commit c15a3837d2aa30e3ea41aed49d80abed355ab6bd
author David Brownell <david-b@pacbell.net> Tue May 08 00:27:35 2007 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Tue May 08 11:15:05 2007 -0700
tree 23da1c16c1e73ac5679f81c3264fc0faeb92fcf2
parent d2d9433a4c84c9e7ed78d633fdbffb35d5afda17

parport->dev driver model support

Currently a parport_driver can't get a handle on the device node for the
underlying parport (PNPACPI, PCI, etc).  That prevents correct placement of
sysfs child nodes, which can affect things like power management.

This patch adds a field to "struct parport" pointing to that device node, and
updates non-legacy port drivers to initialize that device pointer.  That field
replaces the analagous PCI-only support in parport_pc.

[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/parport/share.c

diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index fd9129e..cd66442 100644
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -365,6 +365,11 @@
 	parport_daisy_init(port);
 #endif
 
+	if (!port->dev)
+		printk(KERN_WARNING "%s: fix this legacy "
+				"no-device port driver!\n",
+				port->name);
+
 	parport_proc_register(port);
 	mutex_lock(&registration_lock);
 	spin_lock_irq(&parportlist_lock);