From: "Clément Léger" <clement.leger@bootlin.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Daniel Scally <djrscally@gmail.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"'Rafael J . Wysocki '" <rafael@kernel.org>,
Wolfram Sang <wsa@kernel.org>, Peter Rosin <peda@axentia.se>,
Russell King <linux@armlinux.org.uk>,
Andrew Lunn <andrew@lunn.ch>,
Heiner Kallweit <hkallweit1@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Hans de Goede <hdegoede@redhat.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Allan Nielsen <allan.nielsen@microchip.com>,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-i2c@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH 2/6] i2c: fwnode: add fwnode_find_i2c_adapter_by_node()
Date: Fri, 18 Mar 2022 17:54:29 +0100 [thread overview]
Message-ID: <20220318175402.1e62503d@fixe.home> (raw)
In-Reply-To: <YjSzc/Eek8NvqEN6@smile.fi.intel.com>
Le Fri, 18 Mar 2022 18:29:39 +0200,
Andy Shevchenko <andriy.shevchenko@linux.intel.com> a écrit :
> On Fri, Mar 18, 2022 at 05:00:48PM +0100, Clément Léger wrote:
> > Add fwnode_find_i2c_adapter_by_node() which allows to retrieve a i2c
> > adapter using a fwnode. Since dev_fwnode() uses the fwnode provided by
> > the of_node member of the device, this will also work for devices were
> > the of_node has been set and not the fwnode field.
>
> > + /* For ACPI device node, we do not want to match the parent */
>
> Why?
> Neither commit message nor this comment does not answer to this question.
>
Yes you are right. This is done to keep the existing behavior that is
applied by i2c_acpi_find_adapter_by_handle() which only checks the
device node and not the parent one. Using the same behavior than for DT
would add some unwanted behavior in I2C device lookup for ACPI.
--
Clément Léger,
Embedded Linux and Kernel engineer at Bootlin
https://bootlin.com
next prev parent reply other threads:[~2022-03-18 16:55 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-18 16:00 [PATCH 0/6] introduce fwnode in the I2C subsystem Clément Léger
2022-03-18 16:00 ` [PATCH 1/6] property: add fwnode_property_read_string_index() Clément Léger
2022-03-18 16:26 ` Andy Shevchenko
2022-03-18 16:49 ` Clément Léger
2022-03-18 18:09 ` Andy Shevchenko
2022-03-21 7:49 ` Clément Léger
2022-03-21 10:31 ` Andy Shevchenko
2022-03-21 10:33 ` Clément Léger
2022-03-18 16:00 ` [PATCH 2/6] i2c: fwnode: add fwnode_find_i2c_adapter_by_node() Clément Léger
2022-03-18 16:29 ` Andy Shevchenko
2022-03-18 16:54 ` Clément Léger [this message]
2022-03-18 16:00 ` [PATCH 3/6] i2c: of: use fwnode_get_i2c_adapter_by_node() Clément Léger
2022-03-18 16:00 ` [PATCH 4/6] i2c: mux: pinctrl: remove CONFIG_OF dependency and use fwnode API Clément Léger
2022-03-18 16:28 ` Andy Shevchenko
2022-03-18 16:56 ` Clément Léger
2022-03-18 18:11 ` Andy Shevchenko
2022-03-18 16:00 ` [PATCH 5/6] i2c: mux: add support for fwnode Clément Léger
2022-03-18 16:00 ` [PATCH 6/6] net: sfp: " Clément Léger
2022-03-18 16:32 ` Andy Shevchenko
2022-03-18 16:58 ` Clément Léger
2022-03-18 16:00 ` [PATCH 0/6] introduce fwnode in the I2C subsystem Clément Léger
2022-03-18 16:00 ` [PATCH 1/6] property: add fwnode_property_read_string_index() Clément Léger
2022-03-18 16:00 ` [PATCH 2/6] i2c: fwnode: add fwnode_find_i2c_adapter_by_node() Clément Léger
2022-03-18 16:00 ` [PATCH 3/6] i2c: of: use fwnode_get_i2c_adapter_by_node() Clément Léger
2022-03-18 16:00 ` [PATCH 4/6] i2c: mux: pinctrl: remove CONFIG_OF dependency and use fwnode API Clément Léger
2022-03-18 16:00 ` [PATCH 5/6] i2c: mux: add support for fwnode Clément Léger
2022-03-18 16:00 ` [PATCH 6/6] net: sfp: " Clément Léger
2022-03-18 16:24 ` [PATCH 0/6] introduce fwnode in the I2C subsystem Andy Shevchenko
2022-03-18 16:59 ` Clément Léger
2022-03-18 17:02 ` Jakub Kicinski
2022-03-21 10:56 ` Clément Léger
2022-03-21 18:36 ` Jakub Kicinski
2022-03-22 7:52 ` Clément Léger
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