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usb: renesas_usbhs: fix the sequence in xfer_work()

This patch fixes the setup sequence in xfer_work(). Otherwise,
sometimes a usb transaction will get stuck.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Yoshihiro Shimoda 10 年之前
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共有 1 个文件被更改,包括 2 次插入2 次删除
  1. 2 2
      drivers/usb/renesas_usbhs/fifo.c

+ 2 - 2
drivers/usb/renesas_usbhs/fifo.c

@@ -822,10 +822,10 @@ static void xfer_work(struct work_struct *work)
 		fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero);
 		fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero);
 
 
 	usbhs_pipe_running(pipe, 1);
 	usbhs_pipe_running(pipe, 1);
-	usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
-	usbhs_pipe_enable(pipe);
 	usbhsf_dma_start(pipe, fifo);
 	usbhsf_dma_start(pipe, fifo);
+	usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
 	dma_async_issue_pending(chan);
 	dma_async_issue_pending(chan);
+	usbhs_pipe_enable(pipe);
 }
 }
 
 
 /*
 /*