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From:   Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
To:     <ath11k@lists.infradead.org>
CC:     <linux-wireless@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <robh@kernel.org>, Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Subject: [PATCH v2 14/19] ath11k: Do not put HW in DBS mode for WCN6750
Date:   Sun, 16 Jan 2022 18:17:10 +0530
Message-ID: <1642337235-8618-15-git-send-email-quic_mpubbise@quicinc.com>
In-Reply-To: <1642337235-8618-1-git-send-email-quic_mpubbise@quicinc.com>
References: <1642337235-8618-1-git-send-email-quic_mpubbise@quicinc.com>
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Though WCN6750 is a single PDEV device, it is not a
DBS solution. So, do not put HW in DBS mode for WCN6750.

Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00573-QCAMSLSWPLZ-1
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
---
 drivers/net/wireless/ath/ath11k/core.c | 2 +-
 drivers/net/wireless/ath/ath11k/wmi.c  | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index f65347c..7208849 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -1084,7 +1084,7 @@ static int ath11k_core_start(struct ath11k_base *ab,
 	}
 
 	/* put hardware to DBS mode */
-	if (ab->hw_params.single_pdev_only) {
+	if (ab->hw_params.single_pdev_only && ab->hw_params.num_rxmda_per_pdev > 1) {
 		ret = ath11k_wmi_set_hw_mode(ab, WMI_HOST_HW_MODE_DBS);
 		if (ret) {
 			ath11k_err(ab, "failed to send dbs mode: %d\n", ret);
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 6b68ccf6..0cc8957 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021, Qualcomm Innovation Center, Inc. All rights reserved.
  */
 #include <linux/skbuff.h>
 #include <linux/ctype.h>
@@ -7851,7 +7852,7 @@ int ath11k_wmi_attach(struct ath11k_base *ab)
 	ab->wmi_ab.preferred_hw_mode = WMI_HOST_HW_MODE_MAX;
 
 	/* It's overwritten when service_ext_ready is handled */
-	if (ab->hw_params.single_pdev_only)
+	if (ab->hw_params.single_pdev_only && ab->hw_params.num_rxmda_per_pdev > 1)
 		ab->wmi_ab.preferred_hw_mode = WMI_HOST_HW_MODE_SINGLE;
 
 	/* TODO: Init remaining wmi soc resources required */
-- 
2.7.4