diff options
Diffstat (limited to 'drivers/usb/renesas_usbhs')
| -rw-r--r-- | drivers/usb/renesas_usbhs/fifo.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index 2d24ef3076ef..ff96c2eabcf8 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -256,15 +256,9 @@ 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 +272,8 @@ 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); |