From: Aaron Katzin <aaron.katzin@intel.com>
Date: Tue, 12 May 2026 19:34:27 +0000 (+0300)
Subject: wifi: iwlwifi: pcie: add debug print for resume flow if powered off
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=e2323929a68af099481cf13dd37038fa12647bd4;p=thirdparty%2Flinux.git

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

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>
---

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 78482db732c1..fdafbad506a7 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -1239,8 +1239,12 @@ static int _iwl_pci_resume(struct device *device, bool restore)
 		u32 scratch = iwl_read32(trans, CSR_FUNC_SCRATCH);
 
 		if (!(scratch & CSR_FUNC_SCRATCH_POWER_OFF_MASK) ||
-		    scratch == ~0U)
+		    scratch == ~0U) {
 			device_was_powered_off = true;
+			IWL_DEBUG_WOWLAN(trans,
+					 "Scratch 0x%08x indicates device was powered off\n",
+					 scratch);
+		}
 	} else {
 		/*
 		 * bh are re-enabled by iwl_trans_pcie_release_nic_access,