diff options
Diffstat (limited to 'drivers/tty/serial/serial-tegra.c')
| -rw-r--r-- | drivers/tty/serial/serial-tegra.c | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c index 53d7c31ce098..78a5cf65bf02 100644 --- a/drivers/tty/serial/serial-tegra.c +++ b/drivers/tty/serial/serial-tegra.c @@ -1034,6 +1034,20 @@ fail_rx_dma: return ret; } +/* + * Flush any TX data submitted for DMA and PIO. Called when the + * TX circular buffer is reset. + */ +static void tegra_uart_flush_buffer(struct uart_port *u) +{ + struct tegra_uart_port *tup = to_tegra_uport(u); + + tup->tx_bytes = 0; + if (tup->tx_dma_chan) + dmaengine_terminate_all(tup->tx_dma_chan); + return; +} + static void tegra_uart_shutdown(struct uart_port *u) { struct tegra_uart_port *tup = to_tegra_uport(u); @@ -1046,6 +1060,8 @@ static void tegra_uart_shutdown(struct uart_port *u) tegra_uart_dma_channel_free(tup, true); tegra_uart_dma_channel_free(tup, false); free_irq(u->irq, tup); + + tegra_uart_flush_buffer(u); } static void tegra_uart_enable_ms(struct uart_port *u) @@ -1174,20 +1190,6 @@ static void tegra_uart_set_termios(struct uart_port *u, return; } -/* - * Flush any TX data submitted for DMA and PIO. Called when the - * TX circular buffer is reset. - */ -static void tegra_uart_flush_buffer(struct uart_port *u) -{ - struct tegra_uart_port *tup = to_tegra_uport(u); - - tup->tx_bytes = 0; - if (tup->tx_dma_chan) - dmaengine_terminate_all(tup->tx_dma_chan); - return; -} - static const char *tegra_uart_type(struct uart_port *u) { return TEGRA_UART_TYPE; |
