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iwlwifi: mvm: tell firmware about required LTR delay

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Some (integrated) devices need a longer LTR delay than the firmware
would typically apply, tell it about that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200418110539.24276ae2ad61.I8831a538f75893d5cee47b4a81f4b9b7fd0e8bea@changeid
This commit is contained in:
Johannes Berg
2020-04-18 11:08:54 +03:00
committed by Luca Coelho
parent 2d39683e73
commit 0928df0a86
4 changed files with 36 additions and 9 deletions
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14
drivers/net/wireless/intel/iwlwifi/mvm/fw.c
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@@ -102,6 +102,20 @@ static int iwl_set_soc_latency(struct iwl_mvm *mvm)
if (!mvm->trans->trans_cfg->integrated)
cmd.flags = cpu_to_le32(SOC_CONFIG_CMD_FLAGS_DISCRETE);
BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_NONE !=
SOC_FLAGS_LTR_APPLY_DELAY_NONE);
BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_200US !=
SOC_FLAGS_LTR_APPLY_DELAY_200);
BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_2500US !=
SOC_FLAGS_LTR_APPLY_DELAY_2500);
BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_1820US !=
SOC_FLAGS_LTR_APPLY_DELAY_1820);
if (mvm->trans->trans_cfg->ltr_delay != IWL_CFG_TRANS_LTR_DELAY_NONE &&
!WARN_ON(!mvm->trans->trans_cfg->integrated))
cmd.flags |= le32_encode_bits(mvm->trans->trans_cfg->ltr_delay,
SOC_FLAGS_LTR_APPLY_DELAY_MASK);
if (iwl_fw_lookup_cmd_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
SCAN_REQ_UMAC) >= 2 &&
mvm->trans->trans_cfg->low_latency_xtal)