[U-Boot] [PATCH v4 2/3] usb:gadget:composite: Support for composite at gadget.h

[Marek Vasut <marex@denx.de>]

Dear Lukasz Majewski,

> Add device data pointer to the USB gadget's device struct.
> Wrapper for extracting usb_gadget from Linux's usb device
> 
> Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
> Cc: Marek Vasut <marex@denx.de>

Acked-by: Marek Vasut <marex@denx.de>
> 
> ---
>  include/linux/usb/gadget.h |    6 ++++++
>  1 files changed, 6 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> index 275cb5f..eba865e 100644
> --- a/include/linux/usb/gadget.h
> +++ b/include/linux/usb/gadget.h
> @@ -411,6 +411,7 @@ struct usb_gadget_ops {
> 
>  struct device {
>  	void		*driver_data;	/* data private to the driver */
> +	void            *device_data;   /* data private to the device */

Can't device_data be wrapped into driver_data? I guess not ...

>  };
> 
>  /**
> @@ -481,6 +482,11 @@ static inline void *get_gadget_data(struct usb_gadget
> *gadget) return gadget->dev.driver_data;
>  }
> 
> +static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev)
> +{
> +	return container_of(dev, struct usb_gadget, dev);
> +}
> +
>  /* iterates the non-control endpoints; 'tmp' is a struct usb_ep pointer */
>  #define gadget_for_each_ep(tmp, gadget) \
>  	list_for_each_entry(tmp, &(gadget)->ep_list, ep_list)

Best regards,
Marek Vasut