Re: [RFC PATCH 02/15] dt: add a match table pointer to struct device

On Wed, Feb 23, 2011 at 12:29:03PM -0600, Rob Herring wrote:

Grant,

On 02/22/2011 10:33 PM, Grant Likely wrote:

quoted

Add a new .of_match field to struct device which points at the
matching device driver .of_match_table entry when a device is probed
via the device tree

Signed-off-by: Grant Likely<redacted>
---
 include/linux/device.h    |    1 +
 include/linux/of_device.h |    5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/device.h b/include/linux/device.h
index ca5d252..8d8e267 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h

@@ -441,6 +441,7 @@ struct device {
 	struct dev_archdata	archdata;

 	struct device_node	*of_node; /* associated device tree node */
+	const struct of_device_id *of_match; /* matching of_device_id from driver */

Couldn't of_match/of_match_table be merged into the platform dev/drv
id_entry/id_table. Handling MODALIAS for a driver that does both OF
style and normal platform device matching may be a problem though.

.of_match & .of_match_table works on all devices, not just
platform devices.  It allows the common library of device tree support
routines to be used with any bus type.

g.