pwm: lpc18xx-sct: Fix a comment to match code
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fri, 2 Dec 2022 18:35:07 +0000 (19:35 +0100)
committerThierry Reding <thierry.reding@gmail.com>
Tue, 6 Dec 2022 11:46:04 +0000 (12:46 +0100)
lpc18xx_pwm_probe() only ensures clk_rate <= NSEC_PER_SEC, the following
reasoning is right even under this slightly lesser condition.

Fixes: 8933d30c5f46 ("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>
drivers/pwm/pwm-lpc18xx-sct.c

index 763f2e3a146d53a21df011798531ce7f621fdbc9..378e1df944dc0b689cecbde03fea3ca7685d6b7d 100644 (file)
@@ -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);