Thread (2 messages) flat view 2 messages, 2 authors, 2012-09-26
DORMANTno replies

[PATCH] RFC: serial: pl011: allow very high baudrates

From: Linus Walleij <hidden>
Date: 2012-09-26 08:03:31
Also in: linux-serial

On Fri, Sep 21, 2012 at 7:59 PM, Linus Walleij
[off-list ref] wrote:
From: Linus Walleij <redacted>

The ST Microelectronics variant of the PL011 is capable of supporting
very high non-standard baud rates, even above 4 Mbps. Mostly this
works, but when we try to use 4050000 baud, the code in
tty_termios_encode_baud_rate(), which is called from
uart_get_baud_rate() will do some fuzzy matching and "snap" the
baudrate to 4000000 baud, which happens to be in the baud_table[].
So I've found the right solution to this problem, Greg ignore
this patch.

Yours,
Linus Walleij
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