From 1cb5e9ee033f89d3241013cfff8300cc0195a62d Mon Sep 17 00:00:00 2001 From: Yuan-Hsin Chen Date: Tue, 2 Apr 2013 11:18:08 +0000 Subject: [PATCH] usb: gadget: fusb300_udc: bug fix of not doing idma reset for each time Enter IDMA_RESET only when the controller has been reset or the device has been plugged in to or out from a host. In IDMA_RESET, we should disable the corresponding PRD interrupt. Also there is a redundant space eliminated. fusb300_udc driver is tested on FARADAY platform a369 with FUSB300 FPGA v1.8 Signed-off-by: Yuan-Hsin Chen Signed-off-by: Felipe Balbi --- drivers/usb/gadget/fusb300_udc.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index db0d2917987a..cec8871b77f9 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -930,12 +930,15 @@ static void fusb300_wait_idma_finished(struct fusb300_ep *ep) fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGR0, FUSB300_IGR0_EPn_PRD_INT(ep->epnum)); + return; + IDMA_RESET: - fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGER0, - FUSB300_IGER0_EEPn_PRD_INT(ep->epnum)); + reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGER0); + reg &= ~FUSB300_IGER0_EEPn_PRD_INT(ep->epnum); + iowrite32(reg, ep->fusb300->reg + FUSB300_OFFSET_IGER0); } -static void fusb300_set_idma(struct fusb300_ep *ep, +static void fusb300_set_idma(struct fusb300_ep *ep, struct fusb300_request *req) { int ret; -- 2.20.1