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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2009-08-10 23:40:50 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2009-08-10 23:40:50 +0200 |
| commit | dcbf77cac640af0ab944d5cbb07934bf6708b4d9 (patch) | |
| tree | e2f4d1b3a1089ee10436cb19740a9cb99f2dc527 /arch/arm/plat-s3c24xx/pwm.c | |
| parent | c00aafcd4977769e8728292302ddbbb8b1082fab (diff) | |
| parent | 85dfd81dc57e8183a277ddd7a56aa65c96f3f487 (diff) | |
| download | op-kernel-dev-dcbf77cac640af0ab944d5cbb07934bf6708b4d9.zip op-kernel-dev-dcbf77cac640af0ab944d5cbb07934bf6708b4d9.tar.gz | |
Merge branch 'master' into for-linus
Diffstat (limited to 'arch/arm/plat-s3c24xx/pwm.c')
| -rw-r--r-- | arch/arm/plat-s3c24xx/pwm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/pwm.c b/arch/arm/plat-s3c24xx/pwm.c index 0120b76..82a6d4d 100644 --- a/arch/arm/plat-s3c24xx/pwm.c +++ b/arch/arm/plat-s3c24xx/pwm.c @@ -246,6 +246,10 @@ 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); |
