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| author | Johannes Berg <johannes.berg@intel.com> | 2013-06-12 14:55:40 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-06-18 11:51:51 +0200 |
| commit | b01147140a2a609d91538fdfec8e2d688d379662 (patch) | |
| tree | 4bf22ae0ce05c21c39a8161e79839bdff9e5c858 /drivers/net/wireless/iwlwifi/mvm/d3.c | |
| parent | a2d0909a687b4d250cc2b7481072e361678745ba (diff) | |
| download | lwn-b01147140a2a609d91538fdfec8e2d688d379662.tar.gz lwn-b01147140a2a609d91538fdfec8e2d688d379662.zip | |
iwlwifi: mvm: allow firmware crashes to wake system for debug
When the D3 firmware crashes, it can be helpful for debugging to
resume the system to get the SRAM snapshot to see why it crashed.
Allow enabling this with a debugfs option.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/d3.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/d3.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c index 8c49db02c9c1..7e5e5c2f9f87 100644 --- a/drivers/net/wireless/iwlwifi/mvm/d3.c +++ b/drivers/net/wireless/iwlwifi/mvm/d3.c @@ -1026,6 +1026,12 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw, if (ret) goto out; +#ifdef CONFIG_IWLWIFI_DEBUGFS + if (mvm->d3_wake_sysassert) + d3_cfg_cmd_data.wakeup_flags |= + cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); +#endif + /* must be last -- this switches firmware state */ ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); if (ret) |