linux-kernel - [PATCH 2/2] net: phy: dp83640: Read strapped configuration settings

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Message-Id: <20180405114424.8519-2-esben.haabendal@gmail.com>
Date:   Thu,  5 Apr 2018 13:44:24 +0200
From:   esben.haabendal@...il.com
To:     Richard Cochran <richardcochran@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        netdev@...r.kernel.org (open list:PTP HARDWARE CLOCK SUPPORT),
        linux-kernel@...r.kernel.org (open list)
Cc:     Esben Haabendal <eha@...f.com>,
        Rasmus Villemoes <rasmus.villemoes@...vas.dk>
Subject: [PATCH 2/2] net: phy: dp83640: Read strapped configuration settings

From: Esben Haabendal <eha@...f.com>

Read configration settings, to allow automatic forced speed/duplex setup
by hardware strapping.

Signed-off-by: Esben Haabendal <eha@...f.com>
Cc: Rasmus Villemoes <rasmus.villemoes@...vas.dk>
---
 drivers/net/phy/dp83640.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index 654f42d00092..01e21b4998ad 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -1134,6 +1134,10 @@ static int dp83640_probe(struct phy_device *phydev)
 	if (!dp83640)
 		goto no_memory;
 
+	err = genphy_read_config(phydev);
+	if (err)
+		goto no_config;
+
 	dp83640->phydev = phydev;
 	INIT_DELAYED_WORK(&dp83640->ts_work, rx_timestamp_work);
 
@@ -1166,6 +1170,7 @@ static int dp83640_probe(struct phy_device *phydev)
 
 no_register:
 	clock->chosen = NULL;
+no_config:
 	kfree(dp83640);
 no_memory:
 	dp83640_clock_put(clock);
-- 
2.16.3