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cnss2: Prevent PCIE l1 substatus at MHI fast resume

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Prevent PCIE L1 substates while MHI fast resume to make
device not to enter any low power substates and allow l1
once mhi fast resume is completed.

Change-Id: Id92af704ce6f38ce13df25ef8be5d9c67b4b588a
Signed-off-by: Vivek Pernamitta <vpernami@codeaurora.org>
This commit is contained in:
Vivek Pernamitta 2020-12-23 12:00:10 +05:30
commit f1bdd75085
1 changed files with 5 additions and 2 deletions
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7
drivers/net/wireless/cnss2/pci.c
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@ -1381,10 +1381,13 @@ static int cnss_pci_set_mhi_state(struct cnss_pci_data *pci_priv,
break;
case CNSS_MHI_RESUME:
mutex_lock(&pci_priv->mhi_ctrl->pm_mutex);
if (pci_priv->drv_connected_last)
if (pci_priv->drv_connected_last) {
cnss_pci_prevent_l1(&pci_priv->pci_dev->dev);
ret = mhi_pm_fast_resume(pci_priv->mhi_ctrl, true);
else
cnss_pci_allow_l1(&pci_priv->pci_dev->dev);
} else {
ret = mhi_pm_resume(pci_priv->mhi_ctrl);
}
mutex_unlock(&pci_priv->mhi_ctrl->pm_mutex);
break;
case CNSS_MHI_TRIGGER_RDDM: