Merge tag 'usb-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY driver updates from Greg KH:
 "Here is the large USB and PHY driver update for 4.14-rc1.

  Not all that exciting, a few new PHY drivers, the usual mess of gadget
  driver updates and fixes, and of course, xhci updates to try to tame
  that beast.

  A number of usb-serial updates and other small fixes all over the USB
  driver tree are in here as well. Full details are in the shortlog.

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

* tag 'usb-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (171 commits)
  usbip: vhci-hcd: make vhci_hc_driver const
  usb: phy: Avoid unchecked dereference warning
  usb: imx21-hcd: make imx21_hc_driver const
  usb: host: make ehci_fsl_overrides const and __initconst
  dt-bindings: mt8173-mtu3: add generic compatible and rename file
  dt-bindings: mt8173-xhci: add generic compatible and rename file
  usb: xhci-mtk: add generic compatible string
  usbip: auto retry for concurrent attach
  USB: serial: option: simplify 3 D-Link device entries
  USB: serial: option: add support for D-Link DWM-157 C1
  usb: core: usbport: fix "BUG: key not in .data" when lockdep is enabled
  usb: chipidea: usb2: check memory allocation failure
  usb: Add device quirk for Logitech HD Pro Webcam C920-C
  usb: misc: lvstest: add entry to place port in compliance mode
  usb: xhci: Support enabling of compliance mode for xhci 1.1
  usb:xhci:Fix regression when ATI chipsets detected
  usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard
  usb: gadget: make snd_pcm_hardware const
  usb: common: use of_property_read_bool()
  USB: core: constify vm_operations_struct
  ...

1 files changed, 155 insertions, 0 deletions

diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c
new file mode 100644
index 000000000000..bfcee2702d50
--- /dev/null
+++ b/drivers/usb/chipidea/ci_hdrc_tegra.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2016, NVIDIA Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/reset.h>
+
+#include <linux/usb/chipidea.h>
+
+#include "ci.h"
+
+struct tegra_udc {
+	struct ci_hdrc_platform_data data;
+	struct platform_device *dev;
+
+	struct usb_phy *phy;
+	struct clk *clk;
+};
+
+struct tegra_udc_soc_info {
+	unsigned long flags;
+};
+
+static const struct tegra_udc_soc_info tegra20_udc_soc_info = {
+	.flags = CI_HDRC_REQUIRES_ALIGNED_DMA,
+};
+
+static const struct tegra_udc_soc_info tegra30_udc_soc_info = {
+	.flags = 0,
+};
+
+static const struct tegra_udc_soc_info tegra114_udc_soc_info = {
+	.flags = 0,
+};
+
+static const struct tegra_udc_soc_info tegra124_udc_soc_info = {
+	.flags = 0,
+};
+
+static const struct of_device_id tegra_udc_of_match[] = {
+	{
+		.compatible = "nvidia,tegra20-udc",
+		.data = &tegra20_udc_soc_info,
+	}, {
+		.compatible = "nvidia,tegra30-udc",
+		.data = &tegra30_udc_soc_info,
+	}, {
+		.compatible = "nvidia,tegra114-udc",
+		.data = &tegra114_udc_soc_info,
+	}, {
+		.compatible = "nvidia,tegra124-udc",
+		.data = &tegra124_udc_soc_info,
+	}, {
+		/* sentinel */
+	}
+};
+MODULE_DEVICE_TABLE(of, tegra_udc_of_match);
+
+static int tegra_udc_probe(struct platform_device *pdev)
+{
+	const struct tegra_udc_soc_info *soc;
+	struct tegra_udc *udc;
+	int err;
+
+	udc = devm_kzalloc(&pdev->dev, sizeof(*udc), GFP_KERNEL);
+	if (!udc)
+		return -ENOMEM;
+
+	soc = of_device_get_match_data(&pdev->dev);
+	if (!soc) {
+		dev_err(&pdev->dev, "failed to match OF data\n");
+		return -EINVAL;
+	}
+
+	udc->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "nvidia,phy", 0);
+	if (IS_ERR(udc->phy)) {
+		err = PTR_ERR(udc->phy);
+		dev_err(&pdev->dev, "failed to get PHY: %d\n", err);
+		return err;
+	}
+
+	udc->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(udc->clk)) {
+		err = PTR_ERR(udc->clk);
+		dev_err(&pdev->dev, "failed to get clock: %d\n", err);
+		return err;
+	}
+
+	err = clk_prepare_enable(udc->clk);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to enable clock: %d\n", err);
+		return err;
+	}
+
+	/*
+	 * Tegra's USB PHY driver doesn't implement optional phy_init()
+	 * hook, so we have to power on UDC controller before ChipIdea
+	 * driver initialization kicks in.
+	 */
+	usb_phy_set_suspend(udc->phy, 0);
+
+	/* setup and register ChipIdea HDRC device */
+	udc->data.name = "tegra-udc";
+	udc->data.flags = soc->flags;
+	udc->data.usb_phy = udc->phy;
+	udc->data.capoffset = DEF_CAPOFFSET;
+
+	udc->dev = ci_hdrc_add_device(&pdev->dev, pdev->resource,
+				      pdev->num_resources, &udc->data);
+	if (IS_ERR(udc->dev)) {
+		err = PTR_ERR(udc->dev);
+		dev_err(&pdev->dev, "failed to add HDRC device: %d\n", err);
+		goto fail_power_off;
+	}
+
+	platform_set_drvdata(pdev, udc);
+
+	return 0;
+
+fail_power_off:
+	usb_phy_set_suspend(udc->phy, 1);
+	clk_disable_unprepare(udc->clk);
+	return err;
+}
+
+static int tegra_udc_remove(struct platform_device *pdev)
+{
+	struct tegra_udc *udc = platform_get_drvdata(pdev);
+
+	usb_phy_set_suspend(udc->phy, 1);
+	clk_disable_unprepare(udc->clk);
+
+	return 0;
+}
+
+static struct platform_driver tegra_udc_driver = {
+	.driver = {
+		.name = "tegra-udc",
+		.of_match_table = tegra_udc_of_match,
+	},
+	.probe = tegra_udc_probe,
+	.remove = tegra_udc_remove,
+};
+module_platform_driver(tegra_udc_driver);
+
+MODULE_DESCRIPTION("NVIDIA Tegra USB device mode driver");
+MODULE_AUTHOR("Thierry Reding <[email protected]>");
+MODULE_ALIAS("platform:tegra-udc");
+MODULE_LICENSE("GPL v2");