Re: [PATCH] USB: bcma: use simpler devm helper for getting vcc GPIO

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Hi,

On 03/23/2016 07:37 PM, Rafał Miłecki wrote:
> Thanks to switching to devm_gpiod_get:
> 1) We don't have to pass fwnode pointer
> 2) We can request initial GPIO value at getting call
> This was successfully tested on Netgear R6250 (BCM4708).
>
> Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx>
> ---
>  drivers/usb/host/bcma-hcd.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
> index 963e2d0..172ef17 100644
> --- a/drivers/usb/host/bcma-hcd.c
> +++ b/drivers/usb/host/bcma-hcd.c
> @@ -352,10 +352,8 @@ static int bcma_hcd_probe(struct bcma_device *core)
>  	usb_dev->core = core;
>  
>  	if (core->dev.of_node)
> -		usb_dev->gpio_desc = devm_get_gpiod_from_child(&core->dev, "vcc",
> -							       &core->dev.of_node->fwnode);
> -	if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
> -		gpiod_direction_output(usb_dev->gpio_desc, 1);
> +		usb_dev->gpio_desc = devm_gpiod_get(&core->dev, "vcc",
> +						    GPIOD_OUT_HIGH);

Do you need to check the returned descriptor?

Best regards,
Baolu

>  
>  	switch (core->id.id) {
>  	case BCMA_CORE_USB20_HOST:

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