From c15a3837d2aa30e3ea41aed49d80abed355ab6bd Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 8 May 2007 00:27:35 -0700 Subject: 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 Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/parport.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include/linux/parport.h') diff --git a/include/linux/parport.h b/include/linux/parport.h index 80682aaa8f1..9cdd6943e01 100644 --- a/include/linux/parport.h +++ b/include/linux/parport.h @@ -279,6 +279,10 @@ struct parport { int dma; int muxport; /* which muxport (if any) this is */ int portnum; /* which physical parallel port (not mux) */ + struct device *dev; /* Physical device associated with IO/DMA. + * This may unfortulately be null if the + * port has a legacy driver. + */ struct parport *physport; /* If this is a non-default mux @@ -289,7 +293,7 @@ struct parport { following structure members are meaningless: devices, cad, muxsel, waithead, waittail, flags, pdir, - ieee1284, *_lock. + dev, ieee1284, *_lock. It this is a default mux parport, or there is no mux involved, this points to @@ -302,7 +306,7 @@ struct parport { struct pardevice *waithead; struct pardevice *waittail; - + struct list_head list; unsigned int flags; -- cgit v1.2.3