From: Jiamin Ma <jiamin.ma@amlogic.com>
Date: Thu, 11 Apr 2019 05:37:51 +0000 (+0800)
Subject: earlycon: support aml-uart as the name for earlycon [1/1]
X-Git-Tag: hardkernel-4.9.236-104~1412
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c5801145d301e38f7f59e5edf79ca588ca14e882;p=platform%2Fkernel%2Flinux-amlogic.git

earlycon: support aml-uart as the name for earlycon [1/1]

PD#SWPL-6969

Problem:
For some historical reason, aml-uart is configured as the earlycon
name in uboot, which is not recognized by 4.9 kernel

Solution:
support aml-uart as the name for earlycon

Verify:
Ampere

Change-Id: I53463ac6d27ff3e911aa675cd5d10d6cbf26ba05
Signed-off-by: Jiamin Ma <jiamin.ma@amlogic.com>
---

diff --git a/drivers/amlogic/uart/meson_uart.c b/drivers/amlogic/uart/meson_uart.c
index 20ccd01..3e1ee9f 100644
--- a/drivers/amlogic/uart/meson_uart.c
+++ b/drivers/amlogic/uart/meson_uart.c
@@ -956,6 +956,7 @@ static int __init meson_early_console_setup(struct earlycon_device *device,
 	return 0;
 }
 EARLYCON_DECLARE(aml_uart, meson_early_console_setup);
+EARLYCON_DECLARE_COMP(aml-uart, meson_early_console_setup);
 
 static struct console meson_serial_console = {
 	.name = AML_UART_DEV_NAME,
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 42e3f06..082edc7 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -375,6 +375,11 @@ extern const struct earlycon_id *__earlycon_table_end[];
 
 #define EARLYCON_DECLARE(_name, fn)	OF_EARLYCON_DECLARE(_name, "", fn)
 
+#ifdef CONFIG_AMLOGIC_MODIFY
+#define EARLYCON_DECLARE_COMP(_name, fn) \
+	_OF_EARLYCON_DECLARE(_name, "", fn, __LINE__ ## __COUNTER__)
+#endif
+
 extern int of_setup_earlycon(const struct earlycon_id *match,
 			     unsigned long node,
 			     const char *options);