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cnss2: WAR to trigger self-recovery for link recover callback

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Add WAR to trigger self-recovery on receiving event callback
MSM_PCIE_EVENT_LINK_RECOVER. Skip call to force assert when
mhi resume -ETIMEDOUT.

Change-Id: I05d3b2889e1983bab2509c1db2a3e45fdfe484d3
Signed-off-by: Mohammed Siddiq <msiddiq@codeaurora.org>
This commit is contained in:
Mohammed Siddiq 2021-01-11 19:35:25 +05:30 • committed by Gerrit - the friendly Code Review server
commit 93cbb8df23
1 changed files with 22 additions and 2 deletions
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24
drivers/net/wireless/cnss2/pci.c
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@ -3023,6 +3023,8 @@ static void cnss_pci_event_cb(struct msm_pcie_notify *notify)
struct pci_dev *pci_dev;
struct cnss_pci_data *pci_priv;
struct device *dev;
struct cnss_plat_data *plat_priv = NULL;
int ret = 0;
if (!notify)
return;
@ -3037,6 +3039,23 @@ static void cnss_pci_event_cb(struct msm_pcie_notify *notify)
dev = &pci_priv->pci_dev->dev;
switch (notify->event) {
case MSM_PCIE_EVENT_LINK_RECOVER:
cnss_pr_dbg("PCI link recover callback\n");
plat_priv = pci_priv->plat_priv;
if (!plat_priv) {
cnss_pr_err("plat_priv is NULL\n");
return;
}
plat_priv->ctrl_params.quirks |= BIT(LINK_DOWN_SELF_RECOVERY);
ret = msm_pcie_pm_control(MSM_PCIE_HANDLE_LINKDOWN,
pci_dev->bus->number, pci_dev, NULL,
PM_OPTIONS_DEFAULT);
if (ret)
cnss_pci_handle_linkdown(pci_priv);
break;
case MSM_PCIE_EVENT_LINKDOWN:
cnss_pr_dbg("PCI link down event callback\n");
cnss_pci_handle_linkdown(pci_priv);
@ -3080,8 +3099,9 @@ static int cnss_reg_pci_event(struct cnss_pci_data *pci_priv)
struct msm_pcie_register_event *pci_event;
pci_event = &pci_priv->msm_pci_event;
pci_event->events = MSM_PCIE_EVENT_LINKDOWN |
MSM_PCIE_EVENT_WAKEUP;
pci_event->events = MSM_PCIE_EVENT_LINK_RECOVER |
MSM_PCIE_EVENT_LINKDOWN |
MSM_PCIE_EVENT_WAKEUP;
if (cnss_pci_is_drv_supported(pci_priv))
pci_event->events = pci_event->events |