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From:   gregory.greenman@intel.com
To:     johannes@sipsolutions.net
Cc:     linux-wireless@vger.kernel.org,
        Johannes Berg <johannes.berg@intel.com>,
        Gregory Greenman <gregory.greenman@intel.com>
Subject: [PATCH 08/14] wifi: iwlwifi: pcie: adjust Bz device timings
Date:   Wed, 31 May 2023 19:50:00 +0300
Message-Id: <20230531194629.9a5627c1ff18.Ifcfbccd5458bd9ebd496aa834284fb0facfcaaef@changeid>
In-Reply-To: <20230531165006.273284-1-gregory.greenman@intel.com>
References: <20230531165006.273284-1-gregory.greenman@intel.com>
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From: Johannes Berg <johannes.berg@intel.com>

The 100ms shouldn't be needed, only 10ms. However after
reset we should have 10ms as well for these devices.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index b281850fbf7a..db10bd3c1058 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -131,13 +131,15 @@ static int iwl_trans_pcie_sw_reset(struct iwl_trans *trans,
 				   bool retake_ownership)
 {
 	/* Reset entire device - do controller reset (results in SHRD_HW_RST) */
-	if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ)
+	if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) {
 		iwl_set_bit(trans, CSR_GP_CNTRL,
 			    CSR_GP_CNTRL_REG_FLAG_SW_RESET);
-	else
+		usleep_range(10000, 20000);
+	} else {
 		iwl_set_bit(trans, CSR_RESET,
 			    CSR_RESET_REG_FLAG_SW_RESET);
-	usleep_range(5000, 6000);
+		usleep_range(5000, 6000);
+	}
 
 	if (retake_ownership)
 		return iwl_pcie_prepare_card_hw(trans);
@@ -475,7 +477,7 @@ void iwl_pcie_apm_stop_master(struct iwl_trans *trans)
 				   CSR_GP_CNTRL_REG_FLAG_BUS_MASTER_DISABLE_STATUS,
 				   CSR_GP_CNTRL_REG_FLAG_BUS_MASTER_DISABLE_STATUS,
 				   100);
-		msleep(100);
+		usleep_range(10000, 20000);
 	} else {
 		iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
 
-- 
2.38.1