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| author | Victor(Weiguo) Pan <wpan@nvidia.com> | 2016-06-22 17:17:20 +0530 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2016-07-11 12:49:32 +0200 |
| commit | e0ee1a75f412cc9f3b16127742a30baf975ec51f (patch) | |
| tree | dfb4824aa4c49facba20717dfaeb765491e4f4f7 /drivers/pwm/pwm-tegra.c | |
| parent | 5dfbd2bd5439f1ada5ddaa3883e9e038de5d2abe (diff) | |
| download | op-kernel-dev-e0ee1a75f412cc9f3b16127742a30baf975ec51f.zip op-kernel-dev-e0ee1a75f412cc9f3b16127742a30baf975ec51f.tar.gz | |
pwm: tegra: Allow 100 % duty cycle
To get 100 % duty cycle (always high), pulse width needs to be set to
256.
Signed-off-by: Victor(Weiguo) Pan <wpan@nvidia.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/pwm-tegra.c')
| -rw-r--r-- | drivers/pwm/pwm-tegra.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c index 097658e..2026eaa 100644 --- a/drivers/pwm/pwm-tegra.c +++ b/drivers/pwm/pwm-tegra.c @@ -77,7 +77,7 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, * per (1 << PWM_DUTY_WIDTH) cycles and make sure to round to the * nearest integer during division. */ - c = duty_ns * ((1 << PWM_DUTY_WIDTH) - 1) + period_ns / 2; + c = duty_ns * (1 << PWM_DUTY_WIDTH) + period_ns / 2; do_div(c, period_ns); val = (u32)c << PWM_DUTY_SHIFT; |
