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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Doug Berger <opendmb@gmail.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        "David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.19 66/79] net: phy: bcm7xxx: define soft_reset for 40nm EPHY
Date:   Fri,  8 Nov 2019 19:50:46 +0100
Message-Id: <20191108174822.513246011@linuxfoundation.org>
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From: Doug Berger <opendmb@gmail.com>

[ Upstream commit fe586b823372a9f43f90e2c6aa0573992ce7ccb7 ]

The internal 40nm EPHYs use a "Workaround for putting the PHY in
IDDQ mode." These PHYs require a soft reset to restore functionality
after they are powered back up.

This commit defines the soft_reset function to use genphy_soft_reset
during phy_init_hw to accommodate this.

Fixes: 6e2d85ec0559 ("net: phy: Stop with excessive soft reset")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/bcm7xxx.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/phy/bcm7xxx.c
+++ b/drivers/net/phy/bcm7xxx.c
@@ -643,6 +643,7 @@ static int bcm7xxx_28nm_probe(struct phy
 	.name           = _name,					\
 	.features       = PHY_BASIC_FEATURES,				\
 	.flags          = PHY_IS_INTERNAL,				\
+	.soft_reset	= genphy_soft_reset,				\
 	.config_init    = bcm7xxx_config_init,				\
 	.suspend        = bcm7xxx_suspend,				\
 	.resume         = bcm7xxx_config_init,				\