Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> writes: > This patch makes it possible to set the connection of the usbphy to the > soc. It is derived from the oftree bindings for the ethernetphy and adds > similar helperfunctions. > > Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> > Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> > --- > drivers/of/Kconfig | 4 ++++ > drivers/of/Makefile | 1 + > drivers/of/of_usbphy.c | 49 +++++++++++++++++++++++++++++++++++++++++++++ > include/linux/of_usbphy.h | 15 ++++++++++++++ > include/linux/usb/phy.h | 8 ++++++++ > 5 files changed, 77 insertions(+) > create mode 100644 drivers/of/of_usbphy.c > create mode 100644 include/linux/of_usbphy.h This looks a bit like Felipe's call, cc'ing him. > > diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig > index dfba3e6..28f99fb 100644 > --- a/drivers/of/Kconfig > +++ b/drivers/of/Kconfig > @@ -67,6 +67,10 @@ config OF_MDIO > help > OpenFirmware MDIO bus (Ethernet PHY) accessors > > +config OF_USBPHY > + depends on USB > + def_bool y > + > config OF_PCI > def_tristate PCI > depends on PCI > diff --git a/drivers/of/Makefile b/drivers/of/Makefile > index e027f44..fdcaf51 100644 > --- a/drivers/of/Makefile > +++ b/drivers/of/Makefile > @@ -6,6 +6,7 @@ obj-$(CONFIG_OF_IRQ) += irq.o > obj-$(CONFIG_OF_DEVICE) += device.o platform.o > obj-$(CONFIG_OF_I2C) += of_i2c.o > obj-$(CONFIG_OF_NET) += of_net.o > +obj-$(CONFIG_OF_USBPHY) += of_usbphy.o > obj-$(CONFIG_OF_SELFTEST) += selftest.o > obj-$(CONFIG_OF_MDIO) += of_mdio.o > obj-$(CONFIG_OF_PCI) += of_pci.o > diff --git a/drivers/of/of_usbphy.c b/drivers/of/of_usbphy.c > new file mode 100644 > index 0000000..2e71f7b > --- /dev/null > +++ b/drivers/of/of_usbphy.c > @@ -0,0 +1,49 @@ > +/* > + * OF helpers for network devices. > + * > + * This file is released under the GPLv2 > + * > + * Initially copied out of drivers/of/of_net.c > + */ > +#include <linux/etherdevice.h> > +#include <linux/kernel.h> > +#include <linux/of_usbphy.h> > +#include <linux/usb/phy.h> > +#include <linux/export.h> > + > +/** > + * It maps 'enum usb_phy_interface' found in include/linux/usb/phy.h > + * into the device tree binding of 'phy-mode', so that USB > + * device driver can get phy interface from device tree. > + */ > +static const char *usbphy_modes[] = { > + [USBPHY_INTERFACE_MODE_NA] = "", > + [USBPHY_INTERFACE_MODE_UTMI] = "utmi", > + [USBPHY_INTERFACE_MODE_UTMIW] = "utmiw", > + [USBPHY_INTERFACE_MODE_ULPI] = "ulpi", > + [USBPHY_INTERFACE_MODE_SERIAL] = "fsls", > +}; > + > +/** > + * of_get_phy_mode - Get phy mode for given device_node > + * @np: Pointer to the given device_node > + * > + * The function gets phy interface string from property 'phy-mode', > + * and return its index in phy_modes table, or errno in error case. > + */ > +const int of_get_usbphy_mode(struct device_node *np) > +{ > + const char *pm; > + int err, i; > + > + err = of_property_read_string(np, "phy-mode", &pm); > + if (err < 0) > + return err; > + > + for (i = 0; i < ARRAY_SIZE(usbphy_modes); i++) > + if (!strcasecmp(pm, usbphy_modes[i])) > + return i; > + > + return -ENODEV; > +} > +EXPORT_SYMBOL_GPL(of_get_usbphy_mode); > diff --git a/include/linux/of_usbphy.h b/include/linux/of_usbphy.h > new file mode 100644 > index 0000000..9a4132d > --- /dev/null > +++ b/include/linux/of_usbphy.h > @@ -0,0 +1,15 @@ > +/* > + * OF helpers for usb devices. > + * > + * This file is released under the GPLv2 > + */ > + > +#ifndef __LINUX_OF_USBPHY_H > +#define __LINUX_OF_USBPHY_H > + > +#ifdef CONFIG_OF_USBPHY > +#include <linux/of.h> > +extern const int of_get_usbphy_mode(struct device_node *np); > +#endif > + > +#endif /* __LINUX_OF_USBPHY_H */ > diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h > index a29ae1e..150eb69 100644 > --- a/include/linux/usb/phy.h > +++ b/include/linux/usb/phy.h > @@ -12,6 +12,14 @@ > #include <linux/notifier.h> > #include <linux/usb.h> > > +enum usb_phy_interface { > + USBPHY_INTERFACE_MODE_NA, > + USBPHY_INTERFACE_MODE_UTMI, > + USBPHY_INTERFACE_MODE_UTMIW, > + USBPHY_INTERFACE_MODE_ULPI, > + USBPHY_INTERFACE_MODE_SERIAL, > +}; > + > enum usb_phy_events { > USB_EVENT_NONE, /* no events or cable disconnected */ > USB_EVENT_VBUS, /* vbus valid event */ > -- > 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html