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Commit 03a19cbb authored by Emmanuel Grumbach's avatar Emmanuel Grumbach
Browse files

iwlwifi: pcie: fix (again) prepare card flow 



The hardware bug in the commit mentioned below forces us
not to re-enable the clock gating in the Host Cluster.
The impact on the power consumption is minimal and it allows
the WAKE_ME interrupt to propagate.

CC: <stable@vger.kernel.org> [4.1+]
Fixes: c9fdec9f ("iwlwifi: pcie: fix prepare card flow")
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent f0afea54

drivers/net/wireless/iwlwifi/pcie/trans.c

+2 −8
Original line number Diff line number Diff line
@@ -592,10 +592,8 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans) 


		do {

			ret = iwl_pcie_set_hw_ready(trans);

			if (ret >= 0) {

				ret = 0;

				goto out;

			}

			if (ret >= 0)

				return 0;



			usleep_range(200, 1000);

			t += 200;
@@ -605,10 +603,6 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans) 


	IWL_ERR(trans, "Couldn't prepare the card\n");



out:

	iwl_clear_bit(trans, CSR_DBG_LINK_PWR_MGMT_REG,

		      CSR_RESET_LINK_PWR_MGMT_DISABLED);



	return ret;

}