printk: move braille console support into separate braille.[ch] files
Create files with prototypes and static inlines for braille support. Make
braille_console functions return 1 on success.
Corrected CONFIG_A11Y_BRAILLE_CONSOLE=n _braille_console_setup
return value to NULL.
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/printk/Makefile b/kernel/printk/Makefile
index 36d306d..85405bd 100644
--- a/kernel/printk/Makefile
+++ b/kernel/printk/Makefile
@@ -1 +1,2 @@
obj-y = printk.o
+obj-$(CONFIG_A11Y_BRAILLE_CONSOLE) += braille.o