diff options
| author | Max Krummenacher <max.krummenacher@toradex.com> | 2021-01-21 15:00:40 +0100 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2021-02-01 10:05:43 +0100 |
| commit | 322691f7b5723247651e5ae0ba3f9d5e531be4b5 (patch) | |
| tree | 88625abaf09a511cfe392a336b7c0c8b044e06eb /drivers/tty/serial/fsl_lpuart.c | |
| parent | 399758c48f7680e0e80f67a2ad49207f51cb41dd (diff) | |
tty: serial: fsl_lpuart: set rxiden in non dma casetoradex_5.4-2.1.x-imx
In the case of not using edma set the RXIDEN field. This sets the RDRF
flag even if there are received characters in the FIFO and the receiver
has been idle for the specified number of characters.
Related-to: ELB-3517
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Diffstat (limited to 'drivers/tty/serial/fsl_lpuart.c')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index f460ac06ffa5..37e727ccbd8b 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1714,7 +1714,8 @@ static void lpuart32_setup_watermark(struct lpuart_port *sport) val |= UARTFIFO_TXFE | UARTFIFO_RXFE; val |= UARTFIFO_TXFLUSH | UARTFIFO_RXFLUSH; val &= ~(UARTFIFO_RXIDEN_MASK << UARTFIFO_RXIDEN_OFF); - rxiden_cnt = sport->dma_eeop ? 0 : UARTFIFO_RXIDEN_RDRF; + rxiden_cnt = (sport->dma_eeop && sport->lpuart_dma_rx_use) ? + 0 : UARTFIFO_RXIDEN_RDRF; val |= ((rxiden_cnt & UARTFIFO_RXIDEN_MASK) << UARTFIFO_RXIDEN_OFF); lpuart32_write(&sport->port, val, UARTFIFO); |