Re: [PATCH 3/4] pinctrl: qcom: switch to devm_gpiochip_add_data()

[Matti Vaittinen <mazziesaccount@gmail.com>]

On 03/05/2025 08:32, Dmitry Baryshkov wrote:
> In order to simplify cleanup actions, use devres-enabled version of
> gpiochip_add_data().
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> ---
>   drivers/pinctrl/qcom/pinctrl-msm.c | 6 +-----
>   1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
> index 88dd462516c76d58b43d49accbddeea38af8f1ec..b2e8f7b3f3e3d5d232b2bd60e5cace62b21ffb03 100644
> --- a/drivers/pinctrl/qcom/pinctrl-msm.c
> +++ b/drivers/pinctrl/qcom/pinctrl-msm.c
> @@ -1449,7 +1449,7 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
>   	girq->handler = handle_bad_irq;
>   	girq->parents[0] = pctrl->irq;
>   
> -	ret = gpiochip_add_data(&pctrl->chip, pctrl);
> +	ret = devm_gpiochip_add_data(pctrl->dev, &pctrl->chip, pctrl);
>   	if (ret) {
>   		dev_err(pctrl->dev, "Failed register gpiochip\n");
>   		return ret;
> @@ -1470,7 +1470,6 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
>   			dev_name(pctrl->dev), 0, 0, chip->ngpio);
>   		if (ret) {
>   			dev_err(pctrl->dev, "Failed to add pin range\n");
> -			gpiochip_remove(&pctrl->chip);
>   			return ret;
>   		}
>   	}
> @@ -1608,9 +1607,6 @@ EXPORT_SYMBOL(msm_pinctrl_probe);
>   
>   void msm_pinctrl_remove(struct platform_device *pdev)
>   {
> -	struct msm_pinctrl *pctrl = platform_get_drvdata(pdev);
> -
> -	gpiochip_remove(&pctrl->chip);
>   }
>   EXPORT_SYMBOL(msm_pinctrl_remove);

I suppose this should also make the time window when the GPIO chip has 
gone, but pinmux is still there (to call the 'gpiochip_line_is_valid()') 
smaller.

FWIW:
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>

Yours,
	-- Matti