diff options
| author | Fugang Duan <fugang.duan@nxp.com> | 2017-06-06 18:44:16 +0800 |
|---|---|---|
| committer | Fugang Duan <fugang.duan@nxp.com> | 2017-07-25 19:43:35 +0800 |
| commit | 4334e587722ac8a6c9c49f72d307f514db5e2f81 (patch) | |
| tree | 1dc3d2b7ba810699f9e430e43535a9c8e9c4e725 /drivers | |
| parent | b30a009e7e5f3d192a6986296740be5da249f78d (diff) | |
MLK-15031-07 tty: serial: fsl_lpuart: add port.icount for DMA rx path
Add port.icount to stat. the DMA RX received count.
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
(cherry picked from commit: 9580def59011d50312cd722eddaf681388064230)
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 0099b728e4de..b1357ac800a8 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -804,10 +804,9 @@ static void lpuart_copy_rx_to_tty(struct lpuart_port *sport, copied = tty_insert_flip_string(tty, ((unsigned char *)(sport->dma_rx_buf_virt)), count); - if (copied != count) { - WARN_ON(1); - dev_err(sport->port.dev, "RxData copy to tty layer failed\n"); - } + if (copied != count) + sport->port.icount.buf_overrun += count - copied; + sport->port.icount.rx += copied; } static void lpuart_dma_stop(struct lpuart_port *sport) |