From 2f629a7772e2a7bdaff25178917a40073f79702c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Sat, 16 Oct 2021 11:43:55 +0300
Subject: [PATCH] iwlwifi: mvm: reset PM state on unsuccessful resume
Git-commit: 2f629a7772e2a7bdaff25178917a40073f79702c
Patch-mainline: v5.16-rc1
References: git-fixes stable-5.14.19
If resume fails for some reason, we need to set the PM state
back to normal so we're able to send commands during firmware
reset, rather than failing all of them because we're in D3.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 708a39aaca22 ("iwlwifi: mvm: don't send commands during suspend\resume transition")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20211016114029.7ceb9eaca9f6.If0cbef38c6d07ec1ddce125878a4bdadcb35d2c9@changeid
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 9f706fffb592..d3013a51a509 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -2336,7 +2336,6 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
false, 0);
ret = 1;
- mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
goto err;
}
@@ -2385,6 +2384,7 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
}
}
+ /* after the successful handshake, we're out of D3 */
mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
/*
@@ -2455,6 +2455,9 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
*/
set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
+ /* regardless of what happened, we're now out of D3 */
+ mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
+
return 1;
}
--
2.26.2