From: Johannes Berg <[email protected]> Due to a hardware issue, certain power saving had to be disabled. However, this issue was fixed in B-step, so the workaround only needs to apply to A-step.
Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Luca Coelho <[email protected]> --- drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index a5c0f69423d2..cd109740632d 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -761,6 +761,15 @@ static void iwl_pcie_rx_hw_init(struct iwl_trans *trans, struct iwl_rxq *rxq) void iwl_pcie_enable_rx_wake(struct iwl_trans *trans, bool enable) { + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_9000) + return; + + if (CSR_HW_REV_STEP(trans->hw_rev) != SILICON_A_STEP) + return; + + if (!trans->cfg->integrated) + return; + /* * Turn on the chicken-bits that cause MAC wakeup for RX-related * values. @@ -768,12 +777,10 @@ void iwl_pcie_enable_rx_wake(struct iwl_trans *trans, bool enable) * bug where shadow registers are not in the retention list and their * value is lost when NIC powers down */ - if (trans->cfg->integrated) { - iwl_set_bit(trans, CSR_MAC_SHADOW_REG_CTRL, - CSR_MAC_SHADOW_REG_CTRL_RX_WAKE); - iwl_set_bit(trans, CSR_MAC_SHADOW_REG_CTL2, - CSR_MAC_SHADOW_REG_CTL2_RX_WAKE); - } + iwl_set_bit(trans, CSR_MAC_SHADOW_REG_CTRL, + CSR_MAC_SHADOW_REG_CTRL_RX_WAKE); + iwl_set_bit(trans, CSR_MAC_SHADOW_REG_CTL2, + CSR_MAC_SHADOW_REG_CTL2_RX_WAKE); } static void iwl_pcie_rx_mq_hw_init(struct iwl_trans *trans) -- 2.11.0
