Merge tag 'usb-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB and Thunderbolt driver updates from Greg KH:
 "Here is the large set of USB and Thunderbolt driver changes for
  6.2-rc1. Overall, thanks to the removal of a driver, more lines were
  removed than added, a nice change. Highlights include:

   - removal of the sisusbvga driver that was not used by anyone anymore

   - minor thunderbolt driver changes and tweaks

   - chipidea driver updates

   - usual set of typec driver features and hardware support added

   - musb minor driver fixes

   - fotg210 driver fixes, bringing that hardware back from the "dead"

   - minor dwc3 driver updates

   - addition, and then removal, of a list.h helper function for many
     USB and other subsystem drivers, that ended up breaking the build.
     That will come back for 6.3-rc1, it missed this merge window.

   - usual xhci updates and enhancements

   - usb-serial driver updates and support for new devices

   - other minor USB driver updates

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

* tag 'usb-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (153 commits)
  usb: gadget: uvc: Rename bmInterfaceFlags -> bmInterlaceFlags
  usb: dwc2: power on/off phy for peripheral mode in dual-role mode
  usb: dwc2: disable lpm feature on Rockchip SoCs
  dt-bindings: usb: mtk-xhci: add support for mt7986
  usb: dwc3: core: defer probe on ulpi_read_id timeout
  usb: ulpi: defer ulpi_register on ulpi_read_id timeout
  usb: misc: onboard_usb_hub: add Genesys Logic GL850G hub support
  dt-bindings: usb: Add binding for Genesys Logic GL850G hub controller
  dt-bindings: vendor-prefixes: add Genesys Logic
  usb: fotg210-udc: fix potential memory leak in fotg210_udc_probe()
  usb: typec: tipd: Set mode of operation for USB Type-C connector
  usb: gadget: udc: drop obsolete dependencies on COMPILE_TEST
  usb: musb: remove extra check in musb_gadget_vbus_draw
  usb: gadget: uvc: Prevent buffer overflow in setup handler
  usb: dwc3: qcom: Fix memory leak in dwc3_qcom_interconnect_init
  usb: typec: wusb3801: fix fwnode refcount leak in wusb3801_probe()
  usb: storage: Add check for kcalloc
  USB: sisusbvga: use module_usb_driver()
  USB: sisusbvga: rename sisusb.c to sisusbvga.c
  USB: sisusbvga: remove console support
  ...

1 files changed, 166 insertions, 0 deletions

diff --git a/drivers/usb/fotg210/fotg210-core.c b/drivers/usb/fotg210/fotg210-core.c
new file mode 100644
index 000000000000..8a54edf921ac
--- /dev/null
+++ b/drivers/usb/fotg210/fotg210-core.c
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Central probing code for the FOTG210 dual role driver
+ * We register one driver for the hardware and then we decide
+ * whether to proceed with probing the host or the peripheral
+ * driver.
+ */
+#include <linux/bitops.h>
+#include <linux/device.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/usb.h>
+#include <linux/usb/otg.h>
+
+#include "fotg210.h"
+
+/*
+ * Gemini-specific initialization function, only executed on the
+ * Gemini SoC using the global misc control register.
+ *
+ * The gemini USB blocks are connected to either Mini-A (host mode) or
+ * Mini-B (peripheral mode) plugs. There is no role switch support on the
+ * Gemini SoC, just either-or.
+ */
+#define GEMINI_GLOBAL_MISC_CTRL		0x30
+#define GEMINI_MISC_USB0_WAKEUP		BIT(14)
+#define GEMINI_MISC_USB1_WAKEUP		BIT(15)
+#define GEMINI_MISC_USB0_VBUS_ON	BIT(22)
+#define GEMINI_MISC_USB1_VBUS_ON	BIT(23)
+#define GEMINI_MISC_USB0_MINI_B		BIT(29)
+#define GEMINI_MISC_USB1_MINI_B		BIT(30)
+
+static int fotg210_gemini_init(struct device *dev, struct resource *res,
+			       enum usb_dr_mode mode)
+{
+	struct device_node *np = dev->of_node;
+	struct regmap *map;
+	bool wakeup;
+	u32 mask, val;
+	int ret;
+
+	map = syscon_regmap_lookup_by_phandle(np, "syscon");
+	if (IS_ERR(map)) {
+		dev_err(dev, "no syscon\n");
+		return PTR_ERR(map);
+	}
+	wakeup = of_property_read_bool(np, "wakeup-source");
+
+	/*
+	 * Figure out if this is USB0 or USB1 by simply checking the
+	 * physical base address.
+	 */
+	mask = 0;
+	if (res->start == 0x69000000) {
+		mask = GEMINI_MISC_USB1_VBUS_ON | GEMINI_MISC_USB1_MINI_B |
+			GEMINI_MISC_USB1_WAKEUP;
+		if (mode == USB_DR_MODE_HOST)
+			val = GEMINI_MISC_USB1_VBUS_ON;
+		else
+			val = GEMINI_MISC_USB1_MINI_B;
+		if (wakeup)
+			val |= GEMINI_MISC_USB1_WAKEUP;
+	} else {
+		mask = GEMINI_MISC_USB0_VBUS_ON | GEMINI_MISC_USB0_MINI_B |
+			GEMINI_MISC_USB0_WAKEUP;
+		if (mode == USB_DR_MODE_HOST)
+			val = GEMINI_MISC_USB0_VBUS_ON;
+		else
+			val = GEMINI_MISC_USB0_MINI_B;
+		if (wakeup)
+			val |= GEMINI_MISC_USB0_WAKEUP;
+	}
+
+	ret = regmap_update_bits(map, GEMINI_GLOBAL_MISC_CTRL, mask, val);
+	if (ret) {
+		dev_err(dev, "failed to initialize Gemini PHY\n");
+		return ret;
+	}
+
+	dev_info(dev, "initialized Gemini PHY in %s mode\n",
+		 (mode == USB_DR_MODE_HOST) ? "host" : "gadget");
+	return 0;
+}
+
+static int fotg210_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	enum usb_dr_mode mode;
+	int ret;
+
+	mode = usb_get_dr_mode(dev);
+
+	if (of_device_is_compatible(dev->of_node, "cortina,gemini-usb")) {
+		struct resource *res;
+
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		ret = fotg210_gemini_init(dev, res, mode);
+		if (ret)
+			return ret;
+	}
+
+	if (mode == USB_DR_MODE_PERIPHERAL)
+		ret = fotg210_udc_probe(pdev);
+	else
+		ret = fotg210_hcd_probe(pdev);
+
+	return ret;
+}
+
+static int fotg210_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	enum usb_dr_mode mode;
+
+	mode = usb_get_dr_mode(dev);
+
+	if (mode == USB_DR_MODE_PERIPHERAL)
+		fotg210_udc_remove(pdev);
+	else
+		fotg210_hcd_remove(pdev);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id fotg210_of_match[] = {
+	{ .compatible = "faraday,fotg210" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, fotg210_of_match);
+#endif
+
+static struct platform_driver fotg210_driver = {
+	.driver = {
+		.name   = "fotg210",
+		.of_match_table = of_match_ptr(fotg210_of_match),
+	},
+	.probe  = fotg210_probe,
+	.remove = fotg210_remove,
+};
+
+static int __init fotg210_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	if (IS_ENABLED(CONFIG_USB_FOTG210_HCD))
+		fotg210_hcd_init();
+	return platform_driver_register(&fotg210_driver);
+}
+module_init(fotg210_init);
+
+static void __exit fotg210_cleanup(void)
+{
+	platform_driver_unregister(&fotg210_driver);
+	if (IS_ENABLED(CONFIG_USB_FOTG210_HCD))
+		fotg210_hcd_cleanup();
+}
+module_exit(fotg210_cleanup);
+
+MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("FOTG210 Dual Role Controller Driver");