1 files changed, 48 insertions, 0 deletions
diff --git a/cnss2/pci_platform_google.c b/cnss2/pci_platform_google.c
index 44d0638..0585ceb 100644
--- a/cnss2/pci_platform_google.c
+++ b/cnss2/pci_platform_google.c
@@ -269,3 +269,51 @@ void crash_info_handler(u8 *info)
 	strncpy(crash_info, info, string_len);
 	crash_info[string_len] = '\0';
 }
+
+int exynos_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);
+	int ret;
+
+	if (!pci_priv) {
+		cnss_pr_err("pci_priv is NULL\n");
+		return -ENODEV;
+	}
+
+	if (pci_priv->pci_link_state == PCI_LINK_DOWN) {
+		cnss_pr_err("PCIe link is in suspend state\n");
+		return -EIO;
+	}
+
+	if (pci_priv->pci_link_down_ind) {
+		cnss_pr_err("PCIe link is down\n");
+		return -EIO;
+	}
+
+	ret = exynos_pcie_rc_l1ss_ctrl(0, PCIE_L1SS_CTRL_WIFI, pci_priv->plat_priv->rc_num);
+	return ret;
+}
+
+void exynos_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 in suspend state\n");
+		return;
+	}
+
+	if (pci_priv->pci_link_down_ind) {
+		cnss_pr_err("PCIe link is down\n");
+		return;
+	}
+
+	exynos_pcie_rc_l1ss_ctrl(1, PCIE_L1SS_CTRL_WIFI, pci_priv->plat_priv->rc_num);
+}