linux-kernel - Re: [PATCH v1] usb: typec: mux: gpio-sbu: Allow GPIO operations to sleep

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Message-ID: <ZhzPJ/q0xl7FsBiG@kuha.fi.intel.com>
Date: Mon, 15 Apr 2024 09:54:31 +0300
From: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To: Francesco Dolcini <francesco@...cini.it>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Francesco Dolcini <francesco.dolcini@...adex.com>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alan Stern <stern@...land.harvard.edu>,
	Bjorn Andersson <andersson@...nel.org>
Subject: Re: [PATCH v1] usb: typec: mux: gpio-sbu: Allow GPIO operations to
 sleep

On Tue, Apr 09, 2024 at 09:09:10PM +0200, Francesco Dolcini wrote:
> From: Francesco Dolcini <francesco.dolcini@...adex.com>
> 
> Use gpiod_set_value_cansleep() to support gpiochips which can
> sleep like, e.g. I2C GPIO expanders.
> 
> Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>

Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> ---
>  drivers/usb/typec/mux/gpio-sbu-mux.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/usb/typec/mux/gpio-sbu-mux.c b/drivers/usb/typec/mux/gpio-sbu-mux.c
> index ad60fd4e8431..374168482d36 100644
> --- a/drivers/usb/typec/mux/gpio-sbu-mux.c
> +++ b/drivers/usb/typec/mux/gpio-sbu-mux.c
> @@ -48,10 +48,10 @@ static int gpio_sbu_switch_set(struct typec_switch_dev *sw,
>  	}
>  
>  	if (enabled != sbu_mux->enabled)
> -		gpiod_set_value(sbu_mux->enable_gpio, enabled);
> +		gpiod_set_value_cansleep(sbu_mux->enable_gpio, enabled);
>  
>  	if (swapped != sbu_mux->swapped)
> -		gpiod_set_value(sbu_mux->select_gpio, swapped);
> +		gpiod_set_value_cansleep(sbu_mux->select_gpio, swapped);
>  
>  	sbu_mux->enabled = enabled;
>  	sbu_mux->swapped = swapped;
> @@ -82,7 +82,7 @@ static int gpio_sbu_mux_set(struct typec_mux_dev *mux,
>  		break;
>  	}
>  
> -	gpiod_set_value(sbu_mux->enable_gpio, sbu_mux->enabled);
> +	gpiod_set_value_cansleep(sbu_mux->enable_gpio, sbu_mux->enabled);
>  
>  	mutex_unlock(&sbu_mux->lock);
>  
> @@ -141,7 +141,7 @@ static void gpio_sbu_mux_remove(struct platform_device *pdev)
>  {
>  	struct gpio_sbu_mux *sbu_mux = platform_get_drvdata(pdev);
>  
> -	gpiod_set_value(sbu_mux->enable_gpio, 0);
> +	gpiod_set_value_cansleep(sbu_mux->enable_gpio, 0);
>  
>  	typec_mux_unregister(sbu_mux->mux);
>  	typec_switch_unregister(sbu_mux->sw);
> -- 
> 2.39.2

-- 
heikki