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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2018-04-12 14:41:43 -0700 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-04-16 09:58:09 +0200 |
| commit | 46b940ddf837aa118bd514fa35e7ca6e7a5339a3 (patch) | |
| tree | 045bcd0e2ade78c4fcc07bdaa9d0b2e361b46cd4 /drivers/serial | |
| parent | 567050a8c516d88e0047ba30c12d36d02ec89bc1 (diff) | |
| download | barebox-46b940ddf837aa118bd514fa35e7ca6e7a5339a3.tar.gz barebox-46b940ddf837aa118bd514fa35e7ca6e7a5339a3.tar.xz | |
serial/lpuart: Do not enable UART FIFO
Using FIFO in LPUART results in subtle serial input draining issues
which are quite difficult to reproduce and troubleshoot. Since the
change offered only moderate performance gain revert the code to
operate in no-FIFO mode to avoid FIFO-related problems alltogether.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_lpuart.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index 52fb6d39c0..8f87f7b9cb 100644 --- a/drivers/serial/serial_lpuart.c +++ b/drivers/serial/serial_lpuart.c @@ -170,9 +170,7 @@ static int lpuart_serial_probe(struct device_d *dev) cdev->linux_console_name = "ttyLP"; - lpuart_setup_with_fifo(lpuart->base, - clk_get_rate(lpuart->clk), - 15); + lpuart_setup(lpuart->base, clk_get_rate(lpuart->clk)); ret = console_register(cdev); if (!ret) { |