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path: root/drivers/tty/serial/serial-tegra.c
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Diffstat (limited to 'drivers/tty/serial/serial-tegra.c')
-rw-r--r--drivers/tty/serial/serial-tegra.c36
1 files changed, 19 insertions, 17 deletions
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index 53d7c31ce098..48e6e41636b2 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -319,16 +319,16 @@ static char tegra_uart_decode_rx_error(struct tegra_uart_port *tup,
if (unlikely(lsr & TEGRA_UART_LSR_ANY)) {
if (lsr & UART_LSR_OE) {
/* Overrrun error */
- flag |= TTY_OVERRUN;
+ flag = TTY_OVERRUN;
tup->uport.icount.overrun++;
dev_err(tup->uport.dev, "Got overrun errors\n");
} else if (lsr & UART_LSR_PE) {
/* Parity error */
- flag |= TTY_PARITY;
+ flag = TTY_PARITY;
tup->uport.icount.parity++;
dev_err(tup->uport.dev, "Got Parity errors\n");
} else if (lsr & UART_LSR_FE) {
- flag |= TTY_FRAME;
+ flag = TTY_FRAME;
tup->uport.icount.frame++;
dev_err(tup->uport.dev, "Got frame errors\n");
} else if (lsr & UART_LSR_BI) {
@@ -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;