On Mon, May 14, 2018 at 06:15:59PM +0900, Yoshihiro Shimoda wrote:
> This patch uses usb role switch API if the register suceeeded.
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda...@renesas.com>
> ---
> drivers/usb/gadget/udc/renesas_usb3.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/gadget/udc/renesas_usb3.c
> b/drivers/usb/gadget/udc/renesas_usb3.c
> index c878449..bfb5803 100644
> --- a/drivers/usb/gadget/udc/renesas_usb3.c
> +++ b/drivers/usb/gadget/udc/renesas_usb3.c
> @@ -657,7 +657,11 @@ static void _usb3_set_mode(struct renesas_usb3 *usb3,
> bool host)
>
> static void usb3_set_mode(struct renesas_usb3 *usb3, bool host)
> {
> - _usb3_set_mode(usb3, host);
> + if (usb3->role_sw)
> + usb_role_switch_set_role(usb3->role_sw, host ?
> + USB_ROLE_HOST : USB_ROLE_DEVICE);
> + else
> + _usb3_set_mode(usb3, host);
> }
>
> static void usb3_vbus_out(struct renesas_usb3 *usb3, bool enable)
> @@ -672,8 +676,8 @@ static void usb3_mode_config(struct renesas_usb3 *usb3,
> bool host, bool a_dev)
> {
> unsigned long flags;
>
> - spin_lock_irqsave(&usb3->lock, flags);
> usb3_set_mode(usb3, host);
> + spin_lock_irqsave(&usb3->lock, flags);
Hi Shimoda-san,
could you clarify why moving this lock is safe?
> usb3_vbus_out(usb3, a_dev);
> /* for A-Peripheral or forced B-device mode */
> if ((!host && a_dev) ||
> --
> 1.9.1
>
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