diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2023-09-11 17:43:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-09-18 12:14:42 +0300 |
| commit | 2ff477b78250186e611e008320e1de20107e9617 (patch) | |
| tree | c02aef108be20fcfe3b61b75b1d163517229127d /include | |
| parent | d81ffb87aaa75f842cd7aa57091810353755b3e6 (diff) | |
| download | linux-2ff477b78250186e611e008320e1de20107e9617.tar.xz | |
serial: 8250_port: Introduce UART_IIR_FIFO_ENABLED_16750
The UART_IIR_64BYTE_FIFO is always being used in conjunction with
UART_IIR_FIFO_ENABLED. Introduce a joined UART_IIR_FIFO_ENABLED_16750
definition and use it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230911144308.4169752-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/serial_reg.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/serial_reg.h b/include/uapi/linux/serial_reg.h index 08b3527e1b93..9c987b04e2d0 100644 --- a/include/uapi/linux/serial_reg.h +++ b/include/uapi/linux/serial_reg.h @@ -49,6 +49,7 @@ #define UART_IIR_FIFO_ENABLED_8250 0x00 /* 8250: no FIFO */ #define UART_IIR_FIFO_ENABLED_16550 0x80 /* 16550: (broken/unusable) FIFO */ #define UART_IIR_FIFO_ENABLED_16550A 0xc0 /* 16550A: FIFO enabled */ +#define UART_IIR_FIFO_ENABLED_16750 0xe0 /* 16750: 64 bytes FIFO enabled */ #define UART_FCR 2 /* Out: FIFO Control Register */ #define UART_FCR_ENABLE_FIFO 0x01 /* Enable the FIFO */ |