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Emanuele Ghidoli 12a895faa0 net: phy: dp83867: Disable EEE support as not implemented 
[ Upstream commit 84a905290c ]

While the DP83867 PHYs report EEE capability through their feature
registers, the actual hardware does not support EEE (see Links).
When the connected MAC enables EEE, it causes link instability and
communication failures.

The issue is reproducible with a iMX8MP and relevant stmmac ethernet port.
Since the introduction of phylink-managed EEE support in the stmmac driver,
EEE is now enabled by default, leading to issues on systems using the
DP83867 PHY.

Call phy_disable_eee during phy initialization to prevent EEE from being
enabled on DP83867 PHYs.

Link: https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1445244/dp83867ir-dp83867-disable-eee-lpi
Link: https://e2e.ti.com/support/interface-group/interface/f/interface-forum/658638/dp83867ir-eee-energy-efficient-ethernet
Fixes: 2a10154abc ("net: phy: dp83867: Add TI dp83867 phy")
Cc: stable@vger.kernel.org
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20251023144857.529566-1-ghidoliemanuele@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
[ replaced phy_disable_eee() call with direct eee_broken_modes assignment ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-12-07 06:09:15 +09:00
arch bpf: Do not audit capability check in do_jit() 2025-12-07 06:09:13 +09:00
block blk-crypto: fix missing blktrace bio split events 2025-10-29 14:03:07 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:22:01 +02:00
crypto crypto: essiv - Check ssize for decryption and in-place encryption 2025-10-19 16:21:43 +02:00
Documentation dt-bindings: usb: dwc3-imx8mp: dma-range is required only for imx8mp 2025-12-07 06:09:14 +09:00
drivers net: phy: dp83867: Disable EEE support as not implemented 2025-12-07 06:09:15 +09:00
fs NFSD: Fix crash in nfsd4_read_release() 2025-12-07 06:09:13 +09:00
include block: fix op_is_zone_mgmt() to handle REQ_OP_ZONE_RESET_ALL 2025-12-07 06:09:14 +09:00
init init: handle bootloader identifier in kernel parameters 2025-10-19 16:21:45 +02:00
io_uring io_uring: fix possible deadlock in io_register_iowq_max_workers() 2024-11-17 15:06:25 +01:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:05:26 +01:00
kernel bpf: Sync pending IRQ work before freeing ring buffer 2025-12-07 06:09:13 +09:00
lib minmax: don't use max() in situations that want a C constant expression 2025-10-19 16:21:52 +02:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm minmax: make generic MIN() and MAX() macros available everywhere 2025-10-19 16:21:52 +02:00
net mptcp: restore window probe 2025-12-07 06:09:13 +09:00
samples samples: mei: Fix building on musl libc 2025-08-28 16:24:07 +02:00
scripts locking: Introduce __cleanup() based infrastructure 2025-10-19 16:21:51 +02:00
security KEYS: trusted_tpm1: Compare HMAC values in constant time 2025-10-19 16:21:45 +02:00
sound ALSA: usb-audio: fix control pipe direction 2025-12-07 06:09:13 +09:00
tools libbpf: Fix powerpc's stack register definition in bpf_tracing.h 2025-12-07 06:09:14 +09:00
usr kbuild: hdrcheck: fix cross build with clang 2025-06-27 11:05:22 +01:00
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-10-22 15:40:41 +02:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Remove *.orig pattern from .gitignore 2024-10-17 15:11:10 +02:00
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS trace: Relocate event helper files 2024-04-10 16:19:24 +02:00
Makefile Linux 5.15.196 2025-10-29 14:03:16 +01:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.