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| author | AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> | 2022-04-27 15:23:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-05 22:59:10 +0200 |
| commit | e1bfdbc7daca171c74a577b3dd0b36d76bb0ffcc (patch) | |
| tree | 8c16d9e26b5628597176828fc262ac6e6e0f2c56 /drivers/tty | |
| parent | 6f81fdded0d024c7d4084d434764f30bca1cd6b1 (diff) | |
| download | linux-e1bfdbc7daca171c74a577b3dd0b36d76bb0ffcc.tar.bz2 | |
serial: 8250_mtk: Fix register address for XON/XOFF character
The XON1/XOFF1 character registers are at offset 0xa0 and 0xa8
respectively, so we cannot use the definition in serial_port.h.
Fixes: bdbd0a7f8f03 ("serial: 8250-mtk: modify baudrate setting")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220427132328.228297-4-angelogioacchino.delregno@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/8250/8250_mtk.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c index 28e36459642c..21053db93ff1 100644 --- a/drivers/tty/serial/8250/8250_mtk.c +++ b/drivers/tty/serial/8250/8250_mtk.c @@ -57,6 +57,9 @@ #define MTK_UART_FEATURE_SEL 39 /* Feature Selection register */ #define MTK_UART_FEAT_NEWRMAP BIT(0) /* Use new register map */ +#define MTK_UART_XON1 40 /* I/O: Xon character 1 */ +#define MTK_UART_XOFF1 42 /* I/O: Xoff character 1 */ + #ifdef CONFIG_SERIAL_8250_DMA enum dma_rx_status { DMA_RX_START = 0, @@ -278,8 +281,8 @@ static void mtk8250_set_flow_ctrl(struct uart_8250_port *up, int mode) (serial_in(up, MTK_UART_EFR) & (~(MTK_UART_EFR_HW_FC | MTK_UART_EFR_SW_FC_MASK)))); - serial_out(up, UART_XON1, START_CHAR(port->state->port.tty)); - serial_out(up, UART_XOFF1, STOP_CHAR(port->state->port.tty)); + serial_out(up, MTK_UART_XON1, START_CHAR(port->state->port.tty)); + serial_out(up, MTK_UART_XOFF1, STOP_CHAR(port->state->port.tty)); serial_out(up, UART_LCR, lcr); mtk8250_disable_intrs(up, MTK_UART_IER_CTSI|MTK_UART_IER_RTSI); mtk8250_enable_intrs(up, MTK_UART_IER_XOFFI); |