[PATCH] drivers: pwm: remove redundant check in pwm_ops_check()

From: Ben Zong-You Xie via B4 Relay

Date: Thu Jan 29 2026 - 01:43:45 EST


From: Ben Zong-You Xie <ben717@xxxxxxxxxxxxx>

Drop the redundant check for the existence of 'ops->write_waveform'.

Fixes: 17e40c25158f ("pwm: New abstraction for PWM waveforms")
Signed-off-by: Ben Zong-You Xie <ben717@xxxxxxxxxxxxx>
---
drivers/pwm/core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index ec8731515333..450aedd32c81 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -1699,8 +1699,7 @@ static bool pwm_ops_check(const struct pwm_chip *chip)

if (ops->write_waveform) {
if (!ops->round_waveform_tohw ||
- !ops->round_waveform_fromhw ||
- !ops->write_waveform)
+ !ops->round_waveform_fromhw)
return false;

if (PWM_WFHWSIZE < ops->sizeof_wfhw) {

---
base-commit: 63faf32666e03a78cc985bcbae196418cf7d7938
change-id: 20260129-fix-pwm-ops-check-6e36ce09d75a

Best regards,
--
Ben Zong-You Xie <ben717@xxxxxxxxxxxxx>