netdev - Subject: [PATCH v3 net-next 2/4] net:phy: Remove phy_reset_after_clk

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Date:   Fri, 15 Jan 2021 17:21:56 +0000
From:   "Badel, Laurent" <LaurentBadel@...on.com>
To:     "davem@...emloft.net" <davem@...emloft.net>,
        "m.felsch@...gutronix.de" <m.felsch@...gutronix.de>,
        "fugang.duan@....com" <fugang.duan@....com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "andrew@...n.ch" <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "richard.leitner@...data.com" <richard.leitner@...data.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "marex@...x.de" <marex@...x.de>
Subject: Subject: [PATCH v3 net-next 2/4] net:phy: Remove
 phy_reset_after_clk_enable()

Extraneous PHY reset is not needed if the PHY is kept in reset when the
REF_CLK is turned off, so remove phy_reset_after_clk_enable() which is not
needed anymore. 

Signed-off-by: Laurent Badel <laurentbadel@...on.com>
---
 drivers/net/phy/phy_device.c | 24 ------------------------
 include/linux/phy.h          |  1 -
 2 files changed, 25 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 80c2e646c093..13bae0ce31b8 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1798,30 +1798,6 @@ int phy_loopback(struct phy_device *phydev, bool enable)
 }
 EXPORT_SYMBOL(phy_loopback);
 
-/**
- * phy_reset_after_clk_enable - perform a PHY reset if needed
- * @phydev: target phy_device struct
- *
- * Description: Some PHYs are known to need a reset after their refclk was
- *   enabled. This function evaluates the flags and perform the reset if it's
- *   needed. Returns < 0 on error, 0 if the phy wasn't reset and 1 if the phy
- *   was reset.
- */
-int phy_reset_after_clk_enable(struct phy_device *phydev)
-{
-	if (!phydev || !phydev->drv)
-		return -ENODEV;
-
-	if (phydev->drv->flags & PHY_RST_AFTER_CLK_EN) {
-		phy_device_reset(phydev, 1);
-		phy_device_reset(phydev, 0);
-		return 1;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(phy_reset_after_clk_enable);
-
 /* Generic PHY support and helper functions */
 
 /**
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 9effb511acde..58b4a2d45df9 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1390,7 +1390,6 @@ int phy_speed_down(struct phy_device *phydev, bool sync);
 int phy_speed_up(struct phy_device *phydev);
 
 int phy_restart_aneg(struct phy_device *phydev);
-int phy_reset_after_clk_enable(struct phy_device *phydev);
 
 #if IS_ENABLED(CONFIG_PHYLIB)
 int phy_start_cable_test(struct phy_device *phydev,
-- 
2.17.1



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