From 5785e87a3db80a033c16e19de7741bc444f50f1a Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Wed, 6 Dec 2017 17:18:33 +0900 Subject: usb: renesas_usbhs: use PIPEnCLR.ACLRM instead of {C,Dn}FIFOCTR.BCLR in usbhs_pkt_pop() This patch uses usbhs_pipe_clear_without_sequence() instead of usbhsf_fifo_clear() because usbhsf_fifo_clear() may not clear the pipe buffer completely. This patch also changes the clearing condition from DMA only to both DMA and PIO. Signed-off-by: Yoshihiro Shimoda Signed-off-by: Felipe Balbi --- drivers/usb/renesas_usbhs/fifo.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/usb/renesas_usbhs') diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index ff96c2eabcf8..5925d111bd47 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -94,8 +94,6 @@ static struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe) return list_first_entry_or_null(&pipe->list, struct usbhs_pkt, node); } -static void usbhsf_fifo_clear(struct usbhs_pipe *pipe, - struct usbhs_fifo *fifo); static void usbhsf_fifo_unselect(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo); static struct dma_chan *usbhsf_dma_chan_get(struct usbhs_fifo *fifo, @@ -124,10 +122,11 @@ struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt) chan = usbhsf_dma_chan_get(fifo, pkt); if (chan) { dmaengine_terminate_all(chan); - usbhsf_fifo_clear(pipe, fifo); usbhsf_dma_unmap(pkt); } + usbhs_pipe_clear_without_sequence(pipe, 0, 0); + __usbhsf_pkt_del(pkt); } -- cgit v1.2.3