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[180.53.81.189]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-720bc1ea6a1sm1743403b3a.74.2024.10.31.18.02.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Oct 2024 18:02:42 -0700 (PDT) From: FUJITA Tomonori To: anna-maria@linutronix.de, frederic@kernel.org, tglx@linutronix.de, jstultz@google.com, sboyd@kernel.org, linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org, rust-for-linux@vger.kernel.org, andrew@lunn.ch, hkallweit1@gmail.com, tmgross@umich.edu, ojeda@kernel.org, alex.gaynor@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, benno.lossin@proton.me, a.hindborg@samsung.com, aliceryhl@google.com, arnd@arndb.de Subject: [PATCH v5 7/7] net: phy: qt2025: Wait until PHY becomes ready Date: Fri, 1 Nov 2024 10:01:21 +0900 Message-ID: <20241101010121.69221-8-fujita.tomonori@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241101010121.69221-1-fujita.tomonori@gmail.com> References: <20241101010121.69221-1-fujita.tomonori@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Wait until a PHY becomes ready in the probe callback by using readx_poll_timeout function. Signed-off-by: FUJITA Tomonori --- drivers/net/phy/qt2025.rs | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/qt2025.rs b/drivers/net/phy/qt2025.rs index 28d8981f410b..f7480c19d4cc 100644 --- a/drivers/net/phy/qt2025.rs +++ b/drivers/net/phy/qt2025.rs @@ -18,7 +18,9 @@ DeviceId, Driver, }; use kernel::prelude::*; +use kernel::readx_poll_timeout; use kernel::sizes::{SZ_16K, SZ_8K}; +use kernel::time::Delta; =20 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)?; =20 - // TODO: sleep here until the hw becomes ready. + readx_poll_timeout!( + || dev.read(C45::new(Mmd::PCS, 0xd7fd)), + |val| val !=3D 0x00 && val !=3D 0x10, + Delta::from_millis(50), + Delta::from_secs(3) + )?; + Ok(()) } =20 --=20 2.43.0