From cd629f729140fae72dbe74cbc8f993c14372800b Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 6 Nov 2018 15:15:16 -0800
Subject: [PATCH 14/35] net: dsa: bcm_sf2: Turn on PHY to allow successful
registration
Git-commit: c04a17d2a9ccf1eaba1c5a56f83e997540a70556
Patch-mainline: v5.0-rc1
References: git-fixes
We are binding to the PHY using the SF2 slave MDIO bus that we create,
binding involves reading the PHY's MII_PHYSID1/2 which won't be possible
if the PHY is turned off. Temporarily turn it on/off for the bus probing
to succeeed. This fixes unbind/bind problems where the port connecting
to that PHY would be in error since it could not connect to it.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
drivers/net/dsa/bcm_sf2.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 1c4af75ffe9b..e8a65d36f7ae 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -1216,12 +1216,16 @@ static int bcm_sf2_sw_probe(struct platform_device *pdev)
return ret;
}
+ bcm_sf2_gphy_enable_set(priv->dev->ds, true);
+
ret = bcm_sf2_mdio_register(ds);
if (ret) {
pr_err("failed to register MDIO bus\n");
return ret;
}
+ bcm_sf2_gphy_enable_set(priv->dev->ds, false);
+
ret = bcm_sf2_cfp_rst(priv);
if (ret) {
pr_err("failed to reset CFP\n");
--
2.16.4