[PATCH v9 5/6] pwm: dwc: round rate divisions up

[Ben Dooks]

As suggested, round up the counter variables to ensure we
always produce a longer period calculation.

Reported-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
---
 drivers/pwm/pwm-dwc-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pwm/pwm-dwc-core.c b/drivers/pwm/pwm-dwc-core.c
index 3b856685029d..6358e3345210 100644
--- a/drivers/pwm/pwm-dwc-core.c
+++ b/drivers/pwm/pwm-dwc-core.c
@@ -50,13 +50,13 @@ static int __dwc_pwm_configure_timer(struct dwc_pwm *dwc,
 	 * 2^32 periods.
 	 */
 	tmp = state->duty_cycle * dwc->clk_rate;
-	tmp = DIV_ROUND_CLOSEST_ULL(tmp, NSEC_PER_SEC);
+	tmp = DIV_ROUND_UP_ULL(tmp, NSEC_PER_SEC);
 	if (tmp < 1 || tmp > (1ULL << 32))
 		return -ERANGE;
 	low = tmp - 1;
 
 	tmp = (state->period - state->duty_cycle) * dwc->clk_rate;
-	tmp = DIV_ROUND_CLOSEST_ULL(tmp, NSEC_PER_SEC);
+	tmp = DIV_ROUND_UP_ULL(tmp, NSEC_PER_SEC);
 	if (tmp < 1 || tmp > (1ULL << 32))
 		return -ERANGE;
 	high = tmp - 1;
-- 
2.40.1