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

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Date:	Wed, 23 Feb 2011 12:29:03 -0600
From:	Rob Herring <robherring2@...il.com>
To:	Grant Likely <grant.likely@...retlab.ca>
CC:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	devicetree-discuss@...ts.ozlabs.org, sfr@...b.auug.org.au,
	linux-kernel@...r.kernel.org, davem@...emloft.net,
	sparclinux@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [RFC PATCH 02/15] dt: add a match table pointer to struct device

Grant,

On 02/22/2011 10:33 PM, Grant Likely wrote:
> 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<grant.likely@...retlab.ca>
> ---
>   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.

Rob
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