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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Luca Coelho <luciano.coelho@intel.com>,
	Kalle Valo <kvalo@codeaurora.org>,
	Sasha Levin <sashal@kernel.org>,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 142/205] iwlwifi: mvm: fix support for single antenna diversity
Date: Thu, 16 Jan 2020 11:41:57 -0500
Message-ID: <20200116164300.6705-142-sashal@kernel.org> (raw)
In-Reply-To: <20200116164300.6705-1-sashal@kernel.org>

From: Luca Coelho <luciano.coelho@intel.com>

[ Upstream commit bb99ff9baa02beb9216c86678999342197c849cc ]

When the single antenna diversity support was sent upstream, only some
definitions were sent, due to a bad revert.

Fix this by adding the actual code.

Fixes: 5952e0ec3f05 ("iwlwifi: mvm: add support for single antenna diversity")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index d9eb2b286438..c59cbb8cbdd7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -514,6 +514,18 @@ static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
 	struct iwl_phy_cfg_cmd phy_cfg_cmd;
 	enum iwl_ucode_type ucode_type = mvm->fwrt.cur_fw_img;
 
+	if (iwl_mvm_has_unified_ucode(mvm) &&
+	    !mvm->trans->cfg->tx_with_siso_diversity) {
+		return 0;
+	} else if (mvm->trans->cfg->tx_with_siso_diversity) {
+		/*
+		 * TODO: currently we don't set the antenna but letting the NIC
+		 * to decide which antenna to use. This should come from BIOS.
+		 */
+		phy_cfg_cmd.phy_cfg =
+			cpu_to_le32(FW_PHY_CFG_CHAIN_SAD_ENABLED);
+	}
+
 	/* Set parameters */
 	phy_cfg_cmd.phy_cfg = cpu_to_le32(iwl_mvm_get_phy_config(mvm));
 
@@ -1344,12 +1356,12 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 		ret = iwl_send_phy_db_data(mvm->phy_db);
 		if (ret)
 			goto error;
-
-		ret = iwl_send_phy_cfg_cmd(mvm);
-		if (ret)
-			goto error;
 	}
 
+	ret = iwl_send_phy_cfg_cmd(mvm);
+	if (ret)
+		goto error;
+
 	ret = iwl_mvm_send_bt_init_conf(mvm);
 	if (ret)
 		goto error;
-- 
2.20.1


  parent reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200116164300.6705-1-sashal@kernel.org>
2020-01-16 16:39 ` [PATCH AUTOSEL 5.4 008/205] mt7601u: fix bbp version check in mt7601u_wait_bbp_ready Sasha Levin
2020-01-16 16:39 ` [PATCH AUTOSEL 5.4 018/205] cw1200: Fix a signedness bug in cw1200_load_firmware() Sasha Levin
2020-01-16 16:39 ` [PATCH AUTOSEL 5.4 022/205] rtw88: fix beaconing mode rsvd_page memory violation issue Sasha Levin
2020-01-16 16:39 ` [PATCH AUTOSEL 5.4 023/205] rtw88: fix error handling when setup efuse info Sasha Levin
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 057/205] rtlwifi: Remove unnecessary NULL check in rtl_regd_init Sasha Levin
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 064/205] iwlwifi: mvm: consider ieee80211 station max amsdu value Sasha Levin
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 084/205] rtw88: fix potential read outside array boundary Sasha Levin
2020-01-16 16:41 ` [PATCH AUTOSEL 5.4 104/205] rt2800: remove errornous duplicate condition Sasha Levin
2020-01-16 16:41 ` Sasha Levin [this message]
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 159/205] mt76: mt76u: rely on usb_interface instead of usb_dev Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 181/205] ath9k: use iowrite32 over __raw_writel Sasha Levin

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