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[88.207.15.187]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6ae1568e5a3sm744042a12.20.2026.09.30.05.23.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Sep 2026 05:23:14 -0700 (PDT) From: Robert Marko To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org, pabeni@redhat.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, hkallweit1@gmail.com, lxu@maxlinear.com, michael@walle.cc, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: luka.perkov@sartura.hr, Robert Marko Subject: [PATCH 3/5] net: phy: mxl-gpy: release MxL86211C Super Isolate Date: Wed, 30 Sep 2026 14:22:15 +0200 Message-ID: <20260930122305.293686-3-robert.marko@sartura.hr> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930122305.293686-1-robert.marko@sartura.hr> References: <20260930122305.293686-1-robert.marko@sartura.hr> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The MxL86211C can be strapped into Super Isolate mode, leaving the PHY halted after reset until software releases it. Clear VSPEC1_PM_CTRL.SI after registering the MDIO voltage regulator and before the generic GPY initialization accesses the PHY. Signed-off-by: Robert Marko --- drivers/net/phy/mxl-gpy.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/phy/mxl-gpy.c b/drivers/net/phy/mxl-gpy.c index 4cbbfae046317..790075632fc3f 100644 --- a/drivers/net/phy/mxl-gpy.c +++ b/drivers/net/phy/mxl-gpy.c @@ -115,6 +115,7 @@ /* Packet Manager Control */ #define VSPEC1_PM_CTRL 0x0c #define VSPEC1_PM_CTRL_MDIO_VOL BIT(14) +#define VSPEC1_PM_CTRL_SI BIT(12) /* Super Isolate */ /* Temperature sensor */ #define VSPEC1_TEMP_STA 0x0E @@ -446,10 +447,6 @@ static int mxl86211c_probe(struct phy_device *phydev) struct regulator_dev *rdev; int ret; - ret = gpy_probe(phydev); - if (ret) - return ret; - config.dev = dev; config.driver_data = phydev; @@ -459,7 +456,15 @@ static int mxl86211c_probe(struct phy_device *phydev) return PTR_ERR(rdev); } - return 0; + ret = phy_modify_mmd(phydev, MDIO_MMD_VEND1, VSPEC1_PM_CTRL, + VSPEC1_PM_CTRL_SI, + 0); + if (ret) + return ret; + + ret = gpy_probe(phydev); + + return ret; } static bool gpy_sgmii_need_reaneg(struct phy_device *phydev) -- 2.55.0