1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h
new file mode 100644
index 000000000000..beaf6c9804eb
--- /dev/null
+++ b/drivers/soundwire/cadence_master.h
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+// Copyright(c) 2015-17 Intel Corporation.
+
+#ifndef __SDW_CADENCE_H
+#define __SDW_CADENCE_H
+
+/**
+ * struct sdw_cdns - Cadence driver context
+ * @dev: Linux device
+ * @bus: Bus handle
+ * @instance: instance number
+ * @response_buf: SoundWire response buffer
+ * @tx_complete: Tx completion
+ * @defer: Defer pointer
+ * @registers: Cadence registers
+ * @link_up: Link status
+ * @msg_count: Messages sent on bus
+ */
+struct sdw_cdns {
+	struct device *dev;
+	struct sdw_bus bus;
+	unsigned int instance;
+
+	u32 response_buf[0x80];
+	struct completion tx_complete;
+	struct sdw_defer *defer;
+
+	void __iomem *registers;
+
+	bool link_up;
+	unsigned int msg_count;
+};
+
+#define bus_to_cdns(_bus) container_of(_bus, struct sdw_cdns, bus)
+
+/* Exported symbols */
+
+int sdw_cdns_probe(struct sdw_cdns *cdns);
+extern struct sdw_master_ops sdw_cdns_master_ops;
+
+irqreturn_t sdw_cdns_irq(int irq, void *dev_id);
+irqreturn_t sdw_cdns_thread(int irq, void *dev_id);
+
+int sdw_cdns_init(struct sdw_cdns *cdns);
+int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns);
+
+
+#endif /* __SDW_CADENCE_H */