Move commonly used parts from mt7530_probe into new mt7530_probe_common
helper function which will be used by both, mt7530_probe and the
to-be-introduced mt7988_probe.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/net/dsa/mt7530.c | 86 ++++++++++++++++++++++------------------
1 file changed, 47 insertions(+), 39 deletions(-)
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 221d56cf9e710..32875762b3d96 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -3145,44 +3145,47 @@ static const struct of_device_id mt7530_of_match[] = {
MODULE_DEVICE_TABLE(of, mt7530_of_match);
static int
-mt7530_probe(struct mdio_device *mdiodev)
+mt7530_probe_common(struct mt7530_priv *priv)
{
- static struct regmap_config *regmap_config;
- struct mt7530_priv *priv;
- struct device_node *dn;
- int ret;
-
- dn = mdiodev->dev.of_node;
-
- priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
+ struct device *dev = priv->dev;
+ struct device_node *dn = dev->of_node;
- priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
+ priv->ds = devm_kzalloc(dev, sizeof(*priv->ds), GFP_KERNEL);
if (!priv->ds)
return -ENOMEM;
- priv->ds->dev = &mdiodev->dev;
+ priv->ds->dev = dev;
priv->ds->num_ports = MT7530_NUM_PORTS;
/* Use medatek,mcm property to distinguish hardware type that would
- * casues a little bit differences on power-on sequence.
+ * cause a little bit differences on power-on sequence.
+ * Note MCM that indicates switch works as the remote standalone
+ * integrated circuit so the GPIO pin would be used to complete
+ * the reset, otherwise memory-mapped register accessing used
+ * through syscon provides in the case of MCM.
*/
priv->mcm = of_property_read_bool(dn, "mediatek,mcm");
if (priv->mcm) {
- dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n");
+ dev_dbg(dev, "MT7530 adapts as multi-chip module\n");
- priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm");
+ priv->rstc = devm_reset_control_get(dev, "mcm");
if (IS_ERR(priv->rstc)) {
- dev_err(&mdiodev->dev, "Couldn't get our reset line\n");
+ dev_err(dev, "Couldn't get our reset line\n");
return PTR_ERR(priv->rstc);
}
+ } else {
+ priv->reset = devm_gpiod_get_optional(dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(priv->reset)) {
+ dev_err(dev, "Couldn't get our reset line\n");
+ return PTR_ERR(priv->reset);
+ }
}
/* Get the hardware identifier from the devicetree node.
* We will need it for some of the clock and regulator setup.
*/
- priv->info = of_device_get_match_data(&mdiodev->dev);
+ priv->info = of_device_get_match_data(dev);
if (!priv->info)
return -EINVAL;
@@ -3196,6 +3199,32 @@ mt7530_probe(struct mdio_device *mdiodev)
return -EINVAL;
priv->id = priv->info->id;
+ priv->dev = dev;
+ priv->ds->priv = priv;
+ priv->ds->ops = &mt7530_switch_ops;
+ mutex_init(&priv->reg_mutex);
+ dev_set_drvdata(dev, priv);
+
+ return 0;
+}
+
+static int
+mt7530_probe(struct mdio_device *mdiodev)
+{
+ static struct regmap_config *regmap_config;
+ struct mt7530_priv *priv;
+ int ret;
+
+ priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->bus = mdiodev->bus;
+ priv->dev = &mdiodev->dev;
+
+ ret = mt7530_probe_common(priv);
+ if (ret)
+ return ret;
if (priv->id == ID_MT7530) {
priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core");
@@ -3207,27 +3236,6 @@ mt7530_probe(struct mdio_device *mdiodev)
return PTR_ERR(priv->io_pwr);
}
- /* Not MCM that indicates switch works as the remote standalone
- * integrated circuit so the GPIO pin would be used to complete
- * the reset, otherwise memory-mapped register accessing used
- * through syscon provides in the case of MCM.
- */
- if (!priv->mcm) {
- priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset",
- GPIOD_OUT_LOW);
- if (IS_ERR(priv->reset)) {
- dev_err(&mdiodev->dev, "Couldn't get our reset line\n");
- return PTR_ERR(priv->reset);
- }
- }
-
- priv->bus = mdiodev->bus;
- priv->dev = &mdiodev->dev;
- priv->ds->priv = priv;
- priv->ds->ops = &mt7530_switch_ops;
- mutex_init(&priv->reg_mutex);
- dev_set_drvdata(&mdiodev->dev, priv);
-
regmap_config = devm_kzalloc(&mdiodev->dev, sizeof(*regmap_config),
GFP_KERNEL);
if (!regmap_config)
--
2.39.2