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SubjectRe: [PATCH 1/3] usb: gadget: udc: atmel: GPIO inversion is handled by gpiod
On Mon, Apr 16, 2018 at 11:34:03AM +0200, Romain Izard wrote:
> When converting to GPIO descriptors, gpiod_get_value automatically
> handles the line inversion flags from the device tree.

Thanks, I totally missed it.

Regards

>
> Do not invert the line twice.
>
> Fixes: 3df034081021fa4b6967ce3364bc7d867ec1c870
>
> Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>

> ---
> drivers/usb/gadget/udc/atmel_usba_udc.c | 3 +--
> drivers/usb/gadget/udc/atmel_usba_udc.h | 1 -
> 2 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
> index 27c16399c7e8..0fe3d0feb8f7 100644
> --- a/drivers/usb/gadget/udc/atmel_usba_udc.c
> +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
> @@ -417,7 +417,7 @@ static inline void usba_int_enb_set(struct usba_udc *udc, u32 val)
> static int vbus_is_present(struct usba_udc *udc)
> {
> if (udc->vbus_pin)
> - return gpiod_get_value(udc->vbus_pin) ^ udc->vbus_pin_inverted;
> + return gpiod_get_value(udc->vbus_pin);
>
> /* No Vbus detection: Assume always present */
> return 1;
> @@ -2076,7 +2076,6 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
>
> udc->vbus_pin = devm_gpiod_get_optional(&pdev->dev, "atmel,vbus",
> GPIOD_IN);
> - udc->vbus_pin_inverted = gpiod_is_active_low(udc->vbus_pin);
>
> if (fifo_mode == 0) {
> pp = NULL;
> diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.h b/drivers/usb/gadget/udc/atmel_usba_udc.h
> index 969ce8f3c3e2..d7eb7cf4fd5c 100644
> --- a/drivers/usb/gadget/udc/atmel_usba_udc.h
> +++ b/drivers/usb/gadget/udc/atmel_usba_udc.h
> @@ -326,7 +326,6 @@ struct usba_udc {
> const struct usba_udc_errata *errata;
> int irq;
> struct gpio_desc *vbus_pin;
> - int vbus_pin_inverted;
> int num_ep;
> int configured_ep;
> struct usba_fifo_cfg *fifo_cfg;
> --
> 2.14.1
>

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