diff options
Diffstat (limited to 'drivers/usb/renesas_usbhs/fifo.c')
| -rw-r--r-- | drivers/usb/renesas_usbhs/fifo.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index 2d24ef3076ef..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); } @@ -256,15 +255,9 @@ static void usbhsf_send_terminator(struct usbhs_pipe *pipe, static int usbhsf_fifo_barrier(struct usbhs_priv *priv, struct usbhs_fifo *fifo) { - int timeout = 1024; - - do { - /* The FIFO port is accessible */ - if (usbhs_read(priv, fifo->ctr) & FRDY) - return 0; - - udelay(10); - } while (timeout--); + /* The FIFO port is accessible */ + if (usbhs_read(priv, fifo->ctr) & FRDY) + return 0; return -EBUSY; } @@ -278,8 +271,8 @@ static void usbhsf_fifo_clear(struct usbhs_pipe *pipe, if (!usbhs_pipe_is_dcp(pipe)) { /* * This driver checks the pipe condition first to avoid -EBUSY - * from usbhsf_fifo_barrier() with about 10 msec delay in - * the interrupt handler if the pipe is RX direction and empty. + * from usbhsf_fifo_barrier() if the pipe is RX direction and + * empty. */ if (usbhs_pipe_is_dir_in(pipe)) ret = usbhs_pipe_is_accessible(pipe); |