
-
- ret = sh_tmu_enable(p);
- if (ret)
- return ret;
- /* TODO: calculate good shift from rate and counter bit width */
- cs->shift = 10;
- cs->mult = clocksource_hz2mult(p->rate, cs->shift);
- return 0;
+ return sh_tmu_enable(p);
}
static void sh_tmu_clocksource_disable(struct clocksource *cs)
@@ -228,6 +220,16 @@ static int sh_tmu_register_clocksource(struct sh_tmu_priv *p,
cs->disable = sh_tmu_clocksource_disable;
cs->mask = CLOCKSOURCE_MASK(32);
cs->flags = CLOCK_SOURCE_IS_CONTINUOUS;
+
+ /* clk_get_rate() needs an enabled clock */
+ clk_enable(p->clk);
+ /* channel will be configured at parent clock / 4 */
+ p->rate = clk_get_rate(p->clk) / 4;
+ clk_disable(p->clk);
+ /* TODO: calculate good shift from rate and counter bit width */
+ cs->shift = 10;
+ cs->mult = clocksource_hz2mult(p->rate, cs->shift);
+
pr_info("sh_tmu: %s used as clock source\n", cs->name);
clocksource_register(cs);
return 0;
@@ -323,15 +325,15 @@ static void sh_tmu_register_clockevent(struct sh_tmu_priv *p,
ced->set_next_event = sh_tmu_clock_event_next;
ced->set_mode = sh_tmu_clock_event_mode;
+ pr_info("sh_tmu: %s used for clock events\n", ced->name);
+ clockevents_register_device(ced);
+
ret = setup_irq(p->irqaction.irq, &p->irqaction);
if (ret) {
pr_err("sh_tmu: failed to request irq %d\n",
p->irqaction.irq);
return;
}
-
- pr_info("sh_tmu: %s used for clock events\n", ced->name);
- clockevents_register_device(ced);
}
static int sh_tmu_register(struct sh_tmu_priv *p, char *name,