evie/android_kernel_oneplus_msm8998
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Merge "cnss2: Add force wake support"

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Linux Build Service Account 2018-10-09 16:32:17 -07:00 • committed by Gerrit - the friendly Code Review server
commit 2690915ff3
2 changed files with 91 additions and 0 deletions
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88
drivers/net/wireless/cnss2/pci.c
View file

@ -1297,6 +1297,94 @@ int cnss_pm_request_resume(struct cnss_pci_data *pci_priv)
return pm_request_resume(&pci_dev->dev);
}
#ifdef CONFIG_CNSS_QCA6390
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);
#else
int cnss_pci_force_wake_request(struct device *dev)
{
return 0;
}
EXPORT_SYMBOL(cnss_pci_force_wake_request);
int cnss_pci_is_device_awake(struct device *dev)
{
return true;
}
EXPORT_SYMBOL(cnss_pci_is_device_awake);
int cnss_pci_force_wake_release(struct device *dev)
{
return 0;
}
EXPORT_SYMBOL(cnss_pci_force_wake_release);
#endif
int cnss_pci_alloc_fw_mem(struct cnss_pci_data *pci_priv)
{
struct cnss_plat_data *plat_priv = pci_priv->plat_priv;

3
include/net/cnss2.h
View file

@ -192,6 +192,9 @@ extern void cnss_lock_pm_sem(struct device *dev);
extern void cnss_release_pm_sem(struct device *dev);
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,