From efb41b8e9b7bbb08ace1930373bff63d4f5cc6e2 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Mon, 3 Apr 2023 02:17:40 +0100 Subject: [PATCH 05/48] net: dsa: mt7530: use unlocked regmap accessors 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 Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/dsa/mt7530.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2974,7 +2974,7 @@ static int mt7530_regmap_read(void *cont { struct mt7530_priv *priv = context; - *val = mt7530_read(priv, reg); + *val = mt7530_mii_read(priv, reg); return 0; }; @@ -2982,23 +2982,25 @@ static int mt7530_regmap_write(void *con { 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 @@ -3024,6 +3026,9 @@ mt7531_create_sgmii(struct mt7530_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,