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| author | Lucas Stach <dev@lynxeye.de> | 2019-11-01 20:54:29 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-11-04 09:58:08 +0100 |
| commit | 24ff6d5a11c5f79701292c8ee9827ee724ffce4a (patch) | |
| tree | 9b0876dc6162d1dce917ece51430fef8a3030006 | |
| parent | 8685748d34c68e1b6d446bbe1a481ac257b0cb6c (diff) | |
| download | barebox-24ff6d5a11c5f79701292c8ee9827ee724ffce4a.tar.gz barebox-24ff6d5a11c5f79701292c8ee9827ee724ffce4a.tar.xz | |
serial: cadence: fix serial_flush
The TXEMPTY bit gets set as soon as the transmit FIFO gets empty, so
flushing must wait until the bit is set instead of being unset.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/serial/serial_cadence.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/serial/serial_cadence.c b/drivers/serial/serial_cadence.c index 0501c400b1..6454888e3c 100644 --- a/drivers/serial/serial_cadence.c +++ b/drivers/serial/serial_cadence.c @@ -199,7 +199,7 @@ static void cadence_serial_flush(struct console_device *cdev) struct cadence_serial_priv, cdev); while ((readl(priv->regs + CADENCE_UART_CHANNEL_STS) & - CADENCE_STS_TEMPTY) != 0) + CADENCE_STS_TEMPTY) == 0) ; } |