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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-09-12 13:04:37 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-12 13:04:37 +0200 |
| commit | 87d721ad7a37b7650dd710c88dd5c6a5bf9fe996 (patch) | |
| tree | 869d633803eb7c429624d3bd16a6117816849763 /arch/arm/plat-s3c | |
| parent | Merge branch 'devel-stable' into devel (diff) | |
| parent | ARM: Fix pfn_valid() for sparse memory (diff) | |
| download | linux-87d721ad7a37b7650dd710c88dd5c6a5bf9fe996.tar.xz linux-87d721ad7a37b7650dd710c88dd5c6a5bf9fe996.zip | |
Merge branch 'master' into devel
Diffstat (limited to 'arch/arm/plat-s3c')
| -rw-r--r-- | arch/arm/plat-s3c/pwm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c/pwm.c b/arch/arm/plat-s3c/pwm.c index f3d37ac5595b..4fdc5b307fd2 100644 --- a/arch/arm/plat-s3c/pwm.c +++ b/arch/arm/plat-s3c/pwm.c @@ -247,6 +247,10 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) tcmp = duty_ns / tin_ns; tcmp = tcnt - tcmp; + /* the pwm hw only checks the compare register after a decrement, + so the pin never toggles if tcmp = tcnt */ + if (tcmp == tcnt) + tcmp--; pwm_dbg(pwm, "tin_ns=%lu, tcmp=%ld/%lu\n", tin_ns, tcmp, tcnt); |