mirror of
https://github.com/Telecominfraproject/wlan-ap.git
synced 2025-12-21 19:31:55 +00:00
150 lines
6.0 KiB
Diff
150 lines
6.0 KiB
Diff
From 64f2a21dd6358addcf27d391d4c217e958c7014a Mon Sep 17 00:00:00 2001
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From: Seevalamuthu Mariappan <seevalam@codeaurora.org>
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Date: Wed, 14 Apr 2021 15:31:27 +0530
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Subject: [PATCH] ath11k: add hw_param for wakeup_mhi
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wakeup mhi is needed before pci_read/write only for QCA6390.
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Since wakeup & release mhi is enabled for all platforms,
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below mhi assert is seen in QCN9074.
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Disable wakeup/release mhi using hw_param for other hardwares.
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Kernel panic - not syncing: dev_wake != 0
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CPU: 2 PID: 13535 Comm: procd Not tainted 4.4.60 #1
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Hardware name: Generic DT based system
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[<80316dac>] (unwind_backtrace) from [<80313700>] (show_stack+0x10/0x14)
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[<80313700>] (show_stack) from [<805135dc>] (dump_stack+0x7c/0x9c)
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[<805135dc>] (dump_stack) from [<8032136c>] (panic+0x84/0x1f8)
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[<8032136c>] (panic) from [<80549b24>] (mhi_pm_disable_transition+0x3b8/0x5b8)
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[<80549b24>] (mhi_pm_disable_transition) from [<80549ddc>] (mhi_power_down+0xb8/0x100)
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[<80549ddc>] (mhi_power_down) from [<7f5242b0>] (ath11k_mhi_op_status_cb+0x284/0x3ac [ath11k_pci])
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[E][__mhi_device_get_sync] Did not enter M0 state, cur_state:RESET pm_state:SHUTDOWN Process
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[E][__mhi_device_get_sync] Did not enter M0 state, cur_state:RESET pm_state:SHUTDOWN Process
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[E][__mhi_device_get_sync] Did not enter M0 state, cur_state:RESET pm_state:SHUTDOWN Process
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[<7f5242b0>] (ath11k_mhi_op_status_cb [ath11k_pci]) from [<7f524878>] (ath11k_mhi_stop+0x10/0x20 [ath11k_pci])
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[<7f524878>] (ath11k_mhi_stop [ath11k_pci]) from [<7f525b94>] (ath11k_pci_power_down+0x54/0x90 [ath11k_pci])
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[<7f525b94>] (ath11k_pci_power_down [ath11k_pci]) from [<8056b2a8>] (pci_device_shutdown+0x30/0x44)
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[<8056b2a8>] (pci_device_shutdown) from [<805cfa0c>] (device_shutdown+0x124/0x174)
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[<805cfa0c>] (device_shutdown) from [<8033aaa4>] (kernel_restart+0xc/0x50)
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[<8033aaa4>] (kernel_restart) from [<8033ada8>] (SyS_reboot+0x178/0x1ec)
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[<8033ada8>] (SyS_reboot) from [<80301b80>] (ret_fast_syscall+0x0/0x34)
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Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
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---
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drivers/net/wireless/ath/ath11k/core.c | 6 ++++++
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drivers/net/wireless/ath/ath11k/hw.h | 1 +
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drivers/net/wireless/ath/ath11k/pci.c | 12 ++++++++----
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3 files changed, 15 insertions(+), 4 deletions(-)
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diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
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index 7b446e0..7691859 100644
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--- a/drivers/net/wireless/ath/ath11k/core.c
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+++ b/drivers/net/wireless/ath/ath11k/core.c
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@@ -110,6 +110,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
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.cfr_stream_buf_size = 8500,
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/* In addition to TCL ring use TCL_CMD ring also for tx */
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.max_tx_ring = DP_TCL_NUM_RING_MAX + 1,
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+ .wakeup_mhi = false,
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},
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{
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.hw_rev = ATH11K_HW_IPQ6018_HW10,
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@@ -161,6 +162,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
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.is_qdss_support = false,
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/* In addition to TCL ring use TCL_CMD ring also for tx */
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.max_tx_ring = DP_TCL_NUM_RING_MAX + 1,
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+ .wakeup_mhi = false,
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},
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{
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.name = "qca6390 hw2.0",
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@@ -206,6 +208,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
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.fwmem_mode_change = false,
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.is_qdss_support = false,
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.max_tx_ring = 1,
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+ .wakeup_mhi = true,
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},
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{
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.name = "qcn9074 hw1.0",
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@@ -263,6 +266,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
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CFR_DATA_MAX_LEN_QCN9074,
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/* In addition to TCL ring use TCL_CMD ring also for tx */
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.max_tx_ring = DP_TCL_NUM_RING_MAX + 1,
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+ .wakeup_mhi = false,
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},
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{
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.hw_rev = ATH11K_HW_IPQ5018,
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@@ -313,6 +317,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
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.cold_boot_calib = true,
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.is_qdss_support = false,
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.max_tx_ring = DP_TCL_NUM_RING_MAX,
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+ .wakeup_mhi = false,
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},
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{
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.hw_rev = ATH11K_HW_QCN6122,
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@@ -364,6 +369,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
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.fwmem_mode_change = false,
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.is_qdss_support = true,
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.max_tx_ring = DP_TCL_NUM_RING_MAX,
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+ .wakeup_mhi = false,
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},
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};
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diff --git a/drivers/net/wireless/ath/ath11k/hw.h b/drivers/net/wireless/ath/ath11k/hw.h
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index 80723ca..b99ecb5 100644
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--- a/drivers/net/wireless/ath/ath11k/hw.h
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+++ b/drivers/net/wireless/ath/ath11k/hw.h
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@@ -208,6 +208,7 @@ struct ath11k_hw_params {
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bool fwmem_mode_change;
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bool is_qdss_support;
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bool cfr_support;
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+ bool wakeup_mhi;
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u32 cfr_dma_hdr_size;
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u32 cfr_num_stream_bufs;
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u32 cfr_stream_buf_size;
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diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c
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index 6b138ab..494888e 100644
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--- a/drivers/net/wireless/ath/ath11k/pci.c
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+++ b/drivers/net/wireless/ath/ath11k/pci.c
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@@ -169,7 +169,8 @@ void ath11k_pci_write32(struct ath11k_base *ab, u32 offset, u32 value)
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/* for offset beyond BAR + 4K - 32, may
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* need to wakeup MHI to access.
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*/
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- if (test_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags) &&
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+ if (ab->hw_params.wakeup_mhi &&
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+ test_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags) &&
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offset >= ACCESS_ALWAYS_OFF && ab_pci->mhi_ctrl)
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mhi_device_get_sync(ab_pci->mhi_ctrl->mhi_dev);
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@@ -193,7 +194,8 @@ void ath11k_pci_write32(struct ath11k_base *ab, u32 offset, u32 value)
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}
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}
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- if (test_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags) &&
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+ if (ab->hw_params.wakeup_mhi &&
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+ test_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags) &&
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offset >= ACCESS_ALWAYS_OFF && ab_pci->mhi_ctrl)
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mhi_device_put(ab_pci->mhi_ctrl->mhi_dev);
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}
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@@ -207,7 +209,8 @@ u32 ath11k_pci_read32(struct ath11k_base *ab, u32 offset)
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/* for offset beyond BAR + 4K - 32, may
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* need to wakeup MHI to access.
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*/
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- if (test_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags) &&
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+ if (ab->hw_params.wakeup_mhi &&
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+ test_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags) &&
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offset >= ACCESS_ALWAYS_OFF && ab_pci->mhi_ctrl)
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mhi_device_get_sync(ab_pci->mhi_ctrl->mhi_dev);
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@@ -231,7 +234,8 @@ u32 ath11k_pci_read32(struct ath11k_base *ab, u32 offset)
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}
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}
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- if (test_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags) &&
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+ if (ab->hw_params.wakeup_mhi &&
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+ test_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags) &&
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offset >= ACCESS_ALWAYS_OFF && ab_pci->mhi_ctrl)
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mhi_device_put(ab_pci->mhi_ctrl->mhi_dev);
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--
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2.7.4
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