Workaround to support single port TPS66993 variant

examples/rt685s-evk/Cargo.toml

@@ -5,8 +5,7 @@ edition = "2021"
 rust-version = "1.79"
 
 [dependencies]
-#git = "https://github.com/pop-project/embassy-imxrt"
-embassy-imxrt = { path = "../../../embassy-imxrt", features = [
+embassy-imxrt = { git = "https://github.com/pop-project/embassy-imxrt", features = [
     "defmt",
     "time-driver",
     "time",

examples/rt685s-evk/src/bin/ev1.rs

@@ -80,11 +80,11 @@ async fn main(spawner: Spawner) {
     });
 
     static CONTROLLER0: StaticCell<Controller<'static>> = StaticCell::new();
-    let controller0 = CONTROLLER0.init(Controller::new(I2cDevice::new(bus), ADDR0).unwrap());
+    let controller0 = CONTROLLER0.init(Controller::new(I2cDevice::new(bus), ADDR0, false).unwrap());
     let (pd0, interrupt0) = controller0.make_parts();
 
     static CONTROLLER1: StaticCell<Controller<'static>> = StaticCell::new();
-    let controller1 = CONTROLLER1.init(Controller::new(I2cDevice::new(bus), ADDR1).unwrap());
+    let controller1 = CONTROLLER1.init(Controller::new(I2cDevice::new(bus), ADDR1, true).unwrap());
     let (pd1, interrupt1) = controller1.make_parts();
 
     spawner.must_spawn(interrupt_task(int_in, interrupt0, interrupt1));

examples/rt685s-evk/src/bin/main.rs

@@ -78,7 +78,7 @@ async fn main(spawner: Spawner) {
     let device = I2cDevice::new(bus);
 
     static CONTROLLER: StaticCell<Controller<'static>> = StaticCell::new();
-    let controller = CONTROLLER.init(Controller::new(device, ADDR0).unwrap());
+    let controller = CONTROLLER.init(Controller::new(device, ADDR0, true).unwrap());
     let (pd, interrupt) = controller.make_parts();
 
     spawner.must_spawn(interrupt_task(int_in, interrupt));

src/asynchronous/embassy/mod.rs

@@ -30,14 +30,16 @@ pub struct Controller<M: RawMutex, B: I2c> {
     inner: Mutex<M, internal::Tps6699x<B>>,
     interrupt_waker: Signal<NoopRawMutex, (IntEventBus1, IntEventBus1)>,
     interrupts_enabled: [AtomicBool; NUM_PORTS],
+    hack_disable_port_1: AtomicBool,
 }
 
 impl<M: RawMutex, B: I2c> Controller<M, B> {
-    pub fn new(bus: B, addr: [u8; NUM_PORTS]) -> Result<Self, Error<B::Error>> {
+    pub fn new(bus: B, addr: [u8; NUM_PORTS], hack_disable_port_1: bool) -> Result<Self, Error<B::Error>> {
         Ok(Self {
             inner: Mutex::new(internal::Tps6699x::new(bus, addr)),
             interrupt_waker: Signal::new(),
             interrupts_enabled: [AtomicBool::new(true), AtomicBool::new(true)],
+            hack_disable_port_1: AtomicBool::new(hack_disable_port_1),
         })
     }
 
@@ -321,11 +323,19 @@ impl<'a, M: RawMutex, B: I2c> Interrupt<'a, M, B> {
                 self.controller.interrupts_enabled[0].load(core::sync::atomic::Ordering::SeqCst),
                 self.controller.interrupts_enabled[1].load(core::sync::atomic::Ordering::SeqCst),
             ];
+            let hack_disable_port_1 = self
+                .controller
+                .hack_disable_port_1
+                .load(core::sync::atomic::Ordering::SeqCst);
 
             let mut inner = self.lock_inner().await;
             for port in 0..NUM_PORTS {
                 let port_id = PortId(port as u8);
 
+                if port_id == PORT1 && hack_disable_port_1 {
+                    continue;
+                }
+
                 if !interrupts_enabled[port] {
                     continue;
                 }