From 9a16c26f53f013fc94ad3c916cabd733593907d0 Mon Sep 17 00:00:00 2001 From: Christian Marangi Date: Wed, 27 Jul 2022 13:35:23 +0200 Subject: [PATCH] net: dsa: qca8k: move read_switch_id function to common code The same function to read the switch id is used by drivers based on qca8k family switch. Move them to common code to make them accessible also by other drivers. Signed-off-by: Christian Marangi Reviewed-by: Vladimir Oltean Signed-off-by: Jakub Kicinski --- drivers/net/dsa/qca/qca8k-8xxx.c | 29 ----------------------------- drivers/net/dsa/qca/qca8k-common.c | 29 +++++++++++++++++++++++++++++ drivers/net/dsa/qca/qca8k.h | 1 + 3 files changed, 30 insertions(+), 29 deletions(-) diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c index 4d6ea47a44698..1d3e7782a71f2 100644 --- a/drivers/net/dsa/qca/qca8k-8xxx.c +++ b/drivers/net/dsa/qca/qca8k-8xxx.c @@ -1876,35 +1876,6 @@ static const struct dsa_switch_ops qca8k_switch_ops = { .connect_tag_protocol = qca8k_connect_tag_protocol, }; -static int qca8k_read_switch_id(struct qca8k_priv *priv) -{ - u32 val; - u8 id; - int ret; - - if (!priv->info) - return -ENODEV; - - ret = qca8k_read(priv, QCA8K_REG_MASK_CTRL, &val); - if (ret < 0) - return -ENODEV; - - id = QCA8K_MASK_CTRL_DEVICE_ID(val); - if (id != priv->info->id) { - dev_err(priv->dev, - "Switch id detected %x but expected %x", - id, priv->info->id); - return -ENODEV; - } - - priv->switch_id = id; - - /* Save revision to communicate to the internal PHY driver */ - priv->switch_revision = QCA8K_MASK_CTRL_REV_ID(val); - - return 0; -} - static int qca8k_sw_probe(struct mdio_device *mdiodev) { diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c index c881a95441dd3..bba95613e2183 100644 --- a/drivers/net/dsa/qca/qca8k-common.c +++ b/drivers/net/dsa/qca/qca8k-common.c @@ -1179,3 +1179,32 @@ int qca8k_port_lag_leave(struct dsa_switch *ds, int port, { return qca8k_lag_refresh_portmap(ds, port, lag, true); } + +int qca8k_read_switch_id(struct qca8k_priv *priv) +{ + u32 val; + u8 id; + int ret; + + if (!priv->info) + return -ENODEV; + + ret = qca8k_read(priv, QCA8K_REG_MASK_CTRL, &val); + if (ret < 0) + return -ENODEV; + + id = QCA8K_MASK_CTRL_DEVICE_ID(val); + if (id != priv->info->id) { + dev_err(priv->dev, + "Switch id detected %x but expected %x", + id, priv->info->id); + return -ENODEV; + } + + priv->switch_id = id; + + /* Save revision to communicate to the internal PHY driver */ + priv->switch_revision = QCA8K_MASK_CTRL_REV_ID(val); + + return 0; +} diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h index e87bfee837c19..e36ecc9777f43 100644 --- a/drivers/net/dsa/qca/qca8k.h +++ b/drivers/net/dsa/qca/qca8k.h @@ -432,6 +432,7 @@ extern const struct qca8k_mib_desc ar8327_mib[]; extern const struct regmap_access_table qca8k_readable_table; int qca8k_mib_init(struct qca8k_priv *priv); void qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable); +int qca8k_read_switch_id(struct qca8k_priv *priv); /* Common read/write/rmw function */ int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val); -- 2.39.5