Re: [PATCH 2/2] USB: pxa25x_udc: use gpio_is_valid

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Philipp Zabel wrote:
> instead of assuming that every GPIO number != 0 is valid while 0 is not.
> 
> Signed-off-by: Philipp Zabel <philipp.zabel@xxxxxxxxx>

Yeah - actually this should be a fix patch and go before the other one.

> ---
>  drivers/usb/gadget/pxa25x_udc.c |   22 +++++++++++-----------
>  1 files changed, 11 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
> index 0f63810..ec526fc 100644
> --- a/drivers/usb/gadget/pxa25x_udc.c
> +++ b/drivers/usb/gadget/pxa25x_udc.c
> @@ -140,7 +140,7 @@ static int is_vbus_present(void)
>  {
>  	struct pxa2xx_udc_mach_info		*mach = the_controller->mach;
>  
> -	if (mach->gpio_vbus) {
> +	if (gpio_is_valid(mach->gpio_vbus)) {
>  		int value = gpio_get_value(mach->gpio_vbus);
>  
>  		if (mach->gpio_vbus_inverted)
> @@ -159,7 +159,7 @@ static void pullup_off(void)
>  	struct pxa2xx_udc_mach_info		*mach = the_controller->mach;
>  	int off_level = mach->gpio_pullup_inverted;
>  
> -	if (mach->gpio_pullup)
> +	if (gpio_is_valid(mach->gpio_pullup))
>  		gpio_set_value(mach->gpio_pullup, off_level);
>  	else if (mach->udc_command)
>  		mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT);
> @@ -170,7 +170,7 @@ static void pullup_on(void)
>  	struct pxa2xx_udc_mach_info		*mach = the_controller->mach;
>  	int on_level = !mach->gpio_pullup_inverted;
>  
> -	if (mach->gpio_pullup)
> +	if (gpio_is_valid(mach->gpio_pullup))
>  		gpio_set_value(mach->gpio_pullup, on_level);
>  	else if (mach->udc_command)
>  		mach->udc_command(PXA2XX_UDC_CMD_CONNECT);
> @@ -1001,7 +1001,7 @@ static int pxa25x_udc_pullup(struct usb_gadget *_gadget, int is_active)
>  	udc = container_of(_gadget, struct pxa25x_udc, gadget);
>  
>  	/* not all boards support pullup control */
> -	if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
> +	if (!gpio_is_valid(udc->mach->gpio_pullup) && !udc->mach->udc_command)
>  		return -EOPNOTSUPP;
>  
>  	udc->pullup = (is_active != 0);
> @@ -2192,7 +2192,7 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev)
>  
>  	dev->transceiver = otg_get_transceiver();
>  
> -	if (dev->mach->gpio_vbus) {
> +	if (gpio_is_valid(dev->mach->gpio_vbus)) {
>  		if ((retval = gpio_request(dev->mach->gpio_vbus,
>  				"pxa25x_udc GPIO VBUS"))) {
>  			dev_dbg(&pdev->dev,
> @@ -2205,7 +2205,7 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev)
>  	} else
>  		vbus_irq = 0;
>  
> -	if (dev->mach->gpio_pullup) {
> +	if (gpio_is_valid(dev->mach->gpio_pullup)) {
>  		if ((retval = gpio_request(dev->mach->gpio_pullup,
>  				"pca25x_udc GPIO PULLUP"))) {
>  			dev_dbg(&pdev->dev,
> @@ -2288,10 +2288,10 @@ lubbock_fail0:
>  #endif
>  	free_irq(irq, dev);
>   err_irq1:
> -	if (dev->mach->gpio_pullup)
> +	if (gpio_is_valid(dev->mach->gpio_pullup))
>  		gpio_free(dev->mach->gpio_pullup);
>   err_gpio_pullup:
> -	if (dev->mach->gpio_vbus)
> +	if (gpio_is_valid(dev->mach->gpio_vbus))
>  		gpio_free(dev->mach->gpio_vbus);
>   err_gpio_vbus:
>  	if (dev->transceiver) {
> @@ -2330,11 +2330,11 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev)
>  		free_irq(LUBBOCK_USB_IRQ, dev);
>  	}
>  #endif
> -	if (dev->mach->gpio_vbus) {
> +	if (gpio_is_valid(dev->mach->gpio_vbus)) {
>  		free_irq(gpio_to_irq(dev->mach->gpio_vbus), dev);
>  		gpio_free(dev->mach->gpio_vbus);
>  	}
> -	if (dev->mach->gpio_pullup)
> +	if (gpio_is_valid(dev->mach->gpio_pullup))
>  		gpio_free(dev->mach->gpio_pullup);
>  
>  	clk_put(dev->clk);
> @@ -2370,7 +2370,7 @@ static int pxa25x_udc_suspend(struct platform_device *dev, pm_message_t state)
>  	struct pxa25x_udc	*udc = platform_get_drvdata(dev);
>  	unsigned long flags;
>  
> -	if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
> +	if (!gpio_is_valid(udc->mach->gpio_pullup) && !udc->mach->udc_command)
>  		WARNING("USB host won't detect disconnect!\n");
>  	udc->suspended = 1;
>  

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