v4.19.13 snapshot.
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
new file mode 100644
index 0000000..07f9936
--- /dev/null
+++ b/include/linux/usb/chipidea.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Platform data for the chipidea USB dual role controller
+ */
+
+#ifndef __LINUX_USB_CHIPIDEA_H
+#define __LINUX_USB_CHIPIDEA_H
+
+#include <linux/extcon.h>
+#include <linux/usb/otg.h>
+
+struct ci_hdrc;
+
+/**
+ * struct ci_hdrc_cable - structure for external connector cable state tracking
+ * @connected: true if cable is connected, false otherwise
+ * @changed: set to true when extcon event happen
+ * @enabled: set to true if we've enabled the vbus or id interrupt
+ * @edev: device which generate events
+ * @ci: driver state of the chipidea device
+ * @nb: hold event notification callback
+ * @conn: used for notification registration
+ */
+struct ci_hdrc_cable {
+ bool connected;
+ bool changed;
+ bool enabled;
+ struct extcon_dev *edev;
+ struct ci_hdrc *ci;
+ struct notifier_block nb;
+};
+
+struct ci_hdrc_platform_data {
+ const char *name;
+ /* offset of the capability registers */
+ uintptr_t capoffset;
+ unsigned power_budget;
+ struct phy *phy;
+ /* old usb_phy interface */
+ struct usb_phy *usb_phy;
+ enum usb_phy_interface phy_mode;
+ unsigned long flags;
+#define CI_HDRC_REGS_SHARED BIT(0)
+#define CI_HDRC_DISABLE_DEVICE_STREAMING BIT(1)
+#define CI_HDRC_SUPPORTS_RUNTIME_PM BIT(2)
+#define CI_HDRC_DISABLE_HOST_STREAMING BIT(3)
+#define CI_HDRC_DISABLE_STREAMING (CI_HDRC_DISABLE_DEVICE_STREAMING | \
+ CI_HDRC_DISABLE_HOST_STREAMING)
+ /*
+ * Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1,
+ * but otg is not supported (no register otgsc).
+ */
+#define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4)
+#define CI_HDRC_IMX28_WRITE_FIX BIT(5)
+#define CI_HDRC_FORCE_FULLSPEED BIT(6)
+#define CI_HDRC_TURN_VBUS_EARLY_ON BIT(7)
+#define CI_HDRC_SET_NON_ZERO_TTHA BIT(8)
+#define CI_HDRC_OVERRIDE_AHB_BURST BIT(9)
+#define CI_HDRC_OVERRIDE_TX_BURST BIT(10)
+#define CI_HDRC_OVERRIDE_RX_BURST BIT(11)
+#define CI_HDRC_OVERRIDE_PHY_CONTROL BIT(12) /* Glue layer manages phy */
+#define CI_HDRC_REQUIRES_ALIGNED_DMA BIT(13)
+ enum usb_dr_mode dr_mode;
+#define CI_HDRC_CONTROLLER_RESET_EVENT 0
+#define CI_HDRC_CONTROLLER_STOPPED_EVENT 1
+ int (*notify_event) (struct ci_hdrc *ci, unsigned event);
+ struct regulator *reg_vbus;
+ struct usb_otg_caps ci_otg_caps;
+ bool tpl_support;
+ /* interrupt threshold setting */
+ u32 itc_setting;
+ u32 ahb_burst_config;
+ u32 tx_burst_size;
+ u32 rx_burst_size;
+
+ /* VBUS and ID signal state tracking, using extcon framework */
+ struct ci_hdrc_cable vbus_extcon;
+ struct ci_hdrc_cable id_extcon;
+ u32 phy_clkgate_delay_us;
+};
+
+/* Default offset of capability registers */
+#define DEF_CAPOFFSET 0x100
+
+/* Add ci hdrc device */
+struct platform_device *ci_hdrc_add_device(struct device *dev,
+ struct resource *res, int nres,
+ struct ci_hdrc_platform_data *platdata);
+/* Remove ci hdrc device */
+void ci_hdrc_remove_device(struct platform_device *pdev);
+
+#endif