Merge tag 'usb-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big USB and phy driver patch set for 4.19-rc1.

  Nothing huge but there was a lot of work that happened this
  development cycle:

   - lots of type-c work, with drivers graduating out of staging, and
     displayport support being added.

   - new PHY drivers

   - the normal collection of gadget driver updates and fixes

   - code churn to work on the urb handling path, using irqsave()
     everywhere in anticipation of making this codepath a lot simpler in
     the future.

   - usbserial driver fixes and reworks

   - other misc changes

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

* tag 'usb-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (159 commits)
  USB: serial: pl2303: add a new device id for ATEN
  usb: renesas_usbhs: Kconfig: convert to SPDX identifiers
  usb: dwc3: gadget: Check MaxPacketSize from descriptor
  usb: dwc2: Turn on uframe_sched on "stm32f4x9_fsotg" platforms
  usb: dwc2: Turn on uframe_sched on "amlogic" platforms
  usb: dwc2: Turn on uframe_sched on "his" platforms
  usb: dwc2: Turn on uframe_sched on "bcm" platforms
  usb: dwc2: gadget: ISOC's starting flow improvement
  usb: dwc2: Make dwc2_readl/writel functions endianness-agnostic.
  usb: dwc3: core: Enable AutoRetry feature in the controller
  usb: dwc3: Set default mode for dwc_usb31
  usb: gadget: udc: renesas_usb3: Add register of usb role switch
  usb: dwc2: replace ioread32/iowrite32_rep with dwc2_readl/writel_rep
  usb: dwc2: Modify dwc2_readl/writel functions prototype
  usb: dwc3: pci: Intel Merrifield can be host
  usb: dwc3: pci: Supply device properties via driver data
  arm64: dts: dwc3: description of incr burst type
  usb: dwc3: Enable undefined length INCR burst type
  usb: dwc3: add global soc bus configuration reg0
  usb: dwc3: Describe 'wakeup_work' field of struct dwc3_pci
  ...

7 files changed, 276 insertions, 49 deletions

diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 34a6ded6f319..97e2ddec18b1 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -322,6 +322,7 @@ struct hc_driver {
 	int	(*bus_suspend)(struct usb_hcd *);
 	int	(*bus_resume)(struct usb_hcd *);
 	int	(*start_port_reset)(struct usb_hcd *, unsigned port_num);
+	unsigned long	(*get_resuming_ports)(struct usb_hcd *);
 
 		/* force handover of high-speed port to full-speed companion */
 	void	(*relinquish_port)(struct usb_hcd *, int);
diff --git a/include/linux/usb/pd.h b/include/linux/usb/pd.h
index 09b570feb297..f2162e0fe531 100644
--- a/include/linux/usb/pd.h
+++ b/include/linux/usb/pd.h
@@ -15,6 +15,7 @@
 #ifndef __LINUX_USB_PD_H
 #define __LINUX_USB_PD_H
 
+#include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/usb/typec.h>
 
diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h
index b231b9314240..7e7fbfb84e8e 100644
--- a/include/linux/usb/tcpm.h
+++ b/include/linux/usb/tcpm.h
@@ -98,18 +98,10 @@ struct tcpc_config {
 #define TCPC_MUX_DP_ENABLED		BIT(1)	/* DP enabled */
 #define TCPC_MUX_POLARITY_INVERTED	BIT(2)	/* Polarity inverted */
 
-/* Mux modes, decoded to attributes */
-enum tcpc_mux_mode {
-	TYPEC_MUX_NONE	= 0,				/* Open switch */
-	TYPEC_MUX_USB	= TCPC_MUX_USB_ENABLED,		/* USB only */
-	TYPEC_MUX_DP	= TCPC_MUX_DP_ENABLED,		/* DP only */
-	TYPEC_MUX_DOCK	= TCPC_MUX_USB_ENABLED |	/* Both USB and DP */
-			  TCPC_MUX_DP_ENABLED,
-};
-
 /**
  * struct tcpc_dev - Port configuration and callback functions
  * @config:	Pointer to port configuration
+ * @fwnode:	Pointer to port fwnode
  * @get_vbus:	Called to read current VBUS state
  * @get_current_limit:
  *		Optional; called by the tcpm core when configured as a snk
@@ -138,6 +130,7 @@ enum tcpc_mux_mode {
  */
 struct tcpc_dev {
 	const struct tcpc_config *config;
+	struct fwnode_handle *fwnode;
 
 	int (*init)(struct tcpc_dev *dev);
 	int (*get_vbus)(struct tcpc_dev *dev);
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
index 672b39bb0adc..7df4ecabc78a 100644
--- a/include/linux/usb/typec.h
+++ b/include/linux/usb/typec.h
@@ -5,21 +5,18 @@
 
 #include <linux/types.h>
 
-/* XXX: Once we have a header for USB Power Delivery, this belongs there */
-#define ALTMODE_MAX_MODES	6
-
 /* USB Type-C Specification releases */
 #define USB_TYPEC_REV_1_0	0x100 /* 1.0 */
 #define USB_TYPEC_REV_1_1	0x110 /* 1.1 */
 #define USB_TYPEC_REV_1_2	0x120 /* 1.2 */
 
-struct typec_altmode;
 struct typec_partner;
 struct typec_cable;
 struct typec_plug;
 struct typec_port;
 
 struct fwnode_handle;
+struct device;
 
 enum typec_port_type {
 	TYPEC_PORT_SRC,
@@ -93,39 +90,21 @@ int typec_partner_set_identity(struct typec_partner *partner);
 int typec_cable_set_identity(struct typec_cable *cable);
 
 /*
- * struct typec_mode_desc - Individual Mode of an Alternate Mode
- * @index: Index of the Mode within the SVID
- * @vdo: VDO returned by Discover Modes USB PD command
- * @desc: Optional human readable description of the mode
- * @roles: Only for ports. DRP if the mode is available in both roles
- *
- * Description of a mode of an Alternate Mode which a connector, cable plug or
- * partner supports. Every mode will have it's own sysfs group. The details are
- * the VDO returned by discover modes command, description for the mode and
- * active flag telling has the mode being entered or not.
- */
-struct typec_mode_desc {
-	int			index;
-	u32			vdo;
-	char			*desc;
-	/* Only used with ports */
-	enum typec_port_type	roles;
-};
-
-/*
  * struct typec_altmode_desc - USB Type-C Alternate Mode Descriptor
  * @svid: Standard or Vendor ID
- * @n_modes: Number of modes
- * @modes: Array of modes supported by the Alternate Mode
+ * @mode: Index of the Mode
+ * @vdo: VDO returned by Discover Modes USB PD command
+ * @roles: Only for ports. DRP if the mode is available in both roles
  *
- * Representation of an Alternate Mode that has SVID assigned by USB-IF. The
- * array of modes will list the modes of a particular SVID that are supported by
- * a connector, partner of a cable plug.
+ * Description of an Alternate Mode which a connector, cable plug or partner
+ * supports.
  */
 struct typec_altmode_desc {
 	u16			svid;
-	int			n_modes;
-	struct typec_mode_desc	modes[ALTMODE_MAX_MODES];
+	u8			mode;
+	u32			vdo;
+	/* Only used with ports */
+	enum typec_port_data	roles;
 };
 
 struct typec_altmode
@@ -141,8 +120,7 @@ void typec_unregister_altmode(struct typec_altmode *altmode);
 
 struct typec_port *typec_altmode2port(struct typec_altmode *alt);
 
-void typec_altmode_update_active(struct typec_altmode *alt, int mode,
-				 bool active);
+void typec_altmode_update_active(struct typec_altmode *alt, bool active);
 
 enum typec_plug_index {
 	TYPEC_PLUG_SOP_P,
@@ -205,7 +183,6 @@ struct typec_partner_desc {
  * @dr_set: Set Data Role
  * @pr_set: Set Power Role
  * @vconn_set: Set VCONN Role
- * @activate_mode: Enter/exit given Alternate Mode
  * @port_type_set: Set port type
  *
  * Static capabilities of a single USB Type-C port.
@@ -231,12 +208,8 @@ struct typec_capability {
 				  enum typec_role);
 	int		(*vconn_set)(const struct typec_capability *,
 				     enum typec_role);
-
-	int		(*activate_mode)(const struct typec_capability *,
-					 int mode, int activate);
 	int		(*port_type_set)(const struct typec_capability *,
-					enum typec_port_type);
-
+					 enum typec_port_type);
 };
 
 /* Specific to try_role(). Indicates the user want's to clear the preference. */
@@ -265,6 +238,10 @@ void typec_set_pwr_opmode(struct typec_port *port, enum typec_pwr_opmode mode);
 
 int typec_set_orientation(struct typec_port *port,
 			  enum typec_orientation orientation);
+enum typec_orientation typec_get_orientation(struct typec_port *port);
 int typec_set_mode(struct typec_port *port, int mode);
 
+int typec_find_port_power_role(const char *name);
+int typec_find_power_role(const char *name);
+int typec_find_port_data_role(const char *name);
 #endif /* __LINUX_USB_TYPEC_H */
diff --git a/include/linux/usb/typec_altmode.h b/include/linux/usb/typec_altmode.h
new file mode 100644
index 000000000000..9a88c74a1d0d
--- /dev/null
+++ b/include/linux/usb/typec_altmode.h
@@ -0,0 +1,160 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __USB_TYPEC_ALTMODE_H
+#define __USB_TYPEC_ALTMODE_H
+
+#include <linux/mod_devicetable.h>
+#include <linux/usb/typec.h>
+#include <linux/device.h>
+
+#define MODE_DISCOVERY_MAX	6
+
+struct typec_altmode_ops;
+
+/**
+ * struct typec_altmode - USB Type-C alternate mode device
+ * @dev: Driver model's view of this device
+ * @svid: Standard or Vendor ID (SVID) of the alternate mode
+ * @mode: Index of the Mode
+ * @vdo: VDO returned by Discover Modes USB PD command
+ * @active: Tells has the mode been entered or not
+ * @desc: Optional human readable description of the mode
+ * @ops: Operations vector from the driver
+ */
+struct typec_altmode {
+	struct device			dev;
+	u16				svid;
+	int				mode;
+	u32				vdo;
+	unsigned int			active:1;
+
+	char				*desc;
+	const struct typec_altmode_ops	*ops;
+};
+
+#define to_typec_altmode(d) container_of(d, struct typec_altmode, dev)
+
+static inline void typec_altmode_set_drvdata(struct typec_altmode *altmode,
+					     void *data)
+{
+	dev_set_drvdata(&altmode->dev, data);
+}
+
+static inline void *typec_altmode_get_drvdata(struct typec_altmode *altmode)
+{
+	return dev_get_drvdata(&altmode->dev);
+}
+
+/**
+ * struct typec_altmode_ops - Alternate mode specific operations vector
+ * @enter: Operations to be executed with Enter Mode Command
+ * @exit: Operations to be executed with Exit Mode Command
+ * @attention: Callback for Attention Command
+ * @vdm: Callback for SVID specific commands
+ * @notify: Communication channel for platform and the alternate mode
+ * @activate: User callback for Enter/Exit Mode
+ */
+struct typec_altmode_ops {
+	int (*enter)(struct typec_altmode *altmode);
+	int (*exit)(struct typec_altmode *altmode);
+	void (*attention)(struct typec_altmode *altmode, u32 vdo);
+	int (*vdm)(struct typec_altmode *altmode, const u32 hdr,
+		   const u32 *vdo, int cnt);
+	int (*notify)(struct typec_altmode *altmode, unsigned long conf,
+		      void *data);
+	int (*activate)(struct typec_altmode *altmode, int activate);
+};
+
+int typec_altmode_enter(struct typec_altmode *altmode);
+int typec_altmode_exit(struct typec_altmode *altmode);
+void typec_altmode_attention(struct typec_altmode *altmode, u32 vdo);
+int typec_altmode_vdm(struct typec_altmode *altmode,
+		      const u32 header, const u32 *vdo, int count);
+int typec_altmode_notify(struct typec_altmode *altmode, unsigned long conf,
+			 void *data);
+const struct typec_altmode *
+typec_altmode_get_partner(struct typec_altmode *altmode);
+
+/*
+ * These are the connector states (USB, Safe and Alt Mode) defined in USB Type-C
+ * Specification. SVID specific connector states are expected to follow and
+ * start from the value TYPEC_STATE_MODAL.
+ */
+enum {
+	TYPEC_STATE_SAFE,	/* USB Safe State */
+	TYPEC_STATE_USB,	/* USB Operation */
+	TYPEC_STATE_MODAL,	/* Alternate Modes */
+};
+
+/*
+ * For the muxes there is no difference between Accessory Modes and Alternate
+ * Modes, so the Accessory Modes are supplied with specific modal state values
+ * here. Unlike with Alternate Modes, where the mux will be linked with the
+ * alternate mode device, the mux for Accessory Modes will be linked with the
+ * port device instead.
+ *
+ * Port drivers can use TYPEC_MODE_AUDIO and TYPEC_MODE_DEBUG as the mode
+ * value for typec_set_mode() when accessory modes are supported.
+ */
+enum {
+	TYPEC_MODE_AUDIO = TYPEC_STATE_MODAL,	/* Audio Accessory */
+	TYPEC_MODE_DEBUG,			/* Debug Accessory */
+};
+
+#define TYPEC_MODAL_STATE(_state_)	((_state_) + TYPEC_STATE_MODAL)
+
+struct typec_altmode *typec_altmode_get_plug(struct typec_altmode *altmode,
+					     enum typec_plug_index index);
+void typec_altmode_put_plug(struct typec_altmode *plug);
+
+struct typec_altmode *typec_match_altmode(struct typec_altmode **altmodes,
+					  size_t n, u16 svid, u8 mode);
+
+struct typec_altmode *
+typec_altmode_register_notifier(struct device *dev, u16 svid, u8 mode,
+				struct notifier_block *nb);
+
+void typec_altmode_unregister_notifier(struct typec_altmode *adev,
+				       struct notifier_block *nb);
+
+/**
+ * typec_altmode_get_orientation - Get cable plug orientation
+ * altmode: Handle to the alternate mode
+ */
+static inline enum typec_orientation
+typec_altmode_get_orientation(struct typec_altmode *altmode)
+{
+	return typec_get_orientation(typec_altmode2port(altmode));
+}
+
+/**
+ * struct typec_altmode_driver - USB Type-C alternate mode device driver
+ * @id_table: Null terminated array of SVIDs
+ * @probe: Callback for device binding
+ * @remove: Callback for device unbinding
+ * @driver: Device driver model driver
+ *
+ * These drivers will be bind to the partner alternate mode devices. They will
+ * handle all SVID specific communication.
+ */
+struct typec_altmode_driver {
+	const struct typec_device_id *id_table;
+	int (*probe)(struct typec_altmode *altmode);
+	void (*remove)(struct typec_altmode *altmode);
+	struct device_driver driver;
+};
+
+#define to_altmode_driver(d) container_of(d, struct typec_altmode_driver, \
+					  driver)
+
+#define typec_altmode_register_driver(drv) \
+		__typec_altmode_register_driver(drv, THIS_MODULE)
+int __typec_altmode_register_driver(struct typec_altmode_driver *drv,
+				    struct module *module);
+void typec_altmode_unregister_driver(struct typec_altmode_driver *drv);
+
+#define module_typec_altmode_driver(__typec_altmode_driver) \
+	module_driver(__typec_altmode_driver, typec_altmode_register_driver, \
+		      typec_altmode_unregister_driver)
+
+#endif /* __USB_TYPEC_ALTMODE_H */
diff --git a/include/linux/usb/typec_dp.h b/include/linux/usb/typec_dp.h
new file mode 100644
index 000000000000..55ae781d60a9
--- /dev/null
+++ b/include/linux/usb/typec_dp.h
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __USB_TYPEC_DP_H
+#define __USB_TYPEC_DP_H
+
+#include <linux/usb/typec_altmode.h>
+
+#define USB_TYPEC_DP_SID	0xff01
+#define USB_TYPEC_DP_MODE	1
+
+/*
+ * Connector states matching the pin assignments in DisplayPort Alt Mode
+ * Specification.
+ *
+ * These values are meant primarily to be used by the mux drivers, but they are
+ * also used as the "value" part in the alternate mode notification chain, so
+ * receivers of those notifications will always see them.
+ *
+ * Note. DisplayPort USB Type-C Alt Mode Specification version 1.0b deprecated
+ * pin assignments A, B and F, but they are still defined here for legacy
+ * purposes.
+ */
+enum {
+	TYPEC_DP_STATE_A = TYPEC_STATE_MODAL,	/* Not supported after v1.0b */
+	TYPEC_DP_STATE_B,			/* Not supported after v1.0b */
+	TYPEC_DP_STATE_C,
+	TYPEC_DP_STATE_D,
+	TYPEC_DP_STATE_E,
+	TYPEC_DP_STATE_F,			/* Not supported after v1.0b */
+};
+
+/*
+ * struct typec_displayport_data - DisplayPort Alt Mode specific data
+ * @status: Status Update command VDO content
+ * @conf: Configure command VDO content
+ *
+ * This structure is delivered as the data part with the notifications. It
+ * contains the VDOs from the two DisplayPort Type-C alternate mode specific
+ * commands: Status Update and Configure.
+ *
+ * @status will show for example the status of the HPD signal.
+ */
+struct typec_displayport_data {
+	u32 status;
+	u32 conf;
+};
+
+enum {
+	DP_PIN_ASSIGN_A, /* Not supported after v1.0b */
+	DP_PIN_ASSIGN_B, /* Not supported after v1.0b */
+	DP_PIN_ASSIGN_C,
+	DP_PIN_ASSIGN_D,
+	DP_PIN_ASSIGN_E,
+	DP_PIN_ASSIGN_F, /* Not supported after v1.0b */
+};
+
+/* DisplayPort alt mode specific commands */
+#define DP_CMD_STATUS_UPDATE		VDO_CMD_VENDOR(0)
+#define DP_CMD_CONFIGURE		VDO_CMD_VENDOR(1)
+
+/* DisplayPort Capabilities VDO bits (returned with Discover Modes) */
+#define DP_CAP_CAPABILITY(_cap_)	((_cap_) & 3)
+#define   DP_CAP_UFP_D			1
+#define   DP_CAP_DFP_D			2
+#define   DP_CAP_DFP_D_AND_UFP_D	3
+#define DP_CAP_DP_SIGNALING		BIT(2) /* Always set */
+#define DP_CAP_GEN2			BIT(3) /* Reserved after v1.0b */
+#define DP_CAP_RECEPTACLE		BIT(6)
+#define DP_CAP_USB			BIT(7)
+#define DP_CAP_DFP_D_PIN_ASSIGN(_cap_)	(((_cap_) & GENMASK(15, 8)) >> 8)
+#define DP_CAP_UFP_D_PIN_ASSIGN(_cap_)	(((_cap_) & GENMASK(23, 16)) >> 16)
+
+/* DisplayPort Status Update VDO bits */
+#define DP_STATUS_CONNECTION(_status_)	((_status_) & 3)
+#define   DP_STATUS_CON_DISABLED	0
+#define   DP_STATUS_CON_DFP_D		1
+#define   DP_STATUS_CON_UFP_D		2
+#define   DP_STATUS_CON_BOTH		3
+#define DP_STATUS_POWER_LOW		BIT(2)
+#define DP_STATUS_ENABLED		BIT(3)
+#define DP_STATUS_PREFER_MULTI_FUNC	BIT(4)
+#define DP_STATUS_SWITCH_TO_USB		BIT(5)
+#define DP_STATUS_EXIT_DP_MODE		BIT(6)
+#define DP_STATUS_HPD_STATE		BIT(7) /* 0 = HPD_Low, 1 = HPD_High */
+#define DP_STATUS_IRQ_HPD		BIT(8)
+
+/* DisplayPort Configurations VDO bits */
+#define DP_CONF_CURRENTLY(_conf_)	((_conf_) & 3)
+#define DP_CONF_UFP_U_AS_DFP_D		BIT(0)
+#define DP_CONF_UFP_U_AS_UFP_D		BIT(1)
+#define DP_CONF_SIGNALING_DP		BIT(2)
+#define DP_CONF_SIGNALING_GEN_2		BIT(3) /* Reserved after v1.0b */
+#define DP_CONF_PIN_ASSIGNEMENT_SHIFT	8
+#define DP_CONF_PIN_ASSIGNEMENT_MASK	GENMASK(15, 8)
+
+#endif /* __USB_TYPEC_DP_H */
diff --git a/include/linux/usb/typec_mux.h b/include/linux/usb/typec_mux.h
index 12c1b057834b..79293f630ee1 100644
--- a/include/linux/usb/typec_mux.h
+++ b/include/linux/usb/typec_mux.h
@@ -47,7 +47,7 @@ void typec_switch_put(struct typec_switch *sw);
 int typec_switch_register(struct typec_switch *sw);
 void typec_switch_unregister(struct typec_switch *sw);
 
-struct typec_mux *typec_mux_get(struct device *dev);
+struct typec_mux *typec_mux_get(struct device *dev, const char *name);
 void typec_mux_put(struct typec_mux *mux);
 int typec_mux_register(struct typec_mux *mux);
 void typec_mux_unregister(struct typec_mux *mux);