Commit 8a25a2e3 authored by FUJITA Tomonori's avatar FUJITA Tomonori Committed by Jakub Kicinski
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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: default avatarAndrew Lunn <andrew@lunn.ch>
Reviewed-by: default avatarAlice Ryhl <aliceryhl@google.com>
Reviewed-by: default avatarGary Guo <gary@garyguo.net>
Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@gmail.com>
Link: https://patch.msgid.link/20251105133126.3221948-1-fujita.tomonori@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent c04956cc

drivers/net/phy/qt2025.rs

+9 −1
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
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},
@@ -19,6 +20,7 @@ 
};

use kernel::prelude::*;

use kernel::sizes::{SZ_16K, SZ_8K};

use kernel::time::Delta;



kernel::module_phy_driver! {

    drivers: [PhyQT2025],
@@ -93,7 +95,13 @@ fn probe(dev: &mut phy::Device) -> Result<()> { 
        // 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(())

    }