net: phy: qt2025: Wait until PHY becomes ready

Wait until a PHY becomes ready in the probe callback by
using read_poll_timeout function.

Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Alice Ryhl <[email protected]>
Reviewed-by: Gary Guo <[email protected]>
Signed-off-by: FUJITA Tomonori <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Author: fujita

drivers/net/phy/qt2025.rs

@@ -12,13 +12,15 @@
 use kernel::c_str;
 use kernel::error::code;
 use kernel::firmware::Firmware;
+use kernel::io::poll::read_poll_timeout;
 use kernel::net::phy::{
     self,
     reg::{Mmd, C45},
     Driver,
 };
 use kernel::prelude::*;
 use kernel::sizes::{SZ_16K, SZ_8K};
+use kernel::time::Delta;
 
 kernel::module_phy_driver! {
     drivers: [PhyQT2025],
@@ -93,7 +95,13 @@ impl Driver for PhyQT2025 {
         // The micro-controller will start running from SRAM.
         dev.write(C45::new(Mmd::PCS, 0xe854), 0x0040)?;
 
-        // TODO: sleep here until the hw becomes ready.
+        read_poll_timeout(
+            || dev.read(C45::new(Mmd::PCS, 0xd7fd)),
+            |val| *val != 0x00 && *val != 0x10,
+            Delta::from_millis(50),
+            Delta::from_secs(3),
+        )?;
+
         Ok(())
     }