[PATCH v7 10/13] pwm: stm32-lp: Use %llu format specifier for period
From: Guru Das Srinagesh
Date: Mon Mar 09 2020 - 15:35:34 EST
Because period and duty cycle are defined in the PWM framework structs
as ints with units of nanoseconds, the maximum time duration that can be
set is limited to ~2.147 seconds. Redefining them as u64 values will
enable larger time durations to be set.
As a first step, prepare this driver to handle the switch to u64 period
and duty_cycle by updating the format specifier in this dev_dbg message.
The actual switch to u64 period and duty_cycle follows as a separate
patch.
Cc: Fabrice Gasnier <fabrice.gasnier@xxxxxx>
Cc: Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx>
Cc: Alexandre Torgue <alexandre.torgue@xxxxxx>
Signed-off-by: Guru Das Srinagesh <gurus@xxxxxxxxxxxxxx>
---
drivers/pwm/pwm-stm32-lp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pwm/pwm-stm32-lp.c b/drivers/pwm/pwm-stm32-lp.c
index 67fca62..134c146 100644
--- a/drivers/pwm/pwm-stm32-lp.c
+++ b/drivers/pwm/pwm-stm32-lp.c
@@ -61,7 +61,7 @@ static int stm32_pwm_lp_apply(struct pwm_chip *chip, struct pwm_device *pwm,
do_div(div, NSEC_PER_SEC);
if (!div) {
/* Clock is too slow to achieve requested period. */
- dev_dbg(priv->chip.dev, "Can't reach %u ns\n", state->period);
+ dev_dbg(priv->chip.dev, "Can't reach %llu ns\n", state->period);
return -EINVAL;
}
--
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