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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>, <mka@chromium.org>,
        Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Subject: [PATCH v6 3/9] ath11k: Add bus params for WCN6750
Date:   Wed, 27 Apr 2022 16:48:42 +0530
Message-ID: <20220427111848.9257-4-quic_mpubbise@quicinc.com>
In-Reply-To: <20220427111848.9257-1-quic_mpubbise@quicinc.com>
References: <20220427111848.9257-1-quic_mpubbise@quicinc.com>
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WCN6750 is a PCIe based solution that is attached to and enumerated
by the WPSS (Wireless Processor SubSystem) Q6 processor.

Though it is a PCIe device, since it is not attached to APSS processor
(Application Processor SubSystem), APSS will be unaware of such a decice
and hence it is registered to the APSS processor as a platform device(AHB).
Because of this hybrid nature, it is called as a hybrid bus device.

A new variable is defined in bus params to indicate the hybrid nature.
Add bus params for WCN6750.

Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-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/ahb.c  | 10 ++++++++++
 drivers/net/wireless/ath/ath11k/ahb.h  |  2 ++
 drivers/net/wireless/ath/ath11k/core.h |  1 +
 drivers/net/wireless/ath/ath11k/pci.c  |  1 +
 4 files changed, 14 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c
index f407d4af2074..cfdd415f0203 100644
--- a/drivers/net/wireless/ath/ath11k/ahb.c
+++ b/drivers/net/wireless/ath/ath11k/ahb.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021-2022, Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include <linux/module.h>
@@ -33,6 +34,15 @@ static const struct ath11k_bus_params ath11k_ahb_bus_params = {
 	.m3_fw_support = false,
 	.fixed_bdf_addr = true,
 	.fixed_mem_region = true,
+	.hybrid_bus_type = false,
+};
+
+const struct ath11k_bus_params ath11k_ahb_hybrid_bus_params = {
+	.mhi_support = false,
+	.m3_fw_support = false,
+	.fixed_bdf_addr = false,
+	.fixed_mem_region = false,
+	.hybrid_bus_type = true,
 };
 
 #define ATH11K_IRQ_CE0_OFFSET 4
diff --git a/drivers/net/wireless/ath/ath11k/ahb.h b/drivers/net/wireless/ath/ath11k/ahb.h
index 51e6e4a5f686..a276e3d1dff8 100644
--- a/drivers/net/wireless/ath/ath11k/ahb.h
+++ b/drivers/net/wireless/ath/ath11k/ahb.h
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021-2022, Qualcomm Innovation Center, Inc. All rights reserved.
  */
 #ifndef ATH11K_AHB_H
 #define ATH11K_AHB_H
@@ -9,6 +10,7 @@
 
 #define ATH11K_AHB_RECOVERY_TIMEOUT (3 * HZ)
 struct ath11k_base;
+extern const struct ath11k_bus_params ath11k_ahb_hybrid_bus_params;
 
 struct ath11k_ahb {
 	struct rproc *tgt_rproc;
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 8f775cdd0b93..51f313dd7f26 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -755,6 +755,7 @@ struct ath11k_bus_params {
 	bool fixed_bdf_addr;
 	bool fixed_mem_region;
 	bool static_window_map;
+	bool hybrid_bus_type;
 };
 
 struct ath11k_pci_ops {
diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c
index 024661a17008..ddd1e2de6a2e 100644
--- a/drivers/net/wireless/ath/ath11k/pci.c
+++ b/drivers/net/wireless/ath/ath11k/pci.c
@@ -120,6 +120,7 @@ static const struct ath11k_bus_params ath11k_pci_bus_params = {
 	.m3_fw_support = true,
 	.fixed_bdf_addr = false,
 	.fixed_mem_region = false,
+	.hybrid_bus_type = false,
 };
 
 static const struct ath11k_msi_config msi_config_one_msi = {
-- 
2.35.1