FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-28 12:25:31 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Staging: comedi: convert while loop to timeout in ni_mio_common.c

Browse Source 
This patch for ni_mio_common.c changes out a while loop for a timeout,
which is preferred.

Signed-off-by: Chase Southwood <chase.southwood@yahoo.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chase Southwood 2014-01-16 12:27:29 -06:00 committed by Greg Kroah-Hartman
parent 8aee843abb
commit 60738f605b
1 changed files with 11 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/staging/comedi/drivers/ni_mio_common.c
View File

@ -687,12 +687,22 @@ static void ni_clear_ai_fifo(struct comedi_device *dev)
{
const struct ni_board_struct *board = comedi_board(dev);
struct ni_private *devpriv = dev->private;
static const int timeout = 10000;
int i;
if (board->reg_type == ni_reg_6143) {
/* Flush the 6143 data FIFO */
ni_writel(0x10, AIFIFO_Control_6143); /* Flush fifo */
ni_writel(0x00, AIFIFO_Control_6143); /* Flush fifo */
while (ni_readl(AIFIFO_Status_6143) & 0x10) ; /* Wait for complete */
/* Wait for complete */
for (i = 0; i < timeout; i++) {
if (!(ni_readl(AIFIFO_Status_6143) & 0x10))
break;
udelay(1);
}
if (i == timeout) {
comedi_error(dev, "FIFO flush timeout.");
}
} else {
devpriv->stc_writew(dev, 1, ADC_FIFO_Clear);
if (board->reg_type == ni_reg_625x) {