Merge tag 'usb-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt changes for 6.9-rc1. Lots
  of tiny changes and forward progress to support new hardware and
  better support for existing devices. Included in here are:

   - Thunderbolt (i.e. USB4) updates for newer hardware and uses as more
     people start to use the hardware

   - default USB authentication mode Kconfig and documentation update to
     make it more obvious what is going on

   - USB typec updates and enhancements

   - usual dwc3 driver updates

   - usual xhci driver updates

   - function USB (i.e. gadget) driver updates and additions

   - new device ids for lots of drivers

   - loads of other small updates, full details in the shortlog

  All of these, including a "last minute regression fix" have been in
  linux-next with no reported issues"

* tag 'usb-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (185 commits)
  usb: usb-acpi: Fix oops due to freeing uninitialized pld pointer
  usb: gadget: net2272: Use irqflags in the call to net2272_probe_fin
  usb: gadget: tegra-xudc: Fix USB3 PHY retrieval logic
  phy: tegra: xusb: Add API to retrieve the port number of phy
  USB: gadget: pxa27x_udc: Remove unused of_gpio.h
  usb: gadget/snps_udc_plat: Remove unused of_gpio.h
  usb: ohci-pxa27x: Remove unused of_gpio.h
  usb: sl811-hcd: only defined function checkdone if QUIRK2 is defined
  usb: Clarify expected behavior of dev_bin_attrs_are_visible()
  xhci: Allow RPM on the USB controller (1022:43f7) by default
  usb: isp1760: remove SLAB_MEM_SPREAD flag usage
  usb: misc: onboard_hub: use pointer consistently in the probe function
  usb: gadget: fsl: Increase size of name buffer for endpoints
  usb: gadget: fsl: Add of device table to enable module autoloading
  usb: typec: tcpm: add support to set tcpc connector orientatition
  usb: typec: tcpci: add generic tcpci fallback compatible
  dt-bindings: usb: typec-tcpci: add tcpci fallback binding
  usb: gadget: fsl-udc: Replace custom log wrappers by dev_{err,warn,dbg,vdbg}
  usb: core: Set connect_type of ports based on DT node
  dt-bindings: usb: Add downstream facing ports to realtek binding
  ...

1 files changed, 34 insertions, 4 deletions

diff --git a/drivers/usb/typec/tcpm/tcpci_maxim_core.c b/drivers/usb/typec/tcpm/tcpci_maxim_core.c
index 7fb966fd639b32..eec3bcec119c1a 100644
--- a/drivers/usb/typec/tcpm/tcpci_maxim_core.c
+++ b/drivers/usb/typec/tcpm/tcpci_maxim_core.c
@@ -128,6 +128,7 @@ static void process_rx(struct max_tcpci_chip *chip, u16 status)
 	u8 count, frame_type, rx_buf[TCPC_RECEIVE_BUFFER_LEN];
 	int ret, payload_index;
 	u8 *rx_buf_ptr;
+	enum tcpm_transmit_type rx_type;
 
 	/*
 	 * READABLE_BYTE_COUNT: Indicates the number of bytes in the RX_BUF_BYTE_x registers
@@ -143,10 +144,23 @@ static void process_rx(struct max_tcpci_chip *chip, u16 status)
 	count = rx_buf[TCPC_RECEIVE_BUFFER_COUNT_OFFSET];
 	frame_type = rx_buf[TCPC_RECEIVE_BUFFER_FRAME_TYPE_OFFSET];
 
-	if (count == 0 || frame_type != TCPC_RX_BUF_FRAME_TYPE_SOP) {
+	switch (frame_type) {
+	case TCPC_RX_BUF_FRAME_TYPE_SOP1:
+		rx_type = TCPC_TX_SOP_PRIME;
+		break;
+	case TCPC_RX_BUF_FRAME_TYPE_SOP:
+		rx_type = TCPC_TX_SOP;
+		break;
+	default:
+		rx_type = TCPC_TX_SOP;
+		break;
+	}
+
+	if (count == 0 || (frame_type != TCPC_RX_BUF_FRAME_TYPE_SOP &&
+	    frame_type != TCPC_RX_BUF_FRAME_TYPE_SOP1)) {
 		max_tcpci_write16(chip, TCPC_ALERT, TCPC_ALERT_RX_STATUS);
 		dev_err(chip->dev, "%s\n", count ==  0 ? "error: count is 0" :
-			"error frame_type is not SOP");
+			"error frame_type is not SOP/SOP'");
 		return;
 	}
 
@@ -183,7 +197,7 @@ static void process_rx(struct max_tcpci_chip *chip, u16 status)
 	if (ret < 0)
 		return;
 
-	tcpm_pd_receive(chip->port, &msg);
+	tcpm_pd_receive(chip->port, &msg, rx_type);
 }
 
 static int max_tcpci_set_vbus(struct tcpci *tcpci, struct tcpci_data *tdata, bool source, bool sink)
@@ -309,8 +323,10 @@ static irqreturn_t _max_tcpci_irq(struct max_tcpci_chip *chip, u16 status)
 		if (ret < 0)
 			return ret;
 
-		if (reg_status & TCPC_FAULT_STATUS_VCONN_OC)
+		if (reg_status & TCPC_FAULT_STATUS_VCONN_OC) {
+			chip->veto_vconn_swap = true;
 			tcpm_port_error_recovery(chip->port);
+		}
 	}
 
 	if (status & TCPC_ALERT_EXTND) {
@@ -444,6 +460,18 @@ static void max_tcpci_check_contaminant(struct tcpci *tcpci, struct tcpci_data *
 		tcpm_port_clean(chip->port);
 }
 
+static bool max_tcpci_attempt_vconn_swap_discovery(struct tcpci *tcpci, struct tcpci_data *tdata)
+{
+	struct max_tcpci_chip *chip = tdata_to_max_tcpci(tdata);
+
+	if (chip->veto_vconn_swap) {
+		chip->veto_vconn_swap = false;
+		return false;
+	}
+
+	return true;
+}
+
 static int max_tcpci_probe(struct i2c_client *client)
 {
 	int ret;
@@ -478,6 +506,8 @@ static int max_tcpci_probe(struct i2c_client *client)
 	chip->data.vbus_vsafe0v = true;
 	chip->data.set_partner_usb_comm_capable = max_tcpci_set_partner_usb_comm_capable;
 	chip->data.check_contaminant = max_tcpci_check_contaminant;
+	chip->data.cable_comm_capable = true;
+	chip->data.attempt_vconn_swap_discovery = max_tcpci_attempt_vconn_swap_discovery;
 
 	max_tcpci_init_regs(chip);
 	chip->tcpci = tcpci_register_port(chip->dev, &chip->data);