Merge branch 'net-stmmac-remove-unnecessary-of_get_phy_mode-calls'

Russell King says:

====================
net: stmmac: remove unnecessary of_get_phy_mode() calls

This series removes unnecessary of_get_phy_mode() calls from the stmmac
glue drivers. stmmac_probe_config_dt() / devm_stmmac_probe_config_dt()
already gets the interface mode using device_get_phy_mode() and stores
it in plat_dat->phy_interface.

Therefore, glue drivers using of_get_phy_mode() are just duplicating
the work that has already been done.

This series adjusts the glue drivers to remove their usage of
of_get_phy_mode().
====================

Link: https://patch.msgid.link/Z9FQjQZb0IMaQJ9H@shell.armlinux.org.uk
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

9 files changed, 23 insertions, 56 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c
index ef99ef3f1ab4..37fe7c288878 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c
@@ -59,10 +59,11 @@ static void anarion_gmac_exit(struct platform_device *pdev, void *priv)
 	gmac_write_reg(gmac, GMAC_RESET_CONTROL_REG, 1);
 }
 
-static struct anarion_gmac *anarion_config_dt(struct platform_device *pdev)
+static struct anarion_gmac *
+anarion_config_dt(struct platform_device *pdev,
+		  struct plat_stmmacenet_data *plat_dat)
 {
 	struct anarion_gmac *gmac;
-	phy_interface_t phy_mode;
 	void __iomem *ctl_block;
 	int err;
 
@@ -79,11 +80,7 @@ static struct anarion_gmac *anarion_config_dt(struct platform_device *pdev)
 
 	gmac->ctl_block = ctl_block;
 
-	err = of_get_phy_mode(pdev->dev.of_node, &phy_mode);
-	if (err)
-		return ERR_PTR(err);
-
-	switch (phy_mode) {
+	switch (plat_dat->phy_interface) {
 	case PHY_INTERFACE_MODE_RGMII:
 		fallthrough;
 	case PHY_INTERFACE_MODE_RGMII_ID:
@@ -93,7 +90,7 @@ static struct anarion_gmac *anarion_config_dt(struct platform_device *pdev)
 		break;
 	default:
 		dev_err(&pdev->dev, "Unsupported phy-mode (%d)\n",
-			phy_mode);
+			plat_dat->phy_interface);
 		return ERR_PTR(-ENOTSUPP);
 	}
 
@@ -111,14 +108,14 @@ static int anarion_dwmac_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	gmac = anarion_config_dt(pdev);
-	if (IS_ERR(gmac))
-		return PTR_ERR(gmac);
-
 	plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);
 	if (IS_ERR(plat_dat))
 		return PTR_ERR(plat_dat);
 
+	gmac = anarion_config_dt(pdev, plat_dat);
+	if (IS_ERR(gmac))
+		return PTR_ERR(gmac);
+
 	plat_dat->init = anarion_gmac_init;
 	plat_dat->exit = anarion_gmac_exit;
 	anarion_gmac_init(pdev, gmac);
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
index 0a9c137cc4e6..ca4035cbb55b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
@@ -211,16 +211,12 @@ static int ipq806x_gmac_set_speed(struct ipq806x_gmac *gmac, int speed)
 	return 0;
 }
 
-static int ipq806x_gmac_of_parse(struct ipq806x_gmac *gmac)
+static int ipq806x_gmac_of_parse(struct ipq806x_gmac *gmac,
+				 struct plat_stmmacenet_data *plat_dat)
 {
 	struct device *dev = &gmac->pdev->dev;
-	int ret;
 
-	ret = of_get_phy_mode(dev->of_node, &gmac->phy_mode);
-	if (ret) {
-		dev_err(dev, "missing phy mode property\n");
-		return -EINVAL;
-	}
+	gmac->phy_mode = plat_dat->phy_interface;
 
 	if (of_property_read_u32(dev->of_node, "qcom,id", &gmac->id) < 0) {
 		dev_err(dev, "missing qcom id property\n");
@@ -398,7 +394,7 @@ static int ipq806x_gmac_probe(struct platform_device *pdev)
 
 	gmac->pdev = pdev;
 
-	err = ipq806x_gmac_of_parse(gmac);
+	err = ipq806x_gmac_of_parse(gmac, plat_dat);
 	if (err) {
 		dev_err(dev, "device tree parsing error\n");
 		return err;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
index c9636832a570..d178d5ddc7c7 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
@@ -456,7 +456,6 @@ static int mediatek_dwmac_config_dt(struct mediatek_dwmac_plat_data *plat)
 {
 	struct mac_delay_struct *mac_delay = &plat->mac_delay;
 	u32 tx_delay_ps, rx_delay_ps;
-	int err;
 
 	plat->peri_regmap = syscon_regmap_lookup_by_phandle(plat->np, "mediatek,pericfg");
 	if (IS_ERR(plat->peri_regmap)) {
@@ -464,12 +463,6 @@ static int mediatek_dwmac_config_dt(struct mediatek_dwmac_plat_data *plat)
 		return PTR_ERR(plat->peri_regmap);
 	}
 
-	err = of_get_phy_mode(plat->np, &plat->phy_mode);
-	if (err) {
-		dev_err(plat->dev, "not find phy-mode\n");
-		return err;
-	}
-
 	if (!of_property_read_u32(plat->np, "mediatek,tx-delay-ps", &tx_delay_ps)) {
 		if (tx_delay_ps < plat->variant->tx_delay_max) {
 			mac_delay->tx_delay = tx_delay_ps;
@@ -587,6 +580,7 @@ static int mediatek_dwmac_common_data(struct platform_device *pdev,
 {
 	int i;
 
+	priv_plat->phy_mode = plat->phy_interface;
 	plat->mac_interface = priv_plat->phy_mode;
 	if (priv_plat->mac_wol)
 		plat->flags &= ~STMMAC_FLAG_USE_PHY_WOL;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
index 9c2d62d133ad..a50782994b97 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
@@ -417,11 +417,7 @@ static int meson8b_dwmac_probe(struct platform_device *pdev)
 		return PTR_ERR(dwmac->regs);
 
 	dwmac->dev = &pdev->dev;
-	ret = of_get_phy_mode(pdev->dev.of_node, &dwmac->phy_mode);
-	if (ret) {
-		dev_err(&pdev->dev, "missing phy-mode property\n");
-		return ret;
-	}
+	dwmac->phy_mode = plat_dat->phy_interface;
 
 	/* use 2ns as fallback since this value was previously hardcoded */
 	if (of_property_read_u32(pdev->dev.of_node, "amlogic,tx-delay-ns",
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index eafe637540b6..0e4da216f942 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -794,9 +794,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
 	if (!ethqos)
 		return -ENOMEM;
 
-	ret = of_get_phy_mode(np, &ethqos->phy_mode);
-	if (ret)
-		return dev_err_probe(dev, ret, "Failed to get phy mode\n");
+	ethqos->phy_mode = plat_dat->phy_interface;
 	switch (ethqos->phy_mode) {
 	case PHY_INTERFACE_MODE_RGMII:
 	case PHY_INTERFACE_MODE_RGMII_ID:
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 342463587d06..2d4fee8b9ab1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1503,7 +1503,7 @@ static struct rk_priv_data *rk_gmac_setup(struct platform_device *pdev,
 	if (!bsp_priv)
 		return ERR_PTR(-ENOMEM);
 
-	of_get_phy_mode(dev->of_node, &bsp_priv->phy_iface);
+	bsp_priv->phy_iface = plat->phy_interface;
 	bsp_priv->ops = ops;
 
 	/* Some SoCs have multiple MAC controllers, which need
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
index 13b9c2a51fce..be57c6c12c1c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
@@ -185,7 +185,8 @@ static int sti_dwmac_set_mode(struct sti_dwmac *dwmac)
 }
 
 static int sti_dwmac_parse_data(struct sti_dwmac *dwmac,
-				struct platform_device *pdev)
+				struct platform_device *pdev,
+				struct plat_stmmacenet_data *plat_dat)
 {
 	struct resource *res;
 	struct device *dev = &pdev->dev;
@@ -204,12 +205,7 @@ static int sti_dwmac_parse_data(struct sti_dwmac *dwmac,
 	if (IS_ERR(regmap))
 		return PTR_ERR(regmap);
 
-	err = of_get_phy_mode(np, &dwmac->interface);
-	if (err && err != -ENODEV) {
-		dev_err(dev, "Can't get phy-mode\n");
-		return err;
-	}
-
+	dwmac->interface = plat_dat->phy_interface;
 	dwmac->regmap = regmap;
 	dwmac->gmac_en = of_property_read_bool(np, "st,gmac_en");
 	dwmac->ext_phyclk = of_property_read_bool(np, "st,ext-phyclk");
@@ -268,7 +264,7 @@ static int sti_dwmac_probe(struct platform_device *pdev)
 	if (!dwmac)
 		return -ENOMEM;
 
-	ret = sti_dwmac_parse_data(dwmac, pdev);
+	ret = sti_dwmac_parse_data(dwmac, pdev, plat_dat);
 	if (ret) {
 		dev_err(&pdev->dev, "Unable to parse OF data\n");
 		return ret;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index 4b7b2582a120..85723a78793a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -1155,11 +1155,10 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
 	struct stmmac_resources stmmac_res;
 	struct sunxi_priv_data *gmac;
 	struct device *dev = &pdev->dev;
-	phy_interface_t interface;
-	int ret;
 	struct stmmac_priv *priv;
 	struct net_device *ndev;
 	struct regmap *regmap;
+	int ret;
 
 	ret = stmmac_get_platform_resources(pdev, &stmmac_res);
 	if (ret)
@@ -1219,10 +1218,6 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = of_get_phy_mode(dev->of_node, &interface);
-	if (ret)
-		return -EINVAL;
-
 	plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);
 	if (IS_ERR(plat_dat))
 		return PTR_ERR(plat_dat);
@@ -1230,7 +1225,6 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
 	/* platform data specifying hardware features and callbacks.
 	 * hardware features were copied from Allwinner drivers.
 	 */
-	plat_dat->mac_interface = interface;
 	plat_dat->rx_coe = STMMAC_RX_COE_TYPE2;
 	plat_dat->tx_coe = 1;
 	plat_dat->flags |= STMMAC_FLAG_HAS_SUN8I;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
index 1b1ce2888b2e..9f098ff0ff05 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
@@ -116,11 +116,7 @@ static int sun7i_gmac_probe(struct platform_device *pdev)
 	if (!gmac)
 		return -ENOMEM;
 
-	ret = of_get_phy_mode(dev->of_node, &gmac->interface);
-	if (ret && ret != -ENODEV) {
-		dev_err(dev, "Can't get phy-mode\n");
-		return ret;
-	}
+	gmac->interface = plat_dat->phy_interface;
 
 	gmac->tx_clk = devm_clk_get(dev, "allwinner_gmac_tx");
 	if (IS_ERR(gmac->tx_clk)) {