Helge Deller
de508ece1d
sticon/parisc: Detect default STI graphics card for console output
...
If a machine has multiple graphic cards, detect the graphic card which is used
to display firmware messages and use that one as the default graphic card for
sticon and fbcon.
On parisc machines the default graphic card used for BCH (boot console
handler, aka BIOS menu) is stored in the stable storage (equivalent to CMOS
storage on x86) or in the console path in page zero. Extract that path and
store it as default STI path for later comparism. Take care that the graphic
card can be a GSC or a PCI card which use different path strings.
Increase max string size for default_sti_path to 32 chars as the
print_pa_hwpath() function formats a hardware path using unbounded sprintf
calls for up to 6 bus converter components and 1 module component (e.g.,
255/255/...), which can produce a string up to 28 bytes long.
Signed-off-by: Helge Deller <deller@gmx.de >
Cc: stable@vger.kernel.org
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