netdev - [PATCH RFC v2 net-next 4/4] net: dsa: mv88e6xxx: do not enable SERDESes in mv88e6xxx

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Date:   Sat, 17 Aug 2019 21:14:52 +0200
From:   Marek Behún <marek.behun@....cz>
To:     netdev@...r.kernel.org
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Marek Behún <marek.behun@....cz>
Subject: [PATCH RFC v2 net-next 4/4] net: dsa: mv88e6xxx: do not enable SERDESes in mv88e6xxx_setup

CPU/DSA ports are now enabled/disabled in the .port_enable() and
.port_disable() methods. We do not need to enable SERDESes for these
ports in mv88e6xxx_setup.

Signed-off-by: Marek Behún <marek.behun@....cz>
Cc: Andrew Lunn <andrew@...n.ch>
Cc: Florian Fainelli <f.fainelli@...il.com>
Cc: Vladimir Oltean <olteanv@...il.com>
Cc: Vivien Didelot <vivien.didelot@...il.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index ad27f2fc5c33..cca9f1e2038f 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2151,16 +2151,6 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 	if (err)
 		return err;
 
-	/* Enable the SERDES interface for DSA and CPU ports. Normal
-	 * ports SERDES are enabled when the port is enabled, thus
-	 * saving a bit of power.
-	 */
-	if ((dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port))) {
-		err = mv88e6xxx_serdes_power(chip, port, true);
-		if (err)
-			return err;
-	}
-
 	/* Port Control 2: don't force a good FCS, set the maximum frame size to
 	 * 10240 bytes, disable 802.1q tags checking, don't discard tagged or
 	 * untagged frames on this port, do a destination address lookup on all
-- 
2.21.0