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pwm: lpc18xx-sct: Fix a comment to match code

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lpc18xx_pwm_probe() only ensures clk_rate <= NSEC_PER_SEC, the following
reasoning is right even under this slightly lesser condition.

Fixes: 8933d30c5f ("pwm: lpc18xx: Fix period handling")
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Link: https://lore.kernel.org/r/20221108153013.132514-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Uwe Kleine-König 2022-12-02 19:35:07 +01:00 committed by Thierry Reding
parent 0b5ef3429d
commit 07d8d8d29a
1 changed files with 1 additions and 1 deletions
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2
drivers/pwm/pwm-lpc18xx-sct.c
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@ -175,7 +175,7 @@ static void lpc18xx_pwm_config_duty(struct pwm_chip *chip,
u32 val;
/*
* With clk_rate < NSEC_PER_SEC this cannot overflow.
* With clk_rate <= NSEC_PER_SEC this cannot overflow.
* With duty_ns <= period_ns < max_period_ns this also fits into an u32.
*/
val = mul_u64_u64_div_u64(duty_ns, lpc18xx_pwm->clk_rate, NSEC_PER_SEC);