linux-kernel - [net-next PATCH v2 4/9] net: dsa: qca8k: move regmap init in probe and set it mandatory

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Date:   Mon, 22 Nov 2021 02:03:08 +0100
From:   Ansuel Smith <ansuelsmth@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Ansuel Smith <ansuelsmth@...il.com>
Subject: [net-next PATCH v2 4/9] net: dsa: qca8k: move regmap init in probe and set it mandatory

In preparation for regmap conversion, move regmap init in the probe
function and make it mandatory as any read/write/rmw operation will be
converted to regmap API.

Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
---
 drivers/net/dsa/qca8k.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index 321d11dfcc2c..52fca800e6f7 100644
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c
@@ -1086,12 +1086,6 @@ qca8k_setup(struct dsa_switch *ds)
 	if (ret)
 		return ret;
 
-	/* Start by setting up the register mapping */
-	priv->regmap = devm_regmap_init(ds->dev, NULL, priv,
-					&qca8k_regmap_config);
-	if (IS_ERR(priv->regmap))
-		dev_warn(priv->dev, "regmap initialization failed");
-
 	ret = qca8k_setup_mdio_bus(priv);
 	if (ret)
 		return ret;
@@ -2077,6 +2071,14 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
 		gpiod_set_value_cansleep(priv->reset_gpio, 0);
 	}
 
+	/* Start by setting up the register mapping */
+	priv->regmap = devm_regmap_init(&mdiodev->dev, NULL, priv,
+					&qca8k_regmap_config);
+	if (IS_ERR(priv->regmap)) {
+		dev_err(priv->dev, "regmap initialization failed");
+		return PTR_ERR(priv->regmap);
+	}
+
 	/* Check the detected switch id */
 	ret = qca8k_read_switch_id(priv);
 	if (ret)
-- 
2.32.0