On Thu, May 12, 2016 at 12:00:33PM +0200, Uwe Kleine-König wrote: > The framework only asserts (for now) that the reset gpio is not active. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> > --- > Documentation/devicetree/bindings/net/phy.txt | 3 +++ > drivers/net/phy/phy_device.c | 8 ++++++++ > 2 files changed, 11 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt > index bc1c3c8bf8fa..c00a9a894547 100644 > --- a/Documentation/devicetree/bindings/net/phy.txt > +++ b/Documentation/devicetree/bindings/net/phy.txt > @@ -35,6 +35,8 @@ Optional Properties: > - broken-turn-around: If set, indicates the PHY device does not correctly > release the turn around line low at the end of a MDIO transaction. > > +- reset-gpios: Reference to a GPIO used to reset the phy. > + And also active mode flag should be specified. > Example: > > ethernet-phy@0 { > @@ -42,4 +44,5 @@ ethernet-phy@0 { > interrupt-parent = <40000>; > interrupts = <35 1>; > reg = <0>; > + reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>; > }; > diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c > index e551f3a89cfd..7d666ab47271 100644 > --- a/drivers/net/phy/phy_device.c > +++ b/drivers/net/phy/phy_device.c > @@ -34,6 +34,7 @@ > #include <linux/io.h> > #include <linux/uaccess.h> > #include <linux/of.h> > +#include <linux/gpio/consumer.h> > > #include <asm/irq.h> > > @@ -1569,9 +1570,16 @@ static int phy_probe(struct device *dev) > struct device_driver *drv = phydev->mdio.dev.driver; > struct phy_driver *phydrv = to_phy_driver(drv); > int err = 0; > + struct gpio_descs *reset_gpios; > > phydev->drv = phydrv; > > + /* take phy out of reset */ > + reset_gpios = devm_gpiod_get_array_optional(dev, "reset", > + GPIOD_OUT_LOW); > + if (IS_ERR(reset_gpios)) > + return PTR_ERR(reset_gpios); > + > /* Disable the interrupt if the PHY doesn't support it > * but the interrupt is still a valid one > */ > -- > 2.8.0.rc3 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html