diff mbox series

[net-next,03/15] net: dsa: mt7530: use unlocked regmap accessors

Message ID 4fcca663d13c38679b615d4a1a76bf5d5d885304.1680180959.git.daniel@makrotopia.org (mailing list archive)
State New, archived
Headers show
Series net: dsa: add support for MT7988 | expand

Commit Message

Daniel Golle March 30, 2023, 3:20 p.m. UTC 
Instead of wrapping the locked register accessor functions, use the
unlocked variants and add locking wrapper functions to let regmap
handle the locking.

This is a preparation towards being able to always use regmap to
access switch registers instead of open-coded accessor functions.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 drivers/net/dsa/mt7530.c | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

Comments

Andrew Lunn March 30, 2023, 9:01 p.m. UTC | #1 
On Thu, Mar 30, 2023 at 04:20:05PM +0100, Daniel Golle wrote:
> Instead of wrapping the locked register accessor functions, use the
> unlocked variants and add locking wrapper functions to let regmap
> handle the locking.
> 
> This is a preparation towards being able to always use regmap to
> access switch registers instead of open-coded accessor functions.
> 
> Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew
diff mbox series

Patch

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 5685c71bc9173..d8b041d79f2b7 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2900,7 +2900,7 @@  static int mt7530_regmap_read(void *context, unsigned int reg, unsigned int *val
 {
 	struct mt7530_priv *priv = context;
 
-	*val = mt7530_read(priv, reg);
+	*val = mt7530_mii_read(priv, reg);
 	return 0;
 };
 
@@ -2908,23 +2908,25 @@  static int mt7530_regmap_write(void *context, unsigned int reg, unsigned int val
 {
 	struct mt7530_priv *priv = context;
 
-	mt7530_write(priv, reg, val);
+	mt7530_mii_write(priv, reg, val);
 	return 0;
 };
 
-static int mt7530_regmap_update_bits(void *context, unsigned int reg,
-				     unsigned int mask, unsigned int val)
+static void
+mt7530_mdio_regmap_lock(void *mdio_lock)
 {
-	struct mt7530_priv *priv = context;
+	mutex_lock_nested(mdio_lock, MDIO_MUTEX_NESTED);
+}
 
-	mt7530_rmw(priv, reg, mask, val);
-	return 0;
-};
+static void
+mt7530_mdio_regmap_unlock(void *mdio_lock)
+{
+	mutex_unlock(mdio_lock);
+}
 
 static const struct regmap_bus mt7531_regmap_bus = {
 	.reg_write = mt7530_regmap_write,
 	.reg_read = mt7530_regmap_read,
-	.reg_update_bits = mt7530_regmap_update_bits,
 };
 
 static int
@@ -2950,6 +2952,9 @@  mt7531_create_sgmii(struct mt7530_priv *priv)
 		mt7531_pcs_config[i]->reg_stride = 4;
 		mt7531_pcs_config[i]->reg_base = MT7531_SGMII_REG_BASE(5 + i);
 		mt7531_pcs_config[i]->max_register = 0x17c;
+		mt7531_pcs_config[i]->lock = mt7530_mdio_regmap_lock;
+		mt7531_pcs_config[i]->unlock = mt7530_mdio_regmap_unlock;
+		mt7531_pcs_config[i]->lock_arg = &priv->bus->mdio_lock;
 
 		regmap = devm_regmap_init(priv->dev,
 					  &mt7531_regmap_bus, priv,