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Implement soft_reset, suspend, and resume callbacks using
genphy_soft_reset(), genphy_suspend(), and genphy_resume()
to fix PHY initialization and power management issues.
The soft_reset callback is needed to properly recover the PHY after an
ifconfig down/up cycle. Without it, the PHY can remain in power-down
state, causing MDIO register access failures during config_init().
The soft reset ensures the PHY is operational before configuration.
The suspend/resume callbacks enable proper power management during
system suspend/resume cycles.
Fixes: b2908a989c59 ("net: phy: add driver for MaxLinear MxL86110 PHY")
Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Link: https://patch.msgid.link/20251223120940.407195-1-stefano.r@variscite.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add basic support for the MxL86111 PHY which in addition to the features
of the MxL86110 also comes with an SGMII interface.
Setup the interface mode and take care of in-band-an.
Currently only RGMII-to-UTP and SGMII-to-UTP modes are supported while the
PHY would also support RGMII-to-1000Base-X, including automatic selection
of the Fiber or UTP link depending on the presence of a link partner.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/707fd83ec0e11ea620d37f2125a394e9dd1b27fa.1755884175.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The .led_hw_control_get and .led_hw_control_set ops are indented with
spaces instead of tabs, unlike the rest of the values of the PHY's
struct phy_driver instance.
Use tabs instead of spaces resulting in a uniform indentation style.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/b9b7336ae309facc5e73874c62e64492fd749cc6.1755884175.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for forcing each connected LED to be always on or always off
by implementing the led_brightness_set() op.
This is done by modifying the COM_EXT_LED_GEN_CFG register to enable
force-mode and forcing the LED either on or off.
When calling the led_hw_control_set() force-mode is again disabled for
that LED.
Implement mxl86110_modify_extended_reg() locked helper instead of
manually acquiring and releasing the MDIO bus lock for single
__mxl86110_modify_extended_reg() calls.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/58eeefc8c24e06cd2110d3cefbd4236b1a4f44a2.1755884175.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for the MaxLinear MxL86110 Gigabit Ethernet PHY, a low-power,
cost-optimized transceiver supporting 10/100/1000 Mbps over twisted-pair
copper, compliant with IEEE 802.3.
The driver implements basic features such as:
- Device initialization
- RGMII interface timing configuration
- Wake-on-LAN support
- LED initialization and control via /sys/class/leds
This driver has been tested on multiple Variscite boards, including:
- VAR-SOM-MX93 (i.MX93)
- VAR-SOM-MX8M-PLUS (i.MX8MP)
Example boot log showing driver probe:
[ 7.692101] imx-dwmac 428a0000.ethernet eth0:
PHY [stmmac-0:00] driver [MXL86110 Gigabit Ethernet] (irq=POLL)
Signed-off-by: Stefano Radaelli <stefano.radaelli21@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250521212821.593057-1-stefano.radaelli21@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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