[PATCH] Revert "tty: serial: pl011: add ttyAMA for matching pl011 console"

From: Mark Salter
Date: Thu Mar 16 2017 - 12:52:00 EST


This reverts commit aea9a80ba98a0c9b4de88850260e9fbdcc98360b.

It completely breaks PL011 SPCR support (a console=ttyAMA0 is
required to get a console even with a valid SPCR table).

Aleksey Makarov also noticed this:

https://lkml.org/lkml/2017/3/1/324

and he is working on a more generalized patch to fix the original
"double printing" problem which this reverted patch was trying to
fix.

https://lkml.org/lkml/2017/3/15/223

So, let's revert the broken patch and live with the double printing
until Aleksey's patch gets upstream.

Signed-off-by: Mark Salter <msalter@xxxxxxxxxx>
---
drivers/tty/serial/amba-pl011.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 8789ea4..a81631f 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2373,9 +2373,8 @@ static int __init pl011_console_match(struct console *co, char *name, int idx,
if (strcmp(name, "qdf2400_e44") == 0) {
pr_info_once("UART: Working around QDF2400 SoC erratum 44");
qdf2400_e44_present = true;
- } else if (strcmp(name, "pl011") != 0 || strcmp(name, "ttyAMA") != 0) {
+ } else if (strcmp(name, "pl011") != 0)
return -ENODEV;
- }

if (uart_parse_earlycon(options, &iotype, &addr, &options))
return -ENODEV;
--
2.9.3