usb: add devicetree helpers for determining dr_mode and phy_type
This adds two little devicetree helper functions for determining the
dr_mode (host, peripheral, otg) and phy_type (utmi, ulpi,...) from
the devicetree.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h
new file mode 100644
index 0000000..e460a24
--- /dev/null
+++ b/include/linux/usb/of.h
@@ -0,0 +1,28 @@
+/*
+ * OF helpers for usb devices.
+ *
+ * This file is released under the GPLv2
+ */
+
+#ifndef __LINUX_USB_OF_H
+#define __LINUX_USB_OF_H
+
+#include <linux/usb/otg.h>
+#include <linux/usb/phy.h>
+
+#ifdef CONFIG_OF
+enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np);
+enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
+#else
+static inline enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
+{
+ return USBPHY_INTERFACE_MODE_UNKNOWN;
+}
+
+static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
+{
+ return USB_DR_MODE_UNKNOWN;
+}
+#endif
+
+#endif /* __LINUX_USB_OF_H */
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 291e01b..154332b 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -92,4 +92,11 @@
/* for OTG controller drivers (and maybe other stuff) */
extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num);
+enum usb_dr_mode {
+ USB_DR_MODE_UNKNOWN,
+ USB_DR_MODE_HOST,
+ USB_DR_MODE_PERIPHERAL,
+ USB_DR_MODE_OTG,
+};
+
#endif /* __LINUX_USB_OTG_H */
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index 6b5978f..4403680 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -12,6 +12,15 @@
#include <linux/notifier.h>
#include <linux/usb.h>
+enum usb_phy_interface {
+ USBPHY_INTERFACE_MODE_UNKNOWN,
+ USBPHY_INTERFACE_MODE_UTMI,
+ USBPHY_INTERFACE_MODE_UTMIW,
+ USBPHY_INTERFACE_MODE_ULPI,
+ USBPHY_INTERFACE_MODE_SERIAL,
+ USBPHY_INTERFACE_MODE_HSIC,
+};
+
enum usb_phy_events {
USB_EVENT_NONE, /* no events or cable disconnected */
USB_EVENT_VBUS, /* vbus valid event */