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| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-11-25 16:05:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-19 17:01:20 +0300 |
| commit | afd216ca17b1fd24f6b73a1490752c22ab42598c (patch) | |
| tree | 838c3b2b84b9700b87eea7109c82b725c446d93c /include/uapi/linux/serial_reg.h | |
| parent | 3398cc4f2b1592148a2ebabc5a2df3e303d4e77c (diff) | |
| download | linux-afd216ca17b1fd24f6b73a1490752c22ab42598c.tar.xz | |
serial: 8250: Define IIR 64 byte bit & cleanup related code
16750 indicates 64 bytes FIFO with a IIR bit. Add define for it and
make related code more obvious.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221125130509.8482-6-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/serial_reg.h')
| -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 19aef5b0b049..08b3527e1b93 100644 --- a/include/uapi/linux/serial_reg.h +++ b/include/uapi/linux/serial_reg.h @@ -44,6 +44,7 @@ #define UART_IIR_RX_TIMEOUT 0x0c /* OMAP RX Timeout interrupt */ #define UART_IIR_XOFF 0x10 /* OMAP XOFF/Special Character */ #define UART_IIR_CTS_RTS_DSR 0x20 /* OMAP CTS/RTS/DSR Change */ +#define UART_IIR_64BYTE_FIFO 0x20 /* 16750 64 bytes FIFO */ #define UART_IIR_FIFO_ENABLED 0xc0 /* FIFOs enabled / port type identification */ #define UART_IIR_FIFO_ENABLED_8250 0x00 /* 8250: no FIFO */ #define UART_IIR_FIFO_ENABLED_16550 0x80 /* 16550: (broken/unusable) FIFO */ |