Merging upstream version 4.19.304.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 10 insertions, 3 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
index 7e2e79ded..df7fc6b67 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
@@ -57,6 +57,7 @@ struct stm32_ops {
 	int (*parse_data)(struct stm32_dwmac *dwmac,
 			  struct device *dev);
 	u32 syscfg_eth_mask;
+	bool clk_rx_enable_in_suspend;
 };
 
 static int stm32_dwmac_init(struct plat_stmmacenet_data *plat_dat)
@@ -74,7 +75,8 @@ static int stm32_dwmac_init(struct plat_stmmacenet_data *plat_dat)
 	if (ret)
 		return ret;
 
-	if (!dwmac->dev->power.is_suspended) {
+	if (!dwmac->ops->clk_rx_enable_in_suspend ||
+	    !dwmac->dev->power.is_suspended) {
 		ret = clk_prepare_enable(dwmac->clk_rx);
 		if (ret) {
 			clk_disable_unprepare(dwmac->clk_tx);
@@ -413,7 +415,8 @@ static struct stm32_ops stm32mp1_dwmac_data = {
 	.suspend = stm32mp1_suspend,
 	.resume = stm32mp1_resume,
 	.parse_data = stm32mp1_parse_data,
-	.syscfg_eth_mask = SYSCFG_MP1_ETH_MASK
+	.syscfg_eth_mask = SYSCFG_MP1_ETH_MASK,
+	.clk_rx_enable_in_suspend = true
 };
 
 static const struct of_device_id stm32_dwmac_match[] = {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index 093a223fe..a81df6806 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -360,7 +360,11 @@ int stmmac_mdio_register(struct net_device *ndev)
 	new_bus->parent = priv->device;
 
 	err = of_mdiobus_register(new_bus, mdio_node);
-	if (err != 0) {
+	if (err == -ENODEV) {
+		err = 0;
+		dev_info(dev, "MDIO bus is disabled\n");
+		goto bus_register_fail;
+	} else if (err) {
 		dev_err(dev, "Cannot register the MDIO bus\n");
 		goto bus_register_fail;
 	}