1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/staging/greybus/gbphy.h b/drivers/staging/greybus/gbphy.h
new file mode 100644
index 000000000000..8ee68055ccc4
--- /dev/null
+++ b/drivers/staging/greybus/gbphy.h
@@ -0,0 +1,110 @@
+/*
+ * Greybus Bridged-Phy Bus driver
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * Released under the GPLv2 only.
+ */
+
+#ifndef __GBPHY_H
+#define __GBPHY_H
+
+struct gbphy_device {
+	u32 id;
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_bundle *bundle;
+	struct list_head list;
+	struct device dev;
+};
+#define to_gbphy_dev(d) container_of(d, struct gbphy_device, dev)
+
+static inline void *gb_gbphy_get_data(struct gbphy_device *gdev)
+{
+	return dev_get_drvdata(&gdev->dev);
+}
+
+static inline void gb_gbphy_set_data(struct gbphy_device *gdev, void *data)
+{
+	dev_set_drvdata(&gdev->dev, data);
+}
+
+struct gbphy_device_id {
+	__u8 protocol_id;
+};
+
+#define GBPHY_PROTOCOL(p)		\
+	.protocol_id	= (p),
+
+struct gbphy_driver {
+	const char *name;
+	int (*probe)(struct gbphy_device *,
+		     const struct gbphy_device_id *id);
+	void (*remove)(struct gbphy_device *);
+	const struct gbphy_device_id *id_table;
+
+	struct device_driver driver;
+};
+#define to_gbphy_driver(d) container_of(d, struct gbphy_driver, driver)
+
+int gb_gbphy_register_driver(struct gbphy_driver *driver,
+			     struct module *owner, const char *mod_name);
+void gb_gbphy_deregister_driver(struct gbphy_driver *driver);
+
+#define gb_gbphy_register(driver) \
+	gb_gbphy_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
+#define gb_gbphy_deregister(driver) \
+	gb_gbphy_deregister_driver(driver)
+
+/**
+ * module_gbphy_driver() - Helper macro for registering a gbphy driver
+ * @__gbphy_driver: gbphy_driver structure
+ *
+ * Helper macro for gbphy drivers to set up proper module init / exit
+ * functions.  Replaces module_init() and module_exit() and keeps people from
+ * printing pointless things to the kernel log when their driver is loaded.
+ */
+#define module_gbphy_driver(__gbphy_driver)	\
+	module_driver(__gbphy_driver, gb_gbphy_register, gb_gbphy_deregister)
+
+#ifdef CONFIG_PM
+static inline int gbphy_runtime_get_sync(struct gbphy_device *gbphy_dev)
+{
+	struct device *dev = &gbphy_dev->dev;
+	int ret;
+
+	ret = pm_runtime_get_sync(dev);
+	if (ret < 0) {
+		dev_err(dev, "pm_runtime_get_sync failed: %d\n", ret);
+		pm_runtime_put_noidle(dev);
+		return ret;
+	}
+
+	return 0;
+}
+
+static inline void gbphy_runtime_put_autosuspend(struct gbphy_device *gbphy_dev)
+{
+	struct device *dev = &gbphy_dev->dev;
+
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
+}
+
+static inline void gbphy_runtime_get_noresume(struct gbphy_device *gbphy_dev)
+{
+	pm_runtime_get_noresume(&gbphy_dev->dev);
+}
+
+static inline void gbphy_runtime_put_noidle(struct gbphy_device *gbphy_dev)
+{
+	pm_runtime_put_noidle(&gbphy_dev->dev);
+}
+#else
+static inline int gbphy_runtime_get_sync(struct gbphy_device *gbphy_dev) { return 0; }
+static inline void gbphy_runtime_put_autosuspend(struct gbphy_device *gbphy_dev) {}
+static inline void gbphy_runtime_get_noresume(struct gbphy_device *gbphy_dev) {}
+static inline void gbphy_runtime_put_noidle(struct gbphy_device *gbphy_dev) {}
+#endif
+
+#endif /* __GBPHY_H */
+