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earlycon: Use common framework for earlycon declarations

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Use a single common table of struct earlycon_id for both command line
and devicetree. Re-define OF_EARLYCON_DECLARE() macro to instance a
unique earlycon declaration (the declaration is only guaranteed to be
unique within a compilation unit; separate compilation units must still
use unique earlycon names).

The semantics of OF_EARLYCON_DECLARE() is different; it declares an
earlycon which can matched either on the command line or by devicetree.
EARLYCON_DECLARE() is semantically unchanged; it declares an earlycon
which is matched by command line only. Remove redundant instances of
EARLYCON_DECLARE().

This enables all earlycons to properly initialize struct console
with the appropriate name and index, which improves diagnostics and
enables direct earlycon-to-console handoff.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley
2016-01-16 15:23:39 -08:00
committed by Greg Kroah-Hartman
parent 8477614d9f
commit 2eaa790989
9 changed files with 23 additions and 41 deletions
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6
drivers/tty/serial/samsung.c
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@@ -2451,7 +2451,6 @@ static int __init s3c2410_early_console_setup(struct earlycon_device *device,
}
OF_EARLYCON_DECLARE(s3c2410, "samsung,s3c2410-uart",
s3c2410_early_console_setup);
EARLYCON_DECLARE(s3c2410, s3c2410_early_console_setup);
/* S3C2412, S3C2440, S3C64xx */
static struct samsung_early_console_data s3c2440_early_console_data = {
@@ -2470,9 +2469,6 @@ OF_EARLYCON_DECLARE(s3c2440, "samsung,s3c2440-uart",
s3c2440_early_console_setup);
OF_EARLYCON_DECLARE(s3c6400, "samsung,s3c6400-uart",
s3c2440_early_console_setup);
EARLYCON_DECLARE(s3c2412, s3c2440_early_console_setup);
EARLYCON_DECLARE(s3c2440, s3c2440_early_console_setup);
EARLYCON_DECLARE(s3c6400, s3c2440_early_console_setup);
/* S5PV210, EXYNOS */
static struct samsung_early_console_data s5pv210_early_console_data = {
@@ -2489,8 +2485,6 @@ OF_EARLYCON_DECLARE(s5pv210, "samsung,s5pv210-uart",
s5pv210_early_console_setup);
OF_EARLYCON_DECLARE(exynos4210, "samsung,exynos4210-uart",
s5pv210_early_console_setup);
EARLYCON_DECLARE(s5pv210, s5pv210_early_console_setup);
EARLYCON_DECLARE(exynos4210, s5pv210_early_console_setup);
#endif
MODULE_ALIAS("platform:samsung-uart");