[PATCH 15/26] net: stmmac: dwmac-qcom-ethqos: add support for the optional phy-supply

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski at linaro.org>

On sa8775p-ride we need to enable the power supply for the external PHY.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski at linaro.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index 2f6b9b419601..21f329d2f7eb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -8,6 +8,7 @@
 #include <linux/phy.h>
 #include <linux/phy/phy.h>
 #include <linux/property.h>
+#include <linux/regulator/consumer.h>
 
 #include "stmmac.h"
 #include "stmmac_platform.h"
@@ -692,6 +693,10 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
 	if (ret)
 		goto out_config_dt;
 
+	ret = devm_regulator_get_enable_optional(dev, "phy");
+	if (ret < 0 && ret != -ENODEV)
+		goto out_config_dt;
+
 	ethqos->serdes_phy = devm_phy_optional_get(dev, "serdes");
 	if (IS_ERR(ethqos->serdes_phy)) {
 		ret = PTR_ERR(ethqos->serdes_phy);
-- 
2.39.2