Merge tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY/Thunderbolt driver updates from Greg KH:
 "Here is the big set of USB, PHY, and Thunderbolt driver updates for
  5.10-rc1.

  Lots of tiny different things for these subsystems are in here,
  including:

   - phy driver updates

   - thunderbolt / USB 4 updates and additions

   - USB gadget driver updates

   - xhci fixes and updates

   - typec driver additions and updates

   - api conversions to various drivers for core kernel api changes

   - new USB control message functions to make it harder to get wrong,
     as found by syzbot (took 2 tries to get it right)

   - lots of tiny USB driver fixes and updates all over the place

  All of these have been in linux-next for a while, with the exception
  of the last "obviously correct" patch that updated a FALLTHROUGH
  comment that got merged last weekend"

* tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (374 commits)
  usb: musb: gadget: Use fallthrough pseudo-keyword
  usb: typec: Add QCOM PMIC typec detection driver
  USB: serial: option: add Cellient MPL200 card
  usb: typec: tcpci_maxim: Add support for Sink FRS
  usb: typec: tcpci: Implement callbacks for FRS
  usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS)
  usb: typec: tcpci_maxim: Chip level TCPC driver
  usb: typec: tcpci: Add set_vbus tcpci callback
  usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference
  usbip: vhci_hcd: fix calling usb_hcd_giveback_urb() with irqs enabled
  usb: cdc-acm: add quirk to blacklist ETAS ES58X devices
  USB: serial: ftdi_sio: use cur_altsetting for consistency
  USB: serial: option: Add Telit FT980-KS composition
  USB: core: remove polling for /sys/kernel/debug/usb/devices
  usb: typec: add support for STUSB160x Type-C controller family
  usb: typec: add typec_find_pwr_opmode
  usb: typec: hd3ss3220: Use OF graph API to get the connector fwnode
  dt-bindings: usb: renesas,usb3-peri: Document HS and SS data bus
  dt-bindings: usb: convert ti,hd3ss3220 bindings to json-schema
  usb: dwc2: Fix INTR OUT transfers in DDMA mode.
  ...

1 files changed, 121 insertions, 30 deletions

diff --git a/drivers/thunderbolt/lc.c b/drivers/thunderbolt/lc.c
index 19be627d090f..41e6c738f6c8 100644
--- a/drivers/thunderbolt/lc.c
+++ b/drivers/thunderbolt/lc.c
@@ -45,7 +45,7 @@ static int find_port_lc_cap(struct tb_port *port)
 	return sw->cap_lc + start + phys * size;
 }
 
-static int tb_lc_configure_lane(struct tb_port *port, bool configure)
+static int tb_lc_set_port_configured(struct tb_port *port, bool configured)
 {
 	bool upstream = tb_is_upstream_port(port);
 	struct tb_switch *sw = port->sw;
@@ -69,7 +69,7 @@ static int tb_lc_configure_lane(struct tb_port *port, bool configure)
 	else
 		lane = TB_LC_SX_CTRL_L2C;
 
-	if (configure) {
+	if (configured) {
 		ctrl |= lane;
 		if (upstream)
 			ctrl |= TB_LC_SX_CTRL_UPSTREAM;
@@ -83,55 +83,146 @@ static int tb_lc_configure_lane(struct tb_port *port, bool configure)
 }
 
 /**
- * tb_lc_configure_link() - Let LC know about configured link
- * @sw: Switch that is being added
+ * tb_lc_configure_port() - Let LC know about configured port
+ * @port: Port that is set as configured
  *
- * Informs LC of both parent switch and @sw that there is established
- * link between the two.
+ * Sets the port configured for power management purposes.
  */
-int tb_lc_configure_link(struct tb_switch *sw)
+int tb_lc_configure_port(struct tb_port *port)
 {
-	struct tb_port *up, *down;
-	int ret;
+	return tb_lc_set_port_configured(port, true);
+}
+
+/**
+ * tb_lc_unconfigure_port() - Let LC know about unconfigured port
+ * @port: Port that is set as configured
+ *
+ * Sets the port unconfigured for power management purposes.
+ */
+void tb_lc_unconfigure_port(struct tb_port *port)
+{
+	tb_lc_set_port_configured(port, false);
+}
 
-	if (!tb_route(sw) || tb_switch_is_icm(sw))
+static int tb_lc_set_xdomain_configured(struct tb_port *port, bool configure)
+{
+	struct tb_switch *sw = port->sw;
+	u32 ctrl, lane;
+	int cap, ret;
+
+	if (sw->generation < 2)
 		return 0;
 
-	up = tb_upstream_port(sw);
-	down = tb_port_at(tb_route(sw), tb_to_switch(sw->dev.parent));
+	cap = find_port_lc_cap(port);
+	if (cap < 0)
+		return cap;
 
-	/* Configure parent link toward this switch */
-	ret = tb_lc_configure_lane(down, true);
+	ret = tb_sw_read(sw, &ctrl, TB_CFG_SWITCH, cap + TB_LC_SX_CTRL, 1);
 	if (ret)
 		return ret;
 
-	/* Configure upstream link from this switch to the parent */
-	ret = tb_lc_configure_lane(up, true);
+	/* Resolve correct lane */
+	if (port->port % 2)
+		lane = TB_LC_SX_CTRL_L1D;
+	else
+		lane = TB_LC_SX_CTRL_L2D;
+
+	if (configure)
+		ctrl |= lane;
+	else
+		ctrl &= ~lane;
+
+	return tb_sw_write(sw, &ctrl, TB_CFG_SWITCH, cap + TB_LC_SX_CTRL, 1);
+}
+
+/**
+ * tb_lc_configure_xdomain() - Inform LC that the link is XDomain
+ * @port: Switch downstream port connected to another host
+ *
+ * Sets the lane configured for XDomain accordingly so that the LC knows
+ * about this. Returns %0 in success and negative errno in failure.
+ */
+int tb_lc_configure_xdomain(struct tb_port *port)
+{
+	return tb_lc_set_xdomain_configured(port, true);
+}
+
+/**
+ * tb_lc_unconfigure_xdomain() - Unconfigure XDomain from port
+ * @port: Switch downstream port that was connected to another host
+ *
+ * Unsets the lane XDomain configuration.
+ */
+void tb_lc_unconfigure_xdomain(struct tb_port *port)
+{
+	tb_lc_set_xdomain_configured(port, false);
+}
+
+static int tb_lc_set_wake_one(struct tb_switch *sw, unsigned int offset,
+			      unsigned int flags)
+{
+	u32 ctrl;
+	int ret;
+
+	/*
+	 * Enable wake on PCIe and USB4 (wake coming from another
+	 * router).
+	 */
+	ret = tb_sw_read(sw, &ctrl, TB_CFG_SWITCH,
+			 offset + TB_LC_SX_CTRL, 1);
 	if (ret)
-		tb_lc_configure_lane(down, false);
+		return ret;
+
+	ctrl &= ~(TB_LC_SX_CTRL_WOC | TB_LC_SX_CTRL_WOD | TB_LC_SX_CTRL_WOP |
+		  TB_LC_SX_CTRL_WOU4);
+
+	if (flags & TB_WAKE_ON_CONNECT)
+		ctrl |= TB_LC_SX_CTRL_WOC | TB_LC_SX_CTRL_WOD;
+	if (flags & TB_WAKE_ON_USB4)
+		ctrl |= TB_LC_SX_CTRL_WOU4;
+	if (flags & TB_WAKE_ON_PCIE)
+		ctrl |= TB_LC_SX_CTRL_WOP;
 
-	return ret;
+	return tb_sw_write(sw, &ctrl, TB_CFG_SWITCH, offset + TB_LC_SX_CTRL, 1);
 }
 
 /**
- * tb_lc_unconfigure_link() - Let LC know about unconfigured link
- * @sw: Switch to unconfigure
+ * tb_lc_set_wake() - Enable/disable wake
+ * @sw: Switch whose wakes to configure
+ * @flags: Wakeup flags (%0 to disable)
  *
- * Informs LC of both parent switch and @sw that the link between the
- * two does not exist anymore.
+ * For each LC sets wake bits accordingly.
  */
-void tb_lc_unconfigure_link(struct tb_switch *sw)
+int tb_lc_set_wake(struct tb_switch *sw, unsigned int flags)
 {
-	struct tb_port *up, *down;
+	int start, size, nlc, ret, i;
+	u32 desc;
 
-	if (sw->is_unplugged || !tb_route(sw) || tb_switch_is_icm(sw))
-		return;
+	if (sw->generation < 2)
+		return 0;
 
-	up = tb_upstream_port(sw);
-	down = tb_port_at(tb_route(sw), tb_to_switch(sw->dev.parent));
+	if (!tb_route(sw))
+		return 0;
 
-	tb_lc_configure_lane(up, false);
-	tb_lc_configure_lane(down, false);
+	ret = read_lc_desc(sw, &desc);
+	if (ret)
+		return ret;
+
+	/* Figure out number of link controllers */
+	nlc = desc & TB_LC_DESC_NLC_MASK;
+	start = (desc & TB_LC_DESC_SIZE_MASK) >> TB_LC_DESC_SIZE_SHIFT;
+	size = (desc & TB_LC_DESC_PORT_SIZE_MASK) >> TB_LC_DESC_PORT_SIZE_SHIFT;
+
+	/* For each link controller set sleep bit */
+	for (i = 0; i < nlc; i++) {
+		unsigned int offset = sw->cap_lc + start + i * size;
+
+		ret = tb_lc_set_wake_one(sw, offset, flags);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
 }
 
 /**