mirror/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

serial: 8250: Add IIR FIFOs enabled field properly

Browse Source 
Don't use magic literals & comments but define a real field instead
for UART_IIR_FIFO_ENABLED and name also the values.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221125130509.8482-5-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen
2022-11-25 15:05:07 +02:00
committed by Greg Kroah-Hartman
parent 67a9aee781
commit 3398cc4f2b
2 changed files with 11 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/uapi/linux/serial_reg.h
View File

@@ -44,6 +44,10 @@
#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_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 */
#define UART_IIR_FIFO_ENABLED_16550A 0xc0 /* 16550A: FIFO enabled */
#define UART_FCR 2 /* Out: FIFO Control Register */
#define UART_FCR_ENABLE_FIFO 0x01 /* Enable the FIFO */