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Filename Latest commit message Latest commit date
Ben Wolsieffer 7fbce1e46b net: stmmac: dwmac-stm32: fix resume on STM32 MCU
[ Upstream commit 6f195d6b0da3b689922ba9e302af2f49592fa9fc ]

The STM32MP1 keeps clk_rx enabled during suspend, and therefore the
driver does not enable the clock in stm32_dwmac_init() if the device was
suspended. The problem is that this same code runs on STM32 MCUs, which
do disable clk_rx during suspend, causing the clock to never be
re-enabled on resume.

This patch adds a variant flag to indicate that clk_rx remains enabled
during suspend, and uses this to decide whether to enable the clock in
stm32_dwmac_init() if the device was suspended.

This approach fixes this specific bug with limited opportunity for
unintended side-effects, but I have a follow up patch that will refactor
the clock configuration and hopefully make it less error prone.

Fixes: 6528e02cc9 ("net: ethernet: stmmac: add adaptation for stm32mp157c.")
Signed-off-by: Ben Wolsieffer <ben.wolsieffer@hefring.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230927175749.1419774-1-ben.wolsieffer@hefring.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-10 21:46:44 +02:00
arch
block
certs
crypto
Documentation
drivers net: stmmac: dwmac-stm32: fix resume on STM32 MCU 2023-10-10 21:46:44 +02:00
fs NFSv4: Fix a nfs4_state_manager() race 2023-10-10 21:46:44 +02:00
include netfilter: handle the connecting collision properly in nf_conntrack_proto_sctp 2023-10-10 21:46:44 +02:00
init
ipc
kernel ring-buffer: Update "shortest_full" in polling 2023-10-10 21:46:41 +02:00
lib
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net netfilter: handle the connecting collision properly in nf_conntrack_proto_sctp 2023-10-10 21:46:44 +02:00
samples
scripts modpost: add missing else to the "of" check 2023-10-10 21:46:44 +02:00
security ima: Finish deprecation of IMA_TRUSTED_KEYRING Kconfig 2023-10-10 21:46:43 +02:00
sound ALSA: hda: Disable power save for solving pop issue on Lenovo ThinkCentre M70q 2023-10-10 21:46:41 +02:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
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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.