linux-kernel - Re: [RFC 01/10] property: add fwnode_match

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Message-ID: <20220222091447.4afa940a@fixe.home>
Date:   Tue, 22 Feb 2022 09:14:47 +0100
From:   Clément Léger <clement.leger@...tlin.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Daniel Scally <djrscally@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Wolfram Sang <wsa@...nel.org>, Peter Rosin <peda@...ntia.se>,
        Russell King <linux@...linux.org.uk>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, linux-i2c@...r.kernel.org,
        netdev@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: Re: [RFC 01/10] property: add fwnode_match_node()

Le Mon, 21 Feb 2022 19:44:52 +0200,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com> a écrit :

> On Mon, Feb 21, 2022 at 05:26:43PM +0100, Clément Léger wrote:
> > Add a function equivalent to of_match_node() which is usable for
> > fwnode support. Matching is based on the compatible property and it
> > returns the best matches for the node according to the compatible
> > list ordering.  
> 
> Not sure I understand the purpose of this API.
> We have device_get_match_data(), maybe you want similar for fwnode?
> 

Hi Andy,

Actually device_get_match_data() is calling the .device_get_match_data
callback of the dev fwnode. This function is meant to be used by the
next patch (fwnode_get_match_data()) to be used as a generic fwnode
operation and thus be usable with software_node.

-- 
Clément Léger,
Embedded Linux and Kernel engineer at Bootlin
https://bootlin.com