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From: Peter Hurley <peter@hurleysoftware.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Grant Likely <grant.likely@linaro.org>,
	Rob Herring <robh+dt@kernel.org>
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
	Peter Hurley <peter@hurleysoftware.com>
Subject: [PATCH -next 02/12] serial: earlycon: Emit earlycon name in the OF table
Date: Wed,  4 Mar 2015 12:24:21 -0500	[thread overview]
Message-ID: <1425489871-22415-3-git-send-email-peter@hurleysoftware.com> (raw)
In-Reply-To: <1425489871-22415-1-git-send-email-peter@hurleysoftware.com>

The OF device name of the earlycon is never used because there is no
device; re-purpose the name field to store the earlycon name in
the OF earlycon table. Earlycon will use the table entry to
fixup the console name and index.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
---
 include/linux/serial_core.h | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 8aeec49..c523785 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -29,6 +29,7 @@
 #include <linux/tty.h>
 #include <linux/mutex.h>
 #include <linux/sysrq.h>
+#include <linux/mod_devicetable.h>
 #include <uapi/linux/serial_core.h>
 
 #ifdef CONFIG_SERIAL_CORE_CONSOLE
@@ -353,8 +354,18 @@ extern int of_setup_earlycon(unsigned long addr,
 		 = { .name  = __stringify(_name),			\
 		     .setup = func  }
 
-#define OF_EARLYCON_DECLARE(name, compat, fn)				\
-	_OF_DECLARE(earlycon, name, compat, fn, void *)
+#ifdef CONFIG_OF
+#define EARLYCON_OF_TABLE_ATTR __used __section(__earlycon_of_table)
+#else
+#define EARLYCON_OF_TABLE_ATTR __attribute__((unused))
+#endif
+
+#define OF_EARLYCON_DECLARE(_name, compat, fn)				\
+	static const struct of_device_id __of_table_##_name		\
+		EARLYCON_OF_TABLE_ATTR					\
+		 = { .name = __stringify(_name),			\
+		     .compatible = compat,				\
+		     .data = (fn == (void *)NULL) ? fn : fn  }
 
 struct uart_port *uart_get_console(struct uart_port *ports, int nr,
 				   struct console *c);
-- 
2.3.1


  parent reply	other threads:[~2015-03-04 17:24 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-04 17:24 [PATCH -next 00/12] OF earlycon cleanup Peter Hurley
2015-03-04 17:24 ` [PATCH -next 01/12] serial: earlycon: Fixup earlycon console name and index Peter Hurley
2015-03-04 17:24 ` Peter Hurley [this message]
2015-03-05 15:13   ` [PATCH -next 02/12] serial: earlycon: Emit earlycon name in the OF table Rob Herring
2015-03-06 16:05     ` Peter Hurley
2015-03-04 17:24 ` [PATCH -next 03/12] of: earlycon: Fixup earlycon console name and index Peter Hurley
2015-03-04 17:24 ` [PATCH -next 04/12] of: earlycon: Add options string handling Peter Hurley
2015-03-05 16:28   ` Rob Herring
2015-03-04 17:24 ` [PATCH -next 05/12] of: earlycon: Initialize port fields from DT properties Peter Hurley
2015-03-05 16:16   ` Rob Herring
2015-03-04 17:24 ` [PATCH -next 06/12] of: earlycon: Move address translation to of_setup_earlycon() Peter Hurley
2015-03-05 16:25   ` Rob Herring
2015-03-04 17:24 ` [PATCH -next 07/12] serial: earlycon: Common log banner for command line and DT Peter Hurley
2015-03-05 12:02   ` Geert Uytterhoeven
2015-03-05 12:24     ` Peter Hurley
2015-03-04 17:24 ` [PATCH -next 08/12] serial: earlycon: Id the earlycon "driver" in banner Peter Hurley
2015-03-04 17:24 ` [PATCH -next 09/12] of: earlycon: Allow multiple OF_EARLYCON_DECLARE() with same name Peter Hurley
2015-03-04 17:24 ` [PATCH -next 10/12] of: earlycon: Log more helpful message if earlycon not found Peter Hurley
2015-03-04 17:24 ` [PATCH -next 11/12] serial: 8250_early: Use port->regshift Peter Hurley
2015-03-04 17:24 ` [PATCH -next 12/12] serial: 8250_omap: Add omap8250 earlycon Peter Hurley
2015-03-04 17:33 ` [PATCH -next 00/12] OF earlycon cleanup Peter Hurley

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