From 73e29110a94348e377bfeb720f8043130afe9120 Mon Sep 17 00:00:00 2001
From: Adam Sasine <adam.sasine@gmail.com>
Date: Wed, 18 Feb 2026 13:22:31 -0800
Subject: [PATCH 1/3] Add bit 15 to DpConfig register

---
 device.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/device.yaml b/device.yaml
index 44ea408..8fe92cb 100644
--- a/device.yaml
+++ b/device.yaml
@@ -1155,6 +1155,15 @@ DpConfig:
         Usb: 0x0
         Dp: 0x1
         Reserved: catch_all
+    UsbDataPath:
+      base: uint
+      start: 15
+      end: 16
+      description: USB data path support.
+      conversion:
+        name: UsbDataPath
+        MayBeRequired: 0x0
+        NotRequired: 0x1
     DfpdPinAssignment:
       base: uint
       start: 16

From 093e7523adb0feba5e1a7d47727ff94ad5183cb3 Mon Sep 17 00:00:00 2001
From: Adam Sasine <adam.sasine@gmail.com>
Date: Mon, 23 Feb 2026 08:51:04 -0800
Subject: [PATCH 2/3] Add bit 54 to TbtConfig register (0x54)

---
 device.yaml | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/device.yaml b/device.yaml
index 8fe92cb..e0026a9 100644
--- a/device.yaml
+++ b/device.yaml
@@ -1161,7 +1161,7 @@ DpConfig:
       end: 16
       description: USB data path support.
       conversion:
-        name: UsbDataPath
+        name: DpUsbDataPath
         MayBeRequired: 0x0
         NotRequired: 0x1
     DfpdPinAssignment:
@@ -1333,6 +1333,15 @@ TbtConfig:
       base: bool
       start: 49
       description: Assert this bit to enable TBT auto-entry.
+    UsbDataPath:
+      base: uint
+      start: 54
+      end: 55
+      description: USB data path support.
+      conversion:
+        name: TbtUsbDataPath
+        MayBeRequired: 0x0
+        NotRequired: 0x1
     SourceVCONNDelay:
       base: uint
       start: 56

From 221fc2ee4c7db9a4f4ffad9b3c13160bd72cab12 Mon Sep 17 00:00:00 2001
From: Adam Sasine <adam.sasine@gmail.com>
Date: Mon, 23 Feb 2026 08:53:45 -0800
Subject: [PATCH 3/3] Add modify_tbt_config method

---
 src/asynchronous/internal/mod.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/asynchronous/internal/mod.rs b/src/asynchronous/internal/mod.rs
index 06c2882..7cecf2b 100644
--- a/src/asynchronous/internal/mod.rs
+++ b/src/asynchronous/internal/mod.rs
@@ -515,6 +515,17 @@ impl<B: I2c> Tps6699x<B> {
             .await
     }
 
+    /// Modify Tbt config settings
+    pub async fn modify_tbt_config(
+        &mut self,
+        port: LocalPortId,
+        f: impl FnOnce(&mut registers::field_sets::TbtConfig) -> registers::field_sets::TbtConfig,
+    ) -> Result<registers::field_sets::TbtConfig, Error<B::Error>> {
+        let port = self.borrow_port(port)?;
+        let mut registers = port.into_registers();
+        registers.tbt_config().modify_async(|r| f(r)).await
+    }
+
     /// Set unconstrained power on a port
     pub async fn set_unconstrained_power(&mut self, port: LocalPortId, enable: bool) -> Result<(), Error<B::Error>> {
         let mut control = self.get_port_control(port).await?;