Don't use magic literals & comments but define a real field instead for UART_IIR_FIFO_ENABLED and name also the values.
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| @@ -44,6 +44,10 @@ · 43 unmodified lines | ||
| 44 | 44 | #define UART_IIR_RX_TIMEOUT 0x0c /* OMAP RX Timeout interrupt */ |
| 45 | 45 | #define UART_IIR_XOFF 0x10 /* OMAP XOFF/Special Character */ |
| 46 | 46 | #define UART_IIR_CTS_RTS_DSR 0x20 /* OMAP CTS/RTS/DSR Change */ |
| 47 | +#define UART_IIR_FIFO_ENABLED 0xc0 /* FIFOs enabled / port type identification */ | |
| 48 | +#define UART_IIR_FIFO_ENABLED_8250 0x00 /* 8250: no FIFO */ | |
| 49 | +#define UART_IIR_FIFO_ENABLED_16550 0x80 /* 16550: (broken/unusable) FIFO */ | |
| 50 | +#define UART_IIR_FIFO_ENABLED_16550A 0xc0 /* 16550A: FIFO enabled */ | |
| 47 | 51 | |
| 48 | 52 | #define UART_FCR 2 /* Out: FIFO Control Register */ |
| 49 | 53 | #define UART_FCR_ENABLE_FIFO 0x01 /* Enable the FIFO */ |