From: "Clément Léger" <clement.leger@bootlin.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
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>
Cc: "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,
"Clément Léger" <clement.leger@bootlin.com>
Subject: [PATCH 6/6] net: sfp: add support for fwnode
Date: Fri, 18 Mar 2022 17:00:52 +0100 [thread overview]
Message-ID: <20220318160059.328208-7-clement.leger@bootlin.com> (raw)
In-Reply-To: <20220318160059.328208-1-clement.leger@bootlin.com>
Add support to retrieve a i2c bus in sfp with a fwnode. This support
is using the fwnode API which also works with device-tree and ACPI.
For this purpose, the device-tree and ACPI code handling the i2c
adapter retrieval was factorized with the new code. This also allows
i2c devices using a software_node description to be used by sfp code.
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
---
drivers/net/phy/sfp.c | 46 +++++++++++++------------------------------
1 file changed, 14 insertions(+), 32 deletions(-)
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 4720b24ca51b..3f57b1fbf413 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -2483,7 +2483,7 @@ static void sfp_cleanup(void *data)
static int sfp_probe(struct platform_device *pdev)
{
const struct sff_data *sff;
- struct i2c_adapter *i2c;
+ struct i2c_adapter *i2c = NULL;
char *sfp_irq_name;
struct sfp *sfp;
int err, i;
@@ -2499,43 +2499,25 @@ static int sfp_probe(struct platform_device *pdev)
return err;
sff = sfp->type = &sfp_data;
+ if (dev_fwnode(&pdev->dev)) {
+ struct fwnode_handle *fwnode = dev_fwnode(&pdev->dev);
+ struct fwnode_handle *np;
- if (pdev->dev.of_node) {
- struct device_node *node = pdev->dev.of_node;
- const struct of_device_id *id;
- struct device_node *np;
-
- id = of_match_node(sfp_of_match, node);
- if (WARN_ON(!id))
- return -EINVAL;
+ if (!is_acpi_device_node(fwnode)) {
+ sff = device_get_match_data(&pdev->dev);
+ if (WARN_ON(!sff))
+ return -EINVAL;
- sff = sfp->type = id->data;
-
- np = of_parse_phandle(node, "i2c-bus", 0);
- if (!np) {
- dev_err(sfp->dev, "missing 'i2c-bus' property\n");
- return -ENODEV;
+ sfp->type = sff;
}
- i2c = of_find_i2c_adapter_by_node(np);
- of_node_put(np);
- } else if (has_acpi_companion(&pdev->dev)) {
- struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
- struct fwnode_handle *fw = acpi_fwnode_handle(adev);
- struct fwnode_reference_args args;
- struct acpi_handle *acpi_handle;
- int ret;
-
- ret = acpi_node_get_property_reference(fw, "i2c-bus", 0, &args);
- if (ret || !is_acpi_device_node(args.fwnode)) {
- dev_err(&pdev->dev, "missing 'i2c-bus' property\n");
+ np = fwnode_find_reference(fwnode, "i2c-bus", 0);
+ if (!np) {
+ dev_err(&pdev->dev, "Cannot parse i2c-bus\n");
return -ENODEV;
}
-
- acpi_handle = ACPI_HANDLE_FWNODE(args.fwnode);
- i2c = i2c_acpi_find_adapter_by_handle(acpi_handle);
- } else {
- return -EINVAL;
+ i2c = fwnode_find_i2c_adapter_by_node(np);
+ fwnode_handle_put(np);
}
if (!i2c)
--
2.34.1
next prev parent reply other threads:[~2022-03-18 16:04 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
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 ` Clément Léger [this message]
2022-03-18 16:32 ` [PATCH 6/6] net: sfp: " 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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