Merge tag 'staging-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver updates from Greg KH:
 "Here is the big staging/iio driver update for 5.4-rc1.

  Lots of churn here, with a few driver/filesystems moving out of
  staging finally:

     - erofs moved out of staging

     - greybus core code moved out of staging

  Along with that, a new filesytem has been added:

     - extfat

  to provide support for those devices requiring that filesystem (i.e.
  transfer devices to/from windows systems or printers)

  Other than that, there a number of new IIO drivers, and lots and lots
  and lots of staging driver cleanups and minor fixes as people continue
  to dig into those for easy changes.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (453 commits)
  Staging: gasket: Use temporaries to reduce line length.
  Staging: octeon: Avoid several usecases of strcpy
  staging: vhciq_core: replace snprintf with scnprintf
  staging: wilc1000: avoid twice IRQ handler execution for each single interrupt
  staging: wilc1000: remove unused interrupt status handling code
  staging: fbtft: make several arrays static const, makes object smaller
  staging: rtl8188eu: make two arrays static const, makes object smaller
  staging: rtl8723bs: core: Remove Macro "IS_MAC_ADDRESS_BROADCAST"
  dt-bindings: anybus-controller: move to staging/ tree
  staging: emxx_udc: remove local TRUE/FALSE definition
  staging: wilc1000: look for rtc_clk clock
  staging: dt-bindings: wilc1000: add optional rtc_clk property
  staging: nvec: make use of devm_platform_ioremap_resource
  staging: exfat: drop unused function parameter
  Staging: exfat: Avoid use of strcpy
  staging: exfat: use integer constants
  staging: exfat: cleanup spacing for casts
  staging: exfat: cleanup spacing for operators
  staging: rtl8723bs: hal: remove redundant variable n
  staging: pi433: Fix typo in documentation
  ...

1 files changed, 85 insertions, 0 deletions

diff --git a/include/linux/greybus/interface.h b/include/linux/greybus/interface.h
new file mode 100644
index 000000000000..ce4def881e6f
--- /dev/null
+++ b/include/linux/greybus/interface.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus Interface Block code
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#ifndef __INTERFACE_H
+#define __INTERFACE_H
+
+#include <linux/types.h>
+#include <linux/device.h>
+
+enum gb_interface_type {
+	GB_INTERFACE_TYPE_INVALID = 0,
+	GB_INTERFACE_TYPE_UNKNOWN,
+	GB_INTERFACE_TYPE_DUMMY,
+	GB_INTERFACE_TYPE_UNIPRO,
+	GB_INTERFACE_TYPE_GREYBUS,
+};
+
+#define GB_INTERFACE_QUIRK_NO_CPORT_FEATURES		BIT(0)
+#define GB_INTERFACE_QUIRK_NO_INIT_STATUS		BIT(1)
+#define GB_INTERFACE_QUIRK_NO_GMP_IDS			BIT(2)
+#define GB_INTERFACE_QUIRK_FORCED_DISABLE		BIT(3)
+#define GB_INTERFACE_QUIRK_LEGACY_MODE_SWITCH		BIT(4)
+#define GB_INTERFACE_QUIRK_NO_BUNDLE_ACTIVATE		BIT(5)
+#define GB_INTERFACE_QUIRK_NO_PM			BIT(6)
+
+struct gb_interface {
+	struct device dev;
+	struct gb_control *control;
+
+	struct list_head bundles;
+	struct list_head module_node;
+	struct list_head manifest_descs;
+	u8 interface_id;	/* Physical location within the Endo */
+	u8 device_id;
+	u8 features;		/* Feature flags set in the manifest */
+
+	enum gb_interface_type type;
+
+	u32 ddbl1_manufacturer_id;
+	u32 ddbl1_product_id;
+	u32 vendor_id;
+	u32 product_id;
+	u64 serial_number;
+
+	struct gb_host_device *hd;
+	struct gb_module *module;
+
+	unsigned long quirks;
+
+	struct mutex mutex;
+
+	bool disconnected;
+
+	bool ejected;
+	bool removed;
+	bool active;
+	bool enabled;
+	bool mode_switch;
+	bool dme_read;
+
+	struct work_struct mode_switch_work;
+	struct completion mode_switch_completion;
+};
+#define to_gb_interface(d) container_of(d, struct gb_interface, dev)
+
+struct gb_interface *gb_interface_create(struct gb_module *module,
+					 u8 interface_id);
+int gb_interface_activate(struct gb_interface *intf);
+void gb_interface_deactivate(struct gb_interface *intf);
+int gb_interface_enable(struct gb_interface *intf);
+void gb_interface_disable(struct gb_interface *intf);
+int gb_interface_add(struct gb_interface *intf);
+void gb_interface_del(struct gb_interface *intf);
+void gb_interface_put(struct gb_interface *intf);
+void gb_interface_mailbox_event(struct gb_interface *intf, u16 result,
+								u32 mailbox);
+
+int gb_interface_request_mode_switch(struct gb_interface *intf);
+
+#endif /* __INTERFACE_H */