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f7d0a4797f
Backport commits adding support for the MT7988 built-in switch to the
mt7530 driver.
This change results in the Kconfig symbol NET_DSA_MT7530 to be extended
by NET_DSA_MT7530_MDIO (everything formally covered by NET_DSA_MT7530)
and NET_DSA_MT7530_MMIO (a new driver for the MMIO-connected built-in
switch of the MT7988 SoC).
Select NET_DSA_MT7530_MDIO for all targets previously selecting
NET_DSA_MT7530, with the exception of mediatek/filogic which also
selects NET_DSA_MT7530_MMIO.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 958fdf36e3)
156 lines
4.7 KiB
Diff
156 lines
4.7 KiB
Diff
From 37c9c0d8d0b2e24f8c9af72ecd4edd31537284d3 Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Mon, 3 Apr 2023 02:18:39 +0100
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Subject: [PATCH 11/16] net: dsa: mt7530: introduce mt7530_probe_common helper
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function
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Move commonly used parts from mt7530_probe into new mt7530_probe_common
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helper function which will be used by both, mt7530_probe and the
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to-be-introduced mt7988_probe.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/mt7530.c | 98 ++++++++++++++++++++++------------------
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1 file changed, 54 insertions(+), 44 deletions(-)
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--- a/drivers/net/dsa/mt7530.c
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+++ b/drivers/net/dsa/mt7530.c
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@@ -3135,44 +3135,21 @@ static const struct of_device_id mt7530_
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MODULE_DEVICE_TABLE(of, mt7530_of_match);
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static int
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-mt7530_probe(struct mdio_device *mdiodev)
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+mt7530_probe_common(struct mt7530_priv *priv)
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{
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- static struct regmap_config *regmap_config;
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- struct mt7530_priv *priv;
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- struct device_node *dn;
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- int ret;
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+ struct device *dev = priv->dev;
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- dn = mdiodev->dev.of_node;
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-
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- priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL);
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- if (!priv)
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- return -ENOMEM;
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-
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- priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
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+ priv->ds = devm_kzalloc(dev, sizeof(*priv->ds), GFP_KERNEL);
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if (!priv->ds)
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return -ENOMEM;
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- priv->ds->dev = &mdiodev->dev;
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+ priv->ds->dev = dev;
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priv->ds->num_ports = MT7530_NUM_PORTS;
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- /* Use medatek,mcm property to distinguish hardware type that would
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- * casues a little bit differences on power-on sequence.
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- */
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- priv->mcm = of_property_read_bool(dn, "mediatek,mcm");
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- if (priv->mcm) {
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- dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n");
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-
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- priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm");
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- if (IS_ERR(priv->rstc)) {
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- dev_err(&mdiodev->dev, "Couldn't get our reset line\n");
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- return PTR_ERR(priv->rstc);
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- }
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- }
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-
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/* Get the hardware identifier from the devicetree node.
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* We will need it for some of the clock and regulator setup.
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*/
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- priv->info = of_device_get_match_data(&mdiodev->dev);
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+ priv->info = of_device_get_match_data(dev);
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if (!priv->info)
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return -EINVAL;
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@@ -3186,23 +3163,53 @@ mt7530_probe(struct mdio_device *mdiodev
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return -EINVAL;
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priv->id = priv->info->id;
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+ priv->dev = dev;
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+ priv->ds->priv = priv;
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+ priv->ds->ops = &mt7530_switch_ops;
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+ mutex_init(&priv->reg_mutex);
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+ dev_set_drvdata(dev, priv);
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- if (priv->id == ID_MT7530) {
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- priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core");
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- if (IS_ERR(priv->core_pwr))
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- return PTR_ERR(priv->core_pwr);
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+ return 0;
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+}
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- priv->io_pwr = devm_regulator_get(&mdiodev->dev, "io");
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- if (IS_ERR(priv->io_pwr))
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- return PTR_ERR(priv->io_pwr);
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- }
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+static int
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+mt7530_probe(struct mdio_device *mdiodev)
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+{
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+ static struct regmap_config *regmap_config;
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+ struct mt7530_priv *priv;
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+ struct device_node *dn;
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+ int ret;
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+
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+ dn = mdiodev->dev.of_node;
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+
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+ priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL);
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+ if (!priv)
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+ return -ENOMEM;
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- /* Not MCM that indicates switch works as the remote standalone
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+ priv->bus = mdiodev->bus;
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+ priv->dev = &mdiodev->dev;
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+
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+ ret = mt7530_probe_common(priv);
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+ if (ret)
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+ return ret;
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+
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+ /* Use medatek,mcm property to distinguish hardware type that would
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+ * cause a little bit differences on power-on sequence.
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+ * Not MCM that indicates switch works as the remote standalone
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* integrated circuit so the GPIO pin would be used to complete
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* the reset, otherwise memory-mapped register accessing used
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* through syscon provides in the case of MCM.
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*/
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- if (!priv->mcm) {
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+ priv->mcm = of_property_read_bool(dn, "mediatek,mcm");
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+ if (priv->mcm) {
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+ dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n");
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+
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+ priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm");
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+ if (IS_ERR(priv->rstc)) {
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+ dev_err(&mdiodev->dev, "Couldn't get our reset line\n");
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+ return PTR_ERR(priv->rstc);
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+ }
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+ } else {
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priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset",
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GPIOD_OUT_LOW);
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if (IS_ERR(priv->reset)) {
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@@ -3211,12 +3218,15 @@ mt7530_probe(struct mdio_device *mdiodev
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}
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}
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- priv->bus = mdiodev->bus;
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- priv->dev = &mdiodev->dev;
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- priv->ds->priv = priv;
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- priv->ds->ops = &mt7530_switch_ops;
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- mutex_init(&priv->reg_mutex);
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- dev_set_drvdata(&mdiodev->dev, priv);
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+ if (priv->id == ID_MT7530) {
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+ priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core");
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+ if (IS_ERR(priv->core_pwr))
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+ return PTR_ERR(priv->core_pwr);
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+
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+ priv->io_pwr = devm_regulator_get(&mdiodev->dev, "io");
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+ if (IS_ERR(priv->io_pwr))
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+ return PTR_ERR(priv->io_pwr);
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+ }
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regmap_config = devm_kzalloc(&mdiodev->dev, sizeof(*regmap_config),
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GFP_KERNEL);
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