| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 201/310] iwlwifi: pcie: only use d0i3 in suspend/resume if system_pm is set to d0i3 | Date | Wed, 11 Apr 2018 20:35:40 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Luca Coelho <luciano.coelho@intel.com>
[ Upstream commit e4c49c4937951de1cdbe35572ade40c948dec1e1 ]
We only need to handle d0i3 entry and exit during suspend resume if system_pm is set to IWL_PLAT_PM_MODE_D0I3, otherwise d0i3 entry failures will cause suspend to fail.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=194791
Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -2824,7 +2824,8 @@ static struct iwl_trans_dump_data #ifdef CONFIG_PM_SLEEP static int iwl_trans_pcie_suspend(struct iwl_trans *trans) { - if (trans->runtime_pm_mode == IWL_PLAT_PM_MODE_D0I3) + if (trans->runtime_pm_mode == IWL_PLAT_PM_MODE_D0I3 && + (trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3)) return iwl_pci_fw_enter_d0i3(trans); return 0; @@ -2832,7 +2833,8 @@ static int iwl_trans_pcie_suspend(struct static void iwl_trans_pcie_resume(struct iwl_trans *trans) { - if (trans->runtime_pm_mode == IWL_PLAT_PM_MODE_D0I3) + if (trans->runtime_pm_mode == IWL_PLAT_PM_MODE_D0I3 && + (trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3)) iwl_pci_fw_exit_d0i3(trans); } #endif /* CONFIG_PM_SLEEP */
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