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pwm: tegra: Use NSEC_PER_SEC

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Instead of using the literal value for the number of nanoseconds per
second, use the macro instead to increase readability.

Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Thierry Reding 2015-02-18 08:40:29 +01:00
parent 8d6cc07385
commit b65af27ad8
1 changed files with 1 additions and 1 deletions
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drivers/pwm/pwm-tegra.c
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@ -87,7 +87,7 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
* cycles at the PWM clock rate will take period_ns nanoseconds.
*/
rate = clk_get_rate(pc->clk) >> PWM_DUTY_WIDTH;
hz = 1000000000ul / period_ns;
hz = NSEC_PER_SEC / period_ns;
rate = (rate + (hz / 2)) / hz;