[PATCH 2/4] net: mvneta: add SFP TX disable handling

[Robert Marko <robert.marko@sartura.hr>]

Add support for handling SFP TX disable for MVNETA in the same fashion as
to what MVPP2 is doing in order to enable using SFP-s.

This allows using ethernet on SFP only boards.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
---
 drivers/net/mvneta.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/mvneta.c b/drivers/net/mvneta.c
index 4a4268c2b2..53989d9f46 100644
--- a/drivers/net/mvneta.c
+++ b/drivers/net/mvneta.c
@@ -286,6 +286,7 @@ struct mvneta_port {
 	struct phy_device *phydev;
 #if CONFIG_IS_ENABLED(DM_GPIO)
 	struct gpio_desc phy_reset_gpio;
+	struct gpio_desc phy_tx_disable_gpio;
 #endif
 	struct mii_dev *bus;
 };
@@ -1770,11 +1771,17 @@ static int mvneta_probe(struct udevice *dev)
 	gpio_request_by_name(dev, "phy-reset-gpios", 0,
 			     &pp->phy_reset_gpio, GPIOD_IS_OUT);
 
+	gpio_request_by_name(dev, "marvell,sfp-tx-disable-gpio", 0,
+			     &pp->phy_tx_disable_gpio, GPIOD_IS_OUT);
+
 	if (dm_gpio_is_valid(&pp->phy_reset_gpio)) {
 		dm_gpio_set_value(&pp->phy_reset_gpio, 1);
 		mdelay(10);
 		dm_gpio_set_value(&pp->phy_reset_gpio, 0);
 	}
+
+	if (dm_gpio_is_valid(&pp->phy_tx_disable_gpio))
+		dm_gpio_set_value(&pp->phy_tx_disable_gpio, 0);
 #endif
 
 	return board_network_enable(bus);
-- 
2.35.1