linux-kernel - [PATCH] tty/of_serial: add missing ns16550a id

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Message-Id: <200911241022.41078.arnd@arndb.de>
Date:	Tue, 24 Nov 2009 10:22:41 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	greg@...ah.com, devicetree-discuss@...ts.ozlabs.org
Cc:	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, grant.likely@...retlab.ca,
	john.williams@...alogix.com,
	Stephen Neuendorffer <stephen.neuendorffer@...inx.com>
Subject: [PATCH] tty/of_serial: add missing ns16550a id

From: Michal Simek <monstr@...str.eu>

Many boards have a bug-free ns16550 compatible serial port, which we should
register as PORT_16550A. This introduces a new value "ns16550a" for the
compatible property of of_serial to let a firmware choose that model instead
of using the crippled PORT_16550 mode.

Reported-by: Alon Ziv <alonz@...aviz.org>
Signed-off-by: Michal Simek <monstr@...str.eu>
Signed-off-by: Arnd Bergmann <arnd@...db.de>

---
Please apply to the tty tree for 2.6.33

--- a/drivers/serial/of_serial.c
+++ b/drivers/serial/of_serial.c
@@ -161,6 +161,7 @@ static int of_platform_serial_remove(struct of_device *ofdev)
 static struct of_device_id __devinitdata of_platform_serial_table[] = {
 	{ .type = "serial", .compatible = "ns8250",   .data = (void *)PORT_8250, },
 	{ .type = "serial", .compatible = "ns16450",  .data = (void *)PORT_16450, },
+	{ .type = "serial", .compatible = "ns16550a", .data = (void *)PORT_16550A, },
 	{ .type = "serial", .compatible = "ns16550",  .data = (void *)PORT_16550, },
 	{ .type = "serial", .compatible = "ns16750",  .data = (void *)PORT_16750, },
 	{ .type = "serial", .compatible = "ns16850",  .data = (void *)PORT_16850, },
--
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