Merge tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

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

  With the advent of USB4, "Thunderbolt" has really become USB4, so the
  renaming of the Kconfig option and starting to share subsystem code
  has begun, hence both subsystems coming in through the same tree here.

  PHY driver updates also touched USB drivers, so that is coming in
  through here as well.

  Major stuff included in here are:
   - USB 4 initial support added (i.e. Thunderbolt)
   - musb driver updates
   - USB gadget driver updates
   - PHY driver updates
   - USB PHY driver updates
   - lots of USB serial stuff fixed up
   - USB typec updates
   - USB-IP fixes
   - lots of other smaller USB driver updates

  All of these have been in linux-next for a while now (the usb-serial
  tree is already tested in linux-next on its own before merged into
  here), with no reported issues"

[ Removed an incorrect compile test enablement for PHY_EXYNOS5250_SATA
  that causes configuration warnings    - Linus ]

* tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits)
  Doc: ABI: add usb charger uevent
  usb: phy: show USB charger type for user
  usb: cdns3: fix spelling mistake and rework grammar in text
  usb: phy: phy-gpio-vbus-usb: Convert to GPIO descriptors
  USB: serial: cyberjack: fix spelling mistake "To" -> "Too"
  USB: serial: ir-usb: simplify endpoint check
  USB: serial: ir-usb: make set_termios synchronous
  USB: serial: ir-usb: fix IrLAP framing
  USB: serial: ir-usb: fix link-speed handling
  USB: serial: ir-usb: add missing endpoint sanity check
  usb: typec: fusb302: fix "op-sink-microwatt" default that was in mW
  usb: typec: wcove: fix "op-sink-microwatt" default that was in mW
  usb: dwc3: pci: add ID for the Intel Comet Lake -V variant
  usb: typec: tcpci: mask event interrupts when remove driver
  usb: host: xhci-tegra: set MODULE_FIRMWARE for tegra186
  usb: chipidea: add inline for ci_hdrc_host_driver_init if host is not defined
  usb: chipidea: handle single role for usb role class
  usb: musb: fix spelling mistake: "periperal" -> "peripheral"
  phy: ti: j721e-wiz: Fix build error without CONFIG_OF_ADDRESS
  USB: usbfs: Always unlink URBs in reverse order
  ...

1 files changed, 90 insertions, 5 deletions

diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 4459bc68aa33..d5a6aac86327 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -189,7 +189,7 @@ int ucsi_resume(struct ucsi *ucsi)
 	u64 command;
 
 	/* Restore UCSI notification enable mask after system resume */
-	command = UCSI_SET_NOTIFICATION_ENABLE | UCSI_ENABLE_NTFY_ALL;
+	command = UCSI_SET_NOTIFICATION_ENABLE | ucsi->ntfy;
 
 	return ucsi_send_command(ucsi, command, NULL, 0);
 }
@@ -318,6 +318,82 @@ err:
 	return ret;
 }
 
+static int
+ucsi_register_altmodes_nvidia(struct ucsi_connector *con, u8 recipient)
+{
+	int max_altmodes = UCSI_MAX_ALTMODES;
+	struct typec_altmode_desc desc;
+	struct ucsi_altmode alt;
+	struct ucsi_altmode orig[UCSI_MAX_ALTMODES];
+	struct ucsi_altmode updated[UCSI_MAX_ALTMODES];
+	struct ucsi *ucsi = con->ucsi;
+	bool multi_dp = false;
+	u64 command;
+	int ret;
+	int len;
+	int i;
+	int k = 0;
+
+	if (recipient == UCSI_RECIPIENT_CON)
+		max_altmodes = con->ucsi->cap.num_alt_modes;
+
+	memset(orig, 0, sizeof(orig));
+	memset(updated, 0, sizeof(updated));
+
+	/* First get all the alternate modes */
+	for (i = 0; i < max_altmodes; i++) {
+		memset(&alt, 0, sizeof(alt));
+		command = UCSI_GET_ALTERNATE_MODES;
+		command |= UCSI_GET_ALTMODE_RECIPIENT(recipient);
+		command |= UCSI_GET_ALTMODE_CONNECTOR_NUMBER(con->num);
+		command |= UCSI_GET_ALTMODE_OFFSET(i);
+		len = ucsi_run_command(con->ucsi, command, &alt, sizeof(alt));
+		/*
+		 * We are collecting all altmodes first and then registering.
+		 * Some type-C device will return zero length data beyond last
+		 * alternate modes. We should not return if length is zero.
+		 */
+		if (len < 0)
+			return len;
+
+		/* We got all altmodes, now break out and register them */
+		if (!len || !alt.svid)
+			break;
+
+		orig[k].mid = alt.mid;
+		orig[k].svid = alt.svid;
+		k++;
+	}
+	/*
+	 * Update the original altmode table as some ppms may report
+	 * multiple DP altmodes.
+	 */
+	if (recipient == UCSI_RECIPIENT_CON)
+		multi_dp = ucsi->ops->update_altmodes(ucsi, orig, updated);
+
+	/* now register altmodes */
+	for (i = 0; i < max_altmodes; i++) {
+		memset(&desc, 0, sizeof(desc));
+		if (multi_dp && recipient == UCSI_RECIPIENT_CON) {
+			desc.svid = updated[i].svid;
+			desc.vdo = updated[i].mid;
+		} else {
+			desc.svid = orig[i].svid;
+			desc.vdo = orig[i].mid;
+		}
+		desc.roles = TYPEC_PORT_DRD;
+
+		if (!desc.svid)
+			return 0;
+
+		ret = ucsi_register_altmode(con, &desc, recipient);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
 static int ucsi_register_altmodes(struct ucsi_connector *con, u8 recipient)
 {
 	int max_altmodes = UCSI_MAX_ALTMODES;
@@ -336,6 +412,9 @@ static int ucsi_register_altmodes(struct ucsi_connector *con, u8 recipient)
 	if (recipient == UCSI_RECIPIENT_SOP && con->partner_altmode[0])
 		return 0;
 
+	if (con->ucsi->ops->update_altmodes)
+		return ucsi_register_altmodes_nvidia(con, recipient);
+
 	if (recipient == UCSI_RECIPIENT_CON)
 		max_altmodes = con->ucsi->cap.num_alt_modes;
 
@@ -589,6 +668,11 @@ void ucsi_connector_change(struct ucsi *ucsi, u8 num)
 {
 	struct ucsi_connector *con = &ucsi->connector[num - 1];
 
+	if (!(ucsi->ntfy & UCSI_ENABLE_NTFY_CONNECTOR_CHANGE)) {
+		dev_dbg(ucsi->dev, "Bogus connector change event\n");
+		return;
+	}
+
 	if (!test_and_set_bit(EVENT_PENDING, &ucsi->flags))
 		schedule_work(&con->work);
 }
@@ -656,7 +740,7 @@ static int ucsi_role_cmd(struct ucsi_connector *con, u64 command)
 		ucsi_reset_ppm(con->ucsi);
 		mutex_unlock(&con->ucsi->ppm_lock);
 
-		c = UCSI_SET_NOTIFICATION_ENABLE | UCSI_ENABLE_NTFY_ALL;
+		c = UCSI_SET_NOTIFICATION_ENABLE | con->ucsi->ntfy;
 		ucsi_send_command(con->ucsi, c, NULL, 0);
 
 		ucsi_reset_connector(con, true);
@@ -890,8 +974,8 @@ int ucsi_init(struct ucsi *ucsi)
 	}
 
 	/* Enable basic notifications */
-	command = UCSI_SET_NOTIFICATION_ENABLE;
-	command |= UCSI_ENABLE_NTFY_CMD_COMPLETE | UCSI_ENABLE_NTFY_ERROR;
+	ucsi->ntfy = UCSI_ENABLE_NTFY_CMD_COMPLETE | UCSI_ENABLE_NTFY_ERROR;
+	command = UCSI_SET_NOTIFICATION_ENABLE | ucsi->ntfy;
 	ret = ucsi_run_command(ucsi, command, NULL, 0);
 	if (ret < 0)
 		goto err_reset;
@@ -923,7 +1007,8 @@ int ucsi_init(struct ucsi *ucsi)
 	}
 
 	/* Enable all notifications */
-	command = UCSI_SET_NOTIFICATION_ENABLE | UCSI_ENABLE_NTFY_ALL;
+	ucsi->ntfy = UCSI_ENABLE_NTFY_ALL;
+	command = UCSI_SET_NOTIFICATION_ENABLE | ucsi->ntfy;
 	ret = ucsi_run_command(ucsi, command, NULL, 0);
 	if (ret < 0)
 		goto err_unregister;