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Commit 5c6010fb authored by Yue Ma's avatar Yue Ma
Browse files

cnss2: Add boot support for QCA6290 



This is the initial change to support boot for QCA6290 Wi-Fi chipset.
It adds powerup and shutdown hooks for the chipset.

Change-Id: I0182f8ae60dcaf95db1759bcc4cc5f670a7e9138
Signed-off-by: default avatarYue Ma <yuem@codeaurora.org>
parent 4fa286af

drivers/net/wireless/cnss2/main.c

+87 −0
Original line number Diff line number Diff line
@@ -598,6 +598,91 @@ static void cnss_qca6174_crash_shutdown(struct cnss_plat_data *plat_priv) 
	plat_priv->driver_ops->crash_shutdown(pci_priv->pci_dev);

}



static int cnss_qca6290_powerup(struct cnss_plat_data *plat_priv)

{

	int ret = 0;

	struct cnss_pci_data *pci_priv = plat_priv->bus_priv;



	if (!pci_priv)

		return -ENODEV;



	if (!plat_priv->driver_ops)

		return -EINVAL;



	ret = cnss_power_on_device(plat_priv);

	if (ret) {

		cnss_pr_err("Failed to power on device, err = %d\n", ret);

		goto out;

	}



	ret = cnss_resume_pci_link(pci_priv);

	if (ret) {

		cnss_pr_err("Failed to resume PCI link, err = %d\n", ret);

		goto power_off;

	}



	if (plat_priv->driver_status == CNSS_LOAD_UNLOAD) {

		ret = plat_priv->driver_ops->probe(pci_priv->pci_dev,

						   pci_priv->pci_device_id);

		if (ret) {

			cnss_pr_err("Failed to probe host driver, err = %d\n",

				    ret);

			goto suspend_link;

		}

	} else if (plat_priv->recovery_in_progress) {

		ret = plat_priv->driver_ops->reinit(pci_priv->pci_dev,

						    pci_priv->pci_device_id);

		if (ret) {

			cnss_pr_err("Failed to reinit host driver, err = %d\n",

				    ret);

			goto suspend_link;

		}

		plat_priv->recovery_in_progress = false;

	} else {

		cnss_pr_err("Driver state is not correct to power up!\n");

		ret = -EINVAL;

		goto suspend_link;

	}

	return 0;



suspend_link:

	cnss_suspend_pci_link(pci_priv);

power_off:

	cnss_power_off_device(plat_priv);

out:

	return ret;

}



static int cnss_qca6290_shutdown(struct cnss_plat_data *plat_priv)

{

	int ret = 0;

	struct cnss_pci_data *pci_priv = plat_priv->bus_priv;



	if (!pci_priv)

		return -ENODEV;



	if (!plat_priv->driver_ops)

		return -EINVAL;



	if (plat_priv->driver_status == CNSS_LOAD_UNLOAD) {

		cnss_request_bus_bandwidth(CNSS_BUS_WIDTH_NONE);

		plat_priv->driver_ops->remove(pci_priv->pci_dev);

		cnss_pci_set_monitor_wake_intr(pci_priv, false);

		cnss_pci_set_auto_suspended(pci_priv, 0);

	} else {

		plat_priv->recovery_in_progress = true;

		plat_priv->driver_ops->shutdown(pci_priv->pci_dev);

	}



	ret = cnss_suspend_pci_link(pci_priv);

	if (ret)

		cnss_pr_err("Failed to suspend PCI link, err = %d\n", ret);



	cnss_power_off_device(plat_priv);



	return ret;

}



static int cnss_powerup(const struct subsys_desc *subsys_desc)

{

	int ret = 0;
@@ -613,6 +698,7 @@ static int cnss_powerup(const struct subsys_desc *subsys_desc) 
		ret = cnss_qca6174_powerup(plat_priv);

		break;

	case QCA6290_DEVICE_ID:

		ret = cnss_qca6290_powerup(plat_priv);

		break;

	default:

		cnss_pr_err("Unknown device_id found: 0x%lx\n",
@@ -638,6 +724,7 @@ static int cnss_shutdown(const struct subsys_desc *subsys_desc, bool force_stop) 
		ret = cnss_qca6174_shutdown(plat_priv);

		break;

	case QCA6290_DEVICE_ID:

		ret = cnss_qca6290_shutdown(plat_priv);

		break;

	default:

		cnss_pr_err("Unknown device_id found: 0x%lx\n",