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Commit 21c1e830 authored by Yue Ma's avatar Yue Ma
Browse files

cnss2: Reject suspend if DRV subsystem is not connected 



Currently WLAN firmware does not support non-DRV suspend so reject
suspend if DRV subsystem is not connected.

Change-Id: Ia2ab84dce058fd2523e6b6ca1f0ade307533996f
Signed-off-by: default avatarYue Ma <yuem@codeaurora.org>
parent 5dc7d771

drivers/net/wireless/cnss2/pci.c

+17 −6
Original line number Diff line number Diff line
@@ -1864,11 +1864,17 @@ static int cnss_pci_suspend(struct device *dev) 
	if (!cnss_is_device_powered_on(plat_priv))

		goto out;



	set_bit(CNSS_IN_SUSPEND_RESUME, &plat_priv->driver_state);



	if (!test_bit(DISABLE_DRV, &plat_priv->ctrl_params.quirks))

	if (!test_bit(DISABLE_DRV, &plat_priv->ctrl_params.quirks)) {

		pci_priv->drv_connected_last =

			cnss_pci_get_drv_connected(pci_priv);

		if (!pci_priv->drv_connected_last) {

			cnss_pr_dbg("Firmware does not support non-DRV suspend, reject\n");

			ret = -EAGAIN;

			goto out;

		}

	}



	set_bit(CNSS_IN_SUSPEND_RESUME, &plat_priv->driver_state);



	ret = cnss_pci_suspend_driver(pci_priv);

	if (ret)
@@ -1988,11 +1994,16 @@ static int cnss_pci_runtime_suspend(struct device *dev) 
		return -EAGAIN;

	}



	cnss_pr_vdbg("Runtime suspend start\n");



	if (!test_bit(DISABLE_DRV, &plat_priv->ctrl_params.quirks))

	if (!test_bit(DISABLE_DRV, &plat_priv->ctrl_params.quirks)) {

		pci_priv->drv_connected_last =

			cnss_pci_get_drv_connected(pci_priv);

		if (!pci_priv->drv_connected_last) {

			cnss_pr_dbg("Firmware does not support non-DRV suspend, reject\n");

			return -EAGAIN;

		}

	}



	cnss_pr_vdbg("Runtime suspend start\n");



	driver_ops = pci_priv->driver_ops;

	if (driver_ops && driver_ops->runtime_ops &&