From bd6bce004d78b867ba0c6d3712f1c5b50398af9a Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Tue, 10 Apr 2018 14:38:54 +0900 Subject: usb: gadget: udc: renesas_usb3: disable the controller's irqs for reconnecting This patch fixes an issue that reconnection is possible to fail because unexpected state handling happens by the irqs. To fix the issue, the driver disables the controller's irqs when disconnected. Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller") Cc: # v4.5+ Reviewed-by: Simon Horman Signed-off-by: Yoshihiro Shimoda Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/renesas_usb3.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/usb/gadget') diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index 5d5a5d9e3669..2bb2cca5ca82 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -623,6 +623,13 @@ static void usb3_disconnect(struct renesas_usb3 *usb3) usb3_usb2_pullup(usb3, 0); usb3_clear_bit(usb3, USB30_CON_B3_CONNECT, USB3_USB30_CON); usb3_reset_epc(usb3); + usb3_disable_irq_1(usb3, USB_INT_1_B2_RSUM | USB_INT_1_B3_PLLWKUP | + USB_INT_1_B3_LUPSUCS | USB_INT_1_B3_DISABLE | + USB_INT_1_SPEED | USB_INT_1_B3_WRMRST | + USB_INT_1_B3_HOTRST | USB_INT_1_B2_SPND | + USB_INT_1_B2_L1SPND | USB_INT_1_B2_USBRST); + usb3_clear_bit(usb3, USB_COM_CON_SPD_MODE, USB3_USB_COM_CON); + usb3_init_epc_registers(usb3); if (usb3->driver) usb3->driver->disconnect(&usb3->gadget); -- cgit v1.2.3