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| /openbmc/linux/drivers/tty/serial/8250/ |
| H A D | 8250_fintek.c | diff c2236facaec9e4bdd3b350a6a54d29440a234a04 Tue Oct 04 03:28:01 CDT 2016 Ji-Ze Hong (Peter Hong) <hpeter@gmail.com> serial: 8250_fintek: Set maximum FIFO of F81216H
The Fintek F81216H had maximum 128Bytes FIFO, but some BIOS configurated
as normal 16Bytes FIFO. This patch will set 128Bytes FIFO and trigger
level multiplier as 4x when F81216H detected.
Default 16550A trigger level is 8Bytes. When this patch applied, the
trigger level will change to 8Byte x 4 = 32Byte. It can be reduce the RX
incoming interrupts.
Suggested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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