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wifi: iwlwifi: pcie: add debug print for resume flow if powered off

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Log when the resume flow identifies based on the
scratch register that the device was powered off.

Signed-off-by: Aaron Katzin <aaron.katzin@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://patch.msgid.link/20260512222731.42623e43fde7.Ibcd656ca845828ce6f2358f9ef80e1ddf03f8f59@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
This commit is contained in:
Aaron Katzin
2026-05-12 22:34:27 +03:00
committed by Miri Korenblit
parent b4049b093a
commit e2323929a6
1 changed files with 5 additions and 1 deletions
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6
drivers/net/wireless/intel/iwlwifi/pcie/drv.c
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@@ -1239,8 +1239,12 @@ static int _iwl_pci_resume(struct device *device, bool restore)
u32 scratch = iwl_read32(trans, CSR_FUNC_SCRATCH); u32 scratch = iwl_read32(trans, CSR_FUNC_SCRATCH);
if (!(scratch & CSR_FUNC_SCRATCH_POWER_OFF_MASK) || if (!(scratch & CSR_FUNC_SCRATCH_POWER_OFF_MASK) ||
scratch == ~0U) scratch == ~0U) {
device_was_powered_off = true; device_was_powered_off = true;
IWL_DEBUG_WOWLAN(trans,
"Scratch 0x%08x indicates device was powered off\n",
scratch);
}
} else { } else {
/* /*
* bh are re-enabled by iwl_trans_pcie_release_nic_access, * bh are re-enabled by iwl_trans_pcie_release_nic_access,