From: Li Jun <jun.li@xxxxxxx>
USB phy driver may need to know the current working mode of
the controller, and can provide different settings according to
host mode or device mode.
Signed-off-by: Li Jun <jun.li@xxxxxxx>
Signed-off-by: Igor Opaniuk <igor.opaniuk@xxxxxxxxxxx>
---
v2:
- restored original commit author
- fixed build for multi_v7
include/linux/usb/phy.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index e4de6bc1f69b..d138703e3688 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -63,6 +63,13 @@ enum usb_otg_state {
OTG_STATE_A_VBUS_ERR,
};
+/* The usb role of phy to be working with */
+enum usb_current_mode {
+ USB_CURRENT_MODE_NONE,
+ USB_CURRENT_MODE_HOST,
+ USB_CURRENT_MODE_DEVICE,
+};
+
struct usb_phy;
struct usb_otg;
@@ -155,6 +162,13 @@ struct usb_phy {
* manually detect the charger type.
*/
enum usb_charger_type (*charger_detect)(struct usb_phy *x);
+
+ /*
+ * Set current working mode of the USB controller
+ * (device, host)
+ */
+ int (*set_mode)(struct usb_phy *x,
+ enum usb_current_mode mode);
};
/* for board-specific init logic */
@@ -213,6 +227,15 @@ usb_phy_vbus_off(struct usb_phy *x)
return x->set_vbus(x, false);
}
+static inline int
+usb_phy_set_mode(struct usb_phy *x, enum usb_current_mode mode)
+{
+ if (!x || !x->set_mode)
+ return 0;
+
+ return x->set_mode(x, mode);
+}
+
/* for usb host and peripheral controller drivers */
#if IS_ENABLED(CONFIG_USB_PHY)
extern struct usb_phy *usb_get_phy(enum usb_phy_type type);
--
2.17.1
