Merge tag 'usb-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB and Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver changes for
  5.12-rc1.

  It's been an active set of development in these subsystems for the
  past few months:

   - loads of typec features added for new hardware

   - xhci features and bugfixes

   - dwc3 features added for more hardware support

   - dwc2 fixes and new hardware support

   - cdns3 driver updates for more hardware support

   - gadget driver cleanups and minor fixes

   - usb-serial fixes, new driver, and more devices supported

   - thunderbolt feature additions for new hardware

   - lots of other tiny fixups and additions

  The chrome driver changes are in here as well, as they depended on
  some of the typec changes, and the maintainer acked them.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (300 commits)
  dt-bindings: usb: mediatek: musb: add mt8516 compatbile
  dt-bindings: usb: mtk-xhci: add compatible for mt2701 and mt7623
  dt-bindings: usb: mtk-xhci: add optional assigned clock properties
  Documentation: connector: Update the description of sink-vdos
  usb: misc: usb3503: Fix logic in usb3503_init()
  dt-bindings: usb: usb-device: fix typo in required properties
  usb: Replace lkml.org links with lore
  dt-bindings: usb: dwc3: add description for rk3328
  dt-bindings: usb: convert rockchip,dwc3.txt to yaml
  usb: quirks: add quirk to start video capture on ELMO L-12F document camera reliable
  USB: quirks: sort quirk entries
  USB: serial: drop bogus to_usb_serial_port() checks
  USB: serial: make remove callback return void
  USB: serial: drop if with an always false condition
  usb: gadget: Assign boolean values to a bool variable
  usb: typec: tcpm: Get Sink VDO from fwnode
  dt-bindings: connector: Add SVDM VDO properties
  usb: typec: displayport: Fill the negotiated SVDM Version in the header
  usb: typec: ucsi: Determine common SVDM Version
  usb: typec: tcpm: Determine common SVDM Version
  ...

1 files changed, 315 insertions, 0 deletions

diff --git a/drivers/usb/cdns3/cdns3-plat.c b/drivers/usb/cdns3/cdns3-plat.c
new file mode 100644
index 000000000000..4b18e1c6a4bb
--- /dev/null
+++ b/drivers/usb/cdns3/cdns3-plat.c
@@ -0,0 +1,315 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Cadence USBSS DRD Driver.
+ *
+ * Copyright (C) 2018-2020 Cadence.
+ * Copyright (C) 2017-2018 NXP
+ * Copyright (C) 2019 Texas Instruments
+ *
+ *
+ * Author: Peter Chen <peter.chen@nxp.com>
+ *         Pawel Laszczak <pawell@cadence.com>
+ *         Roger Quadros <rogerq@ti.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+
+#include "core.h"
+#include "gadget-export.h"
+
+static int set_phy_power_on(struct cdns *cdns)
+{
+	int ret;
+
+	ret = phy_power_on(cdns->usb2_phy);
+	if (ret)
+		return ret;
+
+	ret = phy_power_on(cdns->usb3_phy);
+	if (ret)
+		phy_power_off(cdns->usb2_phy);
+
+	return ret;
+}
+
+static void set_phy_power_off(struct cdns *cdns)
+{
+	phy_power_off(cdns->usb3_phy);
+	phy_power_off(cdns->usb2_phy);
+}
+
+/**
+ * cdns3_plat_probe - probe for cdns3 core device
+ * @pdev: Pointer to cdns3 core platform device
+ *
+ * Returns 0 on success otherwise negative errno
+ */
+static int cdns3_plat_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource	*res;
+	struct cdns *cdns;
+	void __iomem *regs;
+	int ret;
+
+	cdns = devm_kzalloc(dev, sizeof(*cdns), GFP_KERNEL);
+	if (!cdns)
+		return -ENOMEM;
+
+	cdns->dev = dev;
+	cdns->pdata = dev_get_platdata(dev);
+
+	platform_set_drvdata(pdev, cdns);
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "host");
+	if (!res) {
+		dev_err(dev, "missing host IRQ\n");
+		return -ENODEV;
+	}
+
+	cdns->xhci_res[0] = *res;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "xhci");
+	if (!res) {
+		dev_err(dev, "couldn't get xhci resource\n");
+		return -ENXIO;
+	}
+
+	cdns->xhci_res[1] = *res;
+
+	cdns->dev_irq = platform_get_irq_byname(pdev, "peripheral");
+
+	if (cdns->dev_irq < 0)
+		return cdns->dev_irq;
+
+	regs = devm_platform_ioremap_resource_byname(pdev, "dev");
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+	cdns->dev_regs	= regs;
+
+	cdns->otg_irq = platform_get_irq_byname(pdev, "otg");
+	if (cdns->otg_irq < 0)
+		return cdns->otg_irq;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "otg");
+	if (!res) {
+		dev_err(dev, "couldn't get otg resource\n");
+		return -ENXIO;
+	}
+
+	cdns->phyrst_a_enable = device_property_read_bool(dev, "cdns,phyrst-a-enable");
+
+	cdns->otg_res = *res;
+
+	cdns->wakeup_irq = platform_get_irq_byname_optional(pdev, "wakeup");
+	if (cdns->wakeup_irq == -EPROBE_DEFER)
+		return cdns->wakeup_irq;
+	else if (cdns->wakeup_irq == 0)
+		return -EINVAL;
+
+	if (cdns->wakeup_irq < 0) {
+		dev_dbg(dev, "couldn't get wakeup irq\n");
+		cdns->wakeup_irq = 0x0;
+	}
+
+	cdns->usb2_phy = devm_phy_optional_get(dev, "cdns3,usb2-phy");
+	if (IS_ERR(cdns->usb2_phy))
+		return PTR_ERR(cdns->usb2_phy);
+
+	ret = phy_init(cdns->usb2_phy);
+	if (ret)
+		return ret;
+
+	cdns->usb3_phy = devm_phy_optional_get(dev, "cdns3,usb3-phy");
+	if (IS_ERR(cdns->usb3_phy))
+		return PTR_ERR(cdns->usb3_phy);
+
+	ret = phy_init(cdns->usb3_phy);
+	if (ret)
+		goto err_phy3_init;
+
+	ret = set_phy_power_on(cdns);
+	if (ret)
+		goto err_phy_power_on;
+
+	cdns->gadget_init = cdns3_gadget_init;
+
+	ret = cdns_init(cdns);
+	if (ret)
+		goto err_cdns_init;
+
+	device_set_wakeup_capable(dev, true);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+	if (!(cdns->pdata && (cdns->pdata->quirks & CDNS3_DEFAULT_PM_RUNTIME_ALLOW)))
+		pm_runtime_forbid(dev);
+
+	/*
+	 * The controller needs less time between bus and controller suspend,
+	 * and we also needs a small delay to avoid frequently entering low
+	 * power mode.
+	 */
+	pm_runtime_set_autosuspend_delay(dev, 20);
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_use_autosuspend(dev);
+
+	return 0;
+
+err_cdns_init:
+	set_phy_power_off(cdns);
+err_phy_power_on:
+	phy_exit(cdns->usb3_phy);
+err_phy3_init:
+	phy_exit(cdns->usb2_phy);
+
+	return ret;
+}
+
+/**
+ * cdns3_remove - unbind drd driver and clean up
+ * @pdev: Pointer to Linux platform device
+ *
+ * Returns 0 on success otherwise negative errno
+ */
+static int cdns3_plat_remove(struct platform_device *pdev)
+{
+	struct cdns *cdns = platform_get_drvdata(pdev);
+	struct device *dev = cdns->dev;
+
+	pm_runtime_get_sync(dev);
+	pm_runtime_disable(dev);
+	pm_runtime_put_noidle(dev);
+	cdns_remove(cdns);
+	set_phy_power_off(cdns);
+	phy_exit(cdns->usb2_phy);
+	phy_exit(cdns->usb3_phy);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int cdns3_set_platform_suspend(struct device *dev,
+				      bool suspend, bool wakeup)
+{
+	struct cdns *cdns = dev_get_drvdata(dev);
+	int ret = 0;
+
+	if (cdns->pdata && cdns->pdata->platform_suspend)
+		ret = cdns->pdata->platform_suspend(dev, suspend, wakeup);
+
+	return ret;
+}
+
+static int cdns3_controller_suspend(struct device *dev, pm_message_t msg)
+{
+	struct cdns *cdns = dev_get_drvdata(dev);
+	bool wakeup;
+	unsigned long flags;
+
+	if (cdns->in_lpm)
+		return 0;
+
+	if (PMSG_IS_AUTO(msg))
+		wakeup = true;
+	else
+		wakeup = device_may_wakeup(dev);
+
+	cdns3_set_platform_suspend(cdns->dev, true, wakeup);
+	set_phy_power_off(cdns);
+	spin_lock_irqsave(&cdns->lock, flags);
+	cdns->in_lpm = true;
+	spin_unlock_irqrestore(&cdns->lock, flags);
+	dev_dbg(cdns->dev, "%s ends\n", __func__);
+
+	return 0;
+}
+
+static int cdns3_controller_resume(struct device *dev, pm_message_t msg)
+{
+	struct cdns *cdns = dev_get_drvdata(dev);
+	int ret;
+	unsigned long flags;
+
+	if (!cdns->in_lpm)
+		return 0;
+
+	ret = set_phy_power_on(cdns);
+	if (ret)
+		return ret;
+
+	cdns3_set_platform_suspend(cdns->dev, false, false);
+
+	spin_lock_irqsave(&cdns->lock, flags);
+	cdns_resume(cdns, !PMSG_IS_AUTO(msg));
+	cdns->in_lpm = false;
+	spin_unlock_irqrestore(&cdns->lock, flags);
+	if (cdns->wakeup_pending) {
+		cdns->wakeup_pending = false;
+		enable_irq(cdns->wakeup_irq);
+	}
+	dev_dbg(cdns->dev, "%s ends\n", __func__);
+
+	return ret;
+}
+
+static int cdns3_plat_runtime_suspend(struct device *dev)
+{
+	return cdns3_controller_suspend(dev, PMSG_AUTO_SUSPEND);
+}
+
+static int cdns3_plat_runtime_resume(struct device *dev)
+{
+	return cdns3_controller_resume(dev, PMSG_AUTO_RESUME);
+}
+
+#ifdef CONFIG_PM_SLEEP
+
+static int cdns3_plat_suspend(struct device *dev)
+{
+	struct cdns *cdns = dev_get_drvdata(dev);
+
+	cdns_suspend(cdns);
+
+	return cdns3_controller_suspend(dev, PMSG_SUSPEND);
+}
+
+static int cdns3_plat_resume(struct device *dev)
+{
+	return cdns3_controller_resume(dev, PMSG_RESUME);
+}
+#endif /* CONFIG_PM_SLEEP */
+#endif /* CONFIG_PM */
+
+static const struct dev_pm_ops cdns3_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(cdns3_plat_suspend, cdns3_plat_resume)
+	SET_RUNTIME_PM_OPS(cdns3_plat_runtime_suspend,
+			   cdns3_plat_runtime_resume, NULL)
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id of_cdns3_match[] = {
+	{ .compatible = "cdns,usb3" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, of_cdns3_match);
+#endif
+
+static struct platform_driver cdns3_driver = {
+	.probe		= cdns3_plat_probe,
+	.remove		= cdns3_plat_remove,
+	.driver		= {
+		.name	= "cdns-usb3",
+		.of_match_table	= of_match_ptr(of_cdns3_match),
+		.pm	= &cdns3_pm_ops,
+	},
+};
+
+module_platform_driver(cdns3_driver);
+
+MODULE_ALIAS("platform:cdns3");
+MODULE_AUTHOR("Pawel Laszczak <pawell@cadence.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Cadence USB3 DRD Controller Driver");