drm/tyr: separate driver type from driver data

Introduce TyrPlatformDriver as a unit struct for the platform::Driver
trait implementation and keep TyrPlatformDriverData for the private
driver data.

Reviewed-by: Gary Guo <gary@garyguo.net>
Tested-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://patch.msgid.link/20260529000106.2257996-2-dakr@kernel.org
Signed-off-by: Alice Ryhl <aliceryhl@google.com>

Author: Danilo Krummrich

drivers/gpu/drm/tyr/driver.rs

@@ -51,6 +51,8 @@ pub(crate) struct TyrDrmDriver;
 /// Convenience type alias for the DRM device type for this driver.
 pub(crate) type TyrDrmDevice = drm::Device<TyrDrmDriver>;
 
+pub(crate) struct TyrPlatformDriver;
+
 #[pin_data(PinnedDrop)]
 pub(crate) struct TyrPlatformDriverData {
     _device: ARef<TyrDrmDevice>,
@@ -93,22 +95,22 @@ fn issue_soft_reset(dev: &Device<Bound>, iomem: &Devres<IoMem>) -> Result {
 kernel::of_device_table!(
     OF_TABLE,
     MODULE_OF_TABLE,
-    <TyrPlatformDriverData as platform::Driver>::IdInfo,
+    <TyrPlatformDriver as platform::Driver>::IdInfo,
     [
         (of::DeviceId::new(c"rockchip,rk3588-mali"), ()),
         (of::DeviceId::new(c"arm,mali-valhall-csf"), ())
     ]
 );
 
-impl platform::Driver for TyrPlatformDriverData {
+impl platform::Driver for TyrPlatformDriver {
     type IdInfo = ();
-    type Data<'bound> = Self;
+    type Data<'bound> = TyrPlatformDriverData;
     const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = Some(&OF_TABLE);
 
     fn probe<'bound>(
         pdev: &'bound platform::Device<Core<'_>>,
         _info: Option<&'bound Self::IdInfo>,
-    ) -> impl PinInit<Self, Error> + 'bound {
+    ) -> impl PinInit<Self::Data<'bound>, Error> + 'bound {
         let core_clk = Clk::get(pdev.as_ref(), Some(c"core"))?;
         let stacks_clk = OptionalClk::get(pdev.as_ref(), Some(c"stacks"))?;
         let coregroup_clk = OptionalClk::get(pdev.as_ref(), Some(c"coregroup"))?;

drivers/gpu/drm/tyr/tyr.rs

@@ -5,7 +5,7 @@
 //! The name "Tyr" is inspired by Norse mythology, reflecting Arm's tradition of
 //! naming their GPUs after Nordic mythological figures and places.
 
-use crate::driver::TyrPlatformDriverData;
+use crate::driver::TyrPlatformDriver;
 
 mod driver;
 mod file;
@@ -14,7 +14,7 @@ mod gpu;
 mod regs;
 
 kernel::module_platform_driver! {
-    type: TyrPlatformDriverData,
+    type: TyrPlatformDriver,
     name: "tyr",
     authors: ["The Tyr driver authors"],
     description: "Arm Mali Tyr DRM driver",