From b3bee580b1e200e4fc14091e3e118ae8280dc06c Mon Sep 17 00:00:00 2001 From: Roee Zamir Date: Tue, 2 Aug 2016 13:55:13 +0300 Subject: iwlwifi: mvm: Add debugfs function for clocks diff New function, reveals the diff between gp2 and host time. Signed-off-by: Roee Zamir Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/mvm/utils.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/utils.c') diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c index 7c138fedcb19..9e366e28c983 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c @@ -1225,6 +1225,28 @@ void iwl_mvm_inactivity_check(struct iwl_mvm *mvm) rcu_read_unlock(); } +void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, u32 *gp2, u64 *boottime) +{ + bool ps_disabled; + + lockdep_assert_held(&mvm->mutex); + + /* Disable power save when reading GP2 */ + ps_disabled = mvm->ps_disabled; + if (!ps_disabled) { + mvm->ps_disabled = true; + iwl_mvm_power_update_device(mvm); + } + + *gp2 = iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG); + *boottime = ktime_get_boot_ns(); + + if (!ps_disabled) { + mvm->ps_disabled = ps_disabled; + iwl_mvm_power_update_device(mvm); + } +} + int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif, enum iwl_lqm_cmd_operatrions operation, u32 duration, u32 timeout) -- cgit v1.2.3-70-g09d2