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| author | Ingo Molnar <mingo@kernel.org> | 2017-04-03 16:36:32 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-04-03 16:36:32 +0200 |
| commit | 7f75540ff2ca84dbac26cf9deeb620cbf5646f5e (patch) | |
| tree | 1eb54748074d3a91f3dd70fb5d4b23bf713f0bd5 /drivers/tty/serial/atmel_serial.c | |
| parent | x86/mm/numa: Remove numa_nodemask_from_meminfo() (diff) | |
| parent | Linux 4.11-rc5 (diff) | |
| download | linux-7f75540ff2ca84dbac26cf9deeb620cbf5646f5e.tar.xz linux-7f75540ff2ca84dbac26cf9deeb620cbf5646f5e.zip | |
Merge tag 'v4.11-rc5' into x86/mm, to refresh the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/tty/serial/atmel_serial.c')
| -rw-r--r-- | drivers/tty/serial/atmel_serial.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index dcebb28ffbc4..1f50a83ef958 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1951,6 +1951,11 @@ static void atmel_flush_buffer(struct uart_port *port) atmel_uart_writel(port, ATMEL_PDC_TCR, 0); atmel_port->pdc_tx.ofs = 0; } + /* + * in uart_flush_buffer(), the xmit circular buffer has just + * been cleared, so we have to reset tx_len accordingly. + */ + atmel_port->tx_len = 0; } /* @@ -2483,6 +2488,9 @@ static void atmel_console_write(struct console *co, const char *s, u_int count) pdc_tx = atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN; atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); + /* Make sure that tx path is actually able to send characters */ + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN); + uart_console_write(port, s, count, atmel_console_putchar); /* |