[PATCH v4 3/9] gpu: nova-core: Replace module_pci_driver! with explicit module init

[Timur Tabi <ttabi@nvidia.com>]

Replace the module_pci_driver! macro with an explicit module
initialization using the standard module! macro and InPlaceModule
trait implementation.  No functional change intended, with the
exception that the driver now prints a message when loaded.

This change is necessary so that we can create a top-level "nova_core"
debugfs entry when the driver is loaded.

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
---
 drivers/gpu/nova-core/nova_core.rs | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/nova-core/nova_core.rs b/drivers/gpu/nova-core/nova_core.rs
index c1121e7c64c5..d0df8db3693d 100644
--- a/drivers/gpu/nova-core/nova_core.rs
+++ b/drivers/gpu/nova-core/nova_core.rs
@@ -2,6 +2,13 @@
 
 //! Nova Core GPU Driver
 
+use kernel::{
+    error::Error,
+    pci,
+    prelude::*,
+    InPlaceModule, //
+};
+
 #[macro_use]
 mod bitfield;
 
@@ -20,13 +27,26 @@
 
 pub(crate) const MODULE_NAME: &kernel::str::CStr = <LocalModule as kernel::ModuleMetadata>::NAME;
 
-kernel::module_pci_driver! {
-    type: driver::NovaCore,
+#[pin_data]
+struct NovaCoreModule {
+    #[pin]
+    _driver: kernel::driver::Registration<pci::Adapter<driver::NovaCore>>,
+}
+
+impl InPlaceModule for NovaCoreModule {
+    fn init(module: &'static kernel::ThisModule) -> impl PinInit<Self, Error> {
+        try_pin_init!(Self {
+            _driver <- kernel::driver::Registration::new(MODULE_NAME, module),
+        })
+    }
+}
+
+module! {
+    type: NovaCoreModule,
     name: "NovaCore",
     authors: ["Danilo Krummrich"],
     description: "Nova Core GPU driver",
     license: "GPL v2",
-    firmware: [],
 }
 
 kernel::module_firmware!(firmware::ModInfoBuilder);
-- 
2.52.0