openwrt/target/linux/generic/backport-6.1/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch
John Audia d1ac7230d0 kernel: bump 6.1 to 6.1.50
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.50

All patches automatically rebased.

Build system: x86/64
Build-tested: x86/64/AMD Cezanne, filogic/xiaomi_redmi-router-ax6000-ubootmod, ipq806x/R7800
Run-tested: x86/64/AMD Cezanne, filogic/xiaomi_redmi-router-ax6000-ubootmod, ipq806x/R7800

Signed-off-by: John Audia <therealgraysky@proton.me>
2023-09-01 21:01:08 +02:00

75 lines
2.2 KiB
Diff

From 33396408776385f3d2f6069646169a6b5b28e3b3 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 3 Apr 2023 02:17:40 +0100
Subject: [PATCH 03/13] 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 <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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
@@ -2941,7 +2941,7 @@ 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;
};
@@ -2949,23 +2949,25 @@ 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
@@ -2991,6 +2993,9 @@ 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,