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pwm: iqs620a: Use devm_blocking_notifier_chain_register()

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Replace the blocking_notifier_chain_register() +
devm_add_action_or_reset() pattern with a single call to
devm_blocking_notifier_chain_register(), removing the
iqs620_pwm_notifier_unregister() callback.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Link: https://patch.msgid.link/20260816060648.4030-3-farbere@amazon.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
This commit is contained in:
Eliav Farber 2026-08-16 06:06:01 +00:00 committed by Uwe Kleine-König
parent ebda763592
commit 6b0c6ff767
1 changed files with 3 additions and 20 deletions
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23
drivers/pwm/pwm-iqs620a.c
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@ -173,18 +173,6 @@ static const struct pwm_ops iqs620_pwm_ops = {
.get_state = iqs620_pwm_get_state,
};
static void iqs620_pwm_notifier_unregister(void *context)
{
struct iqs620_pwm_private *iqs620_pwm = context;
int ret;
ret = blocking_notifier_chain_unregister(&iqs620_pwm->iqs62x->nh,
&iqs620_pwm->notifier);
if (ret)
dev_err(iqs620_pwm->dev,
"Failed to unregister notifier: %d\n", ret);
}
static int iqs620_pwm_probe(struct platform_device *pdev)
{
struct iqs62x_core *iqs62x = dev_get_drvdata(pdev->dev.parent);
@ -218,19 +206,14 @@ static int iqs620_pwm_probe(struct platform_device *pdev)
mutex_init(&iqs620_pwm->lock);
iqs620_pwm->notifier.notifier_call = iqs620_pwm_notifier;
ret = blocking_notifier_chain_register(&iqs620_pwm->iqs62x->nh,
&iqs620_pwm->notifier);
ret = devm_blocking_notifier_chain_register(&pdev->dev,
&iqs620_pwm->iqs62x->nh,
&iqs620_pwm->notifier);
if (ret) {
dev_err(&pdev->dev, "Failed to register notifier: %d\n", ret);
return ret;
}
ret = devm_add_action_or_reset(&pdev->dev,
iqs620_pwm_notifier_unregister,
iqs620_pwm);
if (ret)
return ret;
ret = devm_pwmchip_add(&pdev->dev, chip);
if (ret)
dev_err(&pdev->dev, "Failed to add device: %d\n", ret);