[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/usb/phy/phy-omap-otg.c b/src/kernel/linux/v4.14/drivers/usb/phy/phy-omap-otg.c
new file mode 100644
index 0000000..800d1d9
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/usb/phy/phy-omap-otg.c
@@ -0,0 +1,158 @@
+/*
+ * OMAP OTG controller driver
+ *
+ * Based on code from tahvo-usb.c and isp1301_omap.c drivers.
+ *
+ * Copyright (C) 2005-2006 Nokia Corporation
+ * Copyright (C) 2004 Texas Instruments
+ * Copyright (C) 2004 David Brownell
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/extcon.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/usb-omap1.h>
+
+struct otg_device {
+ void __iomem *base;
+ bool id;
+ bool vbus;
+ struct extcon_dev *extcon;
+ struct notifier_block vbus_nb;
+ struct notifier_block id_nb;
+};
+
+#define OMAP_OTG_CTRL 0x0c
+#define OMAP_OTG_ASESSVLD (1 << 20)
+#define OMAP_OTG_BSESSEND (1 << 19)
+#define OMAP_OTG_BSESSVLD (1 << 18)
+#define OMAP_OTG_VBUSVLD (1 << 17)
+#define OMAP_OTG_ID (1 << 16)
+#define OMAP_OTG_XCEIV_OUTPUTS \
+ (OMAP_OTG_ASESSVLD | OMAP_OTG_BSESSEND | OMAP_OTG_BSESSVLD | \
+ OMAP_OTG_VBUSVLD | OMAP_OTG_ID)
+
+static void omap_otg_ctrl(struct otg_device *otg_dev, u32 outputs)
+{
+ u32 l;
+
+ l = readl(otg_dev->base + OMAP_OTG_CTRL);
+ l &= ~OMAP_OTG_XCEIV_OUTPUTS;
+ l |= outputs;
+ writel(l, otg_dev->base + OMAP_OTG_CTRL);
+}
+
+static void omap_otg_set_mode(struct otg_device *otg_dev)
+{
+ if (!otg_dev->id && otg_dev->vbus)
+ /* Set B-session valid. */
+ omap_otg_ctrl(otg_dev, OMAP_OTG_ID | OMAP_OTG_BSESSVLD);
+ else if (otg_dev->vbus)
+ /* Set A-session valid. */
+ omap_otg_ctrl(otg_dev, OMAP_OTG_ASESSVLD);
+ else if (!otg_dev->id)
+ /* Set B-session end to indicate no VBUS. */
+ omap_otg_ctrl(otg_dev, OMAP_OTG_ID | OMAP_OTG_BSESSEND);
+}
+
+static int omap_otg_id_notifier(struct notifier_block *nb,
+ unsigned long event, void *ptr)
+{
+ struct otg_device *otg_dev = container_of(nb, struct otg_device, id_nb);
+
+ otg_dev->id = event;
+ omap_otg_set_mode(otg_dev);
+
+ return NOTIFY_DONE;
+}
+
+static int omap_otg_vbus_notifier(struct notifier_block *nb,
+ unsigned long event, void *ptr)
+{
+ struct otg_device *otg_dev = container_of(nb, struct otg_device,
+ vbus_nb);
+
+ otg_dev->vbus = event;
+ omap_otg_set_mode(otg_dev);
+
+ return NOTIFY_DONE;
+}
+
+static int omap_otg_probe(struct platform_device *pdev)
+{
+ const struct omap_usb_config *config = pdev->dev.platform_data;
+ struct otg_device *otg_dev;
+ struct extcon_dev *extcon;
+ int ret;
+ u32 rev;
+
+ if (!config || !config->extcon)
+ return -ENODEV;
+
+ extcon = extcon_get_extcon_dev(config->extcon);
+ if (!extcon)
+ return -EPROBE_DEFER;
+
+ otg_dev = devm_kzalloc(&pdev->dev, sizeof(*otg_dev), GFP_KERNEL);
+ if (!otg_dev)
+ return -ENOMEM;
+
+ otg_dev->base = devm_ioremap_resource(&pdev->dev, &pdev->resource[0]);
+ if (IS_ERR(otg_dev->base))
+ return PTR_ERR(otg_dev->base);
+
+ otg_dev->extcon = extcon;
+ otg_dev->id_nb.notifier_call = omap_otg_id_notifier;
+ otg_dev->vbus_nb.notifier_call = omap_otg_vbus_notifier;
+
+ ret = devm_extcon_register_notifier(&pdev->dev, extcon,
+ EXTCON_USB_HOST, &otg_dev->id_nb);
+ if (ret)
+ return ret;
+
+ ret = devm_extcon_register_notifier(&pdev->dev, extcon,
+ EXTCON_USB, &otg_dev->vbus_nb);
+ if (ret) {
+ return ret;
+ }
+
+ otg_dev->id = extcon_get_state(extcon, EXTCON_USB_HOST);
+ otg_dev->vbus = extcon_get_state(extcon, EXTCON_USB);
+ omap_otg_set_mode(otg_dev);
+
+ rev = readl(otg_dev->base);
+
+ dev_info(&pdev->dev,
+ "OMAP USB OTG controller rev %d.%d (%s, id=%d, vbus=%d)\n",
+ (rev >> 4) & 0xf, rev & 0xf, config->extcon, otg_dev->id,
+ otg_dev->vbus);
+
+ platform_set_drvdata(pdev, otg_dev);
+
+ return 0;
+}
+
+static struct platform_driver omap_otg_driver = {
+ .probe = omap_otg_probe,
+ .driver = {
+ .name = "omap_otg",
+ },
+};
+module_platform_driver(omap_otg_driver);
+
+MODULE_DESCRIPTION("OMAP USB OTG controller driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Aaro Koskinen <aaro.koskinen@iki.fi>");