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Commit 41f0ad0d authored by Manikandan Mohan's avatar Manikandan Mohan Committed by Hemant Kumar
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cnss2: Disable LPASS full power collapse on DRV suspend 



Disable LPASS full power collapse on DRV suspend for WLAN latency
requirement to access DDR over PCIE.

Change-Id: I6643916f80c2778daba33a13fc6d558b0bd84754
Signed-off-by: default avatarManikandan Mohan <manikand@codeaurora.org>
parent 7db2e7aa

drivers/net/wireless/cnss2/pci.c

+3 −1
Original line number Diff line number Diff line
@@ -710,6 +710,7 @@ static int cnss_set_pci_link(struct cnss_pci_data *pci_priv, bool link_up) 
	struct pci_dev *pci_dev = pci_priv->pci_dev;

	enum msm_pcie_pm_opt pm_ops;

	int retry = 0;

	u32 pm_options = PM_OPTIONS_DEFAULT;



	cnss_pr_vdbg("%s PCI link\n", link_up ? "Resuming" : "Suspending");
@@ -719,6 +720,7 @@ static int cnss_set_pci_link(struct cnss_pci_data *pci_priv, bool link_up) 
		if (pci_priv->drv_connected_last) {

			cnss_pr_vdbg("Use PCIe DRV suspend\n");

			pm_ops = MSM_PCIE_DRV_SUSPEND;

			pm_options |= MSM_PCIE_CONFIG_NO_DRV_PC;

			cnss_set_pci_link_status(pci_priv, PCI_GEN1);

		} else {

			pm_ops = MSM_PCIE_SUSPEND;
@@ -727,7 +729,7 @@ static int cnss_set_pci_link(struct cnss_pci_data *pci_priv, bool link_up) 


retry:

	ret = msm_pcie_pm_control(pm_ops, pci_dev->bus->number, pci_dev,

				  NULL, PM_OPTIONS_DEFAULT);

				  NULL, pm_options);

	if (ret) {

		cnss_pr_err("Failed to %s PCI link with default option, err = %d\n",

			    link_up ? "resume" : "suspend", ret);