diff mbox

[(net.git),2/3] Revert "stmmac: Fix 'eth0: No PHY found' regression"

Message ID 1459494436-27386-3-git-send-email-peppe.cavallaro@st.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Giuseppe CAVALLARO April 1, 2016, 7:07 a.m. UTC
This reverts commit 88f8b1bb41c6208f81b6a480244533ded7b59493.
due to problems on GeekBox and Banana Pi M1 board when
connected to a real transceiver instead of a switch via
fixed-link.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Cc: Andreas Färber <afaerber@suse.de>
Cc: Frank Schäfer <fschaefer.oss@googlemail.com>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c  |   11 ++++++++++-
 .../net/ethernet/stmicro/stmmac/stmmac_platform.c  |    9 +--------
 include/linux/stmmac.h                             |    1 -
 3 files changed, 11 insertions(+), 10 deletions(-)

Comments

Marc Haber April 13, 2016, 3:44 p.m. UTC | #1
On Fri, Apr 01, 2016 at 09:07:15AM +0200, Giuseppe Cavallaro wrote:
> This reverts commit 88f8b1bb41c6208f81b6a480244533ded7b59493.
> due to problems on GeekBox and Banana Pi M1 board when
> connected to a real transceiver instead of a switch via
> fixed-link.

This reversal is still needed in Linux 4.5.1 on Banana Pi.

Please consider including it in Linux 4.5.2.

Greetings
Marc

> 
> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
> Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org>
> Cc: Andreas Färber <afaerber@suse.de>
> Cc: Frank Schäfer <fschaefer.oss@googlemail.com>
> Cc: Dinh Nguyen <dinh.linux@gmail.com>
> Cc: David S. Miller <davem@davemloft.net>
> ---
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c  |   11 ++++++++++-
>  .../net/ethernet/stmicro/stmmac/stmmac_platform.c  |    9 +--------
>  include/linux/stmmac.h                             |    1 -
>  3 files changed, 11 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> index ea76129..af09ced 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> @@ -199,12 +199,21 @@ int stmmac_mdio_register(struct net_device *ndev)
>  	struct stmmac_priv *priv = netdev_priv(ndev);
>  	struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data;
>  	int addr, found;
> -	struct device_node *mdio_node = priv->plat->mdio_node;
> +	struct device_node *mdio_node = NULL;
> +	struct device_node *child_node = NULL;
>  
>  	if (!mdio_bus_data)
>  		return 0;
>  
>  	if (IS_ENABLED(CONFIG_OF)) {
> +		for_each_child_of_node(priv->device->of_node, child_node) {
> +			if (of_device_is_compatible(child_node,
> +						    "snps,dwmac-mdio")) {
> +				mdio_node = child_node;
> +				break;
> +			}
> +		}
> +
>  		if (mdio_node) {
>  			netdev_dbg(ndev, "FOUND MDIO subnode\n");
>  		} else {
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> index dcbd2a1..9cf181f 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> @@ -146,7 +146,6 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
>  	struct device_node *np = pdev->dev.of_node;
>  	struct plat_stmmacenet_data *plat;
>  	struct stmmac_dma_cfg *dma_cfg;
> -	struct device_node *child_node = NULL;
>  
>  	plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
>  	if (!plat)
> @@ -177,19 +176,13 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
>  		plat->phy_node = of_node_get(np);
>  	}
>  
> -	for_each_child_of_node(np, child_node)
> -		if (of_device_is_compatible(child_node,	"snps,dwmac-mdio")) {
> -			plat->mdio_node = child_node;
> -			break;
> -		}
> -
>  	/* "snps,phy-addr" is not a standard property. Mark it as deprecated
>  	 * and warn of its use. Remove this when phy node support is added.
>  	 */
>  	if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
>  		dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
>  
> -	if ((plat->phy_node && !of_phy_is_fixed_link(np)) || !plat->mdio_node)
> +	if ((plat->phy_node && !of_phy_is_fixed_link(np)) || plat->phy_bus_name)
>  		plat->mdio_bus_data = NULL;
>  	else
>  		plat->mdio_bus_data =
> diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
> index 4bcf5a6..6e53fa8 100644
> --- a/include/linux/stmmac.h
> +++ b/include/linux/stmmac.h
> @@ -114,7 +114,6 @@ struct plat_stmmacenet_data {
>  	int interface;
>  	struct stmmac_mdio_bus_data *mdio_bus_data;
>  	struct device_node *phy_node;
> -	struct device_node *mdio_node;
>  	struct stmmac_dma_cfg *dma_cfg;
>  	int clk_csr;
>  	int has_gmac;
> -- 
> 1.7.4.4
>
Marc Haber May 11, 2016, 6:33 p.m. UTC | #2
On Wed, Apr 13, 2016 at 05:44:25PM +0200, Marc Haber wrote:
> On Fri, Apr 01, 2016 at 09:07:15AM +0200, Giuseppe Cavallaro wrote:
> > This reverts commit 88f8b1bb41c6208f81b6a480244533ded7b59493.
> > due to problems on GeekBox and Banana Pi M1 board when
> > connected to a real transceiver instead of a switch via
> > fixed-link.
> 
> This reversal is still needed in Linux 4.5.1 on Banana Pi.
> 
> Please consider including it in Linux 4.5.2.

This reversal is still needed in Linux 4.5.4 on Banana Pi.

Please consider including it in Linux 4.5.5.

Greetings
Marc



> 
> > 
> > Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
> > Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org>
> > Cc: Andreas Färber <afaerber@suse.de>
> > Cc: Frank Schäfer <fschaefer.oss@googlemail.com>
> > Cc: Dinh Nguyen <dinh.linux@gmail.com>
> > Cc: David S. Miller <davem@davemloft.net>
> > ---
> >  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c  |   11 ++++++++++-
> >  .../net/ethernet/stmicro/stmmac/stmmac_platform.c  |    9 +--------
> >  include/linux/stmmac.h                             |    1 -
> >  3 files changed, 11 insertions(+), 10 deletions(-)
> > 
> > diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> > index ea76129..af09ced 100644
> > --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> > +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> > @@ -199,12 +199,21 @@ int stmmac_mdio_register(struct net_device *ndev)
> >  	struct stmmac_priv *priv = netdev_priv(ndev);
> >  	struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data;
> >  	int addr, found;
> > -	struct device_node *mdio_node = priv->plat->mdio_node;
> > +	struct device_node *mdio_node = NULL;
> > +	struct device_node *child_node = NULL;
> >  
> >  	if (!mdio_bus_data)
> >  		return 0;
> >  
> >  	if (IS_ENABLED(CONFIG_OF)) {
> > +		for_each_child_of_node(priv->device->of_node, child_node) {
> > +			if (of_device_is_compatible(child_node,
> > +						    "snps,dwmac-mdio")) {
> > +				mdio_node = child_node;
> > +				break;
> > +			}
> > +		}
> > +
> >  		if (mdio_node) {
> >  			netdev_dbg(ndev, "FOUND MDIO subnode\n");
> >  		} else {
> > diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> > index dcbd2a1..9cf181f 100644
> > --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> > +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> > @@ -146,7 +146,6 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
> >  	struct device_node *np = pdev->dev.of_node;
> >  	struct plat_stmmacenet_data *plat;
> >  	struct stmmac_dma_cfg *dma_cfg;
> > -	struct device_node *child_node = NULL;
> >  
> >  	plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
> >  	if (!plat)
> > @@ -177,19 +176,13 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
> >  		plat->phy_node = of_node_get(np);
> >  	}
> >  
> > -	for_each_child_of_node(np, child_node)
> > -		if (of_device_is_compatible(child_node,	"snps,dwmac-mdio")) {
> > -			plat->mdio_node = child_node;
> > -			break;
> > -		}
> > -
> >  	/* "snps,phy-addr" is not a standard property. Mark it as deprecated
> >  	 * and warn of its use. Remove this when phy node support is added.
> >  	 */
> >  	if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
> >  		dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
> >  
> > -	if ((plat->phy_node && !of_phy_is_fixed_link(np)) || !plat->mdio_node)
> > +	if ((plat->phy_node && !of_phy_is_fixed_link(np)) || plat->phy_bus_name)
> >  		plat->mdio_bus_data = NULL;
> >  	else
> >  		plat->mdio_bus_data =
> > diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
> > index 4bcf5a6..6e53fa8 100644
> > --- a/include/linux/stmmac.h
> > +++ b/include/linux/stmmac.h
> > @@ -114,7 +114,6 @@ struct plat_stmmacenet_data {
> >  	int interface;
> >  	struct stmmac_mdio_bus_data *mdio_bus_data;
> >  	struct device_node *phy_node;
> > -	struct device_node *mdio_node;
> >  	struct stmmac_dma_cfg *dma_cfg;
> >  	int clk_csr;
> >  	int has_gmac;
> > -- 
> > 1.7.4.4
> > 
> 
> -- 
> -----------------------------------------------------------------------------
> Marc Haber         | "I don't trust Computers. They | Mailadresse im Header
> Leimen, Germany    |  lose things."    Winona Ryder | Fon: *49 6224 1600402
> Nordisch by Nature |  How to make an American Quilt | Fax: *49 6224 1600421
diff mbox

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index ea76129..af09ced 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -199,12 +199,21 @@  int stmmac_mdio_register(struct net_device *ndev)
 	struct stmmac_priv *priv = netdev_priv(ndev);
 	struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data;
 	int addr, found;
-	struct device_node *mdio_node = priv->plat->mdio_node;
+	struct device_node *mdio_node = NULL;
+	struct device_node *child_node = NULL;
 
 	if (!mdio_bus_data)
 		return 0;
 
 	if (IS_ENABLED(CONFIG_OF)) {
+		for_each_child_of_node(priv->device->of_node, child_node) {
+			if (of_device_is_compatible(child_node,
+						    "snps,dwmac-mdio")) {
+				mdio_node = child_node;
+				break;
+			}
+		}
+
 		if (mdio_node) {
 			netdev_dbg(ndev, "FOUND MDIO subnode\n");
 		} else {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index dcbd2a1..9cf181f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -146,7 +146,6 @@  stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
 	struct device_node *np = pdev->dev.of_node;
 	struct plat_stmmacenet_data *plat;
 	struct stmmac_dma_cfg *dma_cfg;
-	struct device_node *child_node = NULL;
 
 	plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
 	if (!plat)
@@ -177,19 +176,13 @@  stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
 		plat->phy_node = of_node_get(np);
 	}
 
-	for_each_child_of_node(np, child_node)
-		if (of_device_is_compatible(child_node,	"snps,dwmac-mdio")) {
-			plat->mdio_node = child_node;
-			break;
-		}
-
 	/* "snps,phy-addr" is not a standard property. Mark it as deprecated
 	 * and warn of its use. Remove this when phy node support is added.
 	 */
 	if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
 		dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
 
-	if ((plat->phy_node && !of_phy_is_fixed_link(np)) || !plat->mdio_node)
+	if ((plat->phy_node && !of_phy_is_fixed_link(np)) || plat->phy_bus_name)
 		plat->mdio_bus_data = NULL;
 	else
 		plat->mdio_bus_data =
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 4bcf5a6..6e53fa8 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -114,7 +114,6 @@  struct plat_stmmacenet_data {
 	int interface;
 	struct stmmac_mdio_bus_data *mdio_bus_data;
 	struct device_node *phy_node;
-	struct device_node *mdio_node;
 	struct stmmac_dma_cfg *dma_cfg;
 	int clk_csr;
 	int has_gmac;