diff options
| author | David Brownell <david-b@pacbell.net> | 2007-05-08 00:27:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:15:05 -0700 |
| commit | c15a3837d2aa30e3ea41aed49d80abed355ab6bd (patch) | |
| tree | 23da1c16c1e73ac5679f81c3264fc0faeb92fcf2 /include/linux/parport.h | |
| parent | d2d9433a4c84c9e7ed78d633fdbffb35d5afda17 (diff) | |
| download | lwn-c15a3837d2aa30e3ea41aed49d80abed355ab6bd.tar.gz lwn-c15a3837d2aa30e3ea41aed49d80abed355ab6bd.zip | |
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>
Diffstat (limited to 'include/linux/parport.h')
| -rw-r--r-- | include/linux/parport.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/parport.h b/include/linux/parport.h index 80682aaa8f18..9cdd6943e01b 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; |