+/* helpers for direct access thru low-level io interface */
+static inline int otg_io_read(struct otg_transceiver *otg, u32 reg)
+{
+ if (otg->io_ops && otg->io_ops->read)
+ return otg->io_ops->read(otg, reg);
+
+ return -EINVAL;
+}
+
+static inline int otg_io_write(struct otg_transceiver *otg, u32 reg, u32 val)
+{
+ if (otg->io_ops && otg->io_ops->write)
+ return otg->io_ops->write(otg, reg, val);
+
+ return -EINVAL;
+}
+
+static inline int
+otg_init(struct otg_transceiver *otg)
+{
+ if (otg->init)
+ return otg->init(otg);
+
+ return 0;
+}
+
+static inline void
+otg_shutdown(struct otg_transceiver *otg)
+{
+ if (otg->shutdown)
+ otg->shutdown(otg);
+}