From f7d0a4797feaee0c03d3f1cd5459702b13337ba2 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Sun, 30 Apr 2023 14:32:03 +0100 Subject: generic: mt7530: backport support for the MT7988 built-in switch 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 (cherry picked from commit 958fdf36e35c814eb83faf2c39db4ca379c921b5) --- ...-dsa-mt7530-use-unlocked-regmap-accessors.patch | 74 ++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch (limited to 'target/linux/generic/backport-5.15/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch') diff --git a/target/linux/generic/backport-5.15/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch b/target/linux/generic/backport-5.15/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch new file mode 100644 index 0000000000..1b4a956199 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch @@ -0,0 +1,74 @@ +From 1bd099c49f65ed923b9f19b8c4b3cd1ff0024091 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:17:40 +0100 +Subject: [PATCH 06/16] 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 +@@ -2899,7 +2899,7 @@ 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; + }; + +@@ -2907,23 +2907,25 @@ 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 +@@ -2949,6 +2951,9 @@ 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, -- cgit v1.2.3