tree e37b812f767e4b4c53668e07f98dd1393d5d6415
parent 2d1d1b1380ceb1a42ea93768734f369fbfdfcf8f
author Geoff Levand <geoff@infradead.org> 1673804182 -0800
committer Geoff Levand <geoff@infradead.org> 1687785267 -0500

hvc_console: Allow backends to set I/O buffer size

To allow HVC backends to set the I/O buffer sizes to values that are most
efficient for the backend, change the macro definitions where the buffer sizes
are set to be conditional on whether or not the macros are already defined.
Also, rename the macros from N_OUTBUF to HVC_N_OUBUF and from N_INBUF to
HVC_N_INBUF.

Typical usage in the backend source file would be:

  #define HVC_N_OUTBUF 32
  #define HVC_N_INBUF 32
  #include "hvc_console.h"

Signed-off-by: Geoff Levand <geoff@infradead.org>