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Commit 8f0ea9ef authored by Yue Ma's avatar Yue Ma Committed by Gerrit - the friendly Code Review server
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cnss2: Do runtime PM resume before time sync update 



When time sync update happens, it has to make sure PCIe link
is resumed so that it is able to access the time sync related
registers.

Change-Id: Iaa44fef28f9b9f85bba86a795bf56fee04c4bd88
Signed-off-by: default avatarYue Ma <yuem@codeaurora.org>
parent 7dc5b097

drivers/net/wireless/cnss2/pci.c

+14 −0
Original line number Diff line number Diff line
@@ -583,8 +583,14 @@ static void cnss_pci_time_sync_work_hdlr(struct work_struct *work) 
	if (cnss_pci_is_device_down(&pci_priv->pci_dev->dev))

		return;



	if (cnss_pci_pm_runtime_get_sync(pci_priv) < 0)

		return;



	cnss_pci_update_timestamp(pci_priv);

	schedule_delayed_work(&pci_priv->time_sync_work, TIME_SYNC_PERIOD_JF);



	cnss_pci_pm_runtime_mark_last_busy(pci_priv);

	cnss_pci_pm_runtime_put_autosuspend(pci_priv);

}



static int cnss_pci_start_time_sync_update(struct cnss_pci_data *pci_priv)
@@ -1640,6 +1646,14 @@ int cnss_pci_pm_runtime_get(struct cnss_pci_data *pci_priv) 
	return pm_runtime_get(&pci_priv->pci_dev->dev);

}



int cnss_pci_pm_runtime_get_sync(struct cnss_pci_data *pci_priv)

{

	if (!pci_priv)

		return -ENODEV;



	return pm_runtime_get_sync(&pci_priv->pci_dev->dev);

}



void cnss_pci_pm_runtime_get_noresume(struct cnss_pci_data *pci_priv)

{

	if (!pci_priv)

drivers/net/wireless/cnss2/pci.h

+1 −0
Original line number Diff line number Diff line
@@ -157,6 +157,7 @@ void cnss_pci_pm_runtime_show_usage_count(struct cnss_pci_data *pci_priv); 
int cnss_pci_pm_request_resume(struct cnss_pci_data *pci_priv);

int cnss_pci_pm_runtime_resume(struct cnss_pci_data *pci_priv);

int cnss_pci_pm_runtime_get(struct cnss_pci_data *pci_priv);

int cnss_pci_pm_runtime_get_sync(struct cnss_pci_data *pci_priv);

void cnss_pci_pm_runtime_get_noresume(struct cnss_pci_data *pci_priv);

int cnss_pci_pm_runtime_put_autosuspend(struct cnss_pci_data *pci_priv);

void cnss_pci_pm_runtime_put_noidle(struct cnss_pci_data *pci_priv);