diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath12k/pci.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath12k/pci.c | 47 |
1 files changed, 38 insertions, 9 deletions
diff --git a/drivers/net/wireless/ath/ath12k/pci.c b/drivers/net/wireless/ath/ath12k/pci.c index ae7f6083c9fc..d32637b0113d 100644 --- a/drivers/net/wireless/ath/ath12k/pci.c +++ b/drivers/net/wireless/ath/ath12k/pci.c @@ -119,6 +119,30 @@ static const char *irq_name[ATH12K_IRQ_NUM_MAX] = { "tcl2host-status-ring", }; +static int ath12k_pci_bus_wake_up(struct ath12k_base *ab) +{ + struct ath12k_pci *ab_pci = ath12k_pci_priv(ab); + + return mhi_device_get_sync(ab_pci->mhi_ctrl->mhi_dev); +} + +static void ath12k_pci_bus_release(struct ath12k_base *ab) +{ + struct ath12k_pci *ab_pci = ath12k_pci_priv(ab); + + mhi_device_put(ab_pci->mhi_ctrl->mhi_dev); +} + +static const struct ath12k_pci_ops ath12k_pci_ops_qcn9274 = { + .wakeup = NULL, + .release = NULL, +}; + +static const struct ath12k_pci_ops ath12k_pci_ops_wcn7850 = { + .wakeup = ath12k_pci_bus_wake_up, + .release = ath12k_pci_bus_release, +}; + static void ath12k_pci_select_window(struct ath12k_pci *ab_pci, u32 offset) { struct ath12k_base *ab = ab_pci->ab; @@ -989,13 +1013,14 @@ u32 ath12k_pci_read32(struct ath12k_base *ab, u32 offset) { struct ath12k_pci *ab_pci = ath12k_pci_priv(ab); u32 val, window_start; + int ret = 0; /* for offset beyond BAR + 4K - 32, may * need to wakeup MHI to access. */ if (test_bit(ATH12K_PCI_FLAG_INIT_DONE, &ab_pci->flags) && - offset >= ACCESS_ALWAYS_OFF) - mhi_device_get_sync(ab_pci->mhi_ctrl->mhi_dev); + offset >= ACCESS_ALWAYS_OFF && ab_pci->pci_ops->wakeup) + ret = ab_pci->pci_ops->wakeup(ab); if (offset < WINDOW_START) { val = ioread32(ab->mem + offset); @@ -1023,9 +1048,9 @@ u32 ath12k_pci_read32(struct ath12k_base *ab, u32 offset) } if (test_bit(ATH12K_PCI_FLAG_INIT_DONE, &ab_pci->flags) && - offset >= ACCESS_ALWAYS_OFF) - mhi_device_put(ab_pci->mhi_ctrl->mhi_dev); - + offset >= ACCESS_ALWAYS_OFF && ab_pci->pci_ops->release && + !ret) + ab_pci->pci_ops->release(ab); return val; } @@ -1033,13 +1058,14 @@ void ath12k_pci_write32(struct ath12k_base *ab, u32 offset, u32 value) { struct ath12k_pci *ab_pci = ath12k_pci_priv(ab); u32 window_start; + int ret = 0; /* for offset beyond BAR + 4K - 32, may * need to wakeup MHI to access. */ if (test_bit(ATH12K_PCI_FLAG_INIT_DONE, &ab_pci->flags) && - offset >= ACCESS_ALWAYS_OFF) - mhi_device_get_sync(ab_pci->mhi_ctrl->mhi_dev); + offset >= ACCESS_ALWAYS_OFF && ab_pci->pci_ops->wakeup) + ret = ab_pci->pci_ops->wakeup(ab); if (offset < WINDOW_START) { iowrite32(value, ab->mem + offset); @@ -1067,8 +1093,9 @@ void ath12k_pci_write32(struct ath12k_base *ab, u32 offset, u32 value) } if (test_bit(ATH12K_PCI_FLAG_INIT_DONE, &ab_pci->flags) && - offset >= ACCESS_ALWAYS_OFF) - mhi_device_put(ab_pci->mhi_ctrl->mhi_dev); + offset >= ACCESS_ALWAYS_OFF && ab_pci->pci_ops->release && + !ret) + ab_pci->pci_ops->release(ab); } int ath12k_pci_power_up(struct ath12k_base *ab) @@ -1182,6 +1209,7 @@ static int ath12k_pci_probe(struct pci_dev *pdev, case QCN9274_DEVICE_ID: ab_pci->msi_config = &ath12k_msi_config[0]; ab->static_window_map = true; + ab_pci->pci_ops = &ath12k_pci_ops_qcn9274; ath12k_pci_read_hw_version(ab, &soc_hw_version_major, &soc_hw_version_minor); switch (soc_hw_version_major) { @@ -1202,6 +1230,7 @@ static int ath12k_pci_probe(struct pci_dev *pdev, ab_pci->msi_config = &ath12k_msi_config[0]; ab->static_window_map = false; ab->hw_rev = ATH12K_HW_WCN7850_HW20; + ab_pci->pci_ops = &ath12k_pci_ops_wcn7850; break; default: |