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| author | Oleksij Rempel <o.rempel@pengutronix.de> | 2024-03-04 14:56:12 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-03-08 05:23:50 +0100 |
| commit | e3fb8e8ba72b053d05ca2602acdd6b869f9f296f (patch) | |
| tree | 5abd619feafad6aacdc71331db51939ce141b0c5 /drivers | |
| parent | Merge tag 'net-6.8-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netd... (diff) | |
| download | linux-e3fb8e8ba72b053d05ca2602acdd6b869f9f296f.tar.xz linux-e3fb8e8ba72b053d05ca2602acdd6b869f9f296f.zip | |
net: dsa: microchip: make sure drive strength configuration is not lost by soft reset
This driver has two separate reset sequence in different places:
- gpio/HW reset on start of ksz_switch_register()
- SW reset on start of ksz_setup()
The second one will overwrite drive strength configuration made in the
ksz_switch_register().
To fix it, move ksz_parse_drive_strength() from ksz_switch_register() to
ksz_setup().
Fixes: d67d7247f641 ("net: dsa: microchip: Add drive strength configuration")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20240304135612.814404-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/dsa/microchip/ksz_common.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c index 245dfb7a7a31..25a49708f484 100644 --- a/drivers/net/dsa/microchip/ksz_common.c +++ b/drivers/net/dsa/microchip/ksz_common.c @@ -2185,6 +2185,8 @@ static int ksz_pirq_setup(struct ksz_device *dev, u8 p) return ksz_irq_common_setup(dev, pirq); } +static int ksz_parse_drive_strength(struct ksz_device *dev); + static int ksz_setup(struct dsa_switch *ds) { struct ksz_device *dev = ds->priv; @@ -2206,6 +2208,10 @@ static int ksz_setup(struct dsa_switch *ds) return ret; } + ret = ksz_parse_drive_strength(dev); + if (ret) + return ret; + /* set broadcast storm protection 10% rate */ regmap_update_bits(ksz_regmap_16(dev), regs[S_BROADCAST_CTRL], BROADCAST_STORM_RATE, @@ -4242,10 +4248,6 @@ int ksz_switch_register(struct ksz_device *dev) for (port_num = 0; port_num < dev->info->port_cnt; ++port_num) dev->ports[port_num].interface = PHY_INTERFACE_MODE_NA; if (dev->dev->of_node) { - ret = ksz_parse_drive_strength(dev); - if (ret) - return ret; - ret = of_get_phy_mode(dev->dev->of_node, &interface); if (ret == 0) dev->compat_interface = interface; |