diff options
author | David S. Miller <davem@davemloft.net> | 2010-06-26 10:27:00 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2010-06-26 10:27:00 -0700 |
commit | c67dda14389205f0a223c5089307495290939b3b (patch) | |
tree | fad0bb26b28703d02a22ebdd44d94eabac4a2ade /drivers/clocksource/sh_tmu.c | |
parent | 43bc2db47292a824152145253b1dd2847e7312a3 (diff) | |
parent | 7e27d6e778cd87b6f2415515d7127eba53fe5d02 (diff) |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/clocksource/sh_tmu.c')
-rw-r--r-- | drivers/clocksource/sh_tmu.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c index 8e44e14ec4c2..de715901b82a 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); + dev_info(&p->pdev->dev, "used as clock source\n"); clocksource_register(cs); return 0; |