[SRU][N:linux][PATCH 0/2] Fix ARL-U/H suspend issues
Thibault Ferrante
thibault.ferrante at canonical.com
Wed Aug 6 23:02:48 UTC 2025
BugLink: https://bugs.launchpad.net/bugs/2112469
[ Impact ]
* Multiple issues are noticed when validating Arrow Lake hardware after suspend.
- An ethernet interface cannot be up after suspend - LP: #2111232
- Found Network Controller configurations differences while running suspend stress tests - LP: #2110284
- Found DRM Device configurations differences while running suspend stress test - LP: #2110284
[ Fix ]
Fix has been pointed out by intel by integrating https://patchwork.kernel.org/project/linux-pm/patch/20250207225615.401235-7-xi.pardee@linux.intel.com/
It has been integrated in 6.15 :
- bd820906ea9d platform/x86/intel/pmc: Add Arrow Lake U/H support to intel_pmc_core driver
It has been backported to avoid bringing a large refactoring.
[ Test Plan ]
* Use targeted hardware to go into S3 and check for all network interfaces working.
[ Where problems could occur ]
* Regression in other intel hardware suspend management.
Todd Brandt (1):
platform/x86/intel/pmc: Fix Arrow Lake U/H NPU PCI ID
Xi Pardee (1):
platform/x86/intel/pmc: Add Arrow Lake U/H support to intel_pmc_core
driver
drivers/platform/x86/intel/pmc/arl.c | 59 +++++++++++++++++++++++++++
drivers/platform/x86/intel/pmc/core.c | 1 +
drivers/platform/x86/intel/pmc/core.h | 1 +
3 files changed, 61 insertions(+)
--
2.48.1
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