A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-12 15:49:17 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge "cnss2: Check driver link state before prevent/allow PCIe L1"

Browse source
This commit is contained in:
qctecmdr 2020-04-11 21:14:46 -07:00 • committed by Gerrit - the friendly Code Review server
commit 916331668a
1 changed files with 32 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

32
drivers/net/wireless/cnss2/pci.c
View file

@ -828,6 +828,22 @@ out:
int cnss_pci_prevent_l1(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct cnss_pci_data *pci_priv = cnss_get_pci_priv(pci_dev);
if (!pci_priv) {
cnss_pr_err("pci_priv is NULL\n");
return -ENODEV;
}
if (pci_priv->pci_link_state == PCI_LINK_DOWN) {
cnss_pr_dbg("PCIe link is suspended\n");
return -EIO;
}
if (pci_priv->pci_link_down_ind) {
cnss_pr_err("PCIe link is down\n");
return -EIO;
}
return msm_pcie_prevent_l1(pci_dev);
}
@ -836,6 +852,22 @@ EXPORT_SYMBOL(cnss_pci_prevent_l1);
void cnss_pci_allow_l1(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct cnss_pci_data *pci_priv = cnss_get_pci_priv(pci_dev);
if (!pci_priv) {
cnss_pr_err("pci_priv is NULL\n");
return;
}
if (pci_priv->pci_link_state == PCI_LINK_DOWN) {
cnss_pr_dbg("PCIe link is suspended\n");
return;
}
if (pci_priv->pci_link_down_ind) {
cnss_pr_err("PCIe link is down\n");
return;
}
msm_pcie_allow_l1(pci_dev);
}