tree 1d93231503b6d89dadf8480a92210e4580eccfbb
parent 3dada5a1a89f336f4b751548117949cf255cfcf6
author Simon Glass <sjg@chromium.org> 1593745933 -0600
committer Bin Meng <bmeng.cn@gmail.com> 1594269204 +0800

console: Add a way to output to serial only

In the video drivers it is useful to print errors while debugging but
doing so risks an infinite loop as the debugging info itself may go
through the video drivers.

Add a new console function that prints information only to the serial
device, thus making it safe for use in debugging.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>