[PATCH 2/2] Reset PHY in phy_init_hw() before interrupt configuration

["Badel, Laurent" <LaurentBadel@eaton.com>]

Description: this patch adds a reset of the PHY in phy_init_hw() 
for PHY drivers bearing the PHY_RST_AFTER_CLK_EN flag.

Rationale: due to the PHY reset reverting the interrupt mask to default, 
it is necessary to either perform the reset before PHY configuration, 
or re-configure the PHY after reset. This patch implements the former
as it is simpler and more generic. 

Fixes: 1b0a83ac04e383e3bed21332962b90710fcf2828 ("net: fec: add phy_reset_after_clk_enable() support")
Signed-off-by: Laurent Badel <laurentbadel@eaton.com>

---
 drivers/net/phy/phy_device.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 28e3c5c0e..2cc511364 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1082,8 +1082,11 @@ int phy_init_hw(struct phy_device *phydev)
 {
 	int ret = 0;
 
-	/* Deassert the reset signal */
-	phy_device_reset(phydev, 0);
+	/* Deassert the reset signal
+	 * If the PHY needs a reset, do it now
+	 */
+	if (!phy_reset_after_clk_enable(phydev))
+		phy_device_reset(phydev, 0);
 
 	if (!phydev->drv)
 		return 0;
-- 
2.17.1



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