[PATCH] pwm: Fix setting period with #pwm-cells = <1> and of_pwm_single_xlate()

From: Uwe Kleine-König
Date: Fri Mar 29 2024 - 06:36:01 EST


For drivers making use of of_pwm_single_xlate() (i.e. those that don't
pass a hwpwm index) and also don't pass flags, setting period was
wrongly skipped. This affects the pwm-pxa and ti-sn65dsi86 drivers.

Reported-by: Karel Balej <balejk@xxxxxxxxx>
Fixes: 40ade0c2e794 ("pwm: Let the of_xlate callbacks accept references without period")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
drivers/pwm/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 54a62879fffa..ee3ef3f44bc5 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -512,7 +512,7 @@ of_pwm_single_xlate(struct pwm_chip *chip, const struct of_phandle_args *args)
if (IS_ERR(pwm))
return pwm;

- if (args->args_count > 1)
+ if (args->args_count > 0)
pwm->args.period = args->args[0];

pwm->args.polarity = PWM_POLARITY_NORMAL;
--
2.43.0