Merge "cnss2: Add force wake support" (116ede8d) · Commits · e / devices / android_kernel_xiaomi_sm6125

drivers/net/wireless/cnss2/pci.c

+68 −0

Original line number	Diff line number	Diff line
		@@ -1268,6 +1268,74 @@ int cnss_pm_request_resume(struct cnss_pci_data *pci_priv)
		return pm_request_resume(&pci_dev->dev);
		}

		int cnss_pci_force_wake_request(struct device *dev)
		{
		struct pci_dev *pci_dev = to_pci_dev(dev);
		struct cnss_pci_data *pci_priv = cnss_get_pci_priv(pci_dev);
		struct mhi_controller *mhi_ctrl;

		if (!pci_priv)
		return -ENODEV;

		if (pci_priv->device_id != QCA6390_DEVICE_ID)
		return 0;

		mhi_ctrl = pci_priv->mhi_ctrl;
		if (!mhi_ctrl)
		return -EINVAL;

		read_lock_bh(&mhi_ctrl->pm_lock);
		mhi_ctrl->wake_get(mhi_ctrl, true);
		read_unlock_bh(&mhi_ctrl->pm_lock);

		return 0;
		}
		EXPORT_SYMBOL(cnss_pci_force_wake_request);

		int cnss_pci_is_device_awake(struct device *dev)
		{
		struct pci_dev *pci_dev = to_pci_dev(dev);
		struct cnss_pci_data *pci_priv = cnss_get_pci_priv(pci_dev);
		struct mhi_controller *mhi_ctrl;

		if (!pci_priv)
		return -ENODEV;

		if (pci_priv->device_id != QCA6390_DEVICE_ID)
		return true;

		mhi_ctrl = pci_priv->mhi_ctrl;
		if (!mhi_ctrl)
		return -EINVAL;

		return mhi_ctrl->dev_state == MHI_STATE_M0 ? true : false;
		}
		EXPORT_SYMBOL(cnss_pci_is_device_awake);

		int cnss_pci_force_wake_release(struct device *dev)
		{
		struct pci_dev *pci_dev = to_pci_dev(dev);
		struct cnss_pci_data *pci_priv = cnss_get_pci_priv(pci_dev);
		struct mhi_controller *mhi_ctrl;

		if (!pci_priv)
		return -ENODEV;

		if (pci_priv->device_id != QCA6390_DEVICE_ID)
		return 0;

		mhi_ctrl = pci_priv->mhi_ctrl;
		if (!mhi_ctrl)
		return -EINVAL;

		read_lock_bh(&mhi_ctrl->pm_lock);
		mhi_ctrl->wake_put(mhi_ctrl, false);
		read_unlock_bh(&mhi_ctrl->pm_lock);

		return 0;
		}
		EXPORT_SYMBOL(cnss_pci_force_wake_release);

		int cnss_pci_alloc_fw_mem(struct cnss_pci_data *pci_priv)
		{
		struct cnss_plat_data *plat_priv = pci_priv->plat_priv;

include/net/cnss2.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -174,6 +174,9 @@ extern void cnss_release_pm_sem(struct device *dev);
		extern int cnss_wlan_pm_control(struct device *dev, bool vote);
		extern int cnss_auto_suspend(struct device *dev);
		extern int cnss_auto_resume(struct device *dev);
		extern int cnss_pci_force_wake_request(struct device *dev);
		extern int cnss_pci_is_device_awake(struct device *dev);
		extern int cnss_pci_force_wake_release(struct device *dev);
		extern int cnss_get_user_msi_assignment(struct device dev, char user_name,
		int *num_vectors,
		uint32_t *user_base_data,