net: phy: Constify struct mdio_device_id

'struct mdio_device_id' is not modified in these drivers.

Constifying these structures moves some data to a read-only section, so
increase overall security.

net: phy: Constify struct mdio_device_id

'struct mdio_device_id' is not modified in these drivers.

Constifying these structures moves some data to a read-only section, so
increase overall security.

On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
27014 12792 0 39806 9b7e drivers/net/phy/broadcom.o

After:
=====
text data bss dec hex filename
27206 12600 0 39806 9b7e drivers/net/phy/broadcom.o

Signed-off-by: Christophe JAILLET <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Link: https://patch.msgid.link/403c381b7d9156b67ad68ffc44b8eee70c5e86a9.1736691226.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <[email protected]>

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net: phy: correct format of block comments

Block comments should not use a trailing */ on a separate line and every
line of a block comment should start with an '*'.

Signed-off-by: Wenpeng Liang <l

net: phy: correct format of block comments

Block comments should not use a trailing */ on a separate line and every
line of a block comment should start with an '*'.

Signed-off-by: Wenpeng Liang <[email protected]>
Signed-off-by: Weihang Li <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: introduce phydev->port

At the moment, PORT_MII is reported in the ethtool ops. This is odd
because it is an interface between the MAC and the PHY and no external
port. Some network card dr

net: phy: introduce phydev->port

At the moment, PORT_MII is reported in the ethtool ops. This is odd
because it is an interface between the MAC and the PHY and no external
port. Some network card drivers will overwrite the port to twisted pair
or fiber, though. Even worse, the MDI/MDIX setting is only used by
ethtool if the port is twisted pair.

Set the port to PORT_TP by default because most PHY drivers are copper
ones. If there is fibre support and it is enabled, the PHY driver will
set it to PORT_FIBRE.

This will change reporting PORT_MII to either PORT_TP or PORT_FIBRE;
except for the genphy fallback driver.

Suggested-by: Andrew Lunn <[email protected]>
Signed-off-by: Michael Walle <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: lxt: remove the use of .ack_interrupt()

In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
c

net: phy: lxt: remove the use of .ack_interrupt()

In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
called from (phy_enable_interrupts and phy_disable_interrupts), with
equivalent functionality.

This means that clearing interrupts now becomes something that the PHY
driver is responsible of doing, before enabling interrupts and after
clearing them. Make this driver follow the new contract.

Cc: Christophe Leroy <[email protected]>
Signed-off-by: Ioana Ciornei <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>

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net: phy: lxt: implement generic .handle_interrupt() callback

In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just r

net: phy: lxt: implement generic .handle_interrupt() callback

In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just returning
IRQ_NONE, based on the IRQ status register, to the PHY driver. Having
3 different IRQ handling callbacks (.handle_interrupt(),
.did_interrupt() and .ack_interrupt() ) is confusing so let the PHY
driver implement directly an IRQ handler like any other device driver.
Make this driver follow the new convention.

Cc: Christophe Leroy <[email protected]>
Signed-off-by: Ioana Ciornei <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>

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net: phy: provide and use genphy_read_status_fixed()

There are two drivers and generic code which contain exactly the same
code to read the status of a PHY operating without autonegotiation
enabled.

net: phy: provide and use genphy_read_status_fixed()

There are two drivers and generic code which contain exactly the same
code to read the status of a PHY operating without autonegotiation
enabled. Rather than duplicate this code, provide a helper to read
this information.

Signed-off-by: Russell King <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: use phy_resolve_aneg_pause()

Several drivers code their own version of this, working from the LPA
register, after setting the ethtool link partner advertisement bitmask.
Use the generic fu

net: phy: use phy_resolve_aneg_pause()

Several drivers code their own version of this, working from the LPA
register, after setting the ethtool link partner advertisement bitmask.
Use the generic function instead.

Signed-off-by: Russell King <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: lxt: Add suspend/resume support to LXT971 and LXT973.

All LXT PHYs implement the standard "power down" bit 11 of
BMCR, so this patch adds support using the generic
genphy_{suspend,resume}

net: phy: lxt: Add suspend/resume support to LXT971 and LXT973.

All LXT PHYs implement the standard "power down" bit 11 of
BMCR, so this patch adds support using the generic
genphy_{suspend,resume} functions added by
commit 0f0ca340e57b ("phy: power management support").

LXT970 is left aside because all registers get cleared upon
"power down" exit.

Reviewed-by: Heiner Kallweit <[email protected]>
Signed-off-by: Christophe Leroy <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: switch drivers to use dynamic feature detection

Recently genphy_read_abilities() has been added that dynamically detects
clause 22 PHY abilities. I *think* this detection should work with

net: phy: switch drivers to use dynamic feature detection

Recently genphy_read_abilities() has been added that dynamically detects
clause 22 PHY abilities. I *think* this detection should work with all
supported PHY's, at least for the ones with basic features sets, i.e.
PHY_BASIC_FEATURES and PHY_GBIT_FEATURES. So let's remove setting these
features explicitly and rely on phylib feature detection.

I don't have access to most of these PHY's, therefore I'd appreciate
regression testing.

v2:
- make the feature constant a comment so that readers know which
features are supported by the respective PHY

Signed-off-by: Heiner Kallweit <[email protected]>
Tested-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: Convert some PHY and MDIO driver files to SPDX headers

Where the license text and the MODULE_LICENSE() value agree, convert
to using an SPDX header, removing the license text.

Signed-off-

net: phy: Convert some PHY and MDIO driver files to SPDX headers

Where the license text and the MODULE_LICENSE() value agree, convert
to using an SPDX header, removing the license text.

Signed-off-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: Convert u32 phydev->lp_advertising to linkmode

Convert phy drivers to report the link partner advertised modes using
a linkmode bitmap. This allows them to report the higher speeds which
d

net: phy: Convert u32 phydev->lp_advertising to linkmode

Convert phy drivers to report the link partner advertised modes using
a linkmode bitmap. This allows them to report the higher speeds which
don't fit in a u32.

Signed-off-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: remove flag PHY_HAS_INTERRUPT from driver configs

Now that flag PHY_HAS_INTERRUPT has been replaced with a check for
callbacks config_intr and ack_interrupt, we can remove setting this
fla

net: phy: remove flag PHY_HAS_INTERRUPT from driver configs

Now that flag PHY_HAS_INTERRUPT has been replaced with a check for
callbacks config_intr and ack_interrupt, we can remove setting this
flag from all driver configs.
Last but not least remove flag PHY_HAS_INTERRUPT completely.

Signed-off-by: Heiner Kallweit <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: remove generic settings for callbacks config_aneg and read_status from drivers

Remove generic settings for callbacks config_aneg and read_status
from drivers.

Signed-off-by: Heiner Kallwe

net: phy: remove generic settings for callbacks config_aneg and read_status from drivers

Remove generic settings for callbacks config_aneg and read_status
from drivers.

Signed-off-by: Heiner Kallweit <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: lxt: Export link partner advertising

Provide link partner advertising information.
Removed testing for gigabit modes, which is useless for a fast ethernet phy.

Signed-off-by: Thomas Bogen

net: phy: lxt: Export link partner advertising

Provide link partner advertising information.
Removed testing for gigabit modes, which is useless for a fast ethernet phy.

Signed-off-by: Thomas Bogendoerfer <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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Replace <asm/uaccess.h> with <linux/uaccess.h> globally

This was entirely automated, using the script by Al:

PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PA

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

This was entirely automated, using the script by Al:

PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
$(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)

to do the replacement at the end of the merge window.

Requested-by: Al Viro <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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lxt: simplify lxt970_config_init()

This function declares the 'err' local variable for no good reason, get rid
of it.

Signed-off-by: Sergei Shtylyov <[email protected]>
Signed-off-

lxt: simplify lxt970_config_init()

This function declares the 'err' local variable for no good reason, get rid
of it.

Signed-off-by: Sergei Shtylyov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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lxt: simplify lxt97[01]_config_intr()

Both these functions declare the 'err' local variables for no good reason,
get rid of them.

Signed-off-by: Sergei Shtylyov <[email protected]>

lxt: simplify lxt97[01]_config_intr()

Both these functions declare the 'err' local variables for no good reason,
get rid of them.

Signed-off-by: Sergei Shtylyov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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phy: Centralize setting driver module owner

Rather than have each driver set the driver owner field, do it once in
the core code. This will also help with later changes, when the device
structure wi

phy: Centralize setting driver module owner

Rather than have each driver set the driver owner field, do it once in
the core code. This will also help with later changes, when the device
structure will move.

Signed-off-by: Andrew Lunn <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: replace phy_drivers_register calls

Replace module init/exit which only calls phy_drivers_register with
module_phy_driver macro.

Tested using Micrel driver, and otherwise compile-tested on

net: phy: replace phy_drivers_register calls

Replace module init/exit which only calls phy_drivers_register with
module_phy_driver macro.

Tested using Micrel driver, and otherwise compile-tested only.

Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: phy: lxt: fix checkpath errors

checkpath spotted a few errors in this file, fix them.

Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Supject: phy: make local function static

Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

lxt PHY: Support for the buggy LXT973 rev A2

This patch adds proper handling of the buggy revision A2 of LXT973 phy, adding
precautions linked to ERRATA Item 4:

Revision A2 of LXT973 chip randomly

lxt PHY: Support for the buggy LXT973 rev A2

This patch adds proper handling of the buggy revision A2 of LXT973 phy, adding
precautions linked to ERRATA Item 4:

Revision A2 of LXT973 chip randomly returns the contents of the previous even
register when you read a odd register regularly

Signed-off-by: Christophe Leroy <[email protected]>
Acked-by: Richard Cochran <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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phylib: Support registering a bunch of drivers

If registering of one of them fails, all already registered drivers
of this module will be unregistered.

Use the new register/unregister functions in

phylib: Support registering a bunch of drivers

If registering of one of them fails, all already registered drivers
of this module will be unregistered.

Use the new register/unregister functions in all drivers
registering more than one driver.

amd.c, realtek.c: Simplify: directly return registration result.

Tested with broadcom.c
All others compile-tested.

Signed-off-by: Christian Hohnstaedt <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net/phy: fix many "defined but unused" warnings

MODULE_DEVICE_TABLE only expands to something if it's compiled
for a module. So when building-in support for the phys, the
mdio_device_id tables are

net/phy: fix many "defined but unused" warnings

MODULE_DEVICE_TABLE only expands to something if it's compiled
for a module. So when building-in support for the phys, the
mdio_device_id tables are unused. Marking them with __maybe_unused
fixes the following warnings:

drivers/net/phy/bcm63xx.c:134: warning: 'bcm63xx_tbl' defined but not used
drivers/net/phy/broadcom.c:933: warning: 'broadcom_tbl' defined but not used
drivers/net/phy/cicada.c:162: warning: 'cicada_tbl' defined but not used
drivers/net/phy/davicom.c:222: warning: 'davicom_tbl' defined but not used
drivers/net/phy/et1011c.c:114: warning: 'et1011c_tbl' defined but not used
drivers/net/phy/icplus.c:137: warning: 'icplus_tbl' defined but not used
drivers/net/phy/lxt.c:226: warning: 'lxt_tbl' defined but not used
drivers/net/phy/marvell.c:724: warning: 'marvell_tbl' defined but not used
drivers/net/phy/micrel.c:234: warning: 'micrel_tbl' defined but not used
drivers/net/phy/national.c:154: warning: 'ns_tbl' defined but not used
drivers/net/phy/qsemi.c:141: warning: 'qs6612_tbl' defined but not used
drivers/net/phy/realtek.c:82: warning: 'realtek_tbl' defined but not used
drivers/net/phy/smsc.c:257: warning: 'smsc_tbl' defined but not used
drivers/net/phy/ste10Xp.c:135: warning: 'ste10Xp_tbl' defined but not used
drivers/net/phy/vitesse.c:195: warning: 'vitesse_tbl' defined but not used

Signed-off-by: Uwe Kleine-König <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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phylib: Add autoload support for the LXT973 phy.

Commit e13647c1 (phylib: Add support for the LXT973 phy.) added a new ID
but neglected to also add it to the MODULE_DEVICE_TABLE.

Signed-off-by: Dav

phylib: Add autoload support for the LXT973 phy.

Commit e13647c1 (phylib: Add support for the LXT973 phy.) added a new ID
but neglected to also add it to the MODULE_DEVICE_TABLE.

Signed-off-by: David Woodhouse <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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